Dear friends,
Greetings to all,
Please advise me if you have WPS for P91 material without PWHT….
PWHT is time consuming..
Thanks and Regards,
asfaruk
As per ASME B31.3, Clause 331.1.6 (b): Any required PWHT shall be carried out in accordance with the qualified WPS. For furnace PWHT inv...
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