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[MW:2454] Welder Qualification

By Materials & Welding

 

Can anyone please advise if  A welder who is qualified to;

Construction Code: ASME IX 2002

Acceptance Code : ASME B31.3 2006 Tier 1

Welding Process GTAW

Position 6G

Thickness: Sch 40/ 3.991mm

Diameter : 50

Material: ASTM A316

 

qualified to weld to an acceptance code of ASME B31.1 with the same welding process, position, material as that of ASME B31.3? I understand he cannot.If so what is the parameter change that disqualifies him to weld to the Higher Welding Code.What actually differs that needs to be changed on a WPS for him to be requlified to ASME B31.1, is it the acceptance code only or there are some other parameters that matters.

On a different view what would prevent a Coded welder to ASME B31.1 Stainless 316L TIG Welder in 6G Position to weld in a welding requirrement of ASME B31.3, if the welding process, material, Position are all the same.

Please advise.

Thank you

Nia

 


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