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GTAW WPS using GTAW/SMAW PQR

karabau

Petroleum
Mar 26, 2025
1
Hello, this maybe a silly question, and sorry for my english.
I have a PQR for double process GTAW & SMAW (refer picture) with 10.97MM base metal. Can i produce WPS for GTAW process with 1.5mm-6mm base metal qualification base on my GTAW/SMAW PQR?
1000133126.jpg
 
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Karabau,
Do not confuse base metal qualified with weld deposit qualified
As per Table 451.1 your base metal qualified is 5 mm - 21.94 mm
Maximum GTAW deposit is 6 mm.

Unless I have misinterpreted that 10.97 mm is greater than 10 mm (Interpretation ?)
 
Your construction code (which you haven't specified, such as B31.3 or VIII-1) may set additional, more stringent requirements on top of ASME IX. Take those into consideration as well.
 
Wouldn't you need to test the GTAW passes without the others to qualify that?
But you sure could use the same procedure.
 

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