air-hardening steel


Definition of air-hardening steel

: an alloy steel that can be hardened by cooling from a temperature higher than the transformation range either in air or by quenching in a liquid

called also self-hardening steel

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First Known Use of air-hardening steel

1898, in the meaning defined above

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The first known use of air-hardening steel was in 1898

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Cite this Entry

“Air-hardening steel.” Dictionary, Merriam-Webster, Accessed 23 Oct. 2021.

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