| 发明名称 |
MANUFACTURE OF HIGH TENSILE NONNREFINED STRUCTURAL STEEL SHEET |
| 摘要 |
PURPOSE:To manufacture a high tensile non-refined structural steel sheet having superior toughness at low temp. and causing no separation in a cold toughness test by limiting the temp. and the reduction ratio of each stage in rolling of heated steel. |
| 申请公布号 |
JPS5433219(A) |
申请公布日期 |
1979.03.10 |
| 申请号 |
JP19770099141 |
申请日期 |
1977.08.18 |
| 申请人 |
SUMITOMO METAL IND |
发明人 |
NAKANO NAOKAZU;HASHIMOTO TAMOTSU |
| 分类号 |
C21D8/02;(IPC1-7):21D7/13 |
主分类号 |
C21D8/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
