Monday, March 14, 2011

RE: [MW:10335] ASME IX - Welder's qualification Thickness range

Hi Babu,

I think Martin is correct on the thickness wise.
Please see as reference ASME IX 2001 QW 301.2.
If your WPS is qualified to do unlimited thickness and the test coupon which your welder has welded in fall to "inlimited thickness" category then the welder is qualified for "max to be welded" which means unlimited.

Your main reference should be the WPS which your welder is qualified to.

regards,
Elshan Feyzullayev.


Date: Sat, 12 Mar 2011 22:17:29 +0800
Subject: Re: [MW:10295] ASME IX - Welder's qualification Thickness range
From: kbabupsg@gmail.com
To: materials-welding@googlegroups.com
CC: martin_prad@hotmail.com

Hi Martin
 
If that is the case , we can't qualify the welder for unlimited thickness as the WPS has not qualified for unlimited thickness ?

In my opinion , "Maximum to be welded" indicates the unlimited thickness.
 
Regards
 
K.Babu
 

 
2011/3/10 Martin Prad <martin_prad@hotmail.com>
Dear Sir,
 
Your interpretation is true within the limits of your applicable qualified WPS. E.G. if your applicable WPS is qualified for max thickness 20 mm and your welder has welded 16 mm thk test coupon then the "Maximum to be welded" thikness is 20 mm.
 
Please note that you can not go beyond the applicable qualified WPS.
 
regards,
Martin.
 

Date: Wed, 9 Mar 2011 17:13:49 +0000

Subject: [MW:10246] ASME IX - Welder's qualification Thickness range
From: zakaria.ghrab@gmail.com
Hi all,

  As per ASME sect IX table QW-452-1(b), for welder's qualified in test coupon thickness greater or equal than 13 mm, he's will be qualified to wed thickness " Maximum to be welded"

May my interpretation is true ??
In this case, Can i  qualify all welder's in 13 mm thickness, he will be qualified for all thick ( PWHT is not essential variable for welders) and cover all thickness range ?

Regards

--
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GHRAB Zakaria
مسؤول عن الجودة
QA/QC SENAD
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