Can anybody clarify what is exact meaning of QW 407.2 PWHT
supplymentry essential variable (in context of SMAW process).
"'the procedure qulifn test subject to PWHT essentialy equalivent to
that encounter in fabrrication of priductn weld inclusind 80% of
aggregate time at temperature.PWHT total time n temp may b applied in
one heating cycle''...
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