Pilot Production of Pipe Line Steel X52 by 120 t BOF-LF-Φ 200 mm Round Bloom Concasting Process

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Pilot Production of Pipe Line Steel X52 by 120 t BOF-LF-Φ 200 mm Round Bloom Concasting Process

更新时间：2026-01-21

- Pilot Production of Pipe Line Steel X52 by 120 t BOF-LF-Φ 200 mm Round Bloom Concasting Process
- Special Steel Vol. 32, Issue 5, Pages: 41-42(2011)
- 作者机构：
  
  攀钢集团研究院有限公司,成都,611731
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：06 April 2011，
  
  Online First：02 November 2022，
  
  Published：02 November 2011
- 稿件说明：
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陈亮. Pilot Production of Pipe Line Steel X52 by 120 t BOF-LF-Φ 200 mm Round Bloom Concasting Process[J]. Special Steel, 2011, 32(5): 41-42.
DOI：

陈亮. Pilot Production of Pipe Line Steel X52 by 120 t BOF-LF-Φ 200 mm Round Bloom Concasting Process[J]. Special Steel, 2011, 32(5): 41-42. DOI：

摘要

由于方圆连铸机浇铸X52管线钢(%:0.14～0.18C、0.30～0.50Si、1.25～1.40Mn、≤0.025P、≤0.025S、0.03～0.06Nb)易发生水口堵塞和难控制铸坯质量

故采用转炉出钢时根据钢中的碳含量加入200～500kg/炉Fe-Al脱氧剂进行脱氧

在LF用高碱度渣(%:≥70CaO、≤5Al

、≤5SiO

、≥5CaF

、≤5MgO、≤0.05N)进行精炼

精炼结束软吹氩≥5 min等技术措施生产X52管线钢。结果表明

LF平均脱硫率37%

钢中S≤0.011%、P≤0.015%

Φ200 mm连铸圆坯表面质量良好

低倍各项评级均小于1.0级。

Abstract

In consideration of easier nozzle clogging and difficult control of bloom quality for casting pipe line steel X52 ( % ： 0.14~0.18C

0.30〜0.50Si

1.25〜1.40Mn

≤0.025P

≤0.025S

0.03~0.06Nb) in casting by square round bloom caster

the pipe line steel X52 is produced with using the technoiogy including according to carbon content in liquid adding 200 ~ 500 kg/heat Fe-Al deoxidizer at tapping of BOF

refining by high basicity slag (% :%:≥70CaO、≤5Al

、≤5SiO

、≥5CaF

、≤5MgO、≤0.05N) in LF process

and soft blowing argon for 5 min after refining. Results show that the average desulphurization rate is 37%

in steel the S ≤0.011 % and P ≤0.015%

the surface quality of Φ200 mm round bloom is nice and the rating of each item of macro-etch test is less than rating 1.0

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