Wednesday, September 27, 2023

Re: [MW:34553] Re rolling after NDT

Re-do All NDT Performed before rolling. Volumetric NDT Results should compare with before rolling. (Ex. Radiographs before and after compare it)  

Thank you, 
Regards, 
S.SENTHILKUMAR


On Wednesday, 27 September, 2023 at 07:22:42 pm IST, RAJESH KUMAR <rajeshkumarbhaskara@gmail.com> wrote:


Dear Expert,

During a site observation, a subcontractor's carbon steel shell (EH36, thickness 40 mm) was found re-rolled due to ovality after 100% of the NDT(UT&MPI) long seam welds. Many stresses come and grain boundaries are stretched after rolling such a thick joint.Any experts please advise.

Standard - DNV-OSC -401
Construction specifications - AWS D1.1
image.png


Thanks & Regards

Rajesh

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