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[MW:1428] Re: ASME B31.3-2006 Ed. Fig. 328.5.2.c

By Materials & Welding
Purpose of the gap is to allow the expansion of piping and fitting during welding. If there are no gap between piping and fitting may be can cause distortion. For my opinion, RT is not suitable for fillet weld but may be your client just want to ensure whether the gap is there or not.

Regards,
SBS

On Thu, Dec 25, 2008 at 5:34 PM, Jivan Dhamane <jivanadhamane@yahoo.co.in> wrote:
Dear Friends
 
As per ASME 3.31.3 gap is given at the time of fit-up and offcurse after weding that gap will be less than 1.5 mm because of  shrinkage due to welding heat. the meaning of RT is nothing but radiography test and i think your client might have asked you to perfom Rt to check whether 1.5mm gap has been provided or not
not rejected.

Regards,
 
Jivan Dhamane


--- On Wed, 24/12/08, T. Rizal H. <aatkho@gmail.com> wrote:
From: T. Rizal H. <aatkho@gmail.com>
Subject: [MW:1419] Re: ASME B31.3-2006 Ed. Fig. 328.5.2.c
To: materials-welding@googlegroups.com
Date: Wednesday, 24 December, 2008, 11:35 PM 


1.5 mm gap is set before welding, it is to accomodate shrinkage after welding. Of course, gap will be less than 1.5 after welding, but it is not rejected.  What's the meaning after RT?, it is strange to perform RT on the fillet weld.  Regards,  Tex  2008/12/24  <nozhan@cimtas.com.tr>: > > > (Embedded image moved to file: pic14310.jpg) > After welding, less than 1.5 mm gap is the cause to reject the weld after > RT? > If yes, in accordance which criteria? > > Thanks... > > > > Nebi ÖZHAN > > e-mail:nozhan@cimtas.com.tr > > >    --  Regards,  T. Rizal Hidayat

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