[MW:4179] RE: 4176] Impact Tested PQR for Non Impact Tested WPS

pl. refer answers below 

 

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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of tong tong
Sent: Tuesday, February 02, 2010 7:54 AM
To: materials-welding@googlegroups.com
Subject: [MW:4176] Impact Tested PQR for Non Impact Tested WPS

Dear All,

Note-1:A PQR was Impact tested at -46 C, on a 12" Dia Pipe Sch 40 (Wall Thickness=10.31mm) Deposited Weld Metal: GTAW=4mm & Balance SMAW.
Note-2: The WPS Supported by Above PQR is not Impact tested Designed Welding.

Q: Can this Impact Tested PQR support a non Impact Tested WPS which is to be used for Welding of D-catagory(B31.3-300.2) Piping.(Non LTCS).  

Yes, you can 
Q: What will be the ranges of qualification of deposited metal & base metal.  

Base metal : 5-20.62mm, weld metal : GTAW 8mm max, SMAW 12.62mm max. 
Q If we want to make two WPSs from this PQR (1- for GTAW for Small Thickness Welding & 2- for GTAW/SMAW for larger thickness). What to do? 
 you can make two separate WPS with base/weld metal thickness limits as specified in Q2. 

Any code case, ASME IX interpretation or reference that we can refer to.

refer QW 451.1 

Regards