发明名称 |
HIGH-STRENGTH AND HIGHLY FATIGUE-RESISTANT STEEL RAIL AND PRODUCTION METHOD THEREOF |
摘要 |
The present invention relates to a high-strength, highly wear-resistant, and highly contact-fatigue-resistant steel rail and a production method thereof, and belongs to the field of black steel manufacturing technology. The present invention provides a high-strength and highly fatigue-resistant steel rail, comprising the following chemical components by weight percentage: C: 0.76%˜0.86%; Si: 0.6%˜1%; Mn: 0.7%˜1.5%, Cr: 0.1%˜0.5%, and 0.8%≦Mn %+Cr %≦1.6%; V: 0.05%˜0.3%, Ni: 0.1%˜0.35%, and 0.15%≦V %+Ni %≦0.4%; Mo: ≦0.03%; P: ≦0.02%; S: ≦0.015%; Fe and inevitable impurities: the remaining content, wherein, the metallurgical structure of the steel rail is fine pearlite+A, where, A is proeutectoid ferrite or proeutectoid cementite, and A≦2%. The tensile strength of the obtained steel rail is 1,260 MPa˜1,420 MPa. |
申请公布号 |
US2016194729(A1) |
申请公布日期 |
2016.07.07 |
申请号 |
US201614990407 |
申请日期 |
2016.01.07 |
申请人 |
PanGang Group Panzhihua Iron & Steel Research Institute Co., Ltd. ;Pangang Group Panzhihua Steel & Vanadium Co., Ltd. |
发明人 |
Deng Yong;Guo Hua;Zou Ming;Jia Jihai;Wang Chunjian;Han Zhenyu;Yuan Jun |
分类号 |
C21D9/04;C22C38/48;C22C38/46;C22C38/44;C22C38/04;B22D11/00;C22C38/00;C22C33/04;C21D6/00;C21D8/00;C21D1/613;C21D1/60;C22C38/50;C22C38/02 |
主分类号 |
C21D9/04 |
代理机构 |
|
代理人 |
|
主权项 |
1. A steel rail, comprising the following chemical components by weight percentage: C: 0.76%˜0.86%; Si: 0.60%˜1.00%; Mn: 0.70%˜1.50%, Cr: 0.10%˜0.50%, and 0.80%≦Mn %+Cr %≦1.60%; V: 0.05%˜0.30%, Ni: 0.10%˜0.35%, and 0.15%≦V %+Ni %≦0.40%; Mo: ≦0.03%; P: ≦0.020%; S: ≦0.015%; Fe and inevitable impurities: the remaining content, wherein, the metallurgical structure of the steel rail is fine pearlite+A, where, A is proeutectoid ferrite or proeutectoid cementite, and A≦2%. |
地址 |
Panzhihua CN |