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[MW:30965] Procedure Qualification With Dissimilar Base Materials

By Materials & Welding
Dear All;

Please explain me the para 403.5 of ASME IX , for P & group no qualification.

If we do the PQT with P1 G1 to P1 G1 is that qualify for P1 G1 to P1 G2 material is that so?
or is it valid when impact test is done ?
I m not able to interpreted the code para properly


Thanks In Advance.....

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