If a welder is qualified in CS - GTAW process, Is the same welder can weld SS - GTAW process with purging ?

[mpk mpk]

Dear Experts,

If a welder is qualified in CS - GTAW process, Is the same welder can weld SS - GTAW process with purging ?

Thank you,

MPK

[samshuddin k]

Dear MPK

Yes

SS & CS filler wire comes under F No 6
Material Qualification range: P1-to P15F P34, P41-P49 if qualifies in
any one of this,
So it covers material range.
deletion of purging is a essential variable for WQT
so welder qualifies for both if qualifies in CS
This as per the Code

But it is better to set the internal standard by firm to qualify
welders for SS separately considering the practical difficulties in
Welding

regards
Samshuddin.K
NKOM
regards
Samshuddin.K

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[jaya anil]

Yes He can weld SS -with GTAW. But make sure you have a PQR & WPS for
SS Material.

On 3/22/12, mpk mpk <ranm...@gmail.com> wrote:

[John Henning]

Yes

 

See QW-356 and QW-404.15 for filler metal  (Same F-number, F6)

And

See QW-356 and QW-408.8 for backing gas.  (Qualification w/ backing gas qualifies only with backing gas, qualifying w/o backing gas qualifies both w/ and w/o)

 

John A. Henning

Welding & Materials

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[ASIM MUNIR]

Yes he could do Mr. Henning gave you good references.

Actually addition of purging is non nonessential but deletion of purging is essential variable. 

Asim