Saturday, May 28, 2011

Re: [MW:11168] pittings on surface of Shell

Dear Mr Azad,
 
            Its not so severe so you can leave it and by the waht is your corrosion allownace?
and you should have proper coating saystems to prevent further occurrences.
 
Regards
Ilangkumaran

--- On Fri, 5/27/11, asad azmi <azmiasadayub@gmail.com> wrote:

From: asad azmi <azmiasadayub@gmail.com>
Subject: [MW:11167] pittings on surface of Shell
To: materials-welding@googlegroups.com
Date: Friday, May 27, 2011, 2:14 PM

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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