Wednesday, February 2, 2011

[MW:9692] Re: Supplementary requirement of UT Test comparison in A672

Often straight beam testing will not find a defect. For example, if the defect is vertical and thin enough, it will not reflect enough sound back to the transducer to let the tester know that it exists. In cases like this, angle beam testing is more useful

On Wed, Feb 2, 2011 at 8:54 PM, <desaid@toyoindia.com> wrote:

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           I want to know the basis; will it be possible for you to justify why UT3 is more stringent?                                                                                                                                                                                                                                                                                                                                                                              
Or where shall i look for to know the same.

ofcourse your explanation shall be highly appreciated.

Thanks & Regards,
Dhwani Desai.
Principal Engineer
TOYO - PLANNING & PIPING DEPT.
91-22-2573 7681.



Raghuram Bathula <raghurambathula@gmail.com>

02/02/2011 08:49 PM

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materials-welding@googlegroups.com
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desaid@toyoindia.com
Subject
Supplementary requirement of UT Test comparison in A672

UT1 is more liberal and UT3 is stringent, selection will be by your designer, based on application/design conditions or contract requirements
________________________________________
From:
desaid@toyoindia.com [desaid@toyoindia.com]
Sent: Wednesday, February 02, 2011 4:14 AM
To: Bathula Raghuram 
Subject: Supplementary requirement of UT Test comparison in A672

Dear Raghu san,

As my this id is removed from the group; mail won't be delivered. Can you pls. arrange to deliver the same or if possible reply.

Dear All,

In ASTM standard A672 for UT testing of plate, there are three requirements given. UT1, UT2 & UT3.
Our plate thickness is less than 2".
We have to instruct vendor to carry out UT test on plate.
Pls. help us to know which out of these is most critical & which one most liberal. Or criteria to decide which one shall be selected. i.e.  S10, S11 or S12 shall be used?

Kindly help.

Thanks & Regards,
Dhwani Desai
Planning & Piping Dept.




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