Regarding base metal thickness, the welder is not restricted as to how thick the base metal is. He is only restricted as to the thickness of deposit he can make. This is addressed in Intrepretation IX-77-19
Deposited weld thickness qualified is given in QW-452.1(b).
It is takes a little to get there, but ultimately, for welders:
· Pipe diameter limits are given in QW-452.3 for performance qualification test on pipe
· And per QW-461.9 for performance qualification test on plate
Hope this answers your question
John
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of john clough
Sent: Wednesday, August 17, 2011 5:55 AM
To: materials-welding
Subject: [MW:12249] W.Q.P. Ranges
Importance: High
Sirs
Does anyboby have referance regarding Diameter and thickness ranges for welder qualification tests for ASME Section1X.
John
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