dear friend,
may i suggest one publication...estimator piping manual by mr pages is a good one for estimating purposes..hope this will help you.
regards
gil
--- "SARE, RALPH H." <SARERH@YANPET.SABIC.com>
wrote:
> ive used the 1978 Pipeline rules of thumb handbook
> by Ed Mcalister also by
> Gulf. Since tthe early 80's i have switched to
> Richardson Process Plant
> Const'n Estimating Standard. Wage, mat'l cost and
> manhours are all based in
> work done in USA (unionized).
>
> Richardson gives the following figure tofield butt
> weld an 8 NPS
> 304SS Sch10S is 8.4 mhrs
> CS 40Std is 7.8 mhrs.
>
> Normally you'll go for a tig root followed by a
> stick for fill and cap for
> SS plus Argon purging. CS will normally be completed
> using stick (this may
> explain it). We've taken sort of a time and motion
> study to establish our
> baseline (our workshop welder versus contractor) and
> our productivity is
> slightly off by 10-15% compared to USA must be the
> weather -extreme and the
> fact that the group consisted of different
> nationalities.
>
> > ----------
> > Subject: [PipingDesign] Estimating Page & Nation
> Gulf Publishing
> >
> >
> > One of the areas of concern I have with the
> > publication is that in the alloy section the are %
> > adders for this type of piping. I fail to see how
> > handling DN 200 alloy pipe attracts a 40+% adder
> to
> > carbon steel?
> >
> > Anyone experienced with using this publication is
> > invited to return constructive comments. Is there
> any
> > other publication worth using?
> >
> > Cheers
> >
> > Geoff Stone
> >
> >
>
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