[MW:22752] Combining PQR to make new PQR - Help in understanding the concept

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.

--
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To post to this group, send email to materials-welding@googlegroups.com.
Visit this group at http://groups.google.com/group/materials-welding.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/b42f9b0d-e6e2-40e7-851a-59e2491fb4e6%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.