Re: [MW:22189] REGARDING Impact test of VESSEL PRODUCTION TEST COUPON

Dear Karthik,

Average value for energy joule is ok but considering individual, it needs min 20 J, which has not obtained. 

So Inspector or client can reject or ask them for re-test.

Regards

Shaneeb

QA/QC Engineer

On Wednesday, December 28, 2011 11:28:02 AM UTC+4, Karthik wrote:

Hi,

As per ASME Sec.VIII,Div.1-UG84, 

The minimum impact energy for one specimen shall not be less than 2⁄3 of the average energy required for three specimens. The average impact

energy value of the three specimens may be rounded to the nearest J.

 

Thanks & Regards,

(Karthik)

Karthikeyan.S

QA/QC Manager

Getabec Energy Co.,Ltd.

379,Moo6,Soi8,Nikhomphatana,

Rayong-21180,

Thailand.

Phone: 0066 38 897035-8 (Off)

Fax: 0066 38 897034

Hand Phone: 0066 892512282

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From: Harish Kannepalli <harishka...@gmail.com>
To: material...@googlegroups.com
Sent: Wednesday, December 28, 2011 12:08 AM
Subject: Re: [MW:13334] REGARDING Impact test of VESSEL PRODUCTION TEST COUPON

Dear Vivek,

                70% of required average is ok, ur values r ok to pass the PTC.

2011/12/27 Vivek Pandey <vivek....@gmail.com>

Respected All,


I want your suggestion about Impact test of vessel production test, I
have tested a stress relieved PTC Impact test on weld & HAZ AT -47
DEG. PTC has failed again I have  done  reheat treatment & Retest with
same cycle of the job. PTC has failed in one indivzual value by 1
joule.Value is like this way 28, 19, 34.


Is there any acceptance criteria as per ASME SECTION VIII DIV 1. other
wise all weld of category A B C D to be gauged & reweld.

Kindly solve my query as soon as possible



Regards
VIVEK PANDEY

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regards,

Harish.

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