Wednesday, February 25, 2009

[MW:1638] Re: WPS from 2 PQRs

Dear Prasad,
Let me make it clear...

QW 200.2(f) states about One WPS from several PQRs and vise versa.

Assume, I have got a PQR of GTAW of 4mm thick, and another PQR of 10mm
thick SMAW.
I would like to write a WPS for 20mm thick with GTAW+SMAW as the above
mentioned PQRs supporting(Assume all other variables are meeting the
req.)----Is it possibe ?

Is it possibel to write a WPS of (4+10)x 2 = 28mm thick (2t range)?

As I qouted earlier, QW 200.2(f) gives an example about write a WPS
for 1.5mm thick thru 32mm thick.So the PQRs may be of (1)which cover
upto 1.5mm to 5mm thick for its WPS (2) which cover from 5mm to 32mm
thick.

Regards


On Feb 24, 10:02 am, VJ V <veeve...@gmail.com> wrote:
> Hi everyone,
>
> I would like to know reg Sec IX,QW 200.2(f) and QW 200.4(a)
>
> 200.2(f) states " A single WPS may cover several essential variable
> changes......(eg. a single WPS may cover a thinkness range from 1.5mm
> thru 32mm if PQR exist for both 1.5 to 5mm and 5mm thru 32 mm ranges)
>
> But QW 200.4(a) states if all essential/supplementary essential
> variable according to QW 451 is meeting then ......
>
> My doubt is this: As per 200.2(f), "Base metal range" is not meeting
> the requirement of QW 451.
>
> But QW 200.4(a), states base metal thickness range, weld metal
> thickness range etc shall meet QW 451.
>
> Can anybody please clarify...
>
> Regrds

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