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definitions

air-hardening

[air-hahr-dn-ing]
adjective Metallurgy.
  1. 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for air-hardening

Historical Examples of air-hardening

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