Noah Webster Dictionary (1913 edition): Self-hardening

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Noah Webster Dictionary (1913 edition): Self-hardening

Subjects in this Topic:

Self-excite
Self-existence
Self-existent
Self-exposure
Self-fertilization
Self-fertilized
Self-glorious
Self-government
Self-gratulation
Self-hardening
Self-heal
Self-healing
Self-help
Self-homicide
Self-ignorance
Self-ignorant
Self-imparting
Self-importance
Self-important

(a.) Designating, or pert. 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. They are chiefly used as high-speed steels.