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[MW:25032] PQR Qualification

By Materials & Welding
Dear experts

Please reply with your suggestions for the below mentioned query,

We are going to conduct the pqr qualification test for base metal - SA 516 gr.70(P 1 Gr.1,2 to P1 Gr.1,2) as per ASME Sec.IX

Thickness of Base metal is 20 mm

Which type of heat treatment is required during welding
Preheat
Interpass heating
PWHT

Thanks in advance







Sent from Samsung Mobile

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