WPQT PWHT requirements
WPQT PWHT requirements
(OP)
In welder test, does it necessary to carry out PWHT if it is required on the WPS? Can we apply QW-301.2 where preheating and PWHT are omitted during performance testing? Our client requests to conduct PWHT after welding on welder test.





RE: WPQT PWHT requirements
QW-301.2 Qualification Tests. Each organization shall qualify each welder or welding operator for each
welding process to be used in production welding. The performance qualification test shall be welded in accordance
with qualified Welding Procedure Specifications (WPS), or Standard Welding Procedure Specifications
(SWPS) listed in Mandatory Appendix E, except that when performance qualification is done in accordance with a
WPS or SWPS that requires a preheat or postweld heat treatment, these may be omitted.
RE: WPQT PWHT requirements
RE: WPQT PWHT requirements
RE: WPQT PWHT requirements