ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2005, Vol. 26 ›› Issue (5): 57-59.

• 工艺技术 • 上一篇    下一篇

CSP生产X60管线钢的化学成分和轧制工艺对混晶的影响

何建中1,刘雅政1,常大勇1,李 扬1,刘李斌1,王雪莲2   

  1. 1. 北京科技大学材料科学与工程学院,北京 100083;
    2. 包钢薄板坯连铸连轧厂,包头 014010;
  • 收稿日期:2005-04-18 出版日期:2005-10-01 发布日期:2023-04-04
  • 作者简介:何建中(1965-),男,博士研究生。从事冶金和材料研究管理。工作单位:包头钢铁公司,包头014010。

Effect of Chemical Composition and Rolling Process on Mixed Grain of CSP Produced X60 Pipeline Steel

He Jianzong1 , Liu Yazheng1 , Chang Dayong1 , Li Yang1 , Liu Libin1 , Wang Xuelian2   

  1. 1. School of Materials and Engineering,University of Science and Technology,Beijing 100083;
    2. Baotou Iron and Steel(Group)Co.,Ltd., Baotou 014010;
  • Received:2005-04-18 Published:2005-10-01 Online:2023-04-04

摘要: 包钢X60管线钢(%:0.04~0.06C,1.24~1.30Mn,0.04~0.05Nb,0.006~0.008Ti,0.015~0.030V)经6道次CSP(紧凑式带材生产技术)轧制后存在严重的混晶。通过不加V,成分改为(%):0.06~0.08C,1.24~1.30Mn,0.02~0.04Nb,0.007~0.010Ti,并第1、2道的压下量分别由≥39%和≥36%提高到≥42%和≥40%,为奥氏体再结晶的充分进行提供了温度和能量条件,消除混晶组织,钢的晶粒尺寸为5.6~8.0μm

关键词: CSP工艺, 混晶组织, V, 压下量

Abstract: There were obvious mixed grain structure in X60 pipeline steel(0.04~0.06C,1.24~1.30Mn,0.04~0.05Nb,0.006~0.008Ti,0.015~0.030V)produced by 6 pass CSP(compact strip production)rolling. The mixed grain structure was climinated and the grain sizes in steel were 5.6~8.0 pm by no V added,modifed the composition-0.06~0.08C,1.24~1.30Mn,0.02~0.04Nb,0.007~0.010Ti,and the reduction ratio at first and second pass increased respectively to ≥42% and ≥40% from normal ≥39% and ≥36% to provide temperature and energy conditions for austenite complete recrystallization.

Key words: CSP Process, Mixed Grain Structure, V, Reduction Ratio