Hardened Valve Seats

[Stephen Lamb]

>Wie Gehts?  Just wanted to let you know I hadn't forgotten about the
>seat
>material.  Checked the SAE books we have--specs for valves, but not
>seats.  Checked the General Motors Materials books, but no mention I

One material used for 'hardened' valve seats is Stellite, which is a Cobalt
based alloy. Also used a facing material on the valve itself.  I can get
specs if you want.

Stephen Lamb
Dept. of Defence DSTO, AMRL
506 Lorimer Street
Fishermans Bend  VIC  3207 Australia
Tel: +61 3 9626 7525
Fax: +61 3 9626 7089

IZCC #180