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RE: [MW:9326] Higher value of UTS, acceptable?

By Materials & Welding

Dear JJ,

I would like to draw your attention to clause 11.1 of SA-350 which states:

"If the results of the mechanical tests do not conform to the requirements specified, the manufacturer may reheat treat the forgings represented, and shall retest to the applicable requirements."

You can seek clarification from supplier for not meeting the tensile range and how he has certified the material?

Regards,

Santosh Latake



<jignesh.rana@Linde-LE.com>
Sent by: materials-welding@googlegroups.com

01/19/2011 09:52 AM

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RE: [MW:9324] Higher value of UTS, acceptable?






Dear JJ,

I fully agree with Mr. Goswami's feedback. No point in getting drag based on one property only. However,  I suggest following steps in order to take final call.  


1.0 Carry out PMI examination in order to confirm Material as per A 350 LF2.
2.0 Carry out thorough hardness survey and conclude approximate UTS. . (Reference  A 370 ,Table 2). If your hardness results ( viz a viz tensile strength values) are in the accepted range of A 350 LF2,
      then ask for additional test coupon from forging supplier. If feasible and possible, take coupon ( may be one piece from entire lot) and carry out physical testing.
3.0 To get rid of typographic error, call for physical testing results.  ( test being carried out at forging supplier's end / external laboratory )

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.
"pgoswami" <pgoswami@quickclic.net>
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19/01/11 10:26

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RE: [MW:9320] Higher value of UTS, acceptable?







Dear JJ,
 
I would think , you need to see if all the requirements of SA 350LF2, Cl1 are being met or not. Getting dragged on to only one property may not be right. If all other properties are within the specification requirements , it may be worthwhile to seek an explanation from the mill/supplier.
 
Errors in test results could be due to many things.
 
Thanks.
 
Pradip Goswami,P.Eng.
Welding & Metallurgical Specialist & Consultant
Email-pgoswami@sympatico.ca,
pgoswami@quickclic.net
 
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Kathalingam Babu
Sent: Tuesday, January 18, 2011 11:09 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:9319] Higher value of UTS, acceptable?

Hi
 
Since spec. clearly indicates the range, it has be to within the range, otherwise not acceptable
 
Thanks & Regards,
 
K. Babu

----- Original Message -----
From: joshi jaydeep
To: materials-welding@googlegroups.com
Sent: Wednesday, January 19, 2011 11:47 AM
Subject: [MW:9317] Higher value of UTS, acceptable?

Dear all,
 
I have a material A350 LF2, CL1  with UTS of 724MPa (As mentioned in TC of Manufacturer).
 
As per ASME Sec IIA, requirement is 485 - 655 Mpa.
 
The higher value of UTS beyond the spec requirements is aceptable?
 
Thanks.
Regards,
JJ

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