>  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

Paul,
Depending on the iron alloy, it can get very hard. I will hardness test a
rotor I have here and get back to you with the results.
Larry

Maybe only be the RX8 rotors that are induction hardened.

It was not mentioned in the 1986 rotary engine Material Technology
paper.

http://www.rotaryeng.net/material-tech.pdf


Paul Lamar

Ti Alloy that I intend to use for rotors has average hardness of 38,3
Rockwell C
(363HB), Ultimate strength min 900Mpa.

 Thank You
 Ted In Russia

I think that will work Ted.

Thanks

Paul Lamar In US
-

Paul,
The old 13b rotors I have here were not induction hardened.
Larry

I did not think so. I thing they started doing that with the RX8 rotors.

Paul Lamar