Re: [MW:14743] Impact test qualification requirement for WPS/PQR

Dear Asad,

Please clarify the charpy specimen size used during testing and the
testing impact temp

Reagrds

Vikas waghmare

On 7/2/12, rahul m <rahulmenator@gmail.com> wrote:
> * SA 387 GR 12 CL2, 65 THK. MDMT is -18 DEG CELCIUS how to make PQR for
> this thickness ? or how many PQR required for this thickness?*
>
> On Wed, Mar 14, 2012 at 2:31 PM, asad azmi <azmiasadayub@gmail.com> wrote:
>
>> Dear All,
>>
>> Greetings.
>>
>> A vessel is being fabricated as per ASME SEC VIII DIV 1.
>>
>> Vessel material is SA 387 GR 12 CL2, 65 THK. MDMT is -18 DEG CELCIUS.
>>
>> Approved WPS is supported by 2 PQR detailed as below --
>>
>> *PQR 1*
>> **
>> Test coupon thickness - 40 mm ,
>> Welding process used - GTAW + SMAW + SAW ,
>> Weld deposit by SMAW Process is 19 mm.
>> Weld deposited by SMAW is impact tested at 0 deg celcius.
>> **
>> *PQR 2*
>>
>> Test coupon thickness - 10 mm ,
>> Welding process used - GTAW + SMAW ,
>> Weld deposit by SMAW Process is 8 mm.
>> Weld deposited by SMAW is impact tested at - 18 deg celcius.
>> **
>> *Whether PQR 2 can be used for SMAW Process to deposit 21 mm weld in
>> a weld groove of 65 mm in depth .( for closing seam of shell to dished
>> head
>> & nozzle to dished head weld seam)*
>> **
>> Please advice. please give ASME SEC IX Reference.
>>
>> Thanks & Regards
>>
>> Asad Azmi
>> **
>>
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>
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