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Re: [MW:22983] Normalized plate of A516 gr 70

Dear Dani,

For satisfaction of your client, you could do following:
1 - Metallography, But this test in this case may be risky, because of the effect of thermomechanical rolling and it is probable that you could not observe a big evidence.
2 - Impact testing, As the effect of normalizing process is to increase toughness, It could be more practical.

Regards

On Mon, Mar 16, 2015 at 5:01 PM, Nandesh Kumar <nandeshkumar@rocketmail.com> wrote:
First of all, MTC shall state that the plate is Normalized. As long as the heat number on Plate is matching with the MTC, it as acceptable. There is no such rule that the N shall be stamped on the plate, unless it is for Hydrofluoric Service (to be stamped as 'HF-N'), as required by Supplementary requirements per S54.8 of ASTM A516.

ವಂದನೆಗಳೊಂದಿಗೆ / Best regards,

Nandesh Kumar Arasappa

P.S. : Please don't print this e-mail unless you really need to.

--------------------------------------------
On Sat, 14/3/15, Dani Darwis <daniyd@centrin.net.id> wrote:

 Subject: [MW:22971] Normalized plate of A516 gr 70
 To: materials-welding@googlegroups.com
 Date: Saturday, 14 March, 2015, 5:44 PM

 #yiv8143571543
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 #yiv8143571543 Dear Expert,  Our vendor had purchased
 normalized plates from Sumitomo of steel making and Mill
 Cert clearly stated that the plates have been normalized but
 no sign or stamp "N" on plate. The problem is when the
 client reviewed and witnessed it, they don't believe that
 the plate has been normalized and the question is what test
 needs to be conducted to prove that the plate has been
 normalized?  For your info: what do you think
 if the client ask for the following test:1.       Tensile
 test and the specimen needs to be normalized first prior to
 test, acceptance criteria as per mill cert.2.       Scanning
 Electron Microscope (SEM), acceptance criteria: no residual
 stress in the plate.  Your quick response is highly
 appreciated.  RegardsDani


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M. Shokri Arfaei
ISA-ISTS - Metallurgy Lab. Manager
ASNT NDT Level III
International Welding Engineer

Tel.: +98 21 66282127
Fax: +98 21 66282779
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