Stainless steel valves

[George M. Dailey]

At 09:29 AM 3/20/96 MET, you wrote:
> The best currently used valve material is "Inconel", once
>used in Bell's X-15 aircraft (or rocket?)
----------------------------------------------------------------------------
-------
Speaking of Inconel, I was considering purchasing some pre-cast alignment
fixtures for a #6 oil fired super critical boiler. All vendors of this
product agreed that a 50% nickle / 50% chrome alloy would be the most
resistant metal to use at a 2,500 F furnace gas temp. I don't know what
titanium would cost as a 2" x 4" x 24" rough cast bar but the 50/50 was
about $600.00 each.

GMD