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[MW:12954] Supplementary essential variable - Group number As per section IX

By Materials & Welding
Dear All,

please sheared your valuable experience for following situation,

I have PQR with P No-1 Gr No-2 to P No1 Gr 1 combination with impact testing. Can i use following combination with same PQR For impact application.

1) P No-1 Gr No-2 to P No1 Gr 2
2) P No-1 Gr No-1 to P No1 Gr 1
3) P No-1 Gr No-2 to P No1 Gr 1

If above combination's are possible please provide code reference of ASME section IX or ASME section VIII.

Regards
Vijay Katkar


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