Is it acceptable to qualify 2 welders (ASME IX - 6G - one by side) per cupon (down from 12" NPS) or not ?
In my opinion, technically it is not acceptable to qualify two welders in same cupon
From: alexis_viteri@hotmail.com
To: materials-welding@googlegroups.com
Subject: RE: [MW:7949] No of Welders
Date: Sat, 30 Oct 2010 12:27:53 -0500
Dear Members,
Is it acceptable to qualify 2 welders (API 1104 - 6G - one by side) per cupon (down from 8" NPS) or not ?
Is it acceptable to qualify 2 welders (ASME IX - 6G - one by side) per cupon (down from 12" NPS) or not ?
Thank and regards
Date: Sat, 30 Oct 2010 10:37:56 +0000
To: materials-welding@googlegroups.com
Subject: Re: Re: [MW:7943] No of Welders
From: drpaulosejohn@rediffmail.com
Dear Mr. Arun,
Minimum number of welders to be qualified by one WPS is - One welder. The welder who performs the PQR coupen welding is automatically becomes qualified. Please refer 2nd para of QW 301.2 of Section IX:2010 and para 621 of API 1104:2007.
Regards,
Dr. Paulose John
QA/QC Manager,
Unisis Engineering,
Saudi Arabia
.
On Sat, 30 Oct 2010 14:15:07 , No ID Specified wrote
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1. As per Section IX , diameter is specified for welder qualification QW 452.3.
2.Since hand movement will be different in two sides (clock wise and anti clock wise), each welder is preferred to qualified in separate coupons. If the thickness does not matters ( low thickness) , you can qualify the welders with 2" pipe. Also record wise ( RT films), it will be difficult.
I am no so familiar with API 1104
thanks and regards,
Arun
From: alexis_viteri@hotmail.com
To: materials-welding@googlegroups.com
Subject: RE: [MW:7949] No of Welders
Date: Sat, 30 Oct 2010 12:27:53 -0500
Dear Members,
Is it acceptable to qualify 2 welders (API 1104 - 6G - one by side) per cupon (down from 8" NPS) or not ?
Is it acceptable to qualify 2 welders (ASME IX - 6G - one by side) per cupon (down from 12" NPS) or not ?
Thank and regards
Date: Sat, 30 Oct 2010 10:37:56 +0000
To: materials-welding@googlegroups.com
Subject: Re: Re: [MW:7943] No of Welders
From: drpaulosejohn@rediffmail.com
Dear Mr. Arun,
Minimum number of welders to be qualified by one WPS is - One welder. The welder who performs the PQR coupen welding is automatically becomes qualified. Please refer 2nd para of QW 301.2 of Section IX:2010 and para 621 of API 1104:2007.
Regards,
Dr. Paulose John
QA/QC Manager,
Unisis Engineering,
Saudi Arabia
.
On Sat, 30 Oct 2010 14:15:07 , No ID Specified wrote
| To my knowledge there is no limit for number of welder qualification upon one WPS, You can qualify as many as per to the requirement for your project. Here By, P.BalajiRajan, -------Original Message------- Sir, Minimum number of welders to be qualified upon one WPS is mentioned in SEC 1X or API 1104. We are using PIPE,16"X0.375"WT STD SCH API 5L X52 Thanks in advance with regards, Arun S Das |  |
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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