regarding WPS usage

[guru]

Dear team,

Kindly clarify the problem which is as follows,

I have CS wps gtaw+smaw (gtaw upto 8mm thk.) 

I have to weld 8"seh.40 (8.18mm)CS pipe with full TIG as per client requirement.

Can I use the above WPS without SMAW (only GTAW upto 8 mm.thk) 

Thanks & Regards,

[saleem manhappulath]

Dear Guru 

  You can prepare new wps with the same PQR for GTAW ( Sigle process WPS)

Thanks & Best Regards
Saleem manhappulath

Mob:+966533595849
WhatsApp:+919526445936

From iPhone xs

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[Mohd Amiruddin]

What is your weld deposited thickness for GTAW? Is it can achieve 8.18mm when times 2?

[saleem manhappulath]

But the thickness should be upto 8 mm 

Thanks & Best Regards
Saleem manhappulath

Mob:+966533595849
WhatsApp:+919526445936

From iPhone xs

On Mon, 1 Sep 2025 at 1:59 PM guru <guru...@gmail.com> wrote:

[Shoaib Yousuf]

You can use GTAW Process upto 8mm only without revising the WPS.

Best Regards,

Shoaib

 

On Mon, 1 Sep 2025 at 1:59 PM guru <guru...@gmail.com> wrote:

[james gerald]

Under 2 conditions you can use WPS.

1. GTAW +SMAW PQR qualified for GTAW 4mm (2t).

2. Example Pipe A106Gr.B minimum tolerance as given below in snap shot within limits in SA-530

Thanks & Regards

J.Gerald Jayakumar

0091-8838619635

[guru]

Noted. Thanks for your valuable suggestion.

Thanks and regards

To view this discussion visit https://groups.google.com/d/msgid/materials-welding/1414273054.472637.1756729549701%40mail.yahoo.com.

[sridhar cn]

 If your WPS/PQR states GTAW is qualified up to 8 mm, then the 8.18 mm exceeds the limit. Consult with the 

Client and clarify if they will accept the existing WPS with the required adjustments. Otherwise, create a new

WPS that covers GTAW for the thickness of the pipe you are going to use. You cannot use the existing WPS 

without modifications due to the thickness exceeding the specified limit.

C Sridhar.