Monday, February 16, 2009

[MW:1589] Re: Mix up of A106 Gr.B and A336 Gr.6 pipes

Dear Mr. Reddy,
You can segregate these material by XRF PMI test with ease.
A 106 Gr. B -
Cr = 0.40
Ni = 0.40

 A336 Gr. F6
Cr = 11.5 - 13.5
Ni = 0.40

See the difference in Chromium percentage. Set the XRF PMI for NI & Cr detection.

If you are interested in another NDE method for segregation. The best suitable method is " Eddy current Testing"
You can segregate these two item due to difference in their conductivity.

Best Regards,
Nilesh Pathare


On Sun, Feb 15, 2009 at 4:25 PM, tamma reddy <tsr_52@yahoo.co.in> wrote:
Dear Friends,
 
When A106 Gr.B and A336 Gr.6 pipes are physically mixed up and mill identification/ stencilling was lost during painting on external surface. Since both are CS materials, segregation by PMI (i.e by X-Ray spectrometer or by Gamma ray) is not possible.
 
Is there any other NDE method to segregate/ identify them to the respective material specification.
 
Regards,
T S Reddy



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Best Regards,

Nilesh Pathare

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