| 发明名称 |
METHOD OF PRODUCING STEEL TUBE HAVING EXCELLENT WORKABILITY |
| 摘要 |
PROBLEM TO BE SOLVED: To provide a steel tube which has excellent workability. SOLUTION: The hot reduction rolling is performed so that a ferrite fraction is controlled to≥20%, and a reduction ratio is controlled to≥25% to produce the steel tube. COPYRIGHT: (C)2003,JPO
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| 申请公布号 |
JP2003193130(A) |
申请公布日期 |
2003.07.09 |
| 申请号 |
JP20010397721 |
申请日期 |
2001.12.27 |
| 申请人 |
NIPPON STEEL CORP |
发明人 |
SHINOHARA YASUHIRO;ASAHI HITOSHI;YOSHINAGA NAOKI;FUJITA NOBUHIRO;TAKAHASHI MANABU |
| 分类号 |
B21B17/14;B21D26/033;B21D26/053;C21D8/10;C22C38/00;(IPC1-7):C21D8/10 |
主分类号 |
B21B17/14 |
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