Dear Mervin,
If this pipe is related to sour sevice, hardness test is mandatory. Unless you don't have the PQ without hardness requirement, you also need to prepare another PQ to satisfy the requirement.
Hope this help you.
2013년 12월 19일 목요일 오후 12시 35분 55초 UTC+9, mervin dio 님의 말:
dear expert,can any one help me about the hardness test of 1" 316L material as per approved procedure hardness test is required.1.my question is in production joint hardness test is needed..we use this in sour service.kid
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