Re: [MW:7913] WQT- Number of Welders Issue

Dear Mr. K.Babu,

 

Thank you very much for sharing a useful article.In my opinion, a welder has to weld the entire circumference during WQT.Then only we can asses their skill to weld from both sides and all positions.Unfortunately I couldn't find such a clause in ASME BPV SEC IX.

 

Dear All,

 

I have reviewed ASME BPV SEC IX ,2010 edition QW 306 and QW 310 and I couldn't find that a welder has to weld the entire circumference of the test coupon.Seniors ,Can I qualify welders in half portion of pipe if they are crossing the minimum requirement of 6"(150mm) weld length.?Anybody having ASME interpretation on this subject?Please advise me.

 

 

 

Regards,

 

 

Limesh

 

 

 

On Thu, Oct 28, 2010 at 7:49 AM, Kathalingam Babu <kathalingam.qaqc@ppl.com.sg> wrote:

Hi

 

Pls find the attached , might be useful.

 

Regards

 

K.Babu

Singapore

 

----- Original Message -----

From: Karthik

To: materials-welding@googlegroups.com

Sent: Thursday, October 28, 2010 9:05 AM

Subject: Re: [MW:7880] WQT- Number of Welders Issue

Hi, Code doesnt restrict to use more welders in single test coupon if he weld the minimum length of 150mm. Thanks & regards, (karthik) Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282 --- On Wed, 10/27/10, Kathalingam Babu <kathalingam.qaqc@ppl.com.sg> wrote: From: Kathalingam Babu <kathalingam.qaqc@ppl.com.sg> Subject: Re: [MW:7873] WQT- Number of Welders Issue To: materials-welding@googlegroups.com Date: Wednesday, October 27, 2010, 6:06 PM Dear Raghuram,   My understanding as per QW 306 is, You can qualify 2 or more welders in single test coupon, but not allowed to weld each haf as stated by Limesh.   Regards   K.Babu Singapore   ----- Original Message ----- From: Bathula Raghuram (Mumbai - PIPING) To: 'materials-welding@googlegroups.com' Sent: Wednesday, October 27, 2010 6:59 PM Subject: RE: [MW:7871] WQT- Number of Welders Issue QW306: "Two or more welders or welding operators, each using the same or a different welding process, may be qualified in combination in a single test coupon". However all essential variable for performance qualification will apply individually . No change in 2010 edition in this regard.   From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Kathalingam Babu Sent: Wednesday, October 27, 2010 3:58 PM To: materials-welding@googlegroups.com Subject: Re: [MW:7869] WQT- Number of Welders Issue   Limesh   I understand that, it has not been allowed to weld by 2 welders on single pipe as pr ASME latest revision.   I don't have latest edition, but you can find recent article in Welding Journal (Aug 2010) discuss about this issue.   Regards   K.Babu Singapore   ----- Original Message ----- From: limesh M To: Materials & Welding Sent: Wednesday, October 27, 2010 6:12 PM Subject: [MW:7868] WQT- Number of Welders Issue   Dear All, Design Code – ASME B31.3 Welding Code – ASME BPV SEC IX Can I use multiple welders in a single test coupon for WQT.ie, two welders one half with two process (6 o'clock to 12 o'clock) and other half (6 o'clock to 12 o'clock) another two welder with two process(Suppose all welders are crossing the minimum 6"(150 mm) length)? Is there any clause insisting that one welder has to weld the entire pipe circumference irrespective of diameter?  Regards,  Limesh -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents. -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

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For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

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To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

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To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.