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ASME IX QW-200.4

ASME IX QW-200.4

(OP)
Hello everybody,

I have two PQRs both welded utilizing SMAW process. One with 7.11mm plate and the other with 25mm plate. Combining these two PQRs to support one WPS, what is the base metal thickness range and maximum deposited weld metal qualified. Impact test is not required.

RE: ASME IX QW-200.4

Were they both welded with the same essential variables? If so the qualified thickness range would be 1/16" (1.6 mm) to 50 mm. Why you would combine the 2 is questionable. Would you really want to weld material < 3/6" with the SMAW process?

RE: ASME IX QW-200.4

Yes, read QW-200.2(f)....explains exactly what you want to do.

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