Re: [MW:12045] Roller marks

Dear Navaneethakumar,

 

We faced the same problem. when i was working in one of the neuclear power project for utility water piping(SA106 gr.b) ,we rejected the pipes because the depth of impression is more and visually  we can  able to detect.(after painting it will show more ripple like apperance.)

 

Better reject the pipes.

 

Regars

 

K.Venkateswaran

 

----- Original Message -----

From: sudhakar kuppuswamy

To: materials-welding@googlegroups.com

Sent: Sunday, July 31, 2011 8:33 PM

Subject: Re: [MW:12012] Roller marks

Mr Navaneethakumar,

                  Please can you  give more details like design code,service condition. design temperature and pressure.

if the  service condition are   high pressure&temperature  then these are not acceptable..!!

if it is normal  pressure  and temperature depends on service condition you  can make your  judgement and accepted..!! 

simply rejecting is not a correct solution always !!!!

with regards,

sudhakar.k

On Sun, Jul 31, 2011 at 2:20 PM, navanee kumar <dnkuit@gmail.com> wrote:

Dear Experts,

Is it acceptable roller marks on the pipe?

Please find attached photographs.

Thanks&Regards,
Navaneethakumar.D.
+971505583738

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With regards,
Sudhakar.k

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