Re: [MW:17751] Impact test- minimum thk requirement

2/3 of 27 joules is also acceptable in some codes
Pandithan
welding consultant

On 5/22/13, Ramin Kondori <raminkondori@gmail.com> wrote:
> *Dear Victor:*
>
> In our project we have similar requirements for Duplex and Super Duplex as
> James mentioned (regardless of thickness) where it requires impact test at
> -46 degC and results should demonstrate average of minimum 27J and no
> result less than 20J).
>
> Regards
> *Ramin Kondori*
> *Sr. QA/QC Engineer
> *
> *SINOPEC*
>
> r.kondori@petroyada.com
> +98-2123592322
> +98-9132150320
>
>
> On Wed, May 22, 2013 at 3:24 PM, james gerald <gerry_tup@yahoo.com> wrote:
>
>> Impact test not required/cannot be performed if the thickness is below
>> 2.5mm.
>>
>> Check with Metallurgy Lab whether they can machine your sample with
>> thickness 3.73mm and perform Impact.
>>
>> If yes, then Impact test need to be performed at -46/-50degC for Duplex.
>>
>> Thanks & Regards
>>
>> J.Gerald Jayakumar
>> 00968-99438165
>> *From:* victor george <dvgeorge@gmail.com>
>> *To:* materials-welding@googlegroups.com
>> *Cc:* Arul prakash <r.arulprakash@gmail.com>
>> *Sent:* Wednesday, May 22, 2013 2:33 PM
>> *Subject:* [MW:17738] Impact test- minimum thk requirement
>>
>> Hi Experts,
>>
>> Please explain what is the minimum thickness requirement of impact test.
>>
>> Material: A790 S31803 pipe
>> Size: 1/2' Sch 80 (WT- 3.73mm)
>> Sour service
>>
>>
>> Question: Is it possible to do impact test on 3.73 thk?
>>
>>
>> Best Regards,
>> DV.George
>>
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