Hi Naresh,
Please see the interpretation of ASME on requirements of gap for socket welds and the NDE following welding . The prime function of this gap is to facilitate the expansion and contraction of the thinner components in the socket weld fit-up, especially the piping.
This gap is required during the fit-up , not after welding. In your case(as mentioned below) there should not be any violation of code approved practice.
Thanks.
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
Ontario, Canada.
Email-pgoswami@sympatico.ca,
pgoswami@quickclic.net
Interpretation: 19-5- http://cstools.asme.org/csconnect/pdf/CommitteeFiles/23730.PDF
-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of ranendrac6@gmail.com
Sent: Sunday, September 23, 2012 11:25 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:15370] Re: Socket weld gap requirement
The gap is required to release the fume gases which generated during welding. No gap required after welding(I don't see any reason). You can check with 4 mm gap during fit up to meet client requirement.
Sent on my BlackBerry® from Vodafone
-----Original Message-----
From: Raghuram Bathula <raghurambathula@gmail.com>
Sender: materials-welding@googlegroups.com
Date: Sun, 23 Sep 2012 08:10:03
To: Materials & Welding<materials-welding@googlegroups.com>
Reply-To: materials-welding@googlegroups.com
Subject: [MW:15368] Re: Socket weld gap requirement
no it it not required after welding, many times gap closes to zero due to shrinkage during welding. if your client requires the gap after welding (I don't see any reason for this) probably you need fit up with more gap.
On Sep 22, 7:49 pm, Naresh Kumar <snareshkuma...@yahoo.com> wrote:
> Dear experts,
>
> As per ASME 3.1.& 31.3 socket weld gap requirement is 1/16” before
> welding. Whether it is required for after welding, if its require
> kindly provide the code details.In our project we're done RT for
> socket welds. But after welding did not find the 1/16” gap, its less
> than 0.5mm. Our client decision is to cut and reweld the all joints.
>
>
> Thanks & Regards,
> Naresh
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