tech. spec. for seamless erw efsw pipes

INDIAN OIL CORPORATION LIMITED REFINERIES DIVISION

IOCL/R/ML/PIPES/2006 - REV 0

TECHNICAL SPECIFICATION FOR SEAMLESS, ERW & EFSW PIPES

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IndianOil

TECHNICAL SPECIFICATION

FOR

SEAMLESS, ERW & EFSW PIPES




of 7

§ T

his

docu

men

t is

pro

pert

y of

Ind

ian

Oil

Cor

pora

tion

Lim

ited.

The

se a

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the

borr

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's a

gree

men

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at t

hese

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IndianOil

A. GENERAL

1.0 In addition to adhering to the special requirement given in the requisition, all

pipes shall strictly meet the entire requirements specified in the material & dimensional standards given in requisition.

2.0 Test reports shall be supplied for all mandatory tests as per the applicable material specification and the following supplementary tests as specified below.

3.0 For all austenitic stainless steel pipes intergranular corrosion test shall have to be

conducted as per following. ASTM A262 PRACTICE B with acceptance criteria of 60 mils/year (max.)

Or ASTM A262 PRACTICE E with acceptance criteria of “ NO CRACKS” as observed from 20X MAGNIFICATION & microscopic structure to be observed from 250 X magnifications.

4.0 When specifically asked for high temperature application for some grades of

austenitic stainless steel (SS309, 310, 316, 316 H etc) ASTM A262 PRACTICE C with acceptance criteria of 50 mils/year (max.) shall have to be conducted.

5.0 Pipe under NACE shall meet the requirement of NACE- MR-01-75 (1997)

All NACE material shall have Carbon equivalent less than 0.45 Carbon equivalent shall be computed as below: CE = C + Mn /6 + ( Cr +Mo+V)/5 +( Ni+Cu)/15

6.0 For SS316 material Moly % shall be 2.3 % minimum.

7.0 Chemical composition, physical properties tests, heat treatment, dimensional

checking & tolerances shall conform to specified code/standard & specification. 8.0 Steels made by acid Bessemer process shall not be acceptable. 9.0 Pipes shall be supplied in single random lengths of 4 to 8 meters or double

random length of 10-12 mtr as specified. 10.0 All pipes shall be stenciled giving material specification size & schedule /

thickness with weatherproof paint at one end of each length.

Beveled ends shall conform to ANSI B 16.25. Dimensions as per ANSI B 36.10




of 7

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pro

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y of

Ind

ian

Oil

Cor

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ited.

The

se a

re m

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on

the

borr

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's a

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IndianOil

11.0 All longitudinal welded pipes other than IS3589 should imply only automatic welding. All austenitic stainless steel pipes shall be supplied in solution annealed condition.

B. IBR

1.0 IBR pipes shall be accompanied with “Original” IBR certificate in Form III-

A duly approved & signed by IBR authority/ local authority empowered by Central Boiler Board of India. Pipes shall be painted red strips at both the ends for identification.

2.0 For Carbon steel pipes under IBR the chemical composition shall conform the

following.

Carbon (Max): 0.25 % Others (S, P, Mn): as prescribed under IBR regulation.

C. MARKING & DESPATCH 1.0 All pipes shall be marked in accordance with the applicable codes and standards

& specifications. In addition the conditions like IBR, NACE etc shall also be marked.

2.0 Pipes under IBR & NACE shall be painted in red strips & canary yellow strips

respectively longitudinally throughout the length for easy identification. 3.0 Pipe shall be dry, clean and free from moisture, dirt, and loose foreign material

of any kind. 4.0 Owner’s Representative/ Third Party Inspection (TPI) agency stamping/ IBR

stamping to be clearly encircled using red paint and covered by protective tape for easy identification.

5.0 Both ends of pipe shall be protected with the following material as follows:

Plain end: plastic cap Bevel end: wood, metal or plastic cover. Threaded end: metal or plastic threaded cap.

D. INSPECTION REQUIREMENT

1.0 INSPECTION REQUIREMENT FOR SEAMLESS/ERW PIPES

The pipes shall be manufactured strictly in accordance with the specifications (API 5L/ASTM A 106/ASTM A333/A335) as mentioned in the Inquiry/Purchase Order and shall be inspected by Owner’s Representative/ Third Party Inspection




of 7

§ T

his

docu

men

t is

pro

pert

y of

Ind

ian

Oil

Cor

pora

tion

Lim

ited.

The

se a

re m

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y lo

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on

the

borr

ower

's a

gree

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t th

at t

hese

will

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ed,

copi

ed,

loan

ed,

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d no

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t in

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(TPI) agency duly approved by the Purchaser as per following scope of inspection:

1.1 Chemical check analysis as per relevant clause of API/ASTM. 1.2 Checking and witnessing various physical and mechanical tests such as Tensile

Strength, Yield Strength, Percentage elongation, Flattening, Bending tests, impact testing as per API/ASTM.

1.3 Hydraulic testing as per API/ASTM a 530. 1.4 Visual inspection and checking of dimensions as such diameter, wall thickness,

length, straightness etc as per relevant API/ASTM for 100% pipe lengths. Pipes shall be free from any defect.

1.5 100% Eddy current testing shall be done for API 5L ERW Pipes. (Additionally

ultrasonic testing shall be done 100% for grade X 46 Pipes as per SR 17 of API 5L Specification)

1.6 Marking and coating as per specification and the same shall be identifiable by

Owner’s Representative/ Third Party Inspection (TPI) agency certificate. 1.7 The Owner’s Representative/ Third Party Inspection (TPI) agency shall certify

conformity of the pipes to relevant API / ASTM. 1.8 All the test certificates shall be furnished with the delivery of the material. 2.0 INSPECTION REQUIREMENT FOR CS EFSW PIPES OF API5LGRB/ ASTM A

672

The pipes shall be manufactured strictly in accordance with the specification mentioned in the Purchase Order and shall be inspected by Owner’s Representative/ Third Party Inspection (TPI) agency duly approved by the Purchaser as below.

2.1 Chemical check analysis as per clause 3.3 of API5L and clause 7 of A 672. 2.2 Checking and witnessing various physical and mechanical tests such as Tensile

strength test, yield strength, percentage elongation, etc as per API5L/Section 6 of Specification A 530.

2.3 Hydraulic testing as per clause 5.1,5.2 &5.3 of API5L/. Section 2 of ASTM A530. 2.4 Checking of dimensions such as diameter, wall thickness, length, straightness

etc as per relevant section of the respective codes. All Pipes shall be free from any defect.




of 7

§ T

his

docu

men

t is

pro

pert

y of

Ind

ian

Oil

Cor

pora

tion

Lim

ited.

The

se a

re m

erel

y lo

aned

on

the

borr

ower

's a

gree

men

t th

at t

hese

will

not

be

repr

oduc

ed,

copi

ed,

loan

ed,

exhi

bite

d no

r us

ed e

xcep

t in

the

lim

ited

way

and

priv

ate

use

perm

itted

by

any

writ

ten

cons

ent

give

n by

the

lend

er t

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IndianOil

2.5 Radiographic examination of the welds shall be made in accordance with and meet the requirements of ASME Boiler & Pressure Code, Section VIII, Paragraph UW51.

2.6 Marking and coating as per specification and the same shall be identifiable by

Owner’s Representative/ Third Party Inspection (TPI) agency certificate. 2.7 Third Party Inspector shall certify conforming of the pipes to API 5L/ASTM A 672

Cl 12. 2.8 All the test certificates shall be certified by the Owner’s Representative/ Third

Party Inspection (TPI) agency and the same shall be furnished along with delivery of materials. In case any deviation of procedures is adopted the same shall be approved by Owner’s Representative/ Third Party Inspection (TPI) agency shall stamp on each pipe.

2.9 One welded circumferential seam of same quality as longitudinal weld is

permitted which shall be at least 2.5 M from either end. 3.0 INSPECTION REQUIREMENT FOR SS SEAMLESS PIPES 3.1 The pipes shall be manufactured strictly in accordance with the specifications

(ASTM A 312) as mentioned in the Inquiry/Purchase Order and shall be inspected by Owner’s Representative/ Third Party Inspection (TPI) agency duly approved by the Purchaser as per following scope of inspection: Chemical check analysis as per relevant clause of ASTM.

3.2 Checking and witnessing various physical and mechanical tests such as Tensile

Strength, Yield Strength, Percentage elongation, Flattening, Bending tests as per ASTM.

3.3 Hydraulic testing as per API/ASTM A 530. 3.4 Visual inspection and checking of dimensions such as diameter, wall thickness,

length, straightness etc as per relevant ASTM for 100% pipe lengths. Pipes shall be free from any defect.

3.5 Marking and coating as per specification and the same shall be identifiable by Owner’s Representative/ Third Party Inspection (TPI) agency certificate.

3.6 The Owner’s Representative/ Third Party Inspection (TPI) agency shall certify

conformity of the pipes to relevant ASTM. 3.7 All the test certificates shall be furnished with the delivery of the material.




of 7

§ T

his

docu

men

t is

pro

pert

y of

Ind

ian

Oil

Cor

pora

tion

Lim

ited.

The

se a

re m

erel

y lo

aned

on

the

borr

ower

's a

gree

men

t th

at t

hese

will

not

be

repr

oduc

ed,

copi

ed,

loan

ed,

exhi

bite

d no

r us

ed e

xcep

t in

the

lim

ited

way

and

priv

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use

perm

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any

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IndianOil

4.0 INSPECTION REQUIREMENT FOR CS EFSW PIPES OF IS-3589: 1991

The pipes shall be manufactured strictly in accordance with the specification (IS-3589) mentioned in the Purchase Order and shall be inspected by Owner’s Representative/ Third Party Inspection (TPI) agency duly approved by the Purchaser, as per following scope of inspection:

4.1 Chemical check analysis as per clause 7. 4.2 Checking and witnessing various physical and mechanical tests such as Tensile

strength test, guided bend strength as per Clause 16. 4.3 Hydraulic testing as per Clause 13.

Wet lime layer to be applied on the weld line through out the entire length of pipes. So that operator can do the visual inspection of the weld line in proper manner after holding the Hydro test pressure for a specific time.

4.4 Visual inspection & checking of dimensions such as diameter, wall thickness,

length, straightness joints & ends for 100% pipe length as per respective clauses. Pipes shall be free from any defect.

4.5 Result of Radiographic examination (extent of radiography 2 % for longitudinal / Circumferential seams and T joints). 4.6 Marking and coating as per standard and the same shall be identifiable by

Owner’s Representative/ Third Party Inspection (TPI) agency certificate. 4.7 All the test certificates shall be certified by the Owner’s Representative/ Third

Party Inspection (TPI) agency and the same shall be furnished along with delivery of materials. In case any deviation of procedures is adopted the same shall be approved by Owner’s Representative/ Third Party Inspection (TPI) agency and under intimation to owner. Owner’s Representative/ Third Party Inspection (TPI) agency shall stamp on each pipe.+

E. SCOPE OF INSPECTION BY OWNER’S REPRESENTATIVE/ THIRD PARTY

INSPECTION (TPI) AGENCY 1.0 The scope of inspection shall be read with item description, codes stipulated in

purchase requisition, requirement of test and inspection as per this technical specification.

2.0 Test to be witnessed:

i) Testing for physical properties. ii) Visual Inspection (100%) iii) Dimensional check (100%)




of 7

§ T

his

docu

men

t is

pro

pert

y of

Ind

ian

Oil

Cor

pora

tion

Lim

ited.

The

se a

re m

erel

y lo

aned

on

the

borr

ower

's a

gree

men

t th

at t

hese

will

not

be

repr

oduc

ed,

copi

ed,

loan

ed,

exhi

bite

d no

r us

ed e

xcep

t in

the

lim

ited

way

and

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use

perm

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IndianOil

iv) Hydrostatic test (10%) 3.0 Review of documents:

i) Mill test certificate of raw materials. ii) Material identification reports. iii) Radiographs(if required). iv) Heat treatments (if required). v) Material composition as per NACE (if required). vi) Manufacturer’s test certificate. vii) Hydrotest (100%) conducted by the manufacturer

4.0 Owner’s Representative/ Third Party Inspection (TPI) agency release note shall

contain the information on test witnessed, documents reviewed, observations/ remarks, identifications, order status and date(s) of inspection.

5.0 Owner’s Representative/ Third Party Inspection (TPI) agency shall stamp each

length of pipe based on the same performed by the manufacturer and shall mention the same in the inspection release note.

tech. spec. for seamless erw efsw pipes

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