There are 2 thickness involved, Base metal (BM)Thickness and Weld metal (WM)thickness. Yes, you can prepare a separate WPS for GTAW from the PQR.
When Impact test is Applicable.
BM thickness Qualified, minimum is 10.97mm so you cannot prepare a GTAW WPS.
When Impact test is not Applicable
BM thickness Qualified, 5mm to 7.0mm (though maximum is 21.94mm)
WM thickness Qualified is maximum 7mm
Thanks & Regards
J.Gerald Jayakumar
On Wednesday, 12 April, 2023 at 08:32:52 am IST, Ajay Kaipuram <ajaykdas144@gmail.com> wrote:
I have a PQR of 10.97mm Test coupon GTAW(3.5mm)+SMAW(7.47mm) in groove Joint, ASME Sec IX .
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Can I prepare a new WPS for GTAW only for the Job with thickness 5.08mm groove joints? If Yes, What thickness range need to be mentioned in the WPS? 5mm to 7mm is Ok?
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