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It is not a Code requirement to PWHT the fillet weld between P91 pad and CS support since the pad is not a pressure part.
However I would suggest that you do a PWHT to this weld, especially if you have a corrosive environment.
You could propose a monitoring plan for those welds, but it will be difficult to implement it since I suppose that this line will be insulated.
You may save a lot of trouble in the future if you do a PWHT for this fillet weld.
- best regards
Dr. Georgios Dilintas
Authorized Nuclear Inspector
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I&F REGIONAL TECHNICAL MANAGER
BUREAU VERITAS HELLAS
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(See attached file: Dilintas_George.vcf)
sumod s ---15/01/2014 18:47:25---Dear experts, PWHT is done on pipe(P91) to pad (P91) weld. Is it required to do PWHT onFrom: sumod s <sumod.sadhupuram@gmail.com>
To: materials-welding <materials-welding@googlegroups.com>
Date: 15/01/2014 18:47
Subject: [MW:19867] PWHT on P91 support (Pad +Shoe)
Sent by: materials-welding@googlegroups.com
Dear experts,
PWHT is done on pipe(P91) to pad (P91) weld. Is it required to do PWHT on pad (P91) to support shoe (CS) fillet weld. Please refer the attachment for details.
Sumod
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