首页> 外国专利> MICRO-ALLOYED HIGH-STRENGTH MULTI-PHASE STEEL CONTAINING SILICON AND HAVING A MINIMUM TENSILE STRENGTH OF 750 MPA AND IMPROVED PROPERTIES AND METHOD FOR PRODUCING A STRIP FROM SAID STEEL

MICRO-ALLOYED HIGH-STRENGTH MULTI-PHASE STEEL CONTAINING SILICON AND HAVING A MINIMUM TENSILE STRENGTH OF 750 MPA AND IMPROVED PROPERTIES AND METHOD FOR PRODUCING A STRIP FROM SAID STEEL

机译：包含硅且最小拉伸强度为750 MPA的微合金高强度多相钢和改进的性能，以及由所述钢生产钢带的方法

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摘要

A high-strength multi-phase steel having minimum tensile strengths of 750 MPa and preferably having a dual-phase microstructure for a cold- or hot-rolled steel strip, in particular for lightweight vehicle construction is disclosed. The high-strength multi-phase steel has improved forming properties and a ratio of yield point to tensile strength of at most 73%. The high-strength multi-phase steel includes in mass %: C0.075 to 0.105; Si0.600 to 0.800; Mn1.000 to 0.700; Cr0.100 to 0.480; Al0.010 to 0.060; N 0.00200.0120; S0.0030; Nb0.005 to 0.050; Ti0.0050 to 0.050; B0.0005 to 0.0040; Mo0.200; Cu0.040%; Ni0.040% the remainder iron, including typical elements accompanying steel that are not mentioned above, which represent contamination resulting from smelting.

机译：公开了一种高强度多相钢，其具有最小拉伸强度为750 MPa，并且优选地具有用于冷轧或热轧钢带，特别是用于轻型车辆构造的双相显微组织。高强度多相钢具有改善的成形性能，并且屈服点与抗拉强度的比率至多为73％。高强度多相钢的质量％为：C0.075〜0.105;质量％：C0.075〜0.105。 Si0.600至0.800; Mn1.000至0.700; Cr0.100至0.480; Al0.010至0.060; N 0.00200.0120; S0.0030; Nb 0.005至0.050; Ti0.0050至0.050; B0.0005至0.0040; Mo0.200;铜0.040％; Ni剩余铁含量为Ni0.040％，包括上述未提及的伴随钢的典型元素，代表冶炼产生的污染。

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公开/公告号EP3027784B1

专利类型
公开/公告日2017-08-30

原文格式PDF
申请/专利权人 SALZGITTER FLACHSTAHL GMBH;
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申请/专利号EP20140741788
发明设计人 SCHULZ THOMAS;CALCAGNOTTO MARION;KLUGE SASCHA;WESTHÄUSER SEBASTIAN;KLINKBERG TOBIAS;MICHAELIS THORSTEN;
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申请日2014-05-27
分类号C22C38;C21D8/02;C22C38/02;C22C38/04;C22C38/06;C22C38/22;C22C38/24;C22C38/26;C22C38/28;C22C38/32;
国家 EP
入库时间 2022-08-21 14:05:54

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