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1. Steels and alloys for internal combustion engine valves
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.
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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 these characteristics, these materials are used...
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Steels and alloys for internal combustion engine valves
Creep-resistant nickel- and cobalt-based steels and alloys
