[MW:3993] Re: P1 Gr1 PQR with impact will support P1/S1 Gr2 material?

Group Number is a supplementary essential variable, hence new PQR
required, also check if your construction code is B31.3 then you must
qualify the PQR on X65 material only.

On Jan 7, 9:33 pm, "Chandra, Vasanthan (Lagos)"
<Vasanthan.Chan...@DeltaAfrik.com> wrote:
> Friends,
>
> I have come across a typical issue as below,
>
> 1.      Material is API 5L X-65 - S No 1 Gr.2
> 2.      Impact required at -29 deg.C
> 3.      Welding as per ASME Sec IX
>
> I have a PQR which is SA 106 Gr B (P1 Gr 1) Impact tested at -30 deg.C
>
> Can I support this PQR for S1 Gr 2 or P1 Gr 2? My client is rejected
> this and asking for PQR which was done on Group 2 materials either on S1
> or P1.
>
> Could you let me know, since my client is seeking evidence as per Sec
> IX? How to convince them that Gr 1 impact tested can also be used for Gr
> 2 materials.
>
> Regards,
>
> Vasanth
>
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