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The high hardness rustless steel and its production mannered null mass which are superior in mirror surface

机译：高硬度无锈钢及其在镜面上表现优异的零缺陷质量

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摘要

PROBLEM TO BE SOLVED: To provide a high hardness stainless steel excellent in a mirror-finished surface property and a producing method therefor.;SOLUTION: The stainless steel contains, by mass, ≤0.05% C, 1.5 to 3.5% Si, ≤3.0% Mn, 6.0-12.0% Cr, 4.0-10.0% Ni, ≤6.0% Cu, 0.5-3.0% Ti, ≤2.0% (including 0%) Al and not more than ≤1.0% Mo, not more than ≤0.01% N and the balance Fe with inevitable impurities. Preferably, this stainless steel has ≥59 HRC hardness and may contain ≤1.0% Nb and/or ≤1.0% Ta. Alternatively, the stainless steel may further contain ≤0.1% Zr. In the producing method for stainless steel of this invention, a steel having a composition as described above produced by a consumable electrode remelting method is subjected to a solution treatment at temperature of 1,000-1,150°C and an aging treatment at temperature of 400-550°C, thereby adjusting the stainless steel to a hardness of ≥59 HRC.;COPYRIGHT: (C)2007,JPO&INPIT

机译：要解决的问题：提供一种镜面表面处理性能优异的高硬度不锈钢及其制造方法。解决方案：该不锈钢按质量计含有0.05％C，1.5至<3.5％Si， ≥3.0％Mn，6.0-12.0％Cr，4.0-10.0％Ni，≥6.0％Cu，0.5-3.0％Ti，≥2.0％（包括0％）的Al和不超过≤1.0％的Mo， N不超过＆le; 0.01％，其余的Fe中不可避免地带有杂质。优选地，该不锈钢具有≥59HRC硬度，并且可以包含≤1.0％的Nb和/或≤1.0％的Ta。或者，不锈钢可进一步包含≤0.1％的Zr。在本发明的不锈钢的制造方法中，将通过消耗电极重熔法制造的具有上述组成的钢在1,000〜1,150℃的温度下进行固溶处理，并在400〜150℃的温度下进行时效处理。 550°C，从而将不锈钢的硬度调整到≥59HRC .;版权所有：（C）2007，JPO＆INPIT

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公开/公告号JP4207165B2

专利类型
公开/公告日2009-01-14

原文格式PDF
申请/专利权人日立金属株式会社;
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申请/专利号JP20060036573
发明设计人井上義之;遠山文夫;
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申请日2006-02-14
分类号C22C38/00;C22C38/58;C22B9/18;C22B9/20;C21D6/00;
国家 JP
入库时间 2022-08-21 19:38:39

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