Wednesday, August 1, 2018

[MW:28154] PWHT required for HF service

Dear expert,

Query:
 
Service: HF
MoC: SA 516 Gr 70
P No. - 1
Thickness - 40mm

Is PWHT specifically required for HF service?

Client has not mentioned anything about Lethal or Sour service.

Pl suggest.

Regards,

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