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CARBON STEEL OR LOW ALLOY STEEL WITH IMPROVED WORKABILITY AND METHOD FOR PRODUCING THIS STEEL
CARBON STEEL OR LOW ALLOY STEEL WITH IMPROVED WORKABILITY AND METHOD FOR PRODUCING THIS STEEL
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机译:具有改善的可加工性的碳素钢或低合金钢及其生产方法
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摘要
A carbon or low-alloy steel is provided with improved machinability. The carbon content of the steel is less than 1.5% and the sum of the alloy elements contained therein is less than 9%. The steel contains oxide and sulfide inclusions, and the chemical composition of the steel includes 0.1%=Mn, 0.01%=Al=0.05%, 0.025%=S=0.3%,0.002%=Ca, O=0.0015% by weight; the "KO oxides" cleanness index is less than 30, all the oxides are lime aluminates, and the average calcium content of type 2, type 3, type 4 and type 5 inclusions is less than 30%. A process of manufacturing such steel and an oxide-core wire for its manufacture are also provided.
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机译:碳或低合金钢的切削加工性得到改善。钢的碳含量小于1.5%,钢中所含合金元素的总和小于9%。该钢包含氧化物和硫化物夹杂物,并且该钢的化学成分包括0.1%<= Mn,0.01%<= Al <= 0.05%,0.025%<= S <= 0.3%,0.002%<= Ca,O < = 0.0015重量%; “ KO氧化物”清洁度指数小于30,所有氧化物均为铝酸钙,类型2,类型3,类型4和类型5夹杂物的平均钙含量小于30%。还提供了制造这种钢的方法以及用于其制造的氧化芯线。
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