发明授权
- 专利标题： Steel for carburizing, carburized steel component, and method of producing the same
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申请号： US13818047申请日： 2012-02-08
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公开(公告)号： US09797045B2公开(公告)日： 2017-10-24
- 发明人: Manabu Kubota
- 申请人： Manabu Kubota
- 申请人地址： JP Tokyo
- 专利权人： Nippon Steel & Sumitomo Metal Corporation
- 当前专利权人： Nippon Steel & Sumitomo Metal Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JP2011-027278 20110210
- 国际申请： PCT/JP2012/052853 WO 20120208
- 国际公布： WO2012/108460 WO 20120816
- 主分类号： C23C8/00
- IPC分类号： C23C8/00 ; C23C22/78 ; C21D1/06 ; C21D1/25 ; C21D1/32 ; C21D8/06 ; C21D9/32 ; C22C38/60 ; C23C8/22 ; C21D8/00 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/22 ; C22C38/24 ; C22C38/26 ; C22C38/28 ; C22C38/32 ; C22C38/50 ; C22C38/54 ; C23C8/02 ; C23C8/32 ; C23C8/80
摘要：
A steel for a carburizing and a carburized steel component having a steel portion and a carburized layer with a thickness of more than 0.4 mm to less than 2 mm which is formed on an outside of the steel portion. A chemical composition of the steel for the carburizing and the steel portion of the carburized steel component satisfies simultaneously equations of a hardness parameter, a hardenability parameter, and a TiC precipitation parameter.
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