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

何建中; 刘雅政; 常大勇; 李扬; 刘李斌; 王雪莲

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

更新时间：2026-01-21

- Effect of Chemical Composition and Rolling Process on Mixed Grain of CSP Produced X60 Pipeline Steel
- Special Steel Vol. 26, Issue 5, Pages: 57-59(2005)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：18 April 2005，
  
  Online First：04 April 2023，
  
  Published：04 April 2005
- 稿件说明：
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何建中, 刘雅政, 常大勇, et al. Effect of Chemical Composition and Rolling Process on Mixed Grain of CSP Produced X60 Pipeline Steel[J]. Special Steel, 2005, 26(5): 57-59.
DOI：

何建中, 刘雅政, 常大勇, et al. Effect of Chemical Composition and Rolling Process on Mixed Grain of CSP Produced X60 Pipeline Steel[J]. Special Steel, 2005, 26(5): 57-59. DOI：

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

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.

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