Re: [MW:34227] SS GTAW Welding without Back purging.

 Hi, 

Check  with kobelco  they have some TG-X series filler wire without purging that may be used for Rootpass.

Thanks and Regards, 

On Mon, May 22, 2023, 6:10 AM Anand Elankumaran <email2uranand@gmail.com> wrote:

Dear experts,

Could you please check and advise the below query.

• Whether the back purging is a quality requirement or the ASME code is insisting on back purging on SS material while doing the GTAW process.
• Whether we can qualify SS -GTAW PQR without back purging or the ASME code does not allow doing PQR for austenitic steels without a back purge?
• Kindly advise how to do it without purging in SS GTAW Welding . Planning for PQR as well 

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Thanks and Regards,

E. Anand,

Lead QA-QC,

Sohar,

Oman.

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