Charpy Impact Test requirement for P91

[ASIF]

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

[T. Mahendran]

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 <asi...@gmail.com> wrote:

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[Fitria Rahman]

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 <cbema...@yahoo.com>

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[kannayeram gnanapandithan]

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

On 11/29/11, Fitria Rahman <t.chi...@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 <cbema...@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 <asi...@gmail.com>* wrote:
>>
>>
>> From: ASIF <asi...@gmail.com>
>> Subject: [MW:13065] Charpy Impact Test requirement for P91
>> To: "Materials & Welding" <material...@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
>>
>> --
>> To post to this group, send email to

>> material...@googlegroups.com<http://us.mc1103.mail.yahoo.com/mc/compose?to=material...@googlegroups.com>

>> To unsubscribe from this group, send email to materials-welding+

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