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STEEL FOR CASE-HARDENING TREATMENT, CASE-HARDENED STEEL COMPONENT, AND METHOD FOR PRODUCING SAME
STEEL FOR CASE-HARDENING TREATMENT, CASE-HARDENED STEEL COMPONENT, AND METHOD FOR PRODUCING SAME
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机译：用于渗碳硬化处理的钢，渗碳硬化钢成分及其生产方法
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摘要
In the steel for a surface layer hardening which is treated with carburizing in a temperature range of 800°C to 900°C, chemical composition thereof contains, by mass %, C: 0.10% to 0.60%, Si: 0.01% to 2.50%, Mn: 0.20% to 2.00%, S: 0.0001% to 0.10%, Cr: 2.00% to 5.00%, Al: 0.001% to 0.50%, N:0.0020% to 0.020%, P: 0.001% to 0.050%, and O: 0.0001% to 0.0030%; the remaining portion thereof includes Fe and unavoidable impurities; and the total amount of Cr, Si, and Mn satisfies, by mass %, 2.0≤Cr+Si+Mn≤8.0.
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机译：在800℃〜900℃的温度范围内进行渗碳处理的表面层硬化用钢中，其化学组成按质量％计含有C：0.10〜0.60％，Si：0.01〜2.50％。 ，Mn：0.20％至2.00％，S：0.0001％至0.10％，Cr：2.00％至5.00％，Al：0.001％至0.50％，N：0.0020％至0.020％，P：0.001％至0.050％，和O：0.0001％至0.0030％;其余部分包括铁和不可避免的杂质。 Cr，Si和Mn的总量以质量％满足2.0≤Cr+ Si +Mn≤8.0。
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