[MW:14632] welding procedure qualification requirement for P No.1 Group no 1,2

Dear expert,

 

If welding procedure is qualified for the SA 516 Gr.60 to same (P No.1 Group 1 to same), then is it required to conduct another PQR for the SA 516 Gr.70 to same (P No.1 Group 2 to same), if impact requirement is applicable for both material at same temperature?

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Regards

Lalit Vadadoriya
Sr.Engineer (Inspection)
Engineers India Limited
Dahej Petrochemical Complex,

Dahej (Gujarat)

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