Tuesday, November 3, 2009

[MW:3578] WPS/PQR

Dear All
I have question regarding WPS/PQR matter. I have one qualified WPS/PQR (GTAW/SMAW) which the base metal spec. is SA 333 Gr. 6 and was impact tested at -50C. Can this PQR support a new WPS to weld SA 106 Gr. B without impact test(not required by code) . What will be the ranges of qualification? is it i need to remove the impact test result on old PQR and allowed by ASME IX code? Please help me. Thank in advance
Regards


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