| 发明名称 |
Non-heat refined steel bar having improved toughness |
| 摘要 |
Improved toughness of forging is obtained without quenching and tempering by controlling the steel composition to: 0.05% to less than 0.15% C.; 0.10-1.00% Si; 0.50-3.00% Mn; 1.60-4.20% Mn+Cr; 0.010-0.030% Ti; 0.005-0.0030% B; 0.01-0.05% Al; and 0.0060% or less of N.
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| 申请公布号 |
US4806178(A) |
申请公布日期 |
1989.02.21 |
| 申请号 |
US19860942960 |
申请日期 |
1986.12.16 |
| 申请人 |
NIPPON STEEL CORPORATION |
发明人 |
KOYASU, YOSHIRO;TSUCHIDA, YUTAKA;SUZUKI, NOBUKAZU |
| 分类号 |
C22C38/38;(IPC1-7):C22C38/28 |
主分类号 |
C22C38/38 |
| 代理机构 |
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