Production Practice of Wheel Body Steel 40Mn2H-S for Engineering Machinery by EAF-LF (VD)-CC Flow Sheet

杨振国; 李法兴; 孙永喜; 杜国强; 刘永昌

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Production Practice of Wheel Body Steel 40Mn2H-S for Engineering Machinery by EAF-LF (VD)-CC Flow Sheet

更新时间：2026-01-21

- Production Practice of Wheel Body Steel 40Mn2H-S for Engineering Machinery by EAF-LF (VD)-CC Flow Sheet
- Special Steel Vol. 32, Issue 2, Pages: 46-48(2011)
- 作者机构：
  
  1. 北京科技大学冶金与生态工程学院,北京,100083
  2. 莱芜钢铁集团股份有限公司,莱芜,271105
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：23 November 2010，
  
  Online First：10 November 2022，
  
  Published：10 November 2011
- 稿件说明：
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杨振国, 李法兴, 孙永喜, et al. Production Practice of Wheel Body Steel 40Mn2H-S for Engineering Machinery by EAF-LF (VD)-CC Flow Sheet[J]. Special Steel, 2011, 32(2): 46-48.
DOI：

杨振国, 李法兴, 孙永喜, et al. Production Practice of Wheel Body Steel 40Mn2H-S for Engineering Machinery by EAF-LF (VD)-CC Flow Sheet[J]. Special Steel, 2011, 32(2): 46-48. DOI：

摘要

莱钢特钢通过50 t EAF-LF(VD)-260 mm×300 mm方坯连铸-轧制工艺生产轮体用钢40Mn2H-S(%:0.39～0.41C、0.21～0.26Si、1.55～1.60Mn、0.025～0.035Al)Φ80～130 mm棒材。EAF炉料为50%铁水+废钢

出钢过程加1.5～2.5 kg/t

钢

钢芯铝

LF出钢喂Al线调整[Al

]

为0.020%～0.040%

连铸全保护浇铸

(M+F)EMS电磁搅拌

使该钢中[O

]

、[N

]

平均值达14.5×10

-6

、72×10

-6

低倍组织≤1.0级

非金属夹杂物A、B≤1.5级、C、D≤1.0级

晶粒度≥7级、末端淬透性及力学性能等指标均满足用户要求。

Abstract

The Φ80 〜130 mm round bar products of wheel body steel 40Mn2H-S (% : 0. 39 ~0. 41C

0. 21 -0. 26Si

I. 55 ~ 1. 60Mn

0. 025 ~0. 035Al) are produced by 50t EAF-LF (VD)-260 mm x300 mm continuous casting-rolling process at Laiwu Special Steel. With EAF charging-50% hot metal + scrap

adding 1. 5 ~2. 5 kg/t steel aluminium cladding steel during taping

adjusting [Al

]

in 0. 020% ~0. 040% during LF taping by feeding Al wire

whole casting process with shielding atmosphere and casting with ( M + F) EMS

the average of [ 0

]

and [ N

]

are respectively lowered to 14. 5 x 10

-6

and 72 x 10

-6

the rating of macrostructure of steel ≤1. 0

rating of nonmetallic inclusions A and B ≤1. 5

C and D ≤1.0

grain size rating ≥7

the terminal hardenability and mechanical properties of steel all meet the req

uirement of user.

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