发明名称 |
Electric-resistance-welded steel pipe with high strength |
摘要 |
An electric-resistance-welded steel pipe with high strength. The pipe consists essentially of (a) 0.05 to 0.30 wt. % C, (b) 0.6 to 2.0 wt. % Mn, (c) 0.03 to 0.70 wt. % Si, (d) (i) 0.5 wt. % or less Mo by itself or (ii) 0.5 wt. % or less Mo with 1.2 wt. % or less Cr or (iii) 0.5 wt. % or less Mo with 0.1 wt. % or less V or (iv) 0.1 wt. % or less V and (e) the balance being Fe and inevitable impurities. The steel pipe has a martensitic phase in an amount of 60 to 100% and has a tensile strength of 120 to 170 kgf/mm2. The steel pipe is useful as an impact bar for the inside of an automobile door.
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申请公布号 |
US5286309(A) |
申请公布日期 |
1994.02.15 |
申请号 |
US19910813361 |
申请日期 |
1991.12.24 |
申请人 |
NKK CORPORATION |
发明人 |
MAEDA, TATSUO;TAKAMURA, TOSHIHIRO;ISHIZAWA, YOSHIICHI;SUGIMOTO, YUJI;MORIMOTO, MITOSHI;SUGAYOSHI, TETSURO;NISHIMURA, FUMIHIRO |
分类号 |
B23K13/00;C21D6/00;C21D8/02;C21D8/10;C21D9/08;C22C38/00;C22C38/04;C22C38/14;C22C38/32;F16L9/02;(IPC1-7):C22C38/02;C22C38/12 |
主分类号 |
B23K13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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