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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