selfhardening

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English - English
Designating, or pert
They are chiefly used as high-speed steels
to, any of various steels that harden when heated to above a red heat and cooled in air, usually in a blast of cold air with moderate rapidity, without quenching
Such steels are alloys of iron and carbon with manganese, tungsten and manganese, chromium, molybdenum and manganese, etc
selfhardening
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