Re: [MW:5211] Re: Welding of an attachment directly on the weld overlay

If the weld overlay or clad is say 304L and the internals which is to be welded is 304L, then the applicable WPS is between 304L(P8) and 304L(P8). Only when you weld dissimilar metals you require buttering.

J.GERALD JAYAKUMAR 00919344954677  

--- On Thu, 5/20/10, fer <fernando.alvarez.fdez@gmail.com> wrote:

> From: fer <fernando.alvarez.fdez@gmail.com>
> Subject: [MW:5196] Re: Welding of an attachment directly on the weld overlay
> To: "Materials & Welding" <materials-welding@googlegroups.com>
> Date: Thursday, May 20, 2010, 7:52 AM
> Thanks for your help Dindo, but my
> question was How should be
> qualificated the WPS used? as a butt weld? as a buttering
> weld?
>
>
>
>
> On May 18, 6:46 pm, Dindo <dindodelac...@gmail.com>
> wrote:
> > You can do this by making sure that the weld to be
> welded on is clean and
> > smooth to prevent any inclusions, you can use  your
> orginal WPS.
> >
> > On Tue, May 18, 2010 at 8:36 AM, fer <fernando.alvarez.f...@gmail.com>wrote:
> >
> >
> >
> >
> >
> > > ASME VIII div 2 allows you to weld an attachment
> directly on the weld
> > > overlay of a pressure vessel.
> >
> > > How should be qualified the WPS to carry out this
> welding?
> >
> > > The coupon of the PQR should be done with a
> buttering between the
> > > material of the shell and the material of the
> attachment?
> >
> > > Could be asigned a P number to the weld overlay
> material and weld the
> > > coupon between the P number of the overlay
> material and the P number
> > > of the attachment?
> >
> > > Any idea would be helpful
> >
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> >
> > - Show quoted text -
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