Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Of or relating to materials, such as certain steels, that harden without special treatment.
from the GNU version of the Collaborative International Dictionary of English.
- adjective (Metal.) 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.
Etymologies
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Examples
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Remember that self-hardening steels must never be dipped in water, and always remember for all work requiring degrees of heat, that the more carbon, the less heat.
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Molybdenum is used to increase the hardness to a high degree and makes the steel suitable for high-speed cutting and gives it self-hardening properties.
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Its alloy is much used for high-speed cutting tools, the steel hardening when cooled in the air and being called self-hardening.
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At the present day when tungsten steel, known as high speed steel and self-hardening steel, is revolutionizing machine-shop practice, the work of Elhuyar is of particular interest.
The Catholic Encyclopedia, Volume 5: Diocese-Fathers of Mercy 1840-1916 1913
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'The sin, therefore, can only be the culmination of a long course of self-hardening and depraving.'
Expositions of Holy Scripture St. Mark Alexander Maclaren 1868
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God endured them with much long-suffering -- exercised a great deal of patience towards them, let them alone to fill up the measure of sin, to grow till they were ripe for ruin, and so they became fitted for destruction, fitted by their own sin and self-hardening.
Commentary on the Whole Bible Volume VI (Acts to Revelation) 1721
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The shell is made of basic plywood covered with self-hardening clay, after which the master crafter hand-carved some glyphs into the material.
IGN Xbox 360 2010
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A plywood box was coated with self-hardening clay, and this clay was carved with various glyphs before it dried.
Gizmodo 2010
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A plywood box was coated with self-hardening clay, and this clay was carved with various glyphs before it dried.
Gizmodo 2010
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Tom "Givintats" Keller constructed the cube out of a thin plywood box coated with self-hardening clay and a coat of chrome.
GameSetWatch 2010
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