Hi,
I'm not sure if it's considered OK to advertise on this list. If not than simply
delete this post.
We are offering titanium (various Ti alloys) tubing at very competitive pricing
- round and aero profile. Titanium castings and sheet metal fabrications. We can
also TIG  weld frames to your specification with exceptional quality. Contact me
if you're interested. Here's some pictures

Thank You
Ted    nevaracing@mail.ru


It's OK Ted if it has apps to aircraft or rotaries.
That streamline stuff is great.

Thanks.

Paul Lamar

Paul,

Any information on the hardness of the metal in the iron rotor apex seal
area?

Doug in Japan

Only the ends are induction hardened and I don't know what that number is.
Perhaps further research will reveal typical numbers for that process
on cast iron.

Paul Lamar