
基本信息:
- 专利标题: 一种耐酸腐蚀的调质高强度压力容器用钢及生产方法
- 专利标题(英):Acid corrosion resistant quenching and tempering high-strength pressure vessel steel and production method
- 申请号:CN201810257244.6 申请日:2018-03-27
- 公开(公告)号:CN108342649A 公开(公告)日:2018-07-31
- 发明人: 刘文斌 , 王宪军 , 李书瑞 , 杨秀利 , 战国锋 , 陈颜堂 , 郭斌
- 申请人: 武汉钢铁有限公司
- 申请人地址: 湖北省武汉市青山区厂前2号门
- 专利权人: 武汉钢铁有限公司
- 当前专利权人: 武汉钢铁有限公司
- 当前专利权人地址: 湖北省武汉市青山区厂前2号门
- 代理机构: 湖北武汉永嘉专利代理有限公司
- 代理人: 段姣姣
- 主分类号: C22C38/02
- IPC分类号: C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/50 ; C22C38/42 ; C22C38/44 ; C21D8/00 ; C21C7/00
Acid corrosion resistant quenching and tempering high-strength pressure vessel steel comprises the components of, by weight, 0.05%-0.10% of C, 0.15%-0.50% of Si, 0.50%-1.20% of Mn, 0-0.008% of P, 0-0.002% of S, 0.015%-0.045% of Als, 0.20%-0.80% of Ni, 0.010%-0.030% of Ti, 0.22%-0.50% of Cu, 0.50%-1.50 % of Cr, 0.23%-0.50% of Mo and 0.002%-0.006% of Ca. A production method comprises the steps of molten iron pretreatment and converter smelting, LF furnace external refining, RH vacuum treatment, tapping and continuous casting blank forming, segmented hot rolling, quenching and tempering. According to the acid corrosion resistant quenching and tempering high-strength pressure vessel steel, after composition design, inclusion control, rolling and heat treatment, yield strength is larger than orequal to 450 MPa, tensile strength is larger than or equal to 540 MPa, elongation is larger than or equal to 20%, -40 DEG C KV2 is larger than or equal to 60 J, no hydrogen induced cracking phenomenon is generated, and stress corrosion cracking is not lower than 0.70 sigma s.
公开/授权文献:
- CN108342649B 一种耐酸腐蚀的调质高强度压力容器用钢及生产方法 公开/授权日:2020-08-04
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 |