Production Practice of 120 t converter-LF Refining Microalloy Steel 48MnV for Hot forging at Benxi Iron and Steel

张东红; 卢秉军

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Production Practice of 120 t converter-LF Refining Microalloy Steel 48MnV for Hot forging at Benxi Iron and Steel

更新时间：2026-01-21

- Production Practice of 120 t converter-LF Refining Microalloy Steel 48MnV for Hot forging at Benxi Iron and Steel
- Special Steel Vol. 26, Issue 3, Pages: 59-60(2005)
- 作者机构：
  
  本溪钢铁(集团)特殊钢有限责任公司,本溪,117001
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：24 December 2004，
  
  Online First：30 May 2023，
  
  Published：30 May 2005
- 稿件说明：
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张东红, 卢秉军. Production Practice of 120 t converter-LF Refining Microalloy Steel 48MnV for Hot forging at Benxi Iron and Steel[J]. Special Steel, 2005, 26(3): 59-60.
DOI：

张东红, 卢秉军. Production Practice of 120 t converter-LF Refining Microalloy Steel 48MnV for Hot forging at Benxi Iron and Steel[J]. Special Steel, 2005, 26(3): 59-60. DOI：

摘要

本钢采用铁水预处理-120t转炉吹炼-LF精炼-4.8t铸锭-800轧机流程生产Φ150 mm 的热锻用非调质钢48MnV(%:0.42～0.47C

0.98～1.18Mn

0.06～0.10V

0.008～0.035S

≤0.025P)。LF 精炼时加 N-Mn 合金调整钢中N 含量，吹氩，精炼后喂Si-Ca线。经分析，钢材中氢含量(0.6～1)×10

-6

氧含量(8～15)x10

-6

氮含量(108～149)×10

⁶

轧材的力学性能为抗张强度σ

815～880 MPa

屈服强度σ

490～587 MPa

延伸率δ

15%～21%

断面收缩率ψ32%～44%

冲击值a

40～54 J/cm²

满足标准要求。

Abstract

The Φ150 mm microalloy steel 48MnV (0.42～0.47C

0.98～1. 18Mn

0.06～0. 10V

0.008～0.035S

≤0.025P)was produced by the flow sheet: hot metal pretreatment- 120t converter blow melting- LF refining- 4.8t ingot ca- sting- 800 mill rolling for hot forging at Benxi Steel. The nitrogen content in steel was trimmed by adding N-Mn alloy with argon stiring during LF refining

after refining feeding Si-Ca wire. The analysis results showed that hydrogen content in steel was(0.6～1)×10

⁶

oxygen content (8～15)×10

⁶ and nitrogen content (108～149)×10

⁶;The mechanical proper ties were tensile strengtho 815～880 MPa

yield strength σ

490～587 MPa

elongation ð

15%～21%

reduction of area ψ32%～44%

impact

n value a

40～54 J/cm² to meet the requirement of standard.

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