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Final disposition was cut and replace. Was worth a shot but after speaking with metalurgists. There's no way of properly determining hardness and toughness inside the joint without destructive testing of 10% or more. Not worth the effort. Thanks for the feedback though.

yes. The AI and QA Manager signed off the Data Report at 150F. So the QC. QA Manager. And the Authorized National Board Inspector all missed it. Trying to find a way around cutting out 700 welds. PWHT was my only idea other than the As welded PQR. Thanks for your help. Let the cutting begin

ASME SA335 F11 (P4) material was welded using 150'F Preheat as per their WPS. However, Code of Construction being ASME B31.3 states a minimum preheat temperature of 250'F shall be applied. There are 700 socket welds completed like this. I recommended Heat Treatment for the welds and Hardness...

DekDee The WPS stated a minimum preheat of 150'F Note (6), Note 6 says: "The 150'F minimum specified preheat is the lowest temperature at which this WPS can be used to perform welding. The minimum specified temperature does not imply that the use of minimum permissible preheat is acceptable for...

ASME SA335 F11 (P4) material was welded using 150'F Preheat as per their WPS. However, Code of Construction being ASME B31.3 states a minimum preheat temperature of 250'F shall be applied. There are 700 socket welds completed like this. I recommended Heat Treatment for the welds and Hardness...