for the time being we just concentrate on ASME IX for this problem,
not on any construction codes like B31.3, or ASME SecVIII, which in
addition have own variables to follow.
On May 26, 8:12 pm, babu raghavan <babuprm...@yahoo.com> wrote:
> As per the above PQR P1 Gr1 QUALIFIED 1.5mm to 12mm and PQR P1 Gr 2 QUALIFIED 5 TO 18.34mm ( ASME B 31.3 ) , SO Y ou can not weld P1 Gr 2 below 5 mm.You can weld P1 Gr1 up to 19 mm ( because of above 19 mm PWHT REQUERED ,it is not clear.)
>
>
> BABU.P.R
>
> --- On Mon, 5/26/08, Bathula Raghuram (Mumbai - PIPING) <R.Bath...@ticb.com> wrote:
>
> From: Bathula Raghuram (Mumbai - PIPING) <R.Bath...@ticb.com>
> Subject: [MW:795] Dissimilar Group number/Thickness combination PQR as per QW403.5/QW403.6
> To: materials-welding@googlegroups.com
> Date: Monday, May 26, 2008, 11:19 AM
>
> When Impact testing of HAZ is required by design, welding as per ASME SecIX
>
> One of PQR qualified with a combination of group number and thickness welded together as 516 Gr60- 6mm thk and 516 Gr 70- 12mm thk
> WPS prepared for the range of 6-24mm for both group numbers. (QW403.6)
>
> In my opinion it virtually qualifies for nothing (except for 12mm thick) for a combination of group numbers
>
> For E.g. I have nozzle SA333 Gr6 and WNRF flange SA350LF2 with thickness of 7.11mm
>
> Where as in the above PQR, P#1, Gr#1 qualification range is 6-12mm and P#1, Gr#2 qualification range is 12-24mm and (QW403.5 and 403.6)
>
> Please share your views, do my views justified by the correct interpretation of QW403.5 and 403.6?
>
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