Hello Dear Members,
-- I have learnt about combining various PQR today in a basics of welding class. I was refering to ASME Section IX to check my understanding, I have a bit of confusion and your help would be appreciated.
(all the scenarios are imaginary as I just want to understand the concept)
1. PQR1 - 15mm welded completely with GTAW
2. PQR2 - 20mm welded completed with SMAW
According to the table QW-451.1
PQR 1 will be qualified for - 5mm to 30mm GTAW &
PQR 2 will be qualified for - 5mm to 40mm SMAW
So can I have qualified PQR of base metal thickness of 70 mm (30mm GTAW + 40mm SMAW)? If not, then what is the maximum basemetal thickness I can weld combining these two PQRs?
Thanks,
Suhel.
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