Re: [MW:31227] Welder qualification for CS and SS

For welder qualification, SS backing gas  is invariably classed as an essential variable. This is because being able to produce a sound weld root using backing does not demonstrate he has skill required to make a sound weld without backing.

On Tuesday, 28 July 2020, 07:41:55 EEST, José Juan Jiménez Alejandro <jjjimeneza@gmail.com> wrote:

The answer of 

Kannayeram Gnanapandithan

is correct.

El lun., 27 jul. 2020 a las 10:10, 'anand gupta' via Materials & Welding (<materials-welding@googlegroups.com>) escribió:

Dear

Please check F No is same then welder can weld cs and ss.

Regards

A p gupta

Thyssekrupp

Sent from Yahoo Mail on Android

On Sun, 26 Jul 2020 at 7:50 PM, Venkat Ramana

<venkatgps.ramana@gmail.com> wrote:

Hi Experts,

My query is once welder was qualified for CS material, can he weld for SS also.... 

Please advise

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and Pressure Equipment

SSI-TPI

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