Dear experts!
Project : Solar Power Plant
Construction Code ASME B31.1
ASME Sec IX
PWHT Requirement - SA 335 P91 or P no. 5B Group 2 material is not included in 132 Para and Table of B31.1, and also,
ASME Sec IX para QW-407 do not mention this material group.
Client Specification do not mention this requirement separately
Please advise! do we need to go for PWHT ?
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