Re: Is it possible to qualify two welders on same test coupon

[waqas suleman]

On Tue, Sep 22, 2015 at 5:05 PM, waqas suleman <waqas....@gmail.com> wrote:

Dear All,

Can we use two welders for qualification of WQT using by combination welding (GTAW+SMAW) on single test coupon.

I used 16" pipe sch-30 for WQT. As per  ASME Sec IX, QW-306 my interpretation says it is possible.

Looking expert judgement from respected group members.

Regards,


Waqas Suleman
Construction Manager
Mobile # 00966 59 359 0798

[george....@gr.bureauveritas.com]

In principle it is possible.

Be careful on requirements for certain positions

Sent from my BlackBerry 10 smartphone.

From: waqas suleman Sent: Τρίτη, 22 Σεπτεμβρίου 2015 - 17:26 To: material...@googlegroups.com Reply To: material...@googlegroups.com Subject: [MW:23504] Re: Is it possible to qualify two welders on same test coupon

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[anand gupta]

Yes we can use two weldrs to qualify a pqr. A p gupta Qa/qc supervisor (aramco) CAT International Saudi Sent from Yahoo Mail on Android From:"waqas suleman" <waqas....@gmail.com> Date:Tue, 22 Sep, 2015 at 17:26

Subject:[MW:23504] Re: Is it possible to qualify two welders on same test coupon

[José Luís Ferreira]

The only inconvenience is that if one of them cause the failure of the test tube, both fail. (QW-306)

[milad rahimian]

it depends. According to qw-360 any welder should weld the thickness welded in WQT. for example if you have the thickness of 120 mm and the wqt said that the welder should weld 20mm thickness you can use this welder for welding 20 mm once.

[PRAMODH NAIR]

Yes you can. It shall be running of 6" or 150mm continuous weld.

But which is the applicable code r u qualifying the welder. As per the ASME Sec IX addenda, the welder have to weld one full complete pipe. left and right side.  whether it is 1" or 24"

Pramodh

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