Dear All,
Greetings.
During inspection of the internal surface of the CS vessel before despatch, heavy scales some loose and some hard (adhered to surface) were observed on the 33mm thick dished head. The Vessel is PWHTed. Dished head is HOT FORMED.
pls refer attachment for your reference.
Contarctor is not willing to remove the scales completely. whether the scales which are adhered to surface are also need to be removed.
Pls suggest whether the vessel can be accepted with scales. what is the effect of scales on the metal surface. is it going to affect service requirement.
Thanks and Regards
Asad Azmi
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