air-hardening
[ air-hahr-dn-ing ]
/ ˈɛərˌhɑr dn ɪŋ /
adjective Metallurgy.
noting any metal, especially alloy steel, that can be hardened from above its transformation point by cooling in air.
Origin of air-hardening
First recorded in 1905–10
Words nearby air-hardening
air-cool,
air-core,
air-dry,
air-entrained concrete,
air-express,
air-hardening,
air-intake,
air-lance,
air-launched cruise missile,
air-lift pump,
air-line
British Dictionary definitions for air hardening
air hardening
noun
a process of hardening high-alloy steels by heating and cooling in a current of air
Compare oil hardening