Tuesday, January 11, 2011

[MW:9184] Re: RELATION BETWEEN WPS & WPQ THICKNESS LIMITS.

Yes, you can qualify, QW403.6, impact thickness limits will not apply
to WPQ (performance qualification)
Case 1: WPS T limits 7.11-14.22
Case 2: WPS T limits 1.7-6.8

however for WPQ, limits will be 1.5 to 2t in both the cases (QW404.30)

On Jan 11, 7:56 pm, Venkat Ramulu <cvram...@yahoo.com> wrote:
> Dear All,
> Any body can clarify,
>
> 1)We have established WPS & PQR for P8 matirial,7.11 thick with  -196ºC
> impact.Based on this WPS, shall I qulify WPQ with 5mm  thick ?. If yes what will
> be the range of qualification.
> 2) Other WPS & PQR for P8&3.4 thik with  -196ºC impact. Based on this if  a WPQ
> is qualifide with 5mm thick,what would be the thickne range of qualification? Is
> it 1.7 to 6.8 or 2.5 to 10mm? give code reference.
> 3) Is there any relation between procedure & performance qualification thickness
> limits.Give me code reference.
>
> Regards,
> C.Venkatramulu.

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