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EQT MIDSTREAM DESIGN AND CONSTRUCTION MANUAL DESIGN STANDARD WELDING AND JOINING 3.3 WELDING PROCEDURE QUALIFICATIONS AND REQUIREMENTS Total Pages: 101

Weld Procedure Qual_Req.docx Page 762 Revision / Save Date 12/15/2016

Table of Contents

Scope ........................................................................................................................................................................ 765 References ............................................................................................................................................................... 765

Governmental .................................................................................................................................................... 765 Industry Standards ............................................................................................................................................ 765

Glossary ................................................................................................................................................................... 765 1 Compliance with Codes and Standards ........................................................................................................ 765 2 Welding Procedures ........................................................................................................................................ 766

API 1104 Essential Welding Variables .................................................................................................... 766 API 1104 Non-Essential Welding Variables ............................................................................................ 767 In-service Welding Variables (API 1104 Annex B) .................................................................................. 767

3 Weld Procedure Qualification Testing Requirements ................................................................................. 767 Butt Weld Qualification Requirements ..................................................................................................... 767 Branch Weld Qualification Requirements ................................................................................................ 768 In-Service Sleeve Fillet Qualification Weld Requirements ...................................................................... 768 In-Service Branch Qualification Weld Requirements ............................................................................... 768

4 Weld Procedure Qualification Acceptance Criteria ..................................................................................... 768 Visual Examination .................................................................................................................................. 768 Destructive Testing Acceptance Criteria.................................................................................................. 768

4.2.1 Tensile Strength Test ................................................................................................................... 768 4.2.2 Nick-break Test ............................................................................................................................ 768 4.2.3 Root, Face or Side Bend Test ..................................................................................................... 769

5 Weld Procedures Qualified by Others ........................................................................................................... 769 6 Figures .............................................................................................................................................................. 769

Figure 1 - Filler Metal Groups .................................................................................................................. 769 Figure 2 - Location of Butt Weld Test Specimens for Procedure Qualification ....................................... 771 Figure 3 - Type and Quantity of Butt Weld Test Specimens Required for Procedure Qualification ........ 772 Figure 4 - Suggested In-service Procedure Qualification Test Assembly ............................................... 773 Figure 5 - Location of Test Specimens for In-service Procedure Qualification ....................................... 774 Figure 6 - Type and Quantity of Test Specimens for In-service Procedure Qualification ....................... 775 Figure 7 - Dimensioning of Imperfections in Exposed Weld Surfaces .................................................... 775

Procedure Group List ............................................................................................................................... 776 Approved Welding Procedures Groups ................................................................................................... 776

6.8.1 Group 1 ........................................................................................................................................ 776 6.8.2 Group 2 ........................................................................................................................................ 777 6.8.3 Group 3 ........................................................................................................................................ 777 6.8.4 Group 4 ........................................................................................................................................ 777



6.8.5 Group 5 ........................................................................................................................................ 777 6.8.6 Group 6 ........................................................................................................................................ 778 6.8.7 Group 7 ........................................................................................................................................ 778 6.8.8 Group 8 ........................................................................................................................................ 778 6.8.9 Group 9 ........................................................................................................................................ 778 6.8.10 Group 10 ...................................................................................................................................... 778 6.8.11 Group 11 ...................................................................................................................................... 778 6.8.12 Group 12 ...................................................................................................................................... 779 6.8.13 Group 13 ...................................................................................................................................... 780

7 Qualified Procedures ...................................................................................................................................... 781 Oxy-Acetylene Butt Welding Procedure OA-1 (PG 1 of 2) ...................................................................... 781 Oxy-Acetylene Butt Welding Procedure OA-2 (PG 1 of 2) ...................................................................... 783 SMAW Butt Welding Procedure BW-4 (PG 1 of 2) .................................................................................. 785 SMAW Branch-Groove Welding Procedure FW-4 (PG 1 of 3) ................................................................ 787 SMAW Butt Welding Procedure BW-1A (PG 1 of 2) ............................................................................... 790 SMAW Branch-Groove Welding Procedure FW-1 (PG 1 of 3) ................................................................ 793 SMAW Butt Welding Procedure BW-2 (PG 1 of 3) .................................................................................. 796 SMAW Branch-Groove Welding Procedure FW-2A (PG 1 of 3) ............................................................. 799

SMAW Butt Welding Procedure BW-3A (PG 1 of 3) ............................................................................... 802 SMAW Branch-Groove Welding Procedure FW-3A (PG 1 of 2) ............................................................. 805 SMAW Butt Welding Procedure BW-3B (PG 1 of 2) ............................................................................... 807 SMAW Branch-Groove Welding Procedure FW-3B (PG 1 of 2) ............................................................. 809 SMAW Butt Welding Procedure BW-3C (PG 1 of 3) ............................................................................... 811 SMAW Branch-Groove Welding Procedure FW-3C (PG 1 of 3) ............................................................. 814 SMAW Butt Welding Procedure BW-6A (PG 1 of 3) ............................................................................... 817 SMAW Branch-Groove Welding Procedure FW-6A (PG 1 of 2) ............................................................. 820 SMAW Butt Welding Procedure BW-7 (PG 1 of 3) .................................................................................. 822 SMAW Branch-Groove Welding Procedure FW-7 (PG 1 of 3) ................................................................ 825 SMAW Butt/Groove Welding Procedure BW-8 (PG 1 of 3) ..................................................................... 828 SMAW Butt/Groove Welding Procedure BW-9 (PG 1 of 3) ..................................................................... 831 SMAW Butt Welding Procedure BW-10 (PG 1 of 4) ................................................................................ 834 SMAW Branch-Groove Welding Procedure FW-10 (PG 1 of 3) .............................................................. 838 SMAW In-Service Fillet Welding Procedure HT-1 (PG 1 of 3) ................................................................ 841 SMAW In-Service Fillet Welding Procedure HT-2 (PG 1 of 3) ................................................................ 844 SMAW In-Service Fillet Welding Procedure HT-3 (PG 1 of 3) ................................................................ 847 SMAW Longitudinal Groove Welding Procedure HT-4 (PG 1 of 3) ......................................................... 850 SMAW Longitudinal Groove Welding Procedure HT-5 (PG 1 of 3) ......................................................... 853 SMAW In-Service Fillet Welding Procedure HT-6 (PG 1 of 3) ................................................................ 856



Version Control ....................................................................................................................................................... 859



Scope

This standard establishes the requirements for qualifying weld procedures, for welds fabricated on Company natural gas pipeline facilities as mandated by 49CFR192 requirements and Company natural gas liquid pipeline facilities as mandated by 49CFR195 requirements. This standard does not apply to welding that occurs during the manufacture of steel pipe or steel pipe components. This standard contains the company’s welding procedure specifications (WPS).

References Governmental

GOVERNMENT REGULATION REFERENCES

Code of Federal Regulations (CFR)

• Title 49 CFR 192 ‘Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards’ (PHMSA, DOT)

• Title 49 CFR 195, ‘Transportation of Hazardous Liquids by Pipelines.’ (PHMSA, DOT)

Industry Standards

INDUSTRY STANDARDS

American Petroleum Institute (API) *Latest edition incorporated by reference in Title 49 CFR Part 192

• API STD 1104, ‘Welding of Pipelines and Related Facilities including Annex B, In-service Welding’

Glossary

Term Definition

Procedure Qualification Record (PQR)

A record of welding variables used to produce an acceptable test weldment and the results of the test conducted on the weldment to qualify a welding procedure specification.

Welding Procedure Specification (WPS)

A Welding Procedure Specification (WPS) is the formal written document providing the required variables for a specific application to assure repeatability by properly trained welders and welding operators.

1 Compliance with Codes and Standards

In addition to complying with the requirements of this standard, the latest DOT-approved editions of the previously listed codes, standards, and specifications shall apply, except where noted, as well as any codes, standards, and specifications included by reference.

The use of the term ‘welding procedure(s)’ in Section 2 refers to the out-of-service welding procedures unless otherwise specified.

NOTE

http://www.ecfr.gov/cgi-bin/retrieveECFR?gp=&SID=0a1cfac29c1523d863aedcd3c309a78c&r=PART&n=49y3.1.1.1.8

http://www.ecfr.gov/cgi-bin/retrieveECFR?gp=&SID=0a1cfac29c1523d863aedcd3c309a78c&mc=true&r=PART&n=pt49.3.195

http://linkmanager.ihs.com/LinkManagerService/LKMLink.aspx?LinkRefName=API+STD+1104+-+Current&RefGroupId=81



2 Welding Procedures

• All welding procedure qualifications shall be recorded in detail and shall include the destructive qualification test results. Procedure Qualification records similar to those shown in API 1104 shall be used to qualify weld procedures developed for Company Welding Standards.

• Only welding procedures, both out-of-service and in-service, qualified by the Company shall be utilized on Company facilities unless approved by Engineering and the Welding Coordinator. Approved fabricators may use their welding procedures when contracted to build facilities for the company.

• Welding procedures noted within have been qualified in accordance with API 1104 requirements as set forth within 49CFR192 and 49CFR195 and reviewed to the lasted code approved version.

• Older in-service welding procedures qualified in accordance with API RP 1107 “Pipeline Maintenance Welding Practices”, have been reviewed to the latest edition of API 1104 Annex B.

• When qualifying in-service welding procedures (e.g., installing hot tap branch connections on all transmission, distribution, and jurisdictional gathering pipelines and facilities) the latest code edition of API 1104 Annex B shall be followed.

• All welding procedures shall be adhered to when qualifying welders and during production welding conducted as part of the construction, and maintenance activities performed on all Company natural gas and liquid pipeline facilities.

• All welding procedures, both out-of-service and in-service, shall address all essential and non-essential variables as outlined API 1104. For more details on each variable please refer to the most recent code referenced edition of API 1104.

API 1104 Essential Welding Variables

• A change in the welding process

• A change in the specified wall thickness range

• A major change in the joint design (e.g. a change from a V-groove to a U-groove)

• A change in the specified pipe and fitting material group (Note: Procedures shall be qualified using the highest grade within the group)

Group Material

A SMYS less than or equal to 42,000 PSI (i.e. X42)

B SMYS greater than 42,000 PSI (i.e. X42) but less than 65,000 PSI (i.e. X65)

C For materials with a SMYS greater than or equal to 65,000 PSI (i.e. X65), each grade shall receive a separate qualification test

• A change in the API 1104 defined filler metal group (Figure 1)

• A change in the current type (e.g. a change from DC to AC or vice versa or a change from electrode positive to electrode negative or vice versa)

• A change in the welding position

• A change in the weld direction (e.g. a change from vertical down or up)



• An increase in the maximum time between the completion of the root pass and the start of the hot pass

• A decrease in the minimum preheat temperature

• A change in the post-weld heat treatment requirements

• A change in the shielding gas and flow rate (Note: Not applicable for SMAW welding procedures)

• A change in the shielding flux (Note: Not applicable for SMAW welding procedures)

• A change in the specified travel speed range API 1104 Non-Essential Welding Variables

• A change in the specified pipe diameter range

• A change in the number of beads required to fill the joint

• A change in the specified amperage and/or voltage range

• A change in the flame characteristics (Note: Not applicable for SMAW welding procedures)

• A change in the time between the completion of the hot pass and the completion of the cap pass

• A change in the type and time delay before removal of pipe clamps

• A change in the interpass cleaning method

• A change in the preheat method, temperature control method, and ambient temperature range requiring preheating

In-service Welding Variables (API 1104 Annex B) In addition to the variables described in Section 2.1 and 2.2, the following variables should be addressed for in-service welding procedures. Where there is a discrepancy, Section 2.3 shall govern.

• A change in the specified minimum yield strength is not an essential variable.

• A change in the specified carbon equivalent range should be identified. Carbon equivalent is not an essential variable. Carbon equivalent is determined by the following; ♦ CE IIW = %C + %Mn/6 + (%Cu + %Ni)/15 + (%Cr + %Mo + %V)/5

• An increase in the severity of the pipeline operating conditions

• A change in the specified wall thickness range is not an essential variable.

• A change from a temper bead weld deposition sequence to any other sequence.

• The required welding heat input range should be specified 3 Weld Procedure Qualification Testing Requirements

The destructive testing methods, the method of removing the test specimens, and the dimensions and preparation of the test specimens are described in the latest version of API 1104.

Butt Weld Qualification Requirements Upon completion, the test weld shall be allowed to air cool prior to removing and testing of test specimens (Figure 2 and Figure 3). It is recommended to qualify welding procedures using a pipe with a wall thickness of at least 1/4 - inch (6.4 mm) but less than or equal to 1/2 - inch.


Weld Procedure Qual_Req.docx 68 Revision / Save Date 12/15/2016

Branch Weld Qualification Requirements Upon completion, the test weld shall be allowed to air cool prior to removing and testing of the test specimens and testing. Two (2) nick-break specimens shall be removed from the crotch location of the branch weld and two (2) nick-break specimens shall be removed from the saddle location of the branch weld. It may be necessary to make two branch welds to obtain the required number of test specimens.

In-Service Sleeve Fillet Qualification Weld Requirements

• The in-service sleeve fillet qualification weld should be made under conditions which simulate the cooling potential of an operating pipeline (Figure 4). The simulated cooling conditions should take into account the wall thickness of the pipe and the flowing pipe contents.

• The in-service sleeve fillet qualification weld should be fabricated on pipe with an applicable CE value.

• Upon completion, the in-service fillet qualification weld shall be allowed to air cool prior to removing and testing of the test specimens (Figure 5 and Figure 6). There shall be a minimum of 24-hours between the completion of the weld and the removal of the test specimens.

In-Service Branch Qualification Weld Requirements

• The in-service branch qualification weld should be made under conditions which simulate the cooling potential of an operating pipeline. The simulated cooling conditions should take into account the wall thickness of the pipe and the flowing pipe contents.

• The in-service branch qualification weld should be fabricated on pipe with an applicable CE value.

• Upon completion, the in-service branch qualification weld shall be allowed to air cool prior to removing and testing of the test specimens (Figure 5 and Figure 6). There shall be a minimum of 24-hours between the completion of the weld and the removal of the test specimens.

4 Weld Procedure Qualification Acceptance Criteria Visual Examination

• All qualification welds must be free of cracks, inadequate penetration, burn-through, and other defects; and must present a neat workmanlike appearance.

• Undercutting adjacent to the cap on the outside of the pipe shall not exceed 1/32 - inch (0.8 mm) in depth or 12-1/2% of the pipe wall thickness, whichever is smaller; and there shall not be more than 2 - inches (50.8 mm) of undercutting in any continuous 12 - inch (304.8 mm) length of weld.

Destructive Testing Acceptance Criteria 4.2.1 Tensile Strength Test

• If the test specimen breaks in the weld or fusion zone and exceeds the minimum specified tensile strength of the pipe material and the acceptance criteria outlined in Section 4.2.2, it is considered acceptable.

• If the test specimen breaks in the pipe material and exceeds the minimum specified tensile strength of the pipe material it is considered acceptable.

4.2.2 Nick-break Test

• The exposed surfaces of each test specimen shall show complete penetration and fusion.

• The greatest dimension of any gas pocket shall not exceed 1/16 - inch (1.6 mm) with the combined area of all gas pockets not exceeding 2% of the total exposed surface area.



• Slag inclusions shall not be more than 1/32 - inch (0.8 mm) in depth nor 1/8 - inch (3.2 mm) or 1/2 the nominal wall thickness in length, whichever is shorter. There shall be at least 1/2 - inch (12.7 mm) of sound metal between adjacent slag inclusions as measured in Figure 7.

4.2.3 Root, Face or Side Bend Test The test specimen shall show no crack or other defect exceeding 1/8 - inch (3.2 mm) or 1/2 the nominal wall thickness, whichever is smaller, in any direction. Cracks which originate on the outer radius of the bend along the edges of the test specimen during testing and are less than 1/4 - inch (6.4 mm), measured in any direction shall not be considered unless obvious defects are observed.

5 Weld Procedures Qualified by Others The Company will accept welding procedures qualified by others. This may include but not be limited to, shop welding of vessels and assemblies. All such situations shall be approved by the Company Weld Coordinator and Engineering.

6 Figures Figure 1 - Filler Metal Groups

FILLER METAL GROUPS 1

Group AWS Specification Electrode Flux4

1 A5.1 A5.5

E6010, E6011 E7010, E7011

2 A5.5 E8010, E8011 E9010

3 A5.1 or A5.5 A5.5

E7015, E7016, E7018 E8015, E8016, E8018

E9018

42 A5.17 EL8, EL8K, EL12, EM5K, EM12K, EM13K, EM15K

P6XZ, F6X0, F6X2, F7XZ F7X0, F7X2

53 A5.18 A5.28

ER70S-2, ER70S-6 ER80S-D2 ER90S-G

6 A5.2 RG60, RG65

75 A5.20 E61T-GS E71T-GS

8 A5.29 E7AT8-K6

9 A5.29 E91T8-G

NOTES



FILLER METAL GROUPS 1

Group AWS Specification Electrode Flux4

1. Other electrodes, filler metals, and fluxes may be used but shall require separate procedure qualification.

2. Any combination of flux and electrode in Group 4 may be used to qualify a procedure. The combination shall be identified by its complete AWS Classification No. such as F7AO-EL12 or F6A2-EM12K. Only substitutions which result in the same AWS Classification Number are permitted without requalification.

3. A shielding gas is to be used with electrodes in Groups 5. 4. In the flux designation, the X can be either an A or P for As-welded or Post-weld heat treated 5. For root pass welding only.



Figure 2 - Location of Butt Weld Test Specimens for Procedure Qualification



Figure 3 - Type and Quantity of Butt Weld Test Specimens Required for Procedure Qualification

Outside Diameter of Pipe Quantity of Specimens

Inches Millimeters Tensile Strength

Nick-break

Root Bend

Face Bend

Side Bend Total

Wall Thickness ≤ 0.500 inch (12.7mm)

< 2.375 < 60.3 0b 2 2 0 0 4a

2.375 – 4.500 60.3 – 114.3 0b 2 2 0 0 4

> 4.500 – 12.750 114.3 – 323.9 2 2 2 2 0 8

> 12.750 > 323.9 4 4 4 4 0 16

Wall Thickness > 0.500 inch (12.7mm)

≤ 4.500 ≤ 114.3 0b 2 0 0 2 4

> 4.500 – 12.750 > 114.3 – 323.9 2 2 0 0 4 8

> 12.750 > 323.9 4 4 0 0 8 16

a One Nick-break and one root-bend specimen shall be taken from each of two test welds or for pipe less than or equal to 1.315 inches (33.4mm) in diameter, one full-section tensile-strength specimen shall be taken. b For materials with specified minimum yield strengths greater than 42,000 PSI (290 MPa), a minimum of one tensile test shall be required.



Figure 4 - Suggested In-service Procedure Qualification Test Assembly



Figure 5 - Location of Test Specimens for In-service Procedure Qualification



Figure 6 - Type and Quantity of Test Specimens for In-service Procedure Qualification

Quantity of Specimensa

Wall Thickness Weld Type Tensile Nick-

Break Root Bend

Face Bend

Side Bend

Macro Test Total

≤ 0.500 inch (12.7mm)

Groove 2 2 2 2 8 Sleeve 4b 4 4 12 Branch 4b 4 4 12

> 0.500 inch (12.7mm)

Groove 2 2 4 8 Sleeve 4b 4 4 12 Branch 4b 4 4 12

a For pipe or branch diameter less than or equal to 4.500 - inches (114.3mm), two welds may be required. b At the owner’s option, the remaining portion of these specimens may be prepared for and submitted to the Face-Bend Test (API 1104 Annex B 2.4.5) after they are submitted to the nick-break test.

Figure 7 - Dimensioning of Imperfections in Exposed Weld Surfaces

Note: A broken nick-break test specimen is shown; however, this method of dimensioning applies also to broken tensile and fillet weld test specimens.



Procedure Group List - Approved Welding Procedures Groups

Group

Number Weld Type Grade O.D. Range W.T. Range

1 Butt and Branch Welds Grade X42 and Less 6.625 in. and

less Less than 3/16 in.

2 Butt and Branch Welds Grade X42 and Less 36 in. and less 3/16 in. thru

3/4 in.

3 Butt Welds Grade X42 and Less 36 in. and less Over 3/4 in.

4a More than Grade X42 and Less Than or Equal to Grade X60 36 in. and less Less than

3/16 in.

5 Butt and Branch Welds

More than Grade X42 and Less Than or Equal to Grade X60 36 in. and less 3/16 in. thru

3/4 in.

6 Butt Welds More than Grade X42 and Less Than or Equal to Grade X60 36 in. and less Over 3/4 in.

7a Grade X65 36 in. and less Less than 3/16 in.

8 Butt and Branch Welds Grade X65 36 in. and less 3/16 in. thru

3/4 in.

9a Grade X65 36 in. and less Over 3/4 in.

10a Grade X70 36 in. and less Less than 3/16 in.


3/4 in.


1.25 in.

13 In-Service Welding Procedures Various Various Various

a. These groups have no current qualified WPSs. New WPSs will be developed as required.

6.8.1 Group 1

WPS# Process Pipe Grade Diameter Range W.T. Range Filler

Metal Run Pipe Branch Run

Pipe Branch Run Pipe Branch

BW-4 SMAW X42 and Less

6.625 in. and Less

Under 3/16 in.

E6010 or

E7010

FW-4 SMAW X42 and Less

X42 and Less

6.625 in. and Less

Under 3/16 in.

E6010 or

E7010

OA-1 OAW Grade B and Less

4.5 in. and Less

Under 3/16 in. R45 or

R60



6.8.2 Group 2




BW-1A SMAW X42 and Less

36 in. and Less

3/16 in.

thru 3/4 in.

E6010

or E7010

FW-1 SMAW X42 and Less

36 in. and Less

3/16 in.

thru 3/4 in.

E6010

or E7010

OA-2 OAW Grade B and Less

4.5 in. and Less

3/16 in.

thru 3/4 in.

R45 or R60

6.8.3 Group 3




BW-8 SMAW X42 and Less

36 inch

and Less

Over

¾ inch

E6010 E7018

6.8.4 Group 4 (No WPSs) 6.8.5 Group 5




BW-2 SMAW

More than

X42 to X60

36 in. and Less

3/16 in.

thru 3/4 in.

E6010

or E7010

FW-2A SMAW

More than

X42 to X60

More than

X42 to X60

36 in. and Less

36 in. and Less

3/16 in. thru

3/4 in.

3/16 in. thru

3/4 in.

E6010 or

E7010



6.8.6 Group 6




BW-9 SMAW

More than

X42 to X60

36 inch

and less

Over ¾ inch E6010

E7018

6.8.7 Group 7 (No WPSs)

6.8.8 Group 8

WPS# Process Pipe Grade Diameter

Range W.T. Range Filler Metal Run

Pipe Branch Run Pipe Branch Run

Pipe Branch

BW-3A SMAW X65 36 in. and Less

3/16 in.

thru 3/4 in.

E8010 G

FW-3A SMAW X65 X65 36 in. and Less

36 in. and Less

3/16 in. thru

3/4 in.

3/16 in. thru 3/4

in. E8010 G

BW-3B SMAW X65 36 in. and Less

3/16 in.

thru 3/4 in.

E7010 P1 /

E8010 G

FW-3B SMAW X65 X65 36 in. and Less

36 in. and Less

3/16 in. thru

3/4 in.

3/16 in. thru 3/4

in.

E7010 P1 /

E8010 G

BW-3C SMAW X65 36 in. and Less

3/16 in.

thru 3/4 in.

E6010

5P+ P1 / E8010 G

FW-3C SMAW X65 X65 42 in. and Less

in. and Less

3/16 in. thru

3/4 in.

3/16 in. thru 3/4

in.

E6010 5P+ P1 / E8010 G

6.8.9 Group 9 (No WPSs) 6.8.10 Group 10 (No WPSs) 6.8.11 Group 11



WPS# Process Pipe Grade Diameter

Range W.T. Range Filler Metal Run

Pipe Branch Run Pipe Branch Run

Pipe Branch

BW-5 SMAW X70 36 in. and Less

3/16 in.

thru 3/4 in.

E8010 G

FW-5 SMAW X70 X70 36 in. and Less

36 in. and Less

3/16 in. thru

3/4 in.

3/16 in. thru

3/4 in. E8010 G


3/16 in.

thru 3/4 in.

E6010 5p+ E8010 G


36 in. and Less

3/16 in. thru

3/4 in.

3/16 in. thru

3/4 in.

E6010 5p+ E8010 G


3/16 in.

thru 3/4 in.

E6010 5p+ E8018 G


36 in. and Less

3/16 in. thru

3/4 in.

3/16 in. thru

3/4 in.

E6010 5p+ E8018 G

6.8.12 Group 12




BW-6A SMAW X70

42 in. and less

3/16in.

thru 1.25 in.

3/16in. thru

1.25 in

E6010 5p+

E8010 G

FW-6A SMAW X70 X70

42 in. and less

3/16in.

thru 1.25 in.

3/16in. thru

1.25 in

E6010 5p+

E8010 G

BW-10 SMAW X70 X70 42 in. and less

3/16in.

thru 1.25 in.

3/16in. thru

1.25 in

E6010/E8010 E9045

FW-10 SMAW X70 X70 42 in. and less

3/16in.

thru 1.25 in.

3/16in. thru

1.25 in

E6010/E8010 E9045



6.8.13 Group 13

In-Service Welding Procedures

WPS# Process PQR(s) Flow Rate Limit Pressure Limit C.E. Limit

HT-1 SMAW PQR HT-1 5/28/2003

Maximum flow rate of design

Maximum Pressure of

design N/A

HT-2 SMAW PQR HT-2 2/4/2004


Maximum Pressure of

design N/A

HT-3 SMAW HT3 1/7/2011


Maximum Pressure of

design N/A

HT-4 SMAW PQR HT-4 5/2/2012 N/A N/A N/A

HT-5 SMAW PQR HT-5 5/2/2012 N/A N/A N/A

HT-6 SMAW PQR HT-6 11/21/2012


Maximum Pressure of

design N/A

WPS# Pipe Grade Diameter Range W.T. Range Filler Metal Weld Type

HT-1 X42 and Less 36 in. and Less 3/16 in. thru 3/4 in. E7018 Groove/Fillet

Weld

HT-2 More than X42 to X60 36 in. and Less 3/16 in. thru 3/4

in. E7018 Groove/Fillet Weld

HT-3 X70 36 in. and Less 3/16 in. thru ¾ in. E8018 Groove/Fillet

Weld

HT-4 X42 and less 36 inch and less Over ¾ inch E7018 Groove/Fillet Weld

HT-5 More than X42 to X60 36 inch and less Over ¾ inch E7018 Groove/Fillet

Weld

HT-6 X65 36 inch and less 3/16 in. thru ¾ in. E7018 Groove/Fillet

Weld



7 Qualified Procedures Oxy-Acetylene Butt Welding Procedure OA-1 (PG 1 of 2)

API 1104, 19th edition Reviewed and meets the requirements of the API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Butt welds 2. All pipe diameters up to 4.5” inclusive 3. Wall thicknesses less than 0.188” 4. API-5L Grade B and lesser grades of steel pipe or equivalent 5. See 3.1, Welding and Inspection Requirements for further guidance.

A. Weld Process: Manual Oxy-Acetylene Welding (OAW)

Note: This procedure is an OAW procedure so electrical characteristics and flux type variables do not apply.

B. Pipe and Fitting Material

• API pipe grades up to API-5L Grade B inclusive, or

• Other materials with chemical and mechanical properties which comply with the above. C. Pipe Diameter: Up to 4.5” O.D. inclusive D. Pipe Wall Thickness: Up to 0.188” E. Joint Design

Note: No backing bar is required

F. Filler Metal AWS Classification R60 R45 Electrode Diameter 1/16 – in. to 5/32- in. 1/16- in. to 5/32- in. Filler Metal Group 6 N/A AWS Specification A5.2 A5.2

G. Number of Beads Wall Thickness Minimum # of Beads

0.125- in. to 0.187- in. 2

Note: The passes maybe deposited as stringer beads or a weave. The total number of

passes depends on the material thickness.



Oxy-Acetylene Butt Welding Procedure OA-1 (PG 2 of 2)

H. Flame Characteristics: Neutral I. Travel Speed Range: 1 – 2 ipm J. Welding Position and Travel Direction

Fixed position with vertical-up travel direction K. Preheat

Material Ambient Temperature Preheat Temperature Up to API-5L Grade B Inclusive or

Equivalent Below 32 ºF 200 – 300 ºF

32 ºF and Above None Note: Preheat shall be used to remove traces of moisture from the pipe prior to welding regardless of ambient temperature.

L. Time Intervals in Weld Cycle Maximum time between completion and cleaning of root and the start of the hot pass is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying hot pass.

M. Type of Line-up Clamp and Time Delay before Removal External, as applicable for pipe size and joint type. Permissible after root bead is completed.

N. Cleaning Cleaning shall be accomplished with use of a manual and/or power tool before each bead. Remove all rust, dirt, and other foreign matter before starting the weld; remove the slag from the bead surface before starting the next bead; and clean the finished weld.

O. Post-Weld Heat Treatment No post-weld heat treatment required.



Oxy-Acetylene Butt Welding Procedure OA-2 (PG 1 of 2) API 1104, 19th edition Reviewed and meets the requirements of the API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Butt welds 2. All pipe diameters up to 4.5” inclusive 3. Wall thicknesses from 0.188” to 0.750” inclusive 4. API-5L Grade B and lesser grades of steel pipe or equivalent 5. See 3.1, Welding and Inspection Requirements for further guidance.

A. Weld Process: Manual Oxy-Acetylene Welding (OAW)

Note: This procedure is an OAW procedure so electrical characteristics and flux type variables do not apply.


• API pipe grades up to API-5L Grade B inclusive, or

• Other materials with chemical and mechanical properties which comply with the bullet above. C. Pipe Diameter: Up to 4.5- in. O.D. inclusive. D. Pipe Wall Thickness: 0.188 - in. to 0.750 - in. inclusive. E. Joint Design

F. Filler Metal

AWS Classification R60 R45 Electrode Diameter 1/16 - in. to 5/32 - in. 1/16 - in. to 5/32 - in. Filler Metal Group 6 - AWS Specification A5.2 A5.2

G. Number of Beads Wall Thickness Minimum # of Beads

0.188 - in. to 0.250 - in. 3 0.251 - in. to 0.344 - in. 4 0.345 - in. to 0.499 - in. 5 0.500 - in. and Greater 6

Note: The passes maybe deposited as stringer beads or a weave. The total number of passes depends on the material thickness.




Oxy-Acetylene Butt Welding Procedure OA-2 (PG 2 of 2) H. Flame Characteristics

Neutral I. Travel Speed Range: 1 – 2 ipm J. Welding Position and Travel Direction: Fixed position with vertical-up travel direction K. Preheat

Material Ambient Temperature Preheat Temperature Up to API-5L Grade B Inclusive or

Equivalent Below 32 ºF 200 – 300 ºF

32 ºF and Above None Note: Preheat shall be used to remove traces of moisture from the pipe prior to welding regardless of ambient temperature.


M. Type of Line-up Clamp and Time Delay before Removal External, as applicable for pipe size and joint type. Permissible after root bead is completed.





SMAW Butt Welding Procedure BW-4 (PG 1 of 2) API 1104, 19th edition Reviewed and meets the requirements of the API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Butt welds 2. All pipe diameters up to 6.625” inclusive 3. Wall thicknesses less than 0.188” 4. API-5L X-42 and lesser grades of steel pipe or equivalent 5. See 3.1, Welding and Inspection Requirements for further guidance.

A. Weld Process: Shielded Metal Arc Welding (SMAW)

Note: This procedure is a SMAW procedure such that gas type, gas flow rate, flux type and flame characteristic variables do not apply.

B. Pipe and Fitting Material:

• API pipe grades up to API-5L X-42 inclusive, or

• ASTM Standards A-53-B, A-105-B, A-106-B, or

• Other materials with chemical and mechanical properties which comply with either of the bullets above.

C. Pipe Diameter: Up to 6.625” O.D. inclusive. D. Pipe Wall Thickness: Less than 0.188”. E. Joint Design:

F. Filler Metal: AWS Classification E6010 E7010 / E7010G Electrode Diameter 3/32” to 1/8” 3/32” to 1/8” Filler Metal Group 1 1 AWS Specification A5.1 A5.5 Note: It is preferred to use E6010 for all grades up to API-5L X-42 and E7010 or E7010G for API-5L X-42.




SMAW Butt Welding Procedure BW-4 (PG 2 of 2)

G. Number of Beads:

H. Electrical Characteristics and Travel Speed Range:

Process Electrode Diameter Polarity Voltage

Range Current Range

Travel Speed Range

Travel Direction

SMAW 3/32 – in. DCRP 20 – 26 65 – 130 3 – 14 ipm Vertical down

SMAW 1/8 – in. DCRP 20 – 26 65 – 130 3 – 14 ipm Vertical down

I. Welding Position: Fixed position. J. Preheat:

Material Ambient Temperature Preheat Temperature Up to API-5L X-42 Inclusive or

Equivalent Below 32ºF 200 – 300 ºF

32ºF and Above None Note: Preheat shall be used to remove traces of moisture from the pipe prior to welding regardless of ambient temperature. Preheat can be accomplished by propane torch, induction or resistance heating or any other method approved by Company. Preheat temperature can be measured by using either a temperature indicating crayon (“temple stick”) or a pyrometer.

. K. Time Intervals in Weld Cycle

Maximum time between completion and cleaning of root and the start of the hot pass is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying hot pass.

L. Type of Line-up Clamp and Time Delay before Removal External or internal, as applicable for pipe size and joint type. Permissible after root bead is 50% completed with external and 100% completed with internal clamp.

M. Cleaning Cleaning shall be accomplished with use of a manual and/or power tool before each bead. Remove all rust, dirt, and other foreign matter before starting the weld; remove the slag from the bead surface before starting the next bead; and clean the finished weld.

N. Post-Weld Heat Treatment - No post-weld heat treatment required.

Wall Thickness Minimum # of Beads 0.125” to 0.187” 2




SMAW Branch-Groove Welding Procedure FW-4 (PG 1 of 3) API 1104, 19th edition Reviewed and meets the requirements of the API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Branch-groove welds 2. All pipe diameters up to 6.625” inclusive 3. Wall thicknesses less than 0.188” 4. API-5L X-42 and lesser grades of steel pipe or equivalent 5. See 3.1, Welding and Inspection Requirements for further guidance.

A. Weld Process: Shielded Metal Arc Welding (SMAW) Note: This procedure is a SMAW procedure such that gas type, gas flow rate, flux type and flame characteristic variables do not apply.




• Other materials with chemical and mechanical properties which comply with either of the bullets above.

C. Pipe and Branch Diameter: Up to 6.625 - inches O.D. inclusive. D. Pipe and Branch Wall Thickness: Less than 0.188 - inch. E. Joint Design

F. Filler Metal AWS Classification E6010 E7010/ E7010G Electrode Diameter 3/32 - in. to 1/8 - in. 3/32 - in. to 1/8 - in. Filler Metal Group 1 1 AWS Specification A5.1 A5.5

Note: It is preferred to use E6010 for all grades up to API-5L X-42 and E7010 or E7010G for API-5L X-42.



SMAW Branch-Groove Welding Procedure FW-4 (PG 2 of 3)

G. Number of Beads

Wall Thickness Minimum Number of Beads

0.125 in. to 0.187 in. 2


H. Electrical Characteristics and Travel Speed Range


Range Current Range

Travel Speed Range

Travel Direction

SMAW 3/32 – inch DCRP 20 – 26 65 – 130 2 – 8 IPM Vertical down

SMAW 1/8 - inch DCRP 20 – 26 65 – 130 3 – 14 IPM Vertical down

I. Welding Position Fixed position.

J. Preheat

Material Ambient Temperature Preheat Temperature

Up to API-5L X-42 Inclusive or Equivalent Below 32 oF 200 – 300 oF 32 oF and Above None

Note: Preheat shall be used to remove traces of moisture from the pipe prior to welding regardless of ambient temperature. Preheat can be accomplished by propane torch, induction or resistance heating or any other method approved by Company. Preheat temperature can be measured by using either a temperature indicating crayon (“temple stick”) or a pyrometer.

K. Time Intervals in Weld Cycle

Maximum time between completion and cleaning of root and the start of the hot pass is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above, exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time Interval is exceeded the weld must be inspected and preheated before applying hot pass.

L. Type of Line-up Clamp and Time Delay before Removal External or internal, as applicable for pipe size and joint type. Permissible after root bead is 50% completed with external and 100% completed with internal clamp.



SMAW Branch-Groove Welding Procedure FW-4 (PG 3 of 3)

M. Cleaning Cleaning shall be accomplished with use of a manual and/or power tool before each bead. Remove all rust, dirt, and other foreign matter before starting the weld; remove the slag from the bead surface before starting the next bead; and clean the finished weld.

N. Post-Weld Heat Treatment No post-weld heat treatment required.



SMAW Butt Welding Procedure BW-1A (PG 1 of 2) API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Butt welds 2. All pipe diameters up to 36” inclusive; up to 42” inclusive for station header piping 3. Wall thicknesses from 0.188” to 0.750” inclusive 4. API-5L X-42 and lesser grades of steel pipe or equivalent 5. See 3.1, Welding and Inspection Requirements for further guidance.



B. Number of Welders: 1 or more for diameters 12.750-inch and less, 2 or more for diameters greater than 12.750 inch on the root and hot pass

C. Pipe and Fitting Material



• Other materials with chemical and mechanical properties which comply with either above. D. Pipe Diameter: Up to 36 - inches O.D. inclusive, to 42-inch for station header piping. E. Pipe Wall Thickness: 0.188 - inch to 0.750 - inch inclusive. F. Joint Design

G. Filler Metal AWS Classification E6010 E7010/ E7010G Electrode Diameter 3/32 – inch to 3/16 – inch 3/32 – inch to 3/16 – inch Filler Metal Group 1 1 AWS Specification A5.1 A5.5 Note: It is preferred to use E6010 for all grades up to API-5L X-42 and E7010 or E7010G for API-5L X-42.




SMAW Butt Welding Procedure BW-1A (PG 2 of 3) H. Number of Beads

Wall Thickness (in) Minimum Number of Beads

Minimum Cap Passes

Note

0.188 to 0.200 2 1 Stripper passes may need to be deposited on the sides of the pipe (i.e. from 2 to 4 o’clock) to even out the weld deposit. Stripper passes do not count toward the minimum number of passes. A split cap shall be considered a single pass for the minimum count.

0.201 to 0.250 3 1

0.251 to 0.500 4 1 0.501 to .750 5 2

I. Electrical Characteristics and Travel Speed Range


Range Current Range

Travel Speed Range

Travel Direction

SMAW 3/32 in. DCRP 20 – 26 65 – 130 2 – 14 IPM Vertical Down

SMAW 1/8 in. DCRP 20 – 26 65 – 130 3 – 14 IPM Vertical down



J. Welding Position Fixed position.

K. Preheat

Material Diameter and Wall Ambient Temperature Preheat Temperature

Up to API-5L X-42 Inclusive or Equivalent

All Below 32 oF 200 – 300 oF

Less than 24” AND 0.500” wt and less 32 oF and Above None

24” and Greater OR over 0.500”wt All 200 – 300 oF


.



SMAW Butt Welding Procedure BW-1A (PG 3 of 3) L. Time Intervals in Weld Cycle

Maximum time between completion and cleaning of root and the start of the hot pass is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above, exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying hot pass.

M. Type of Line-up Clamp and Time Delay before Removal External or internal, as applicable for pipe size and joint type. Permissible after root bead is 50% completed with external and 100% completed with internal clamp.


O. Post-Weld Heat Treatment No post-weld heat treatment required



SMAW Branch-Groove Welding Procedure FW-1 (PG 1 of 3) API 1104, 19th edition Reviewed and meets the requirements of the API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Branch-groove welds 2. All pipe diameters up to 36” inclusive; up to 42” inclusive for station header piping 3. Wall thicknesses from 0.188” to 0.750” inclusive 4. API-5L X-42 and lesser grades of steel pipe or equivalent 5. See 3.1, Welding and Inspection Requirements for further guidance.




C. Pipe and Branch Diameter: Up to 36 - inches O.D. inclusive, to 42” for station header piping. D. Pipe and Fitting Material



• Other materials with chemical and mechanical properties which comply with either above. E. Pipe and Branch Wall Thickness: 0.188 - inch to 0.750 – inch inclusive. F. Joint Design

G. Filler Metal

AWS Classification E6010 E7010/ E7010G Electrode Diameter 3/32 – inch to 3/16 – inch 3/32 – inch to 3/16 – inch Filler Metal Group 1 1 AWS Specification A5.1 A5.5

It is preferred to use E6010 for all grades up to API-5L X-42 and E7010 or E7010G for API-5L X-42.



SMAW Branch-Groove Welding Procedure FW-1 (PG 2 of 3) H. Number of Beads


0.125 to 0.200. 2 0.201 to 0.250 3 0.251 to 0.500 4 0.501 to 0.750 5




Range Current Range

Travel Speed Range

Travel Direction

SMAW 3/32 – inch DCRP 20 – 26 65 – 130 2 – 14 IPM Vertical Down





K. Preheat









SMAW Branch-Groove Welding Procedure FW-1 (PG 3 of 3) L. Time Intervals in Weld Cycle

Maximum time between completion and cleaning of root and the start of the hot pass is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying hot pass.






SMAW Butt Welding Procedure BW-2 (PG 1 of 3) API 1104, 19th edition Reviewed and meets the requirements of the API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Butt welds 2. All pipe diameters up to 36” inclusive, up to 42” inclusive for station header piping 3. Wall thicknesses from 0.188” to 0.750” inclusive 4. Greater than API-5L X-42 but less than or equal to API-5L X-60 or equivalent 5. See 3.1, Welding and Inspection Requirements for further guidance.





• API pipe grades greater than API-5L X-42 but less than or equal to API-5L X-60, or

• Other materials with chemical and mechanical properties which comply with the bullet above. D. Pipe Diameter: Up to 36 - inches O.D. inclusive, to 42” for station header piping. E. Pipe Wall Thickness: 0.188 - inch to 0.750 - inch inclusive. F. Joint Design:

G. Filler Metal AWS Classification E6010 E7010/ E7010G Electrode Diameter 3/32 – inch to 3/16 – inch 3/32 – inch to 3/16 – inch Filler Metal Group 1 1 AWS Specification A5.1 A5.5





H. Number of Beads

Wall Thickness (in)

Minimum Number of Beads

Minimum Cap

Passes

Note


0.201 to 0.250 3 1

0.251 to 0.500 4 1 0.501 to .750 5 2



Range Current Range

Travel Speed Range

Travel Direction

SMAW 3/32 – in. DCRP 20 – 26 65 – 130 3 – 14 IPM Vertical Down

SMAW 1/8 – in. DCRP 20 – 26 65 – 130 7 – 14 IPM Vertical down



J. Welding Position: Fixed position. K. Preheat


Above API-5L X-42, less than X-60 Below 32 oF 200 – 300 oF 32 oF and Above None

X-60 or Equivalent Below 50 oF 225 – 300 oF 50 oF and Above None

All; 24 inch OD and greater OR W.T. greater than 0.500 inch All 225 – 300 oF

OR Carbon Content Greater than 0.32% All 225 – 300 oF

Carbon Equivalent (C + 1/4 Mn) Greater than 0.65%(2) All 225 – 300 oF

Note (1): Preheat shall be used to remove traces of moisture from the pipe prior to welding regardless of ambient temperature. Preheat can be accomplished by propane torch, induction or resistance heating or any other method approved by Company. Preheat temperature can be measured by using either a temperature indicating crayon (“temple stick”) or a pyrometer. Note (2): If carbon content or carbon equivalent is unknown the preheat temperature for the fitting material is recommended.

.



SMAW Branch-Groove Welding Procedure FW-2A (PG 1 of 3) API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Branch-groove welds 2. All pipe diameters up to 36” inclusive up to 42” inclusive for station header piping 3. Wall thicknesses from 0.188” to 0.750” inclusive 4. Greater than API-5L X-42 but less than or equal to API-5LX-60 or equivalent 5. See 3.1, Welding and Inspection Requirements for further guidance.






• Other materials with chemical and mechanical properties which comply with the bullet above. D. Pipe Diameter: Up to 36 - inches O.D. inclusive, to 42” for station header piping. E. Pipe Wall Thickness: 0.188 - inch to 0.750 - inch inclusive. F. Joint Design:

G. Filler Metal: AWS Classification E6010 E7010/ E7010G Electrode Diameter 3/32” to 3/16” 3/32” to 3/16” Filler Metal Group 1 1 AWS Specification A5.1 A5.5

Note: It is preferred to use 6010 5P+ root/ E7010 or E7010G remainder.



SMAW BRANCH-GROOVE WELDING PROCEDURE FW-2A (PG 2 of 3)

H. Number of Beads:

Wall Thickness (in) Minimum Number of Beads 0.188 to 0.200 2

0.201 to 0.250 3 0.251 to 0.500 4 0.501 to 0.750 5

Note: The passes may be deposited as stringer beads or a weave. The total number of passes depends on the material thickness.

I. Electrical Characteristics and Travel Speed Range:


Range Current Range

Travel Speed Range

Travel Direction

SMAW 3/32” DCRP 20 – 26 65 – 130 2 – 14 IPM Vertical Down SMAW 1/8” DCRP 20 – 26 65 – 130 2 – 14 IPM Vertical Down SMAW 5/32” DCRP 20 – 36 85 – 185 2 – 14 IPM Vertical Down SMAW 3/16” DCRP 20 – 36 90 – 225 6 – 12 IPM Vertical Down

J. Welding Position: Fixed position. K. Preheat:


Up to API-5L X-56 or Equivalent(1) Below 32 ºF 225 – 300 ºF 32 ºF and Above None

X-60 or Equivalent(1) Below 50 ºF 225 – 300 ºF 50 ºF and Above None

All; 24” OD and over OR W.T. over 0.500” All 225 – 300 ºF

OR Carbon Content Greater than 0.32%(2) All 225 – 300 ºF

Carbon Equivalent (C+1/4Mn) Greater than 0.65%(2) All 225 – 300 ºF

Note (1): Preheat shall be used to remove traces of moisture from the pipe prior to welding regardless of ambient temperature. Preheat can be accomplished by propane torch, induction or resistance heating or any other method approved by Company. Preheat temperature can be measured by using either a temperature indicating crayon (“temple stick”) or a pyrometer. Note (2): If carbon content or carbon equivalent is unknown the preheat temperature for the fitting material is recommended.



SMAW BRANCH-GROOVE WELDING PROCEDURE FW-2A (PG 3 of 3)

L. Time Intervals in Weld Cycle: Maximum time between root completion and cleaning and the start of the hot pass is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time Interval is exceeded the weld must be inspected and preheated before applying hot pass. M. Type of Line-up Clamp and Time Delay before Removal: External or internal, as applicable for pipe size and joint type. Permissible after root bead is 50% completed with external and 100% completed with internal clamp. N. Cleaning: Manual and/or power tool before each bead. Remove all rust, dirt, and other foreign matter before starting weld; remove slag from bead surface before starting next bead; clean holes with ice picks or chisels; clean finished weld. O. Post-Weld Heat Treatment: No post-weld heat treatment required.



SMAW Butt Welding Procedure BW-3A (PG 1 of 3) API 1104, 19th edition Reviewed and meets the requirements of the API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Butt welds 2. All pipe diameters up to 36” inclusive, up to 42” inclusive for station header piping 3. All wall thicknesses from 0.188” to 0.750” inclusive 4. API-5LX-65 or equivalent 5. Using AWS E8010 G electrodes 6. See 3.1, Welding and Inspection Requirements for further guidance.





• API pipe grades equal to API-5L X-65, or

• Other materials with chemical and mechanical properties which comply with the bullet above. D. Pipe Diameter: Up to 36 - inches O.D. inclusive, to 42” for station header piping. E. Pipe Wall Thickness: 0.188 - inch to 0.750 - inch inclusive. F. Joint Design

G. Filler Metal

AWS Classification E8010 G Electrode Diameter 3/32 – in. to 3/16 – in. Filler Metal Group 2 AWS Specification A5.5




SMAW Butt Welding Procedure BW-3A (PG 2 of 3) H. Number of Beads



Range Current Range

Travel Speed Range

Travel Direction







API-5L X-65 or Equivalent






Wall Thickness (in)


Minimum Cap Passes

Note

0.188 to 0.200 2 1 Stripper passes may need to be deposited on the sides of the pipe (i.e. from 2 to 4 o’clock)

to even out the weld deposit. Stripper passes do not count toward the minimum number of

passes. A split cap shall be considered a single pass for the minimum count.

0.201 to 0.250 3 1 0.251 to 0.500 4 1

0.501 to .750 5 2



SMAW Butt Welding Procedure BW-3A (PG 3 of 3) M. Type of Line-up Clamp and Time Delay before Removal

External or internal, as applicable for pipe size and joint type. Permissible after root bead is 50% completed with external and 100% completed with internal clamp.





SMAW Branch-Groove Welding Procedure FW-3A (PG 1 of 2) API 1104, 19th edition Reviewed and meets the requirements of the API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Branch-groove welds 2. All pipe diameters up to 36” inclusive, up to 42” inclusive for station header piping 3. All wall thicknesses from 0.188” to 0.750” inclusive 4. API-5LX-65 or equivalent 5. Using AWS E8010 G electrodes 6. See 3.1, Welding and Inspection Requirements for further guidance.


Note: This procedure is a SMAW procedure such that gas type, gas flow rate, flux type and flame N B. Number of Welders: 1 or more for diameters 12.750-inch and less, 2 or more for diameters

greater than 12.750 inch on the root and hot pass C. Pipe and Fitting Material



G. Filler Metal

AWS Classification E8010 G Electrode Diameter 3/32 – inch to 3/16 – inch Filler Metal Group 2 AWS Specification A5.5

H. Number of Beads

Wall Thickness (in) Minimum Number of Beads 0.188 to 0.200 2

0.201 - in. to 0.250 3

0.251 - in. to 0.499 4 0.500 - in. to 0.750 5




SMAW Branch-Groove Welding Procedure FW-3A (PG 2 of 2)



Range Current Range

Travel Speed Range

Travel Direction


















SMAW Butt Welding Procedure BW-3B (PG 1 of 2) API 1104, 19th edition Reviewed and meets the requirements of the API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Butt welds 2. All pipe diameters up to 36” inclusive; up to 42” inclusive for station header piping 3. All wall thicknesses from 0.188” to 0.750” inclusive 4. API-5LX-65 or equivalent 5. Using AWS E7010 P1 (root bead) and E8010 G electrodes 6. See 3.1, Welding and Inspection Requirements for further guidance.







Note: No backing bar is required. G. Filler Metal

AWS Classification E7010 P1 (root only) E8010 G (all passes) Electrode Diameter 3/32 – inch to 3/16 – inch 3/32 – inch to 3/16 – inch Filler Metal Group 1 2 AWS Specification A5.5 A5.5

H. Number of Beads

Wall Thickness (in)


Minimum Cap Passes

Note


0.201 to 0.250 3 1 0.251 to 0.500 4 1

0.501 to .750 5 2



SMAW Butt Welding Procedure BW-3B (PG 2 of 2) I. Electrical Characteristics and Travel Speed Range


Range Current Range

Travel Speed Range

Travel Direction















O. Post-Weld Heat Treatment - No post-weld heat treatment required.



SMAW Branch-Groove Welding Procedure FW-3B (PG 1 of 2) API 1104, 19th edition Reviewed and meets the requirements of the API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Branch-groove welds 2. All pipe diameters up to 36” inclusive; up to 42” inclusive for station header piping 3. All wall thicknesses from 0.188” to 0.750” inclusive 4. API-5LX-65 or equivalent 5. Using AWS E7010 P1 (root bead) and E8010 G electrodes 6. See 3.1, Welding and Inspection Requirements for further guidance.





• API pipe grades equal to API-5L X-65, or D. Other materials with chemical and mechanical properties which comply with the bullet above. E. Pipe Diameter: Up to 36 - inches O.D. inclusive, to 42” for station header piping. F. Pipe Wall Thickness: 0.188 - inch to 0.750 -inch inclusive. G. Joint Design

H. Filler Metal

AWS Classification E7010 P1 (root only) E8010 G (all passes) Electrode Diameter 3/32 – inch to 3/16 – inch 3/32 – inch to 3/16 – inch Filler Metal Group 1 2 AWS Specification A5.5 A5.5

I. Number of Beads

Wall Thickness (in) Minimum Number of Beads Note

0.188 to 0.200 2 The passes maybe deposited as stringer beads or a weave. The total number of passes depends on the material thickness.

0.201 to 0.250 3 0.251 to 0.500 4 0.501 to 0.750 5



SMAW Branch-Groove Welding Procedure FW-3B (PG 2 of 2)

J. Electrical Characteristics and Travel Speed Range


Range Current Range

Travel Speed Range

Travel Direction





K. Welding Position: Fixed position. L. Preheat







M. Time Intervals in Weld Cycle Maximum time between completion and cleaning of root and start of the hot pass is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying hot pass.

N. Type of Line-up Clamp and Time Delay before Removal External or internal, as applicable for pipe size and joint type. Permissible after root bead is 50% completed with external and 100% completed with internal clamp.

O. Cleaning Cleaning shall be accomplished with use of a manual and/or power tool before each bead. Remove all rust, dirt, and other foreign matter before starting the weld; remove the slag from the bead surface before starting the next bead; and clean the finished weld.

P. Post-Weld Heat Treatment - No post-weld heat treatment required.



SMAW Butt Welding Procedure BW-3C (PG 1 of 3) API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Butt welds 2. All pipe diameters up to 36” inclusive; up to 42” inclusive for station header piping 3. Wall thicknesses from 0.188” to 0.750” inclusive 4. API-5L X-65: to X65 and all lower API Grades. 5. See 3.1, Welding and Inspection Requirements for further guidance.





• API pipe and material equivalent to API-5L X-65 inclusive, or

• ASTM Material of equivalent chemical and mechanical properties or

• Other materials with chemical and mechanical properties which comply with either above. D. Pipe Diameter: Up to 36 - inches O.D. inclusive, to 42-inch for station header piping. E. Pipe Wall Thickness: 0.188 - inch to 0.750 - inch inclusive. F. Joint Design

G. Filler Metal AWS Classification E6010 (root only) E8010-G (all passes) Electrode Diameter 3/32 – inch to 3/16 – inch 3/32 – inch to 3/16 – inch Filler Metal Group 1 2 AWS Specification A5.1 A5.5

H. Number of Beads

Wall Thickness (in)


Minimum Cap Passes

Note

0.188 to 0.200 2 1 Stripper passes may need to be deposited on the sides of the pipe (i.e. from 2 to 4 o’clock)

to even out the weld deposit. Stripper passes do not count toward the minimum

number of passes. A split cap shall be considered a single pass for the minimum

count.

0.201 to 0.250 3 1 0.251 to 0.500 4 1

0.501 to .750 5 2



SMAW Butt Welding Procedure BW-3C (PG 2 of 3) I. Electrical Characteristics and Travel Speed Range


Range Current Range

Travel Speed Range

Travel Direction






K. Preheat


API-5L X-65 Inclusive or Equivalent





L. Time Intervals in Weld Cycle Maximum time between completion and cleaning of root and the start of the hot pass is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above, exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying hot pass.





SMAW Butt Welding Procedure BW-3C (PG 3 of 3) O. Post-Weld Heat Treatment

No post-weld heat treatment required



SMAW Branch-Groove Welding Procedure FW-3C (PG 1 of 3) API 1104, 20th edition

SUMMARY: This weld procedure encompasses:

1. Branch-groove welds 2. All pipe diameters up to 42” inclusive; up to 54” inclusive for station header piping 3. Wall thicknesses from 0.188” to 0.750” inclusive 4. API-5L X-65: to X65 and all lower API Grades. 5. See 3.1, Welding and Inspection Requirements for further guidance.


B. Number of Welders: 1 or more for diameters 12.750-inch and less, 2 or more for diameters greater than 12.750 inch on the root and hot pass.


• API pipe and material equivalent to API-5L X-65 inclusive, or

• ASTM Material of equivalent chemical and mechanical properties or

• Other materials with chemical and mechanical properties which comply with either above. D. Pipe and Branch Diameter: Up to 42 - inches O.D. inclusive, to 54” for station header piping. E. Pipe and Branch Wall Thickness: 0.188 - inch to 0.750 – inch inclusive. F. Joint Design

G. Filler Metal

AWS Classification E6010 5P+ (root pass only) E8010-G (all passes) Electrode Diameter 3/32 – inch to 3/16 – inch 3/32 – inch to 3/16 – inch Filler Metal Group 1 2 AWS Specification A5.1 A5.5



SMAW Branch-Groove Welding Procedure FW-3C (PG 2 of 3)

H. Number of Beads


0.125 to 0.200 2 0.201 to 0.250 3 0.251 to 0.500 4 0.501 to 0.750 5




Range Current Range

Travel Speed Range

Travel Direction






K. Preheat







.



SMAW Branch-Groove Welding Procedure FW-3C (PG 2 of 3




O. Post-Weld Heat Treatment - No post-weld heat treatment required.



SMAW Butt Welding Procedure BW-6A (PG 1 of 3) API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Butt welds 2. All pipe diameters up to 42” inclusive, up to 60” inclusive for station header piping 3. All wall thicknesses from 0.188” to 1.250” inclusive 4. API-5L X70 to X70 or to lower API grades. 5. Using AWS E6010 5P+ (root pass only) & E8010 G electrodes 6. See 3.1, Welding and Inspection Requirements for further guidance.





• Other materials with chemical and mechanical properties which comply with the above.ipe Diameter: Up to 42 - inches O.D. inclusive, to 60” for station header piping.

D. Pipe Wall Thickness: 0.188 - inch to 1.250 - inch inclusive. E. Joint Design

No backing bar is required.

F. Filler Metal

AWS Classification E6010 5P+ (root only) /E8010 remainder Electrode Diameter 3/32 – inch to 3/16 – inch Filler Metal Group 1& 2 AWS Specification A5.1 & A5.5



SMAW Butt Welding Procedure BW-6A (PG 2 of 3)

G. Number of Beads

Wall Thickness (in)


Minimum Cap Passes

Note


0.201 to 0.250 3 1 0.251 to 0.500 4 1 0.501 to .750 5 2 0.751 to 1.0. 6 3

1.01 to 1.250 7 3

H. Electrical Characteristics and Travel Speed Range


Range Current Range

Travel Speed Range

Travel Direction

SMAW 3/32 – in. DCRP 20 – 26 65 – 130 3 – 14 IPM

Vertical Down

SMAW 1/8 – in. DCRP 20 – 26 65 – 140 3 – 14 IPM

Vertical down

SMAW 5/32 – in. DCRP 20 – 36 85 – 185 7 – 14 IPM

Vertical down

SMAW 3/16 – in. DCRP 20 – 36 90 – 225 6 – 12 IPM

Vertical down

I. Welding Position: Fixed position. J. Preheat

Material Ambient Temperature

Preheat Temperature

API-5L X-70 or Equivalent All 200 – 300 oF

Note: Preheat shall be used to remove traces of moisture from the pipe prior to welding regardless of ambient temperature. Preheat can be accomplished by propane torch, induction or resistance heating or any other method approved by Company. Preheat temperature can be measured by using either a temperature indicating crayon (“temple stick”) or a pyrometer. Preheat shall be maintained during all weld passes



SMAW Butt Welding Procedure BW-6A (PG 3 of 3)

K. Time Intervals in Weld Cycle Maximum time between the completion and the cleaning of the root and the start of the hot pass is 5 minutes; with both passes being completed the same day that they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval exceeds 5 minutes, or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying the hot pass.

L. Type of Line-up Clamp and Time Delay before Removal External or internal, as applicable for pipe size and joint type will be used. Removal of the clamp will be permissible after the root bead is 50% completed when using an external clamp and 100% completed with the use of an internal clamp. The Root bead and Hot pass shall be completed before lowering the pipe onto skids.

M. Cleaning Cleaning shall be accomplished with use of a manual and/or power tool before each bead. Remove all rust, dirt, and other foreign matter before starting the weld; remove the slag from the bead surface before starting the next bead; and clean the finished weld

N. Post-Weld Heat Treatment No post-weld heat treatment require



SMAW Branch-Groove Welding Procedure FW-6A (PG 1 of 2) API 1104, 20th edition

SUMMARY: This weld procedure encompasses: 1. Branch-groove welds 2. All pipe diameters up to 42” inclusive, up to 60” inclusive for station header piping 3. All wall thicknesses from 0.188” to 1.25” inclusive 4. API-5LX-70 or equivalent 5. Using AWS E6010 5P+ (root pass only) & E8010 G electrodes 6. See 3.1, Welding and Inspection Requirements for further guidance.





• Other materials with chemical and mechanical properties which comply with the above. D. Pipe Diameter: Up to 42 - inches O.D. inclusive, to 60” for station header piping. E. Pipe Wall Thickness: 0.188 - inch to 1.25 - inch inclusive. F. Joint Design:

G. Filler Metal AWS Classification E6010 5P+ (root only) /E8010 G (all other passes) Electrode Diameter 3/32 – inch to 3/16 – inch Filler Metal Group 1 & 2 AWS Specification A5.1 & A5.5

H. Number of Beads SMAW Branch-Groove


Note

0.188 to 0.200 2 The passes may be deposited as stringer beads or as a weave. The total number of passes is dependent on the material thickness.

0.201 to 0.250 3 0.251 to 0.499 4 0.500 to .750 5 0.750 to 1.25 6 1.01 to 1.250 7



Welding Procedure FW-6A (PG 2 of 2)



Range Current Range

Travel Speed Range

Travel Direction








Note: Preheat shall be used to remove traces of moisture from the pipe prior to welding regardless of ambient temperature. Preheat can be accomplished by propane torch, induction or resistance heating or any other method approved by Company. Preheat temperature can be measured by using either a temperature indicating crayon (“temple stick”) or a pyrometer.Preheat shall be maintained during all weld passes

L. Time Intervals in Weld Cycle

Maximum time between completion and cleaning of root and start of the hot pass is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should be attempted to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying the hot pass.

M. Type of Line-up Clamp and Time Delay before Removal External or internal, as applicable for pipe size and joint type will be utilized. Removal of the clamp will be permissible after the root bead is 50% completed with external and 100% completed with internal clamp. Root bead and Hot pass shall be completed before lowering pipe onto skids





SMAW Butt Welding Procedure BW-7 (PG 1 of 3) API 1104, 20th edition NOTE: This procedure is an alternate to procedure BW-6A and will be implemented at the discretion of the EQT Weld Coordinator.

SUMMARY: This weld procedure encompasses: 1. Butt welds 2. All pipe diameters up to 36” inclusive, up to 42” inclusive for station header piping 3. All wall thicknesses from 0.188” to 0.750” inclusive 4. API-5LX-70 or equivalent 5. Using AWS E6010 5P+ Downhill Root pass & E8018 uphill for remaining passes 6. See 3.1, Welding and Inspection Requirements for further guidance.






• Other materials with chemical and mechanical properties which comply with the above. D. Pipe Diameter: Up to 36 - inches O.D. inclusive, to 42” for station header piping. E. Pipe Wall Thickness: 0.188 - inch to 0.750 - inch inclusive. F. Joint Design


G. Filler Metal

AWS Classification E6010 5P+ Root /E8018 all remaining passes

Electrode Diameter 3/32 – inch to 5/32 – inch Filler Metal Group 1& 3 AWS Specification A5.1 & A5.5



SMAW Butt Welding Procedure BW-7 (PG 2 of 3) H. Number of Beads

Wall Thickness (in)


Minimum Cap Passes

Note

0.188 to 0.200 2 1 Stripper passes may need to be deposited on the sides of the pipe (i.e. from 2 to 4 o’clock) to even out the weld deposit.

Stripper passes do not count toward the minimum number of passes. A split cap shall be considered a single pass for the

minimum count.

0.201 to 0.250 3 1 0.251 to 0.500 4 1

0.501 to .750 5 2



Range Current Range

Travel Speed Range

Travel Direction

SMAW E6010 3/32 – in. DCRP 20 – 26 65 – 130 3 – 14 IPM

Vertical Down

Root only

SMAW E6010 1/8 – in. DCRP 20 – 36 65 – 140 3 – 14 IPM

Vertical Down

Root Only

SMAW E6010 5/32 – in. DCRP 20 – 36 85 – 185 7 – 14 IPM

Vertical Down

Root only

SMAW E8018 3/32 – in. DCRP 20 – 29 80 – 150 2 – 10 IPM

Vertical Up on

remaining passes

SMAW E8018 1/8 – in. DCRP 23 – 39 90 – 150 2 – 10 IPM

Vertical Up on

remaining passes

SMAW E8018 5/32 – in. DCRP 20 - 36 120- 200 2 – 14 IPM

Vertical Up on

remaining passes

J. Welding Position: Fixed position




K. Preheat



Note: Preheat shall be used to remove traces of moisture from the pipe prior to welding regardless of ambient temperature. Preheat can be accomplished by propane torch, induction or resistance heating or any other method approved by Company. Preheat temperature can be measured by using either a temperature indicating crayon (“temple stick”) or a pyrometer Preheat shall be maintained during all weld passes

L. Time Intervals in Weld Cycle Maximum time between completion and cleaning of root and start of the hot pass is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should be attempted to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying the hot pass.

M. Type of Line-up Clamp and Time Delay before Removal External or internal, as applicable for pipe size and joint type will be utilized. Removal of the clamp will be permissible after the root bead is 50% completed with external and 100% completed with internal clamp. Root bead and Hot pass shall be completed before lowering pipe onto skids. If cracking is an issue the company may also require completion of a fill pass before lowering to a skid during the welding process.





SMAW Branch-Groove Welding Procedure FW-7 (PG 1 of 3) API 1104, 20th edition NOTE: This procedure is an alternate to procedure FW-6A and will be implemented at the discretion of the Weld Coordinator.

SUMMARY: This weld procedure encompasses: 1. Branch-groove welds 2. All pipe diameters up to 36” inclusive, up to 42” inclusive for station header piping 3. All wall thicknesses from 0.188” to 0.750” inclusive 4. API-5LX-70 or equivalent 5. Using AWS E6010 5P+ Downhill Root pass and E8018 uphill on remaining passes 6. See 3.1 Welding and Inspection Requirements for further guidance.






• Other materials with chemical and mechanical properties which comply with the above. D. Pipe Diameter: Up to 36 - inches O.D. inclusive, to 42” for station header piping. E. Pipe Wall Thickness: 0.188 - inch to 0.750 - inch inclusive. F. Joint Design:

G. Filler Metal

AWS Classification E6010 5P+ Root pass & E8018 for remaining passes Electrode Diameter 3/32 – inch to 5/32 – inch Filler Metal Group 1 & 3 AWS Specification A5.1 & A5.5






Range Current Range

Travel Speed Range

Travel Direction

SMAW E6010 3/32 – in. DCRP 20 – 26 65 – 130 3 – 14 IPM

Vertical Down

Root only

SMAW E6010 1/8 – in. DCRP 20 – 36 65 – 140 3 – 14 IPM

Vertical Down

Root Only

SMAW E6010 5/32 – in. DCRP 20 – 36 85 – 185 7 – 14 IPM

Vertical Down

Root only

SMAW E8018 3/32 – in. DCRP 20 – 29 80 – 150 2 – 10 IPM

Vertical Up on

remaining passes

SMAW E8018 1/8 – in. DCRP 23 – 39 90 – 150 2 – 10 IPM

Vertical Up on

remaining passes

SMAW E8018 5/32 – in. DCRP 20 - 36 120 - 200 2 – 14 IPM

Vertical Up on

remaining passes


Wall Thickness (in) Minimum Number of Beads 0.188 to 0.200 2 0.201 to 0.250 3 0.251 to 0.500 4 0.501 to 0.750 5




SMAW Branch-Groove Welding Procedure FW-7 (PG 3 of 3) K. Preheat




L. Time Intervals in Weld Cycle Maximum time between completion and cleaning of root and start of the hot pass is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying the hot pass.

M. Type of Line-up Clamp and Time Delay before Removal External or internal, as applicable for pipe size and joint type will be utilized. Removal of the clamp will be permissible after the root bead is 50% completed with external and 100% completed with internal clamp. Root bead and Hot pass shall be completed before lowering pipe onto skids.





SMAW Butt/Groove Welding Procedure BW-8 (PG 1 of 3) API 1104 20th Edition

SUMMARY: This weld procedure encompasses: 1. Butt welds 2. All pipe diameters up to 36” inclusive, up to 42” inclusive for station header piping 3. All wall thicknesses Greater than 0.750” to 1.50” inclusive 4. API-5L X-42 and lesser grades of steel pipe or equivalent 5. Using AWS E6010 Downhill Root pass and E7018 uphill on remaining passes 6. See 3.1, Welding and Inspection Requirements for further guidance.

A. Weld Process: Shielded Metal Arc Welding (SMAW) B. Number of Welders: 1 or more for diameters 12.750-inch and less, 2 or more for diameters

greater than 12.750 inch on the root and hot pass. C. Pipe and Fitting Material



• Other materials with chemical and mechanical properties which comply with the above. D. Pipe Diameter: Up to 36 - inches O.D. inclusive, to 42” for station header piping. E. Pipe Wall Thickness: Greater than 0.750 - inch to 1.50 - inch inclusive. F. Joint Design

G. Filler Metal

AWS Classification E6010 Root /E7018 all remaining passes

Electrode Diameter 3/32 – inch to 5/32 – inch Filler Metal Group 1 & 3 AWS Specification A5.1 & A5.5




SMAW Butt/Groove Welding Procedure BW-8 (PG 2 of 3) H. Number of Beads



Range Current Range

Travel Speed Range

Travel Direction

SMAW E6010 3/32 – in. DCRP 20 – 26 65 – 130 3 – 16

IPM Vertical Down

Root only

SMAW E6010 1/8 – in. DCRP 20 – 36 65 – 140 3 – 16

IPM Vertical Down

Root Only

SMAW E6010 5/32 – in. DCRP 20 – 36 90 – 185 3 – 16

IPM Vertical Down

Root only

SMAW E7018 3/32 – in. DCRP 20 – 29 80 – 150 2 – 10

IPM

Vertical Up on remaining

passes

SMAW E7018 1/8 – in. DCRP 23 – 39 90 – 150 2 – 10

IPM


passes

SMAW E7018 5/32 – in. DCRP 20 - 36 120 - 200 2 – 10

IPM


passes

J. Welding Position: Fixed position K. Preheat:


Up to API-5L X-42 Inclusive or Equivalent All 200 – 300 oF



0.750 - in. and Greater 6




SMAW Butt/Groove Welding Procedure BW-8 (PG 3 of 3) L. Time Intervals in Weld Cycle

Maximum time between completion and cleaning of root and start of the hot pass is 5 minutes with both passes being completed the same day they were started. Approximately 50% of the wall thickness must be welded the same day the weld was started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the 72-hour time interval is exceeded the weld must be inspected and preheated before applying the hot pass.

M. Type of Line-up Clamp and Time Delay before Removal External or internal, as applicable for pipe size and joint type will be utilized. Removal of the clamp will be permissible after the root bead is 50% completed with external and 100% completed with internal clamp. Root bead and hot pass shall be completed before lowering pipe onto skids.





SMAW Butt/Groove Welding Procedure BW-9 (PG 1 of 3) API 1104, 20th Edition

SUMMARY: This weld procedure encompasses: 1. Butt welds 2. All pipe diameters up to 36” inclusive, up to 42” inclusive for station header piping 3. All wall thicknesses Greater than 0.750” to 1.50” inclusive 4. Greater than API-5L X-42 but less than or equal to API-5L X-60 or equivalent 5. Using AWS E6010 Downhill Root pass and E7018 uphill on remaining passes 6. See 3.1, Welding and Inspection Requirements for further guidance.


greater than 12.750 inch on the root and hot pass. C. Pipe and Fitting Material


• ASTM material with similar chemical and mechanical properties, or

• Other materials with chemical and mechanical properties which comply with the above. D. Pipe Diameter: Up to 36 - inches O.D. inclusive, to 42” for station header piping. E. Pipe Wall Thickness: Greater than 0.750 - inch to 1.50 - inch inclusive. F. Joint Design

G. Filler Metal

AWS Classification E6010 Root /E7018 all remaining passes

Electrode Diameter 3/32 – inch to 5/32 – inch Filler Metal Group 1 & 3 AWS Specification A5.1 & A5.5




SMAW Butt/Groove Welding Procedure BW-9 (PG 2 of 3) H. Number of Beads



Range Current Range

Travel Speed Range

Travel Direction

SMAW E6010 3/32 – in. DCRP 20 – 26 65 – 130 3 – 16 IPM Vertical Down

Root only


Root Only


Root only

SMAW E7018 3/32 – in. DCRP 20 – 29 80 – 150 2 – 10 IPM


passes

SMAW E7018 1/8 – in. DCRP 23 – 39 90 – 150 2 – 10 IPM


passes

SMAW E7018 5/32 – in. DCRP 20 - 36 120 - 200 2 – 10 IPM


passes


Wall Thickness Minimum Number of Beads 0.750 - in. and

Greater 6




SMAW Butt/Groove Welding Procedure BW-9 (PG 3 of 3) K. Preheat:

Material Ambient Temperature Preheat Temperature Greater than API-5L X-42 but less than or equal to API-5L X-60 or equivalent All 200 – 300 oF


. L. Time Intervals in Weld Cycle

Maximum time between completion and cleaning of root and start of the hot pass is 5 minutes with both passes being completed the same day they were started. Approximately 50% of the wall thickness must be welded the same day the weld was started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the 72-hour time interval is exceeded the weld must be inspected and preheated before applying the hot pass.

M. Type of Line-up Clamp and Time Delay before Removal External or internal, as applicable for pipe size and joint type will be utilized. Removal of the clamp will be permissible after the root bead is 50% completed with external and 100% completed with internal clamp. Root bead and hot pass shall be completed before lowering pipe onto skids.





SMAW Butt Welding Procedure BW-10 (PG 1 of 4) API 1104, 20th edition NOTE: This procedure is an alternate to procedure BW-6A and will be implemented at the discretion of the EQT Weld Coordinator.

SUMMARY: This weld procedure encompasses: 1. Butt welds 2. All pipe diameters up to 42” inclusive, up to 50” inclusive for station header piping 3. All wall thicknesses from 0.188” to 1.250” inclusive 4. API-5LX-70 or equivalent 5. Using AWS E6010 5P+ or E8010-P1 Downhill Root pass, AWS E8010–P1 Downhill Hot pass,

Lincoln LH-D E9045-P2 H4R Downhill Fill to Cap. 6. See 3.1, Welding and Inspection Requirements for further guidance.

A. Weld Process: Manual Shielded Metal Arc Welding (SMAW)


B. Number of welders: 1 or more for diameters 12.750-inch and less, 2 or more for diameters greater than 12.750 inch on the root and hot pass.



• Other materials with chemical and mechanical properties which comply with the above. D. Pipe Diameter: Up to 42 – inches O.D. inclusive, to 50” for station header piping. E. Pipe Wall Thickness: 0.188 - inch to 1.250 - inch inclusive. F. Joint Design




SMAW Butt Welding Procedure BW-10 (PG 2 of 4) G. Filler Metal

AWS Classification E6010 5P+ or E8010 P1 Root pass, E8010 P1 Hot

pass, Lincoln LH-D E9045-P2 H4R Downhill Fill to Cap.

Electrode Diameter 3/32 – inch to 5/32 – inch Filler Metal Group 1, 2 & 3

AWS Specification A5.1 & A5.5

Note

LH-D type electrodes shall not be restruck once ignited. Once the arc has been initiated the electrode shall be discarded after the arc has been extinguished. Avoid multiple attempts to start an electrode, discard if the electrode will not start. Discard any LH-D electrode with a damaged tip or damaged coating.

H. Number of Beads


Minimum Cap Passes

0.188 - in. to 0.200 - in. 2 1 0.201 - in. to 0.250 - in. 3 1 0.251 - in. to 0.344 - in. 4 1 0.345 - in. to 0.499 - in. 4 1 0.500 - in. and Greater 5 2

Note: The passes maybe deposited as stringer beads or a weave. Stripper passes may need to be deposited on the sides of the pipe (i.e. from 2 to 4 o’clock) to even out the weld deposit. Stripper passes do not count towards the minimum number of passes. The total number of passes depends on the material thickness. LH-D electrodes are limited to a weave width of 2X the core wire diameter.






Range Current Range

Travel Speed Range

Travel Direction

SMAW E6010 3/32 – in. DCRP 20 – 26 65 – 130 2 – 14

IPM

Vertical Down

Root only

SMAW E6010 1/8 – in. DCRP 20 – 36 65 – 140 3 – 14

IPM

Vertical Down

Root Only

SMAW E8010 3/32 – in. DCRP 20 – 26 65 – 130 2 – 14

IPM Vertical Down

SMAW E8010 1/8 – in. DCRP 20 – 36 65 – 140 3 – 14

IPM Vertical Down

SMAW E8010 5/32 – in. DCRP 20 – 36 85 – 185 7 – 14

IPM Vertical Down

SMAW E9045-

H4R 1/8 – in.

DCRP 18 – 25 150 – 170

6 – 10 IPM

Vertical Down on remaining

passes

SMAW E9045-

H4R 5/32 – in.

DCRP 18 - 25 200 - 260

5 – 14 IPM


passes

J. Welding Position: Fixed position K. Preheat


Preheat Temperature

API-5L X-70 or Equivalent Above 50°F None At or below 50°F 200°F - 300°F

Note: Preheat shall be used to remove traces of moisture from the pipe prior to welding regardless of ambient temperature. Preheat can be accomplished by propane torch, induction or resistance heating or any other method approved by Company. Preheat temperature can be measured by using either a temperature indicating crayon (“temple stick”) or a pyrometer. Interpass temperature shall be Min. 100°F - 500°F Max. and incomplete welds allowed to cool below 100°F must be preheated before welding resumes.




L. Time Intervals in Weld Cycle Maximum time between completion and cleaning of root and start of the hot pass is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should be attempted to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying the hot pass.

M. Type of Line-up Clamp and Time Delay before Removal External or internal, as applicable for pipe size and joint type will be utilized. Removal of the clamp will be permissible after the root bead is 50% completed with external and 100% completed with internal clamp. Root bead and Hot pass shall be completed before lowering pipe onto skids. If cracking is an issue the company may also require completion of a fill pass before lowering to a skid during the welding process.

N. Cleaning Cleaning shall be accomplished with use of a manual and/or power tool before each bead. Remove all rust, dirt, and other foreign matter before starting the weld; remove the slag from the bead surface before starting the next bead; and clean the finished weld. The Hot pass shall be thoroughly cleaned at the edges of the bevel by grinding before switching to the LH-D electrodes.




SMAW Branch-Groove Welding Procedure FW-10 (PG 1 of 3) API 1104, 20th edition NOTE: This procedure is an alternate to procedure FW-6A and will be implemented at the discretion of the Weld Coordinator.

SUMMARY: This weld procedure encompasses: 1. Branch-groove welds 2. All pipe diameters up to 42” inclusive, up to 50” inclusive for station header piping 3. All wall thicknesses from 0.188” to 1.250” inclusive 4. API-5LX-70 or equivalent 5. Using AWS E6010 5P+ or E8010-P1 Downhill Root pass, AWS E8010–P1 Downhill Hot

pass, Lincoln LH-D E9045-P2 H4R Downhill Fill to Cap. 6. See 3.1, Welding and Inspection Requirements for further guidance.

A. Weld Process: Manual Shielded Metal Arc Welding (SMAW)


B. Number of Welders: 1 or more for diameters 12.750-inch and less, 2 or more for diameters greater than 12.750 inch on the root and hot pass. Note: This procedure is a SMAW procedure such that gas type, gas flow rate, flux type and flame characteristic variables do not apply.



• Other materials with chemical and mechanical properties which comply with the above. D. Pipe Diameter: Up to 42 – inches O.D. inclusive, to 50” for station header piping. E. Pipe Wall Thickness: 0.188 - inch to 1.250 - inch inclusive. F. Joint Design:

G. Filler Metal

AWS Classification E6010 5P+ or E8010 P1Root pass, E8010 P1 Hot pass, Lincoln LH-D E9045-P2 H4R Downhill Fill to Cap.

Electrode Diameter 3/32 – inch to 5/32 – inch Filler Metal Group 1, 2 & 3 AWS Specification A5.1 & A5.5





Minimum Cap Passes

0.188 - in. to 0.200 - in. 2 1 0.201 - in. to 0.250 - in. 3 1 0.251 - in. to 0.344 - in. 4 1 0.345 - in. to 0.499 - in. 4 1 0.500 - in. and Greater 5 2

Note: The passes maybe deposited as stringer beads or a weave. Stripper passes may need to be deposited to even out the weld deposit. Stripper passes do not count towards the minimum number of passes. The total number of passes depends on the material thickness. LH-D electrodes are limited to a weave width of 2X the core wire diameter.



Range Current Range

Travel Speed Range

Travel Direction

SMAW E6010 3/32 – in. DCRP 20 – 26 65 – 130 2 – 14

IPM

Vertical Down

Root only

SMAW E6010 1/8 – in. DCRP 20 – 26 65 – 130 2 – 14

IPM

Vertical Down

Root Only

SMAW E8010 3/32 – in. DCRP 20 – 26 65 – 130 2 – 14

IPM Vertical Down

SMAW E8010 1/8 – in. DCRP 20 – 26 65 – 130 2 – 14

IPM Vertical Down

SMAW E8010 5/32 – in. DCRP 20 – 36 85 – 185 2 – 10

IPM Vertical Down

SMAW E9045-

H4R 1/8 – in.

DCRP 18 – 25 150 – 170

6 – 10 IPM


passes

SMAW E9045-

H4R 5/32 – in.

DCRP 18 - 25 200- 260 5 – 14 IPM


passes




SMAW Branch-Groove Welding Procedure FW-10 (PG 3of 3) K. Preheat


Preheat Temperature

API-5L X-70 or Equivalent Above 50°F None

At or below 50°F 200°F - 300°F Note: Preheat shall be used to remove traces of moisture from the pipe prior to welding regardless of ambient temperature. Preheat can be accomplished by propane torch, induction or resistance heating or any other method approved by Company. Preheat temperature can be measured by using either a temperature indicating crayon (“temple stick”) or a pyrometer. Interpass temperature shall be Min. 100°F - 500°F Max. and incomplete welds allowed to cool below 100°F must be preheated before welding resumes.

L. Time Intervals in Weld Cycle Maximum time between completion and cleaning of root and start of the hot pass is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. Preheating is required if the time between the root and hot pass interval above exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying the hot pass.

M. Type of Line-up Clamp and Time Delay before Removal External or internal, as applicable for pipe size and joint type will be utilized. Removal of the clamp will be permissible after the root bead is 50% completed with external and 100% completed with internal clamp. Root bead and Hot pass shall be completed before lowering pipe onto skids.

N. N. Cleaning Cleaning shall be accomplished with use of a manual and/or power tool before each bead. Remove all rust, dirt, and other foreign matter before starting the weld; remove the slag from the bead surface before starting the next bead; and clean the finished weld. The Hot pass shall be thoroughly cleaned at the edges of the bevel by grinding before switching to the LH-D electrodes.

O. O. Post-Weld Heat Treatment No post-weld heat treatment required.



SMAW In-Service Welding Procedure HT-1 (PG 1 of 3) API 1104, 19th edition; reviewed and meets the requirements of the API 1104, 20th edition

SUMMARY: This in-service weld procedure encompasses: 1. In-service welds: sleeve fillets and groove welds 2. All pipe diameters up to 36” inclusive, up to 42” inclusive for station header piping 3. All wall thicknesses from 0.188” to 0.750” inclusive 4. API-5LX-42 or equivalent 5. Maximum flow rate of design at a maximum pressure of design 6. See 3.1, Welding and Inspection Requirements for further guidance.




C. SMYS of the Pipe and Fitting Material



• Other materials with chemical and mechanical properties which comply with either bullet above.

D. Pipe Diameter: Up to 36 - inches O.D. inclusive, to 42” for station header piping. E. Pipe Wall Thickness: 0.188 - inch to 0.750 - inch inclusive.

Note: Burn through risk shall be evaluated for all wall thickness less than 0.25 - inch and require Engineering Materials approval.

F. Joint Design and Bead Sequence

Note 1: No backing strip is required and is preferred to be ASTM A-36 material or equivalent. Note 2: The total number of passes depends on the material thickness.



SMAW In-Service Fillet Welding Procedure HT-1 (PG 2 of 3) G. Pipeline Operating Conditions

Maximum flow rate of design at maximum pressure of design. Note: The procedure was qualified under 0.5 GPM flowing water.

H. Filler Metal

AWS Classification E7018 Electrode Diameter 3/32 – inch to 5/32 – inch Filler Metal Group 3 AWS Specification A5.1



Range Current Range

Travel Speed Range

Travel Direction

SMAW 3/32 – inch DCRP 20 – 29 80 – 150 2 – 10 IPM Vertical Up


SMAW 5/32 -- inch DCRP 20 -- 32 120 -- 200 2 – 10 IPM Vertical Up


Preheat is preferred for all in-service welds to reduce the risk of hydrogen cracking but it is sometimes impractical due to the cooling conditions of the pipeline. If applicable preheat should be applied as described.


API-5L X-42 or Equivalent Below 32 oF 200 – 300 oF 32 oF and Above None


L. Time Intervals in Weld Cycle Maximum time between completion and cleaning of root and start of the hot pass for either the groove weld or the fillet weld is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. If applicable, preheating is required if the time between the root and hot pass interval above, exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying hot pass.



SMAW In-Service Fillet Welding Procedure HT-1 (PG 3 of 3) M. Type of Line-up Clamp and Time Delay before Removal

Line up clamp will not be used during applications of this welding procedure. N. Cleaning

Cleaning shall be accomplished with use of a manual and/or power tool before each bead. Remove all rust, dirt, and other foreign matter before starting the weld; remove the slag from the bead surface before starting the next bead; and clean the finished weld.




SMAW In-Service Welding Procedure HT-2 (PG 1 of 3) API 1104, 19th edition; reviewed and meets the requirements of the API 1104, 20th edition

SUMMARY: This in-service weld procedure encompasses: 1. In-service welds: sleeve fillets and groove welds 2. All pipe diameters up to 36” inclusive, up to 42” inclusive for station header piping 3. All wall thicknesses from 0.188” to 0.750” inclusive 4. Greater than API-5LX-42 but less than or equal to API-5LX-60 or equivalent 5. Maximum flow rate of design at a maximum pressure of design. 6. See 3.1, Welding and Inspection Requirements for further guidance






• Other materials with chemical and mechanical properties which comply with the bullet above. D. Pipe Diameter: Up to 36 - inches O.D. inclusive, to 42” for station header piping. E. Pipe Wall Thickness: 0.188 - inch to 0.750 - inch inclusive.

Note: Pipe Wall Thickness: Burn through risk shall be evaluated for all wall thickness less than 0.25 - inch and require Engineering Materials approval.

F. Joint Design and Bead Sequence:

Note1: No backing bar is required. But, is preferred to be ASTM A-36 material or equivalent. Note 2: The total number of passes depends on the material thickness.


Weld Procedure Qual_Req.docx 5 Revision / Save Date 12/15/2016


Maximum flow rate of design at maximum pressure of design. Note: The procedure was qualified under 0.5 GPM flowing water.

H. Filler Metal




Range Current Range

Travel Speed Range

Travel Direction





Preheat is preferred for all in-service welds to reduce the risk of hydrogen cracking but it is sometimes unpractical due to the cooling conditions of the pipeline. If applicable preheat should be applied as described.


Above API-5L X-42, less than or equal to X-60 or Equivalent

Below 50 oF 200 – 300 oF

50 oF and Above None




SMAW In-Service Fillet Welding Procedure HT-2 (PG 3 of 3) L. Time Intervals in Weld Cycle

Maximum time between completion and cleaning of root and start of the hot pass for either the groove weld or the fillet weld is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. If applicable, preheating is required if the time between the root and hot pass Interval above exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying hot pass.

M. Type of Line-up Clamp and Time Delay before Removal Line up clamp will not be used during applications of this welding procedure.





SMAW In-Service Welding Procedure HT-3 (PG 1 of 3) API 1104, 20th edition Annex B






• Other materials with chemical and mechanical properties which comply with the above. D. Pipe Diameter: Up to 36 - inches O.D. inclusive to 42” for station header piping. E. Pipe Wall Thickness: 0.188 - inch to 0.750 - inch inclusive.



Note 1: Backing bar is required and is preferred to be ASTM A-36 material or equivalent.

Note 2: The total number of passes depends on the material thickness.




Maximum flow rate of design at maximum pressure of design. Note: The procedure was qualified under flowing water.

H. Filler Metal




Range Current Range

Travel Speed Range

Travel Direction





Preheat is required for all in-service welds on materials of yield > 70,000 PSI to reduce the risk of hydrogen cracking but it is sometimes impractical due to the cooling conditions of the pipeline. Note: see Additional requirements for X70/Y70 grade material


API-5L X-70 or Equivalent Preheat required

regardless of ambient temperature

200 – 300 oF

L. Preheat can be accomplished by propane torch, induction or resistance heating or any other

method approved by Company. Preheat temperature can be measured by using either a temperature indicating crayon (“temple stick”) or a pyrometer.Time Intervals in Weld Cycle Maximum time between completion and cleaning of root and start of the hot pass for either the groove weld or the fillet weld is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. If applicable, preheating is required if the time between the root and hot pass interval above, exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying hot pass.




SMAW In-Service Fillet Welding Procedure HT-3 (PG 3 of 3) N. Cleaning

Cleaning shall be accomplished with use of a manual and/or power tool before each bead. Remove all rust, dirt, and other foreign matter before starting the weld; remove the slag from the bead surface before starting the next bead; and clean the finished weld

O. No Post-Weld Heat Treatment required.



SMAW In-Service Welding Procedure HT-4 (PG 1 of 3) API 1104, 20th edition Annex B

SUMMARY: This in-service weld procedure encompasses: 1. In-service welds: sleeve fillets and groove welds 2. All pipe diameters up to 36” inclusive, up to 42” inclusive for station header piping 3. All wall thicknesses greater than 0.750” to 1.50” inclusive 4. API-5LX-42 or less equivalent 5. Maximum flow rate of design at a maximum pressure of design 6. See 3.1, Welding and Inspection Requirements for further guidance.


greater than 12.750 inch on the root and hot pass. C. SMYS of the Pipe and Fitting Material



• Other materials with chemical and mechanical properties which comply with the above. D. Pipe Diameter: Up to 36 - inches O.D. inclusive to 42” for station header piping. E. Pipe Wall Thickness: Greater than 0.750 - inch to 1.50 - inch inclusive. F. Joint Design and Bead Sequence

G. Pipeline Operating Conditions: Maximum flow rate of design at maximum pressure of design.

Note 1: Backing bar is required and is preferred to be ASTM A-36 material or equivalent. Note 2: The total number of passes depends on the material thickness.



SMAW In-Service Fillet Welding Procedure HT-4 (PG 2 of 3) H. Filler Metal




Range Current Range

Travel Speed Range

Travel Direction





Preheat is required for all Longitudinal welds on material thickness greater than .750 – inch. This will help reduce the risk of hydrogen cracking but it is sometimes impractical due to the cooling conditions of the pipeline.


API-5L X-42 or Equivalent Preheat required

regardless of ambient temperature

200 – 300 oF

L. Preheat can be accomplished by propane torch, induction or resistance heating or any other

method approved by Company. Preheat temperature can be measured by using either a temperature indicating crayon (“temple stick”) or a pyrometer.Time Intervals in Weld Cycle Maximum time between completion and cleaning of root and start of the hot pass for either the groove weld or the fillet weld is 5 minutes with both passes being completed the same day they were started. Each pass must be completed in its entirety (on both sides of pipe) before starting subsequent passes. The entire weld should attempt to be completed within the same day with no more than 72 hours after they were started. If applicable, preheating is required if the time between the root and hot pass interval above, exceeds 5 minutes or any time when the weld region drops below the specified preheat temperature. If the above time interval is exceeded the weld must be inspected and preheated before applying hot pass.




SMAW In-Service Welding Procedure HT-5 (PG 1 of 3) API 1104, 20th Edition Annex B

SUMMARY: This in-service weld procedure encompasses: 1. In-service welds: sleeve fillets and groove welds 2. All pipe diameters up to 36” inclusive, up to 42” inclusive for station header piping 3. All wall thicknesses greater than 0.750” to 1.50” inclusive 4. API pipe grade API-5L X-42 to API-5L X-60 or equivalent 5. Maximum flow rate of design at a maximum pressure of design 6. See 3.1, Welding and Inspection Requirements for further guidance.


greater than 12.750 inch on the root and hot pass. C. SMYS of the Pipe and Fitting Material

• API pipe grade API-5L X-42 to API-5L X-60 or equivalent to itself and to lower API grades,


• Other materials with chemical and mechanical properties which comply with the above. D. Pipe Diameter: Up to 36 - inches O.D. inclusive to 42” for station header piping. E. Pipe Wall Thickness: Greater than 0.750 - inch to 1.50 - inch inclusive. F. Joint Design and Bead Sequence

G. Pipeline Operating Conditions: Maximum flow rate of design at maximum pressure of design.

Note 1: Backing bar is required and is preferred to be ASTM A-36 material or equivalent. Note 2: The total number of passes depends on the material thickness.



SMAW In-Service Fillet Welding Procedure HT-5 (PG 2 of 3) H. Filler Metal




Range Current Range

Travel Speed Range

Travel Direction





Preheat is required for all Longitudinal welds on material thickness greater than .750 – inch. This will help reduce the risk of hydrogen cracking but it is sometimes impractical due to the cooling conditions of the pipeline.


API pipe grade API-5L X-42 to API-5L X-60 or equivalent

Preheat required regardless of ambient

temperature 200 – 300 oF






SMAW In-Service Welding Procedure HT-6 (PG 1 of 3) API 1104 Annex B 20th edition






• API pipe and material grades equivalent to API-5L X-65 inclusive, or

• ASTM material with equivalent chemical and mechanical properties, or

• Other materials with chemical and mechanical properties which comply with either bullet above. D. Pipe Diameter: Up to 36 - inches O.D. inclusive, to 42” for station header piping. E. Pipe Wall Thickness: 0.188 - inch to 0.750 - inch inclusive.



Note 1: backing bar is recommended and is preferred to be ASTM A-36 material or equivalent. Note 2: The total number of passes depends on the material thickness. Note 3: The Branch and Sleeve fillet weld size is dependent on carrier pipe thickness. Ref. 3.1




Maximum flow rate of design at maximum pressure of design. H. Filler Metal

AWS Classification E7018/E8018 Electrode Diameter 3/32 – inch to 5/32– inch Filler Metal Group 3 AWS Specification A5.1



Range Current Range

Travel Speed Range

Travel Direction





Preheat is preferred for all in-service welds to reduce the risk of hydrogen cracking but it is sometimes unpractical due to the cooling conditions of the pipeline. If applicable preheat should be applied as described.


API-5L X-65 or Equivalent Below 50 oF 200 – 300 oF 50 oF and Above None





SMAW In-Service Fillet Welding Procedure HT-6 (PG 3 of 3) M. Type of Line-up Clamp and Time Delay before Removal

Line up clamp will not be used during applications of this welding procedure. N. Cleaning





Version Control

Field Name Field Contents

Author: Brian Tucker

Comments: Developed By: Pro-Tech Solutions, Inc. Spring, Texas Phone: (281)-320-2398

Checked By: Jamie Kerns

Department: Design Engineering

Editor: Jim Swatzel

Owner: Ted Charletta

Keywords: Qualified Welding Procedure, Qualified Procedure, Weld Procedure, Essential Variables

Status: Approved

Section: 03.03



Revision Record

Revision Number

Description of Revision Reviewer Initials

Owner Initials

Approval Date

Original Issue DRD 6/7/02

1.

Additions and revisions are incorporated within this standard to provide for a qualified and achievable weld procedure for the hot tap branch connections when using a Group 3 low hydrogen electrode and uphill weld direction; (i.e. Weld Procedures HT-1 and HT-2). These procedures were qualified in accordance with API 1107. Such procedures shall be utilized;

• When installing hot tap branch connections on all transmission pipelines and facilities.

• When installing hot tap branch connections on distribution mains whose maximum allowable operating pressures are greater than 60 PSIG. (Although not required, it is recommended that this procedure be performed, whenever possible, at all pressures including those equal to or less than 60 PSIG).

• When installing hot tap connections of a specific design whereas the manufacturer of the branch fitting recommends a procedure incorporating the Group 3 electrode and uphill weld direction.

3/22/04

2.

Additions are incorporated within this standard to provide for a qualified and achievable weld procedure for the welding of pipe materials equal to and less than API-5LX-42 with a wall thickness of less than 0.188 - inch wall, (i.e. 3/16 - inch).

2/1/05



Revision Record

Revision Number


Owner Initials

Approval Date

3.

Additions include the incorporation of qualified weld procedures for API-5LX-65 grade steel pipe and fittings. (These procedures were previously developed, tested, and were approved as an addendum on 7/21/06.) Other additions address;

• The acceptance of weld procedures qualified by others, and

• Additional data relative to the welding of in-service welds (i.e. hot taps) on various header wall thicknesses.

Revisions are provided for the adjustments to in-service (i.e. hot-tap) weld procedures as mandated by the elimination of API 1107 vis-à-vis the Department of Transportation’s approval of the Nineteenth edition of API 1104 which provides for in-service weld qualification procedures within Annex B. (The Nineteenth edition of API 1104 was approved by DOT within 49CFR192 on June 14, 2004) Weld procedures previously qualified per API 1107 continue to remain valid; however API 1104 Annex B provides for changes in essential variables. These procedures will be used for all in-service welds, regardless of type of facility.

7/19/07

4.

Consolidated portions of Existing Standard 4.02 into Standard 4.00 to remove redundancies and streamline the documents. In addition to the consolidation, general formatting and editing of the welding procedures were made and a comprehensive table of qualified welding procedures was added.

BMT DRD 3/1/09

5.

Added weld procedures BW-6, FW-6, BW-7, FW-7 and HT-3 for 70,000 PSI Yield strength material. Procedures BW-5 and FW-5 made obsolete by additional procedures. Procedures now allow 42” pipe for station header piping. Pre-heat is required for all material over 0.500 inch wall thickness and all material 24 inches in diameter and larger.

BMT DRD 2/15/11

6. Procedures BW-1, and FW-2 were replaced with BW-1A, and FW-2A due to the need to requalify due to material records. No actual changes to the procedure itself.

STM DRD 5-22-11

7. Procedures BW-6 and FW-6 had slight changes to the ‘Time Interval for Weld Cycle’ section for clarification. STM DRD 11/2/11

8. Procedures BW-6 and FW-6: Widened the current range for 3/16” and 5/32” XX10 electrodes by changing the lower range to 90 A (from 140 A) and 85 A (from 90 A) respectively.

BMT DRD 11/11/11



Revision Record

Revision Number


Owner Initials

Approval Date

9.

Added Weld procedures BW-8, BW-9, HT-4, and HT-5 for wall thicknesses greater than ¾ inch. Updated tables accordingly. Eliminated carbon equivalent requirements from certain procedures.

STM DRD 6/15/12

10.

Added Weld procedures BW-3C - butt weld procedure that incorporates the E6010 5P+ electrode for the root pass and E8010-G for the remaining passes, FW-3C - branch weld procedure that incorporates the E6010 5P+ electrode for the root pass and E8010-G for the remaining passes, HT-6 In-Service fillet weld procedure using a Group 3 electrode (E7018/E8018) to cover X-65 grade. Updated tables accordingly.

STM DRD 12/5/12

11. Added note to applicable weld procedures to clarify that they have all been reviewed per API 1104 20th Edition. STM TAC 9/8/15

12.

WPSs BW-6 and FW-6; increased the diameter from 36” to 42” (42” to 60” for header piping ). Added a new note 6. to the summary box on each WPS. Updated 3/16” Electrode Diameter to 6-12 IPM Travel Speed Range.

STM JFS 11/24/15

13. Changed procedure BW-6 to BW-6A & FW-6 to FW-6A per the X70 welding procedures which incorporates an increase from .750” wall thickness to 1.25” wall thickness

JFS TAC 1/4/16

14. Revised the minimum number of passes table in both BW-6A and FW-6A to decrease the minimum number of passes by one for thickness ranges: ¼ to ½” and for ½” to ¾” for each WPS.

JFS TAC 5/18/16

15

Revised the minimum number of passes table consistent with Rev. 14 plus editorial/format to BW-1A, BW-2, BW-3A, BW-3B, BW-3C, and BW-7. Editorial revision of the same table in BW-6A. Editorial changes to the Number of Beads table in FW-1, FW-2A, FW-3A, FW-3B, FW-3C, FW-6A, and FW-7.

JFS TAC 7-21-2016

16 Incorporate MT’s comments from June 2016. Many editorial and formatting changes. Add BW-10 and FW-10 X70 downhill Lo-Hyd WPSs.

JFS TAC 12/15/16

Administrator Notes: Took out 6011 Added how to and how to measure preheat note to each WPS Removed superseded WPSs Needs a Glossary per the standard. JS 9-20

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