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Trouble interpreting ASME Sec IX QW-200.4

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timmckee

Mechanical
Oct 19, 2005
20
Trouble interpreting ASME Sec IX QW-200.4

I want to make sure I understand this paragraph properly. I have an approved WPS for GTAW of SS piping and a WPS for SMAW of SS piping. If I wanted to produce a SS weld with GTAW root and SMAW hot pass/fill and cap I can do so using a combination of the two WPS's WITHOUT a PQR for the combined processes? All this assuming I'm within the thickness limits of QW-451.
 
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Timmckee,

Yes, you are going right way.

Nasir
Welding Engineer
DESCON ENGINEERING LIMITED
PAKISTAN
 
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