[MW:20190] Mutiple WPS from single PQR

Gents,

I have PQR with impact test requirements and the details are below like this.

Base material thickness 11mm with impact test requirements

Process GTAW & SMAW

base metail qualified range 11mm- 22mm

GTAW process deposited weld metal qualified range 8 mm

SMAW process deposited weld metal qualified range 14mm

Now I want to make a WPS for a job of 6mm only using GTAW process, I have found a difficulty in understanding the base metal thickness range qualified. 

Can I consider only weld metal deposited thickness range this process and make a WPS?

Regards

M. Javeed

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