| 发明名称 |
CASE HARDENING STEEL |
| 摘要 |
Provided is a case hardening steel which allows effective inhibition of abnormal grain growth during carburizing treatment or the like and makes it possible to solve the problem of abnormal grain growth-induced reduction in characteristics. In the case hardening steel, a total amount of TiC, ZrC and AlN which are precipitate particles contained in 100 g of a steel material after subjecting the case hardening steel to hot rolling is 3.5×10−4 mole or less. |
| 申请公布号 |
US2015000795(A1) |
申请公布日期 |
2015.01.01 |
| 申请号 |
US201414311594 |
申请日期 |
2014.06.23 |
| 申请人 |
NAKAYAMA Kyohei;SAKAI Yasuaki;MORITA Toshiyuki;INOUE Keisuke |
发明人 |
NAKAYAMA Kyohei;SAKAI Yasuaki;MORITA Toshiyuki;INOUE Keisuke |
| 分类号 |
C23C8/32;C22C38/60;C22C38/42;C22C38/48;C22C38/02;C22C38/00;C22C38/54;C22C38/50;C22C38/44;C22C38/04 |
主分类号 |
C23C8/32 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A case hardening steel, wherein a total amount of TiC, ZrC and AlN which are precipitate particles contained in 100 g of a steel material after subjecting the case hardening steel to hot rolling is 3.5×10−4 mole or less. |
| 地址 |
Aichi JP |
