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[MW:35244] SA 387 Grade 22 Cl.2 - Welding Crack

By Materials & Welding

Hai Experts,
Greetings!!

Hope you are doing well.
We found crack on Turbine Exhaust Stack butt weld joints made by 6 mm thick, SA 387 Grade 22 Cl.2 

We repaired with E91T1-B3 with FCAW welding process  with a preheat of 140 degree C , maximum Interpass temp. of 240 degree C.
But again welding crack observed while doing the MPI, request to please share your comments to solve this matter.


Thank You & Regards
Williams P Wilson
+968-94600828
QA/QC Engineer
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