Friday, May 27, 2011

[MW:11167] pittings on surface of Shell

Dear All,
 
Greetings.
 
Pittings (not more than 0.5 mm in depth) observed on the surface of a shell of a Vessel. pls find photos for your reference.
 
Shell material  is SA 36. thickness 8mm. service fluid - water
 
Code of construction is ASME SEC VIII DIV1
 
After grindings also pittings can be observed on the large surface of the shell.
 
Whether these pittings can be accepted as it is OR further grinding is required.
 
Please Suggest.
 
Thanks and Regards
 
Asad Azmi

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