Friday, April 29, 2011

RE: [MW:10882] acceptance standards for pittings for SA 516 GR 70 Plates

I believe the depth of the pitting should not exceed 10% of the nominal wall thickness viz the manufacturing tolerance.

 

Best Wishes

Aftab Ahmad

 


From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of sunil javed
Sent: Friday, April 29, 2011 11:10 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:10881] acceptance standards for pittings for SA 516 GR 70 Plates

 

There is a tolerance for the thickness for the recied materials in Sec VIII div 1, I think that is 20% of PO thickness. Please verify, I donlt have the code with me now to specify the paragraph.

 

I think, we can accept the plate if the remaining thickness after removing the pitting area, by gtinding and actual thickness check, is meeting the design thickness including CA, we shall not remove the CA from the acailable thickness as this is the new project material. we shall not go upto the CA (normally this will be 2 to 3 mm).

 

Javed

On Mon, Apr 25, 2011 at 3:06 PM, asad azmi <azmiasadayub@gmail.com> wrote:

Dear All,

 

Greetings.

 

what is the acceptance standard for pittings on SA 516 GR 70 Plate.

 

I mean what is the depth and diameter allowed.

 

Thanks and Regards

 

Asad Azmi

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