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Essential Variables in Welding Procedure Quals

Essential Variables in Welding Procedure Quals

Essential Variables in Welding Procedure Quals

(OP)
The company I work for are hit with high Argon costs every year for welding done in the Fabrication Shop .
We use the Argon for backing gases and on the torches the welders use. My question is we have found that if we change to nitrogeon as a purge gas for the welder it works out cheaper.If we do this and all the WPQ have argon as a backing or purge would we have to run a new WPQ for the change of backing gas.

RE: Essential Variables in Welding Procedure Quals

redandysafc,
yes
Regards,
RLS

RE: Essential Variables in Welding Procedure Quals

Thanks, I thought we might have to run a new procedure.
Andy

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