Re: [MW:27371] If a welder is qualified with SS (Stainless Steel) GTAW, He can weld CS Carbon steel GTAW?

Since he may have used backing gas for SS gtaw he will not be qualified for carbon steel as we do not use backing gas for cs material. 

Alternatively u will have to use backing gas for cs as well

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On Sat, Feb 24, 2018 at 3:33 PM, PK M

<pkmqaqc@gmail.com> wrote:

Dear Sir,

If a welder is qualified with SS (Stainless Steel) GTAW,  He can weld CS Carbon steel GTAW? Need code Referance...

Thanks.

PKM

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