Hi Ezat ,
Change of Group No. is a Supplementary Essential Variable as per ASME-IX , that is , if impact test exists in your vessel.
1) If you have PQR with impact test condition for P No.8 Gr. No.1 qualified, then you have to use same P No.8 Gr. No.1 only for impact
test vessels.
2) If your vessel does not have impact test , then you can revise the WPS with P No.8 Gr. No. 1 & 2, without Supplementary Essential
Variable with the same impact tested PQR.
In your case, you cannot use your WPS & PQR to weld P No.8 Gr. No.2 for impact test vessels, so you have to qualify a new PQR.
Hope you are clarified.
Regards,
Saravanan,
Korea
On Oct 29, 2013 6:25 PM, "Ezat Adel" <ezatadel2008@gmail.com> wrote:
dear Dr. Georgios Dilintas i need your confirm it is need requalification or did not need.
On Oct 29, 2013 11:05 AM, <george.dilintas@gr.bureauveritas.com> wrote:----Yes it does
best regards
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Korea cell phone: +82 10 2777 8922Ezat Adel ---29/10/2013 10:57:21---Dear Experts, i need your clarify that the changes in material group number with the
From: Ezat Adel <ezatadel2008@gmail.com>
To: materials-welding <materials-welding@googlegroups.com>
Date: 29/10/2013 10:57
Subject: [MW:19105] Change in Supplementary Essential Need re-qualification?
Sent by: materials-welding@googlegroups.com
Dear Experts,
i need your clarify that the changes in material group number with the
same p number need another welding qualification or not.
my case i have WPS for A312 grade TP 316, P no. 8 , group no. 1 to itself.
it's right to use it to weld A312 grade TP 310s, P no. 8 , group no.
2 to itself.
Ezzat
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