基本信息:
- 专利标题： 一种低温抗SSCC液化气体汽车罐车罐体用钢的生产方法
- 专利标题（英）：Production method of low-temperature anti-SSCC steel for liquefied gas automobile tank car body
- 申请号：CN201811112600.1 申请日：2018-09-25
- 公开(公告)号：CN109161800A 公开(公告)日：2019-01-08
- 发明人： 刘立彪 , 罗登 , 姚建华 , 张计谋 , 刘丹 , 杨文志 , 赵军
- 申请人： 湖南华菱湘潭钢铁有限公司
- 申请人地址： 湖南省湘潭市岳塘区钢城路
- 专利权人： 湖南华菱湘潭钢铁有限公司
- 当前专利权人： 湖南华菱湘潭钢铁有限公司
- 当前专利权人地址： 湖南省湘潭市岳塘区钢城路
- 代理机构： 长沙新裕知识产权代理有限公司
- 代理人： 李由
- 主分类号： C22C38/02
- IPC分类号： C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/12 ; C22C38/14 ; C22C38/08 ; C22C38/16 ; C21D8/02 ; C21D1/28
The invention discloses a production method of low-temperature anti-SSCC steel for a liquefied gas automobile tank car body. The production method comprises the following process flows: hot metal pretreatment, converter smelting, LF refining, vacuum degassing treatment, continuous casting, slab heating, rolling, ACC cooling, normalizing and tempering heat treatment; and the steel comprises the following chemical components in percentage by mass: 0.16-0.19 of C, 0.15-0.35 of Si, 1.40-1.60 of Mn, less than or equal to 0.008 of P, less than or equal to 0.003 of S, 0.020-0.050 of Alt, 0.020-0.050of Nb, 0.030-0.070 of V, 0.35-0.60 of Ni, 0.2-0.3 of Cu, 0.010-0.020 of Ti, less than or equal to 2.0 ppm of H, less than or equal to 0.005 of Sn, less than or equal to 0.020 of the sum of Sn, Bi, Pb,As and Sb, and the balance of Fe and inevitable impurities. The steel produced in the invention has a structure of ferrite and pearlite, has advantages of high strength, low yield-strength ratio, good low-temperature toughness and good SSCC resistance, and can be used for manufacturing a liquefied gas automobile tank car body.
公开/授权文献:
- CN109161800B 一种低温抗SSCC液化气体汽车罐车罐体用钢的生产方法 公开/授权日：2020-06-12
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 |
| --------C22C38/02 | .含硅的 |