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[MW:34127] USE of PQR of 10.97mm GTAW+SMAW for new WPS GTAW process only

By Materials & Welding
I have a PQR of 10.97mm Test coupon GTAW(3.5mm)+SMAW(7.47mm) in groove Joint, ASME Sec IX . 

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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