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[MW:35746] QW-424.2, clarification

By Materials & Welding

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 substituted

in 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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