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RE: [MW:6198] why we are not doing positive material identification in carbon steel materials

By Materials & Welding

Dear Mr. Manish,

PMI (Positive Material Identification) is method to segregate / identify the particular material from the lot at the source / storage / before welding and during service also, without destructing it.

Presently, Portable X - Ray Fluorescence or Optical Emission Spectra Analyzers are widely used for PMI. Rather they become the identity of PMI testing.
Hence, it is to be noted that,  these are one of the method for material identification without destructing it.

These machines, normally handy instruments gives the chemical composition of the material, at any point of time. You can refer various instruments manufacturers(eg. oxford, Metorex etc)  website for further details, limitation of testing and operation details.

PMI testing is normally asked by process licenser, consultant, client in order to avoid the mix of material (in other word to identify the positive material ) in lot. Therefore, it is independent of  type of material.

With Best Regards,

Jignesh R Rana
Manager - QA & QC

Linde Engineering India Pvt. Ltd.
38, Nutan Bharat Society, Alkapuri, Vadodara 390007, India
Tel.: +91 265 3056789, Fax: +91 265 2335213 , Mobil:  +91 90999 86019
jignesh.rana@linde-le.com, www.linde-india.com

This e-mail is confidential. If you are not the intended recipient, please notify us immediately. You should not disclose its contents to any other person nor use it for any purposes.


"Rohit Bafna" <rohit@tcreng.com>
Sent by: materials-welding@googlegroups.com

30-07-2010 09:52

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RE: [MW:6197] why we are not doing positive material identification         in carbon steel materials





Dear all,
 
In these cases, when you need to quantify C, S, P, Mn, and Si then you need to use PMI technique utilizing the portable optical emission spectrometer. Arcmet 8000 which we have is a good equipment to undertake such tests at site in a non destructive manner.
 
Regards,
Rohit Bafna
Director - Global Sales
 
------------------------------------------
TCR Engineering Services (India)
TCR Arabia (KSA), TCR Kuwait
TCR Consulting FZC (UAE)
TCR Africa (RSA)
TCR World Inc. (USA)
Tel: +91-983-353-0400
www.tcreng.com
Material Testing | Consulting | Inspection | NDT Services
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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Manish.Maheta@Linde-LE.com
Sent: Thursday, July 29, 2010 11:02 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:6195] why we are not doing positive material identification in carbon steel materials
 

Carbon, Silicon, Sulfur, and Phosphorous are very light elements and it is not possible to quantify such as elements by performing PMI.
 Jigneshbhai ,your concurrence is requested for subject matter.

Regards,
Manish

rao <amma0509@gmail.com>
Sent by: materials-welding@googlegroups.com

29/07/10 22:10


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[MW:6193] why we are not doing positive material identification in         carbon steel materials

 







dear sir
why we are not doing positive material identification in carbon steel
materials
please explain it

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