air-hardening

[ air-hahr-dn-ing ]

adjectiveMetallurgy.
  1. noting any metal, especially alloy steel, that can be hardened from above its transformation point by cooling in air.

Origin of air-hardening

1
First recorded in 1905–10

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use air-hardening in a sentence

  • This alloy, because hardened simply in air, was called “air-hardening” or “self-hardening.”

    Inventors at Work | George Iles

British Dictionary definitions for air hardening

air hardening

noun
  1. a process of hardening high-alloy steels by heating and cooling in a current of air: Compare oil hardening

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