Dear all,
Greetings.
After PWHT bulging was observed in inlet wear pad located inside surface of the Vessel. The actual shape of the pad was concave and it is directly welded to dished head of the vessel. Because of the bulging the shape has become convex.
Material for wear pad is – SA 516 GR. 70 N (HIC) -10 mm Thk, DISHED HEAD Material is - SA 516 GR70 N (HIC)- 16 mm Thk. Construction code is – ASME SEC VIII DIV1
Contractor has decided to rectify the problem by cold working (by hydraulic Jacking).
Please suggest whether this can be accepted. What will be the effect of jacking on the base material/Weld Joint.
Which NDT shall be performed.
Thanks and Regards
Asad Azmi
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
No comments:
Post a Comment