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Hi, As per AWS D.1.1 , a PQR qualified from Any group II to an unlisted steel is also qualifies/covers WPS for Any group I to an unlisted steel? Note : Unlisted steel will be the same grade steel which was used for PQR qualification. Thanks.

Thank you Juergen & Section IX.

Hello there, If a PQR qualified between base metals P1G2 - P1G3 with in impact testing requirement as per the ASME IX. Can we develop a WPS which qualifies base metal combination of P1G1-P1G1,P1G1-P1G2, P1G1-P1G3,P1G2-P1G2, P1G3 - PG3 as well? Thx.

Thank you all and SectionIX, all clear.

Thx for the good inputs, bottom line that is what I understood, if the coupon welded, tested, and PQR has already been done as per the API1104 and not sufficient specimen left for the additional mech.test, than it's not acceptable extracting the only test parameters and results from the PQR...

Hello there, I have a PQR prepared/tested as per the API 1104 & B31.8 design code. Is it possible to write a new WPS as per ASME IX & B31.3 using the same PQR. PQR Included: 2xTensile Test as per API 1104 2xFace,2xRoot Bends as per API 1104 6 set (3) Charpy per ASTM E23-12c (HAZ & WCL) 2 set...

Thank You

Hi, Would you please recommend automated welding machine for 16'' & 32'' pipeline. Code will be API 1104. Thanks

Very good inputs from all of you. Thank You All.

Hello, We are fillet TIG welding stainless support pads to 316L 4''sch10S pipe. It is fillet weld but is back purging argon through pipe still required ? Thx.

Thank you for the reply? In which cases QW-403.6 applies?

Hello, Question is determination of wps thickness range. pipe type/size : A333GR6 6'' sch 60 (9.53mm) impact test req. :yes -40. Process: Gtaw/Smaw So what is the wps min/max thickness range qualified shall be? according ASME B31.1 Table 323.3.1 to t/2 to t+6mm ? 4.765mm - 15.53mm or according...