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Re: [MW:27521] Name plate marking - Reg

By Materials & Welding
Dear Mr. Krishnan
Please refer UW-51 (a) (4) and UW-53 (b) of ASME Sec VIII Div 1....

UW-51 RADIOGRAPHIC EXAMINATION OF
WELDED JOINTS
(a)
..
(4) As an alternative to the radiographic examination
requirements above, all welds in material 1/4 in. (6 mm)
and greater in thickness may be examined using the ultrasonic
(UT) method specified by UW-53(b).

UW-53 ULTRASONIC EXAMINATION OF WELDED
JOINTS
(a) Ultrasonic examination of welded joints whose joint
efficiency is not determined by ultrasonic examinations
may be performed and evaluated in accordance with Mandatory
Appendix 12.
(b) Ultrasonic examination of welds per UW-51(a)(4)
shall be performed and evaluated in accordance with
the requirements of Section VIII, Division 2, 7.5.5.

Hope this clarifies...

On Friday, 9 March 2018 10:38:37 UTC+5:30, venkkatesh krishnan wrote:
As per ug-116(e) it take us to UW-11, but here UT maybe substituted for final closure seam if radiography not able to take. Then how can we justify to take full UT instead of RT and mark nameplate as RT1.

Correct me if I am wrong.

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