WPS qualification per ASME section 9
WPS qualification per ASME section 9
(OP)
The calculation for a pressure retaining item is based on material allowable stress which is related to the yield stress.
Why do the WPS qualification as per ASME section 9 is concerned by the tensile strength and not the yield strength ?
Why do the WPS qualification as per ASME section 9 is concerned by the tensile strength and not the yield strength ?





RE: WPS qualification per ASME section 9
RE: WPS qualification per ASME section 9
Most people do not recognize how allowable stresses are assigned. The full range of tensile properties are evaluated for the subject material at temperature. A spreadsheet is then developed comparing the UTS/3.5 to yield strength and the lower of the two values is assigned as the allowable stress.
RE: WPS qualification per ASME section 9
But why do the Code don't deal directly with the yield strength ?
RE: WPS qualification per ASME section 9
RE: WPS qualification per ASME section 9