(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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). self-hardening. Retrieved September 29, 2026, from http://smartdefine.org/self-hardening/definitions/2060016 |
| Chicago | Webster's. 2011. "self-hardening" http://smartdefine.org/self-hardening/definitions/2060016 (accessed September 29, 2026). |
| Harvard | Webster's 2011, self-hardening, Smart Define, viewed 29 September, 2026, <http://smartdefine.org/self-hardening/definitions/2060016>. |
| MLA | Webster's. "self-hardening" 28 May 2011. Web. 29 September 2026. <http://smartdefine.org/self-hardening/definitions/2060016> |