Hi Shashank,
The purpose for MT on bevel is to confirm lamination free prior to welding so as to avoid separation, and or crack which should show up with RT. However RT could be dicey with extended lamina separation especially at the HAZ And planar cracks if parallel with source/focal point orientation. I suggest RT and ADD UT ZERO DEGREE HAZ FULL SCAN AND ANGLE PROBE ON WELD.
From: Vimal Mistry <vimal.mistry@suzlon.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Cc: "adkrishnakumar@yahoo.co.in" <adkrishnakumar@yahoo.co.in>
Sent: Friday, June 24, 2011 2:54 AM
Subject: RE: [MW:11450] MPI forgotten
Dear Shashank,You can convince with RT acceptance however results of RT acceptance stand that you had followed write welding procedure except oversight MPI.Regards,VimalFrom: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Shashank Vagal
Sent: Friday, June 24, 2011 12:25 PM
To: materials-welding@googlegroups.com
Cc: adkrishnakumar@yahoo.co.in
Subject: [MW:11448] MPI forgotten
By some oversight, MPI of one pipeline welds was not done on cut bevels. The PL section is now ready for hydrotest. Construction Code is API 1104 1999 Ed.
RT is acceptable. But this lapse is punchlisted. How do you resolve the issue?
Cutting and rewelding is not permitted.
Best regards,
Shashank Vagal--
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