PWHT is not an essential parameter for welder qualification. So the test piece do not need pwht.
What do you mean by Ndt process? You want to qualify your ndt method or what?
Best regards
Dr Georgios Dilintas
Authorized Nuclear Inspector
Authorized Inspector Supervisor
HBS Regional Technical Manager
From: Santosh Patil [raj.san23@gmail.com]
Sent: 28/07/2012 09:04 ZE5B
To: materials-welding@googlegroups.com
Subject: [MW:14971] Need PWHT IN TEST pice
I have a one Question that is in welder test P91 Material with welding process gtaw for root and smaw for fillup and caping.
Preheating also given 250 degree. After cmplete the test pice can it is necessary do pwht for welder qualification and Ndt process .
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