7/25/2019 Check List for P91 Per Each Welding Joint (Butt Welding Joint)...

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Check List For P91 per each Welding Joint (Butt welding joint)

I! "W# $o% & Welding Joint $o% Welder I" WP $o% 'aterial (hickness) to 'aterial (hickness)

to

No. Check Description

Insp. Result Insp. Result Insp. Result

1 Material Inspection - base material Mill Cert. 100% PMI testing W W R

2 Material Inspection - filler material 100% PMI testing W W R

3 check el!er "#alification spot check W W R

$ P#rge am Installation &'( b) taking photograph photograph W W R

* WP+ spot check &'( W W M

, it p b) taking photograph photograph W W W

/ spot check W W R

WP+ recor! temperat#re W W M

P#rging ith (rgon &'( spot check photograph W W R

10 WP+ b) taking photograph photograph W W M

11 &'( b) taking photograph photograph W W R

#W*'W*

Verification

Documentation

Site

inspection

Report

required

Tested & Checked

by SN!D"

Independently checked

by ##I

Independently $erified

by "%"

 Si'n & Checkin'

Date ( time

 Si'n & Checkin'

Date ( time

 Si'n & Checkin'

Date ( time

PMI test

reportMaterial test

certificate

Material test

certificate

Pre eating #sing eating orch 4 5P gas for

spacer tack el!ing prior to fit-#p an! el!ing

6 Pre-heating to be checke! ith empil stick oremperat#re in!icating cra)on 7210 eg C8

I+9 W:.

4 WP+

calibration of temperat#re recor!er before pre-

heating

man#fact#rer

man#al

calibration

certificate

Pre eating 7incl min. temperat#re an! heating

rate8 shall be maintaine! an! recor!e! as perWP+ prior to it-#p an! Wel!ing

temperat#re

chart

Root Pass Wel!ing 7:(W8 ith ;R0+-<

in!icate! in WP+.

6 it-#p piece or spacer ill be remo=e! one b)

one b) grin!ing once the el!ing reache! on each

spacer'piece

P#rge am Remo=e prior to +M(W el!ing or

after el!ing 4 & complete!

7/25/2019 Check List for P91 Per Each Welding Joint (Butt Welding Joint)...

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No. Check Description

Insp. Result Insp. Result Insp. Result

Verification

Documentation

Site

inspection

Report

required

Tested & Checked

by SN!D"

Independently checked

by ##I

Independently $erified

by "%"

 Si'n & Checkin'Date ( time

 Si'n & Checkin'Date ( time

 Si'n & Checkin'Date ( time

12 WP+ recor! temperat#re W W R

13 &'( spot check &'( W W R

1$ WP+ recor! temperat#re W W R

1* WP+ W W M

1, 100% PMI testing W W R

1/ W W R

1 WP+ W W M'R

1 Carr) o#t R 7after PW8 100 % R testing W W R

20 100 % har!ness testing W W W

&ote >

1. W - &otification an! 9'9;?s Witness if 9'9; can atten! in the re"#este! !ate an! time in!icate! in RI@ otherise the inspection

ill be procee!e! as per proce!#re an! +pec. b) I 4 +#b-contractor

2. M - &otification b#t the inspection ill be carrie! o#t as per proce!#re an! WP+ regar!less of the presence of 9'9;?s inspector

3. R - Recor! Re=ie@ to s#bmit the report for 9'9; re=ie.

Wel!ing 7+M(W8 ith ;01*-< in!icate! in WP+

if re"#ire!. Maintain an! recor! interpassing

temperat#re re"#irement as per WP+7note> in

case of el!ing interr#ption@ min. interpassing to

be achie=e! before res#ming el!ing 8

temperat#re

chart

Portable eating A#i=er6 (ll +M(W el!ing ro! shall be han!le! in

Portable heating A#i=er.

Post eating 7incl. heating rate an! maB.

temperat#re8 shall be maintaine! an! recor!e! as

per WP+

temperat#re

chart

Cooling !on at re"#ire! cooling rate to belo 0

!egrees C 7an! abo=e ambient temperat#re to

pre=ent con!ensation on the el!8 temperat#rerange to be maintaine! an! recor!e! as per WP+

el! to be rappe! #p if necessar) to keep el!

!r).

contin#e to recor!

temperat#re for at least

2hrs after cooling !on

temperat#rechart

PMI est shall be !one after completel) cooling

!on.

PMI test

 report

Carr) o#t man#al P'M 4 or R 7<efore

PW8

100 % man#al P'M an!

or R testing

P'M an!

or R test report

PW incl. heating rate@ temperat#re range 7/*0 -

//0 !egrees C8 an! cooling rate shall be

maintaine! an! recor!e! as per WP+

recor!

temperat#re

temperat#re

chart

R test

report

Carr) o#t har!ness est on el! metal an! both

base metals 7(D not necessar)8

ar!ness test

proce!#re ' criteria

har!ness

 test report