Group, Mea culpa, etc..
I went back to my ASM books yesterday, and unfortunatly the temp range 
in which most of the Ti alloys PLUMET is right at our max operating 
temp of about 1700°F. Therefore I must suggest that nobody make their 
Rotary exhaust out of titainum. I must say the reguardless of the cost 
it is too chancy. Having been a machinist in my youth I must admit that 
my dislike of most of the nickel base alloys come from the fact that 
they tend to be a total bitch to machine. Looks like inconel and 700X 
are here to stay. Bill Jepson

 
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