碳素工具鋼
Carbon tool steel
碳素工具鋼是基本上不含合金元素的高碳鋼，含碳量在0.65%～1.35%范圍內(nèi)，其生產(chǎn)成本低，東莞鋼材批發(fā)原料來源易取得，切削加工性良好，處理后可以得到高硬度和高耐磨性，所以是被廣泛采用的鋼種，用來制造各種刃具、模具、量具。
Carbon tool steel is high carbon steel basically contains alloy elements, the carbon content in the range of 0.65% ~ 1.35%, the production cost is low, the Dongguan steel wholesale source of raw materials easy to get, good machinability, after treatment can obtain high hardness and high wear resistance, so it is widely used in steel, used to manufacture all kinds of cutting tool, mold, measuring tools.
但這類鋼的紅硬性差，即當(dāng)工作溫度大于250℃時(shí)，鋼的硬度和耐磨性就會(huì)急劇下降而失去工作能力。另外，碳素工具鋼如制成較大的零件則不易淬硬，而且容易產(chǎn)生變形和裂紋。
But the hardness of this kind of steel is poor, that is, when the working temperature is more than 250 degrees C, the hardness and wear resistance of the steel will drop sharply and lose the working capacity. In addition, carbon tool steel, if made of larger parts, is not easy to harden, and it is easy to produce deformation and crack.
易切削結(jié)構(gòu)鋼
Easy cutting structural steel
易切削結(jié)構(gòu)鋼是在鋼中加入一些使鋼變脆的元素，東莞鋼材批發(fā)使鋼切削時(shí)切屑易脆斷成碎屑，從而有利于提高切削速度和延長(zhǎng)刀具壽命。使鋼變脆的元素主要是硫，在普通低合金易切削結(jié)構(gòu)鋼中使用了鉛、碲、鉍等元素。
Free cutting structural steel is added some elements to make steel brittle in steel. Dongguan steel wholesale makes steel chips brittle when cutting, so as to improve cutting speed and prolong tool life. The elements that make the steel brittle are mainly sulfur, and lead, tellurium, bismuth and other elements are used in ordinary low alloy and easy cutting structural steels.
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