基本信息:
- 专利标题： 一种屈服强度800MPa超高强带钢及其制备方法
- 专利标题（英）：Ultrahigh strength strip steel with yield strength being 800MPa and preparation method thereof
- 申请号：CN201710581042.2 申请日：2017-07-17
- 公开(公告)号：CN107460404A 公开(公告)日：2017-12-12
- 发明人： 杨丽芳 , 孙力 , 安会龙 , 熊自柳 , 杨士弘 , 刘义 , 张鹏 , 梁媛媛 , 刘天武 , 张涛
- 申请人： 河钢股份有限公司
- 申请人地址： 河北省石家庄市体育南大街385号
- 专利权人： 河钢股份有限公司
- 当前专利权人： 河钢股份有限公司
- 当前专利权人地址： 河北省石家庄市体育南大街385号
- 代理机构： 石家庄冀科专利商标事务所有限公司
- 代理人： 曹淑敏
- 主分类号： C22C38/04
- IPC分类号： C22C38/04 ; C22C38/12 ; C22C38/14 ; C22C38/02 ; C21D8/02 ; C21D1/26
The invention discloses an ultrahigh strength strip steel with the yield strength being 800MPa and a preparation method of the ultrahigh strength strip steel. The ultrahigh strength strip steel is prepared from, by mass, 0.05-0.10% of C, 1.1-1.5% of Mn, 0.025-0.065% of Nb, 0.06-0.15% of Ti, 0.30-0.45% of Si, 0.015% or less of S, 0.02% or less of P and the balance iron and inevitable impurities. The preparation method comprises the working procedures of hot rolling, acid picking, cold rolling, annealing and leveling. According to ingredient design, low C and Mn are adopted, no hardenable elements such as Cr and Mo are added, only a small amount of micro-alloying elements such as Nb and Ti is added, the special technologies such as hot rolling, cold rolling and annealing are adopted in a matched mode, the performance is controlled by controlling strip steel grain size, educt and separation-out time, the yield strength of the strip steel is larger than or equal to 800 MPa, the percentage elongation is larger than or equal to 15%, the machining performance is good, and the advantage of the production cost is huge.
公开/授权文献:
- CN107460404B 一种屈服强度800MPa超高强带钢及其制备方法 公开/授权日：2019-05-17
IPC结构图谱:
| C | 化学；冶金 |
| --C22 | 冶金（铁的冶金入C21）；黑色或有色金属合金；合金或有色金属的处理 |
| ----C22C | 合金 |
| ------C22C38/00 | 铁基合金，例如合金钢 |
| --------C22C38/04 | .含锰的 |