300 mm x360 mm连铸坯生产Φ80 mm非调质钢38MnVS6工艺实践

王春梅; 黄永建; 李双江

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300 mm x360 mm连铸坯生产Φ80 mm非调质钢38MnVS6工艺实践

工艺技术 | 更新时间：2026-01-21

- 300 mm x360 mm连铸坯生产Φ80 mm非调质钢38MnVS6工艺实践
- Process Practice for Production of Φ80 mm Non-Quenched-Tempered Steel 38MnVS6 by 300 mm x 360 mm Continuous Casting Bloom
- 特殊钢 2019年40卷第5期页码：21-23
- 作者机构：
  
  1. 河北科技大学电气工程学院,石家庄,050018
  2. 河钢集团石钢公司,石家庄,050031
  3. 河钢集团钢研总院,石家庄,050023
- 作者简介：
  
  [ "王春梅(1972-)，女，硕士(2005年华中科技大学)，高级工程师，测控和仪器技术开发。" ]
- 基金信息：
- DOI：
  中图分类号：
- 收稿：2019-03-15，
  
  网络首发：2022-05-12，
  
  纸质出版：2019-05-12
- 稿件说明：
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王春梅, 黄永建, 李双江. 300 mm x360 mm连铸坯生产Φ80 mm非调质钢38MnVS6工艺实践[J]. 特殊钢, 2019,40(5):21-23.

王春梅, 黄永建, 李双江. Process Practice for Production of Φ80 mm Non-Quenched-Tempered Steel 38MnVS6 by 300 mm x 360 mm Continuous Casting Bloom[J]. Special Steel, 2019, 40(5): 21-23.
王春梅, 黄永建, 李双江. 300 mm x360 mm连铸坯生产Φ80 mm非调质钢38MnVS6工艺实践[J]. 特殊钢, 2019,40(5):21-23. DOI：

王春梅, 黄永建, 李双江. Process Practice for Production of Φ80 mm Non-Quenched-Tempered Steel 38MnVS6 by 300 mm x 360 mm Continuous Casting Bloom[J]. Special Steel, 2019, 40(5): 21-23. DOI：

摘要

非调质钢38MnVS6（/%:0.36～0.40C

0.50～0.65Si

1.30～1.45Mn

≤0.020P

0.045-0.065S

0.10～0.30Cr

0.015～0. 030Al

≤0.05Mo

0.08～0.12V

0.013～0.019N

0.015～0.025Ti）棒材生产流程为60 t LD-LF-VD-CC-Roll工艺。通过控制LD终点[C

]

≥0.10%

]

≤0.015%;LF精炼渣碱度R和Al

含量分别控制在3.0～4.0和20%～～25%; VD后喂S线

控制钢水[S

]

=0.055%左右;连铸采用低碱度（R=0.65）保护渣;控制终轧温度900℃

轧后棒材缓冷等工艺生产Φ80 mm棒材

产品A类夹杂（粗细）在1.5级

中心疏松1.5级

晶粒度7级

棒材产品性能良好。

Abstract

The production process of non-quenched-tempered steel 38MnVS6 (/% ：0.36 ~ 0.40C

0.50 ~ 0.65Si

1.30~1.45Mn

≤ 0.020P

0.045 ~0.065S

0.10 ~0.30Cr

0.015 ~0.030A1

≤0.05Mo

0.08 ~0.12V

0.013 ~0. 019N

0.015 ~0.025Ti) is 60 t LD-LF-VD-CC-Roll process. In order to produce 80 mm bars

the following methods would be used. The LD end point [C

]

is control above at 0. 01% together with [P

]

below at 0.015%. The basicity of LF refining slag and Al

content are controlled at 3.0 ~ 4. 0 and 20% ~25% respectively. The S line would be fed after VD treatment to ensure [S

]

controlled at 0. 055% into molten steel. The low basicity mould fluxes (R = 0. 65) has been used in continuous casting process. It is necessary to controlled final

temperature of rolling steel at 900 °C

and the 080 mm bar should be slowly cooled after rolling. Through the detection and analysis of 38MnVS6 bar

it was found that class A inclusions (thickness series) is grade 1.5

and the rating of center porosity is 1.5

and the grain size is grade 7. The performance of bar product is very good.

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