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RE: [MW:13822] clarification for UT

By Materials & Welding

Dear Pablo J Acelajado,

 

What abt for lesser than 6.4 mm, UT didn’t work at their?

 

If so why?(with angle probe and if require we can proceed for 2V skip distance also)

 

Thanks and regards,

Lakshman

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Pablo J Acelajado
Sent: Sunday, March 04, 2012 3:14 PM
To: materials-welding@googlegroups.com
Subject: RE: [MW:13820] clarification for UT

 

March 4, 2012

 

Dear Lakshman Kumar,

 

UT is very normal for HSAW and LSAW pipe weld testing from 6.4 mm WT up to 31 mm WT. Specification for Line Pipe  ISO 3183:2007 / API 5L 44th edition make use of UT even for lesser than 12 mm WT.

 

Thanks.

 

PJA

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Lakshman Kumar.B
Sent: Sunday, March 04, 2012 11:46 AM
To: materials-welding@googlegroups.com
Subject: [MW:13818] clarification for UT

 

 

 

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................?

 

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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