热硬性是指钢在较高温度下，仍能保持较高硬度的性能。
... thermograph 温度自动记录仪 thermohardening 热硬性；热硬化（的）；热固性（的） thermohardening lacquer 热固性涂料 ...
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高速钢是一种具有特殊性能的钢，具有高的热硬性、耐磨性而广泛应用于工业生产中。
The high-speed steel is a kind of steel with special performance, have high hot and rigid, wearability and applying to industrial production extensively.
钨能进步钢的红硬性和热强性，并能进步钢的耐磨性。
Tungsten can improve the hardness and thermal strength of steel, and can improve the wear resistance of steel.
与锻造模具钢相比，铸造热锻模具钢虽然韧性低，但强度高、红硬性好，具有较低的缺口敏感性和较高的抗热疲劳性。
Compared with the forging die steel, casting forging die steel although toughness is low, but high strength, red hardness is good, with low notch sensitivity and high resistance to thermal fatigue.
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