Can I combine the following PQR ?,if yes then what will base metal thickness range or is it require to mention separate qualification of dissimilar thickness?
PQR 36 :
Base metal : P.No. 1 Gr 1 to P.No.1 Gr 2
Thickness : 32 mm to 5.5
Process : GTAW + SMAW
Testing : Tensile ,bend ,Impact @ minus 46
PQR 36 A : (additional PQR only impact tested )
Base metal : P.No. 1 Gr 1 to P.No.1 Gr 2
Thickness : 32 mm to 5.5
Process : GTAW + SMAW
Testing : Impact @ minus 56
PQR 29 :
Base metal : P.No. 1 Gr 1 to P.No.1 Gr 2
Thickness : 6 TO 6 mm
Process : GTAW + SMAW
Testing : Impact @ minus 46
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