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Re: [MW:13197] combination of PQR with multiple process

By Materials & Welding
No,
 
a change from fluxcored Tig rod to solid tig rod is an essential variable inaccordance with ASME Sec.IX QW 404.23 and hence I doubt whether it could be combined unless the fluxcored tig rod is used on an 1/2" plate/pipe to satisfy the requirements of QW 200.4.(b).
 
Thanks & Reagrds
 
J.Gerald Jayakumar
00968-93281596
From: suresh venkat <atozsuresh@gmail.com>
To: materials-welding@googlegroups.com
Sent: Monday, December 12, 2011 2:44 PM
Subject: [MW:13196] combination of PQR with multiple process

 
Dear all,
 
want to make a WPS combining following PQR's
 
Material - SS 316L
 
PQR 1 -   full GTAW  -  T - 5.5 mm thk ( FCGTAW - 2.5mm + GTAW - 3mm)
 
PQR 2 -  GTAW + SMAW   -  T - 12.7mm thk  ( GTAW - 3.7mm + SMAW - 9mm)
 
PQR 3  -  GTAW + SMAW   -  T - 31.75mm thk  ( GTAW - 3.75mm + SMAW - 30mm)
 
PQR 1  is being used to avoid backing gas for root pass.
 
Doubt is whether the WPS is qualified base metal thk range - 1.5mm to 63.5mm as per QW 200.4a
 
 
Regards
 
Suresh
 
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