Welder qualification with process

[Sangram]

Dear experts
Please give me your valuable feedback with code reference.
A) One welder is qualified with dia 1” & above with GTAW(11mm)
B) Same welder also qualified with 2 7/8 & above with GTAW + SMAW (7.5 mm Gtaw + max to be welded smaw )
My question:
Can this welder welded any 2” joint which thickness is more than 11mm by using GTAW+SMAW process ??

Regards
Sangram

Sent from my iPhone

[Karthik]

Hi,

Yes. He can. 

change in weld metal deposit more than he qualified only is an essential variable. Base metal thickness is not an essential variable for welder qualifications.

(In your case for GTAW, maximum weld metal deposit thickness is restricted to the welder qualified for maximum thickness in 1" pipe)

Thanks& Regards,

 

(Karthik)

Karthikeyan.S

QA/QC Manager

Agon Pacific Co.,Ltd.

M: +66-655-174-397, +66-892-512-282

E-mail : karthi...@yahoo.com

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[Kishor Swaminathan]

Dear 

Sangram' via Materials & Welding

yes we can , how much the actual thickness 

Regards,

KISHOR SWAMINATHAN

WELDING INSPECTOR 

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[Sangram]

Dear Kartik sir,

Our client is opposing that; the welder is not qualified for SMAW in 2” NPS.

Regards 

Sangram 

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[Sangram]

 Mr. Swaminathan

Actual joint size 2inch & 19mm  thickness 

Regards 

Sangram 

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[Sangram]

Mr.swaminathan sir,

Actually it’s a latrolet branch connection.

Which thickness is 19mm

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On 06-Aug-2019, at 7:25 AM, Kishor Swaminathan <kish...@gmail.com> wrote:

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[Karthik]

Hi,

Please find below the extraction of diameter limits as per QW 452.3. If you qualified with the test coupon of OD 27/8"(73mm) then you can use them for both GTAW and SMAW. But if your test specimen is 6"OD for WQT of GTAW+SMAW (its qualified for minimum 27/8"(73mm and over) . If this case, you can not use SMAW for OD 2" of production welds.

Thanks& Regards,

 
(Karthik)


Karthikeyan.S

QA/QC Manager
Agon Pacific Co.,Ltd.
M: +66-655-174-397, +66-892-512-282

E-mail : karth...@yahoo.com

On Tuesday, August 6, 2019, 08:35:11 PM GMT+7, 'Sangram' via Materials & Welding <material...@googlegroups.com> wrote:





Dear Kartik sir,
Our client is opposing that; the welder is not qualified for SMAW in 2” NPS.

Regards 
Sangram 

Sent from my iPhone

On 06-Aug-2019, at 7:25 AM, 'Karthik' via Materials & Welding <material...@googlegroups.com> wrote:

> Hi,
> Yes. He can. 
> change in weld metal deposit more than he qualified only is an essential variable. Base metal thickness is not an essential variable for welder qualifications.
> (In your case for GTAW, maximum weld metal deposit thickness is restricted to the welder qualified for maximum thickness in 1" pipe)
>
> Thanks& Regards,
>
>  
> (Karthik)
>
>
> Karthikeyan.S
>
> QA/QC Manager
> Agon Pacific Co.,Ltd.
> M: +66-655-174-397, +66-892-512-282
>

> E-mail : karth...@yahoo.com

>
>
>
>
>
>  
>  
>  On Tuesday, August 6, 2019, 11:03:39 AM GMT+7, 'Sangram' via Materials & Welding <material...@googlegroups.com> wrote:
>
>
>
>
>
> Dear experts
> Please give me your valuable feedback with code reference.
> A) One welder is qualified with dia 1” & above with GTAW(11mm)
> B) Same welder also qualified with 2 7/8 & above with GTAW + SMAW (7.5 mm Gtaw + max to be welded smaw )
> My question:
> Can this welder welded any 2” joint which thickness is more than 11mm by using GTAW+SMAW process ??
>
> Regards
> Sangram
>
> Sent from my iPhone
>
> --
> https://materials-welding.blogspot.com/
> https://www.linkedin.com/groups/122787
> ---
> You received this message because you are subscribed to the Google Groups "Materials & Welding" group.

> To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/E4DEF482-CEE0-4A77-A796-AA166751B51E%40yahoo.com.
>
>
>
>
> --
> https://materials-welding.blogspot.com/
> https://www.linkedin.com/groups/122787
> ---
> You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/1475311395.1335627.1565065529216%40mail.yahoo.com.
>

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[sumit bhadakwad]

Hello Sangram ,

A) Exactly As per code your welder only qualify for Gtaw process   , then how he can weld use for SMAW process.

And In B condition he can not weld below 75 mm od size pipe.

Regards ,

Sumit Bhadakwad

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