American Welding Society Forum
Refer QW-253 when CVN require, We "change" Holding Time of PWHT is Essential Variable. Refer QW 407.2 i know that maximum holding time of PWHT of WPS = 1.25xPQR.
So How about Minimum Holding time? We afollow record in PQR or follow ASME section 8,1 hours/in.
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