公开(公告)号：US20120070330A1

公开(公告)日：2012-03-22

申请号：US13123649

申请日：2008-11-05

申请人： Masashi Ishii ,  Sven Leonhardt ,  Yoshitaka Okitsu ,  Klaus Brokmeier ,  Georg Frommeyer ,  Ursula Frommeyer ,  Astrid Frommeyer

发明人： Masashi Ishii ,  Sven Leonhardt ,  Yoshitaka Okitsu ,  Klaus Brokmeier ,  Georg Frommeyer ,  Ursula Frommeyer ,  Astrid Frommeyer

IPC分类号： C22C38/58 ,  C22C38/44 ,  B21B1/02 ,  C22C38/42

CPC分类号： C22C38/02 ,  B62D25/04 ,  B62D29/007 ,  C21D2211/001 ,  C22C38/001 ,  C22C38/04 ,  C22C38/06 ,  C22C38/38 ,  C22C38/42 ,  C22C38/44 ,  C22C38/50 ,  C22C38/58

摘要： A high-strength steel sheet comprises, by weight, not less than 0.25% and not more than 0.5% of C, not less than 4% and not more than 14% of Mn, not less than 6.5% and not more than 9.5% of Cr, and not less than 0.3% and not more than 3% of Si. The high-strength steel sheet satisfies the following formulas 1 and 2 and mainly consists of austenite, and the high-strength steel sheet has yield strength of not less than 1000 MPa and total elongation of not less than 20%. 12≦2.0Si+5.5Al+Cr+1.5Mo≦25   (1) 13 ≦30C+0.5Mn+0.3Cu+Ni+25N≦17   (2) (Each element symbol in the above formulas indicates the content (weight %) of the element)

摘要翻译： 高强度钢板按重量计含有不少于0.25％且不大于0.5％的C，不小于4％和不超过14％的Mn，不小于6.5％和不超过9.5％ 的Cr，且不小于0.3％且不大于3％的Si。 高强度钢板满足下列公式1和2，主要由奥氏体组成，高强度钢板的屈服强度不小于1000MPa，总伸长率不低于20％。 12＆nlE; 2.0Si + 5.5Al + Cr + 1.5Mo＆nlE; 25（1）13＆nlE; 30C + 0.5Mn + 0.3Cu + Ni + 25N＆lt; 17（2）（上式中的每个元件符号表示含量（重量％ ）的元素）

公开(公告)号：US09267193B2

公开(公告)日：2016-02-23

申请号：US13123649

申请日：2008-11-05

申请人： Masashi Ishii ,  Sven Leonhardt ,  Yoshitaka Okitsu ,  Klaus Brokmeier ,  Georg Frommeyer ,  Ursula Frommeyer ,  Astrid Frommeyer

发明人： Masashi Ishii ,  Sven Leonhardt ,  Yoshitaka Okitsu ,  Klaus Brokmeier ,  Georg Frommeyer

IPC分类号： C22C38/58 ,  C22C38/02 ,  B62D25/04 ,  B62D29/00 ,  C22C38/00 ,  C22C38/04 ,  C22C38/06 ,  C22C38/38 ,  C22C38/42 ,  C22C38/44 ,  C22C38/50

CPC分类号： C22C38/02 ,  B62D25/04 ,  B62D29/007 ,  C21D2211/001 ,  C22C38/001 ,  C22C38/04 ,  C22C38/06 ,  C22C38/38 ,  C22C38/42 ,  C22C38/44 ,  C22C38/50 ,  C22C38/58

摘要： A high-strength steel sheet comprises, by weight, not less than 0.25% and not more than 0.5% of C, not less than 4% and not more than 14% of Mn, not less than 6.5% and not more than 9.5% of Cr, and not less than 0.3% and not more than 3% of Si. The high-strength steel sheet satisfies formulas 1 and 2, formula (1) being 12≦2.0Si+5.5Al+Cr+1.5Mo≦25 and formula (2) being 13≦30C+0.5Mn+0.3Cu+Ni+25N≦17, and mainly consists of austenite, and the high-strength steel sheet has yield strength of not less than 1000 MPa and total elongation of not less than 20%. In formulas 1 and 2, each element in the above formulas indicates the content, in weight %, of the element.

摘要翻译： 高强度钢板按重量计含有不少于0.25％且不大于0.5％的C，不小于4％和不超过14％的Mn，不小于6.5％和不超过9.5％ 的Cr，且不小于0.3％且不大于3％的Si。 高强度钢板满足公式1和2，式（1）为12＆nlE; 2.0Si + 5.5Al + Cr + 1.5Mo＆nlE; 25和式（2）为13＆lt; 1E; 30C + 0.5Mn + 0.3Cu + Ni + 25N＆ ; 17，主要由奥氏体组成，高强度钢板的屈服强度不小于1000MPa，总伸长率不小于20％。 在式1和式2中，上式中的每个元素表示元素的含量（以重量％计）。