Re: [MW:13138] Charpy Impact Test requirement for P91

pl do it room temp to ensure safe while doing hydro test.

On 11/29/11, Fitria Rahman <t.chintaqa@gmail.com> wrote:
> Mahendran is correct. But i would like to suggest you to read far enough
> into technical specification. I've ever seen that charpy impact is still
> required although its temperature is not critical. Normally, impact test is
> not mandatory for temperature above zero.
>
> Rgds
>
> 2011/11/28 T. Mahendran <cbemahendar@yahoo.com>
>
>> Mr Asif,
>>
>> Charpy test is required to find the metal behavior at cryogenic
>> temperatures, since your operating temperature is higher than zero
>> temperature, this impact test is not required.
>>
>> With regards
>>
>>
>> *T.Mahendran,
>> *QA/QC Engineer,
>> Tabouk - KSA,
>> --- On *Sun, 11/27/11, ASIF <asifdme@gmail.com>* wrote:
>>
>>
>> From: ASIF <asifdme@gmail.com>
>> Subject: [MW:13065] Charpy Impact Test requirement for P91
>> To: "Materials & Welding" <materials-welding@googlegroups.com>
>> Date: Sunday, November 27, 2011, 4:44 AM
>>
>>
>> Dear Members!
>>
>> Project : Solar Power plant
>> Service : Hight Temperature Steam
>> Material : P91
>> Operating temperature range: 37 - 398 Degree Celsius
>> Construction Code : ASME B31.1
>> Welding Code : ASME Sec IX
>>
>> Do we need to do 'Charpy Impact Test' for procedure qualification of
>> P91 material?
>>
>>
>> Regards
>> ASIF
>> +971-50
>>
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>
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