发明名称 |
ALLOYED-MOLTEN-ZINC-PLATED STEEL SHEET WITH EXCELLENT PROCESSABILITY AND HIGH STRENGTH AND PROCESS FOR PRODUCING THE SAME |
摘要 |
<p>An alloyed-molten-zinc-plated steel sheet which combines excellent processability with high strength. The alloyed-molten-zinc-plated steel sheet with excellent processability and high strength comprises: a high-strength steel sheet comprising, in terms of percent by weight, 0.05 to 0.15% carbon, 0.3 to 2.0% silicon, 1.0 to 2.8% manganese, up to 0.03% phosphorus, up to 0.02% sulfur, 0.005 to 0.5% aluminum, up to 0.0060% nitrogen, and iron and unavoidable impurities as the remainder and satisfying the relationships (%Mn)/(%C)>=12 and (%Si)/(%C)>=4, wherein %C, %Si, and %M are the contents of carbon, silicon, and manganese, respectively; and a deposit layer formed thereon by dipping in a melt of an alloyed zinc comprising 0.05 to 0.5 wt.% aluminum, 5 to 15 wt.% iron, and zinc and unavoidable impurities as the remainder. It is characterized in that the tensile strength F (MPa) and the elongation L (%) satisfy the relationship L>=52-0.035xF.</p> |
申请公布号 |
WO2004061137(A1) |
申请公布日期 |
2004.07.22 |
申请号 |
WO2002JP13712 |
申请日期 |
2002.12.26 |
申请人 |
NIPPON STEEL CORPORATION;HONDA, KAZUHIKO;KAMEDA, MASAHARU;SAKUMA, YASUHARU;SAITO, AKIO;NISHIYAMA, TETSUO;ITAMI, ATSUSHI |
发明人 |
HONDA, KAZUHIKO;KAMEDA, MASAHARU;SAKUMA, YASUHARU;SAITO, AKIO;NISHIYAMA, TETSUO;ITAMI, ATSUSHI |
分类号 |
B32B15/01;C21D8/02;C22C18/00;C22C38/02;C22C38/04;C22C38/06;C23C2/06;C23C2/28;(IPC1-7):C21D9/46 |
主分类号 |
B32B15/01 |
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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