I'm saying about weld joints in the pipe line (full penetration butt weld)
And further if required to eliminate dead zone we can go up to 1.5V to 2 V
skip distance as per my view,
Than what is the difficult for UT,
Regarding ASTM A 435, that the doc itself is for plates, and straight beam,
however my query is about angle probes and to identify welding defects.
-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of veera raghava
kommisetti
Sent: Sunday, March 04, 2012 2:47 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:13819] clarification for UT
Basic reasons - Due dead zone effect it is difficult get desired results.
If you look at ASME 435, it also recommends UT for plate thk above 12.5 mm.
On 3/4/12, Lakshman Kumar.B <lakshmankumar4@gmail.com> wrote:
>
>
>
>
> Dear all,
>
>
>
> I'm having a doubt about UT.
>
>
>
> Few of my friend are saying that UT is not possible for thickness less
than
> 12mm, especially for the weld joints that too pipe line's is not possible.
> (or maybe they hope, but practically I had successfully done and doing the
> same for less thk)
>
>
>
> I'm having the following queries
>
> 1. Why it is not possible?
>
> 2. Any code / standard is it specified?
>
> 3. Than what is alternate option for lesser thickness NDT(where RT
is
> not possible/feasible due to any safety concern or accessibility)
>
>
>
> Could any one help us to resolve the queries
>
> Thanks and Regards................?
>
>
> cid:image001.jpg@01CC3048.5836D9B0
>
> Lakshman Kumar.B|Manager |Lanco Infratech Limited
>
> Plot No 1255 | Sanjeevani chowk | Mahanadi vihar | Cuttack 753004
>
> Phone : + 91 671 2445033 | Mobile : +91 9937286851 |www.lancogroup.com
>
> Go Green|The future will thank you
>
>
>
>
>
> --
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w.r.t. applicable code/standard/contract documents.
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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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