QW-424.2
For welds joining base metals to weld metal buildup or corrosion-resistant weld metal overlay, the buildup or overlay portion of the joint may be substitutedin the test coupon by any P-Number base material that nominally matches the chemical analysis of the buildup or overlay.
With respect to the above clause, Can we approve the following condition.
PQR : P1+ inconel 625 WOL(PWHT) TO P43
Job : P1+Inconel 625 to P1+Inconel 625
Can we use this PQR to weld the Job preparing a WPS accordingly.
Can any one suggest please.
Regards
Birupakhya
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