10. Steels and alloys for internal combustion engine valves

• Field of application

  European standard NF EN 10090 of June 1998 applies to high-alloy wrought material grades. These materials are used to manufacture intake and exhaust valves for reciprocating internal combustion engines.

• Definitions

  Valve materials are steels and non-ferrous metal alloys with varying degrees of resistance to the following phenomena:

  • heat ;

  • thermal cycle ;

  • corrosion ;

  • oxidation ;

  • fatigue ;

  • impact bending ;

  • wear through friction and abrasion.

Given...