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STEEL FOR MACHINE STRUCTURAL PURPOSES FOR SURFACE HARDENING USE AND STEEL PARTS FOR MACHINE STRUCTURAL PURPOSES AND METHOD OF PRODUCTION OF SAME
STEEL FOR MACHINE STRUCTURAL PURPOSES FOR SURFACE HARDENING USE AND STEEL PARTS FOR MACHINE STRUCTURAL PURPOSES AND METHOD OF PRODUCTION OF SAME
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机译：用于表面硬化用途的机械结构用钢和机械结构用途的钢制零件及其制造方法
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摘要
A steel for surface hardening for machine structural use which is characterized by containing, in terms of mass %, 0.30-0.60% C, 0.02-2.0% Si, 0.35-1.5% Mn, 0.001-0.5% Al, 0.05-2.0% Cr, 0.001-1.0% Sn, 0.0001-0.021% S, 0.0030-0.0055% N, 0.01-2.0% Ni, 0.01-2.0% Cu, up to 0.030% P, and up to 0.005% O, with the remainder comprising Fe and incidental impurities, the contents of Sn, Cu, Ni, Mn, and S satisfying relationships (1) and (2).; −0.19≦0.12×Sn+Cu−0.1×Ni≦0.15 (1); 60≦Mn/S≦300 (2)
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机译：机械结构用表面硬化钢，其特征在于以质量％计包含0.30-0.60％C，0.02-2.0％Si，0.35-1.5％Mn，0.001-0.5％Al，0.05-2.0％Cr ，0.001-1.0％的Sn，0.0001-0.021％的S，0.0030-0.0055％的N，0.01-2.0％的Ni，0.01-2.0％的Cu，高达0.030％的P和0.005％的O，其余包括Fe和附带杂质中，Sn，Cu，Ni，Mn和S的含量满足关系式（1）和（2）。 <？in-line-formulae description =“在线表达式” end =“ lead”？>-0.19≦0.12×Sn + Cu-0.1×Ni≦0.15（1）<？in-line-formulae description =“ In -line Formulae“ end =” tail“？>; <？in-line-formulae description =“在线表达式” end =“ lead”？> 60≦Mn / S≦300（2）<？in-line-formulae description =“在线表达式” end =“尾巴”？>
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