WELDER QUALIFICATION REQUIERMENT

[QA/QC]

Dear Experts

i have two wps's for piping cs/ltsc welding with the asme b31.3 ans sec 9  one thickness range is 3 to 20 mm and the second is 20.01to 31.22  pwht requiered .the two is GTAW+SMAW

i have a welder qualify in test coupon 6'' 14.27 mm 

my question is this welder will qualify to weld in the two wps or we should make another qualification for him seperately 

[Vishwas Keskar]

Welder qualification range is independent of thickness  range of WPS s.

What is his weld metal deposition qualification

GTAW ___mm??

SMAW __mm??

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/083762d2-dd64-482a-85e9-0e4f7aa4e14bn%40googlegroups.com.

[james gerald]

Please see snapshot of ASME Sec.IX.

Thanks & Regards

J.Gerald Jayakumar

[Adnan Ziad]

GTAW 5 mm

SMAW 9.27mm

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CADder3P0oXvwk645wv4SsUdJfwqRyPNSg7raKpXV-4sAVaK_VA%40mail.gmail.com.

[Vishwas Keskar]

So he is qualified  for  weld deposit in production Welding for 

GTAW = 10mm maximum

SMAW=18.54 mm maximum

The essential variables of WPS, WPQ shall be  checked and followed during production Welding.

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CACbfGKdM8HLVPsXdcWwXMnFrNLMvp2L7c4q-zcjUmGZvUpbieg%40mail.gmail.com.

[james gerald]

What you have mentioned is Basemetal thickness but in Welder qualification only weld metal thickness is an essential variable qualified from 0 to applicable weld metal thickness for each process, BM thickness is unlimited

Thanks & Regards

J.Gerald Jayakumar

On Thursday, 14 July, 2022 at 01:18:52 pm IST, QA/QC <adnan...@gmail.com> wrote:

[Adnan Ziad]

In our case he weld 5 mm gtaw + 9.27 mm smaw 

Can i qualify him directly on the two wps 

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/1357071013.761925.1657796938751%40mail.yahoo.com.

[james gerald]

Choose a higher thickness pipe say 20mm wherein you can weld GTAW 5mm (2t) and SMAW 15mm with minimum 3 layers so for SMAW he will be qualified for unlimited thickness and say GTAW 10mm/

Thanks & Regards

J.Gerald Jayakumar

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CACbfGKfUAWSWQBvotP2q78PrFFKk5eqBCem3vh-a2pvEbvbAqQ%40mail.gmail.com.