air hardening

air-hardening

[air-hahr-dn-ing]
adjective Metallurgy.
noting any metal, especially alloy steel, that can be hardened from above its transformation point by cooling in air.

Origin:
1905–10

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To air hardening
Collins
World English Dictionary
air hardening
 
n
Compare oil hardening a process of hardening high-alloy steels by heating and cooling in a current of air

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature