RE: [MW:20353] Acceptable Values for Charpy Impact Test at -(minus) 196 degC for A312 TP304

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Yes John.
However, for those who are using ASME for Pressure equipment to be certified in accordance with 97/23/EC, besides the lateral expansion, the value of 27 Joule has to be obtained on a standard ISO specimen

best regards

Dr. Georgios Dilintas

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"John Henning" ---14/03/2014 17:05:06---For stainless steels in low temperature applications, charpy impact acceptance criteria is lateral e

From: "John Henning" <jhenning@deltak.com>
To: <materials-welding@googlegroups.com>
Date: 14/03/2014 17:05
Subject: RE: [MW:20329] Acceptable Values for Charpy Impact Test at -(minus) 196 degC for A312 TP304
Sent by: materials-welding@googlegroups.com

---

For stainless steels in low temperature applications, charpy impact acceptance criteria is lateral expansion not absorbed energy.  For example see ASME Sc. VIII UHA-51 or B31.3 paragraph 323.3.5(b).
 
John A. Henning
Welding & Materials
 
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Tri Yulianto
Sent: Friday, March 14, 2014 8:08 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:20328] Acceptable Values for Charpy Impact Test at -(minus) 196 degC for A312 TP304
 

Hi Choudhary,

Please see ASTM A 370 table 9 for charpy  value acceptance criteria for subsize specimen.

Cheers,

Tri Yulianto
BAM Clough JV - Wheatstone LNG
On Mar 14, 2014 8:00 PM, "Anurudh Choudhary" <theoilgasengineer@gmail.com> wrote:
Dear All,
 
I'm using A312 TP304 pipe for design temperature -(minus) 196 degC for BOIL OFF GAS (BOG) service.
 
we have carried out the charpy impact test at -(minus) 196 degC for the pipe. we are having average value of Joules for pipe specimens.
 
Please provide/guide me with the Acceptable value for Charpy impact values( Joules) at -(minus) 196 degC along with codes/reference for A312 TP304 Pipe.
 
Kind Regards,
 
Choudhary Anurudh
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