公开(公告)号：US20140041767A1

公开(公告)日：2014-02-13

申请号：US13985420

申请日：2011-12-29

申请人： Brigitte Hammer ,  Jörg Mertens ,  Günter Stich

发明人： Brigitte Hammer ,  Jörg Mertens ,  Günter Stich

IPC分类号： C21D8/02 ,  C22C38/02 ,  C22C38/28 ,  C22C38/06 ,  C22C38/38 ,  C22C38/32

CPC分类号： C21D8/0268 ,  C21D8/0226 ,  C21D2211/002 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/02 ,  C22C38/06 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38

摘要： A hot-rolled flat steel product having a tensile strength of at least 1100 MPa, good elongation properties, and good deformation properties. The flat steel product is produced from a complex phase steel, which contains, in addition to iron and inevitable impurities (in % by weight), C: 0.13-0.2%, Mn: 1.8-2.5%, Si: 0.70-1.3%, Al: 0.01 to 0.1%, P: up to 0.1%, S: up to 0.01%, Cr: 0.25-0.70%, optionally Mo, the total of the Cr and Mo contents being 0.25-0.7%, Ti: 0.08-0.2%, B: 0.0005-0.005%, and a structure which consists of at the most 10% by volume of residual austenite, 10-60% by volume of martensite, at the most 30% by volume of ferrite and at least 10% by volume of bainite. Also, a method for producing such a flat steel product.

摘要翻译： 拉伸强度为1100MPa以上，伸长性好，变形特性好的热轧扁钢制品。 扁钢产品由复合相钢制成，除了铁和不可避免的杂质（重量％）外，还含有C：0.13-0.2％，Mn：1.8-2.5％，Si：0.70-1.3％， Al：0.01〜0.1％，P：0.1％以下，S：0.01％以下，Cr：0.25〜0.70％，任意Mo，Cr和Mo含量的合计为0.25〜0.7％，Ti：0.08〜0.2 ％，B：0.0005-0.005％，和由最多10体积％的残余奥氏体，10-60体积％的马氏体组成，最多30体积％的铁素体和至少10％的 贝氏体体积 另外，制造这种扁钢制品的方法。