Re: Ferralium Pipe

steve,
bohler piping sells ferralium.
its one choice but really only most cost effective in HF service where there is no other realistic choice and thats on the hot corrosive combo that eats everything else.

i would be looking at the stainlesses because although they are commonplace they have surprising
value for money in nasty situations like this as long as you dont hit their corrosion weak spots in chemical environmental resistance and temp

I'd need to know more about the specs & service (both P&T and chemical) for resistance
to pick the absolute sure one

Al

• Original Message ----- From: "Steve McKenzie" < To: <PipingDesign@yahoogroMechproj@xtra.co.nz>ups.com> Sent: Tuesday, May 17, 2005 3:58 AM Subject: [PipingDesign] Ferralium Pipe

> Gents + 2
>
> I think I asked this a while ago but lost the answer.
>
> Can anyone suggest a supplier for Ferralium 255 pipe in 50NB sch40
> and similar sizes? Alternatively is there another superduplex that I
> should be looking at? Service is 30 bar oxygen inside and a nasty
> acidic slurry brew at around 230C outside also at about 30 bar (open
> end pipe). Metallurgical autoclave. Strength is a secondary issue to
> combustibility and corrosion resistance. The Ti Niobium alloys look a
> bit scary to me from a combustion perspective, as I know the way Ti
> sparks (and burns).
>
> Am suffering from ineffective overgoogling so a human response would
> be appreciated.
>
> Cheers
>
> Steve
>
>
>
>
>
>
>
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Received on Tue May 17 14:14:00 2005