Practice on Production of Gear Steel 20CrMoH by Converter- Bloom Concasting Process at Panzhihua Iron and Steel

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Practice on Production of Gear Steel 20CrMoH by Converter- Bloom Concasting Process at Panzhihua Iron and Steel

更新时间：2026-01-21

- Practice on Production of Gear Steel 20CrMoH by Converter- Bloom Concasting Process at Panzhihua Iron and Steel
- Special Steel Vol. 26, Issue 4, Pages: 36-37(2005)
- 作者机构：
  
  攀枝花钢铁研究院,攀枝花,617000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：02 December 2004，
  
  Online First：17 May 2023，
  
  Published：17 May 2005
- 稿件说明：
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蒲学坤. Practice on Production of Gear Steel 20CrMoH by Converter- Bloom Concasting Process at Panzhihua Iron and Steel[J]. Special Steel, 2005, 26(4): 36-37.
DOI：

蒲学坤. Practice on Production of Gear Steel 20CrMoH by Converter- Bloom Concasting Process at Panzhihua Iron and Steel[J]. Special Steel, 2005, 26(4): 36-37. DOI：

摘要

攀钢采用120t顶底复吹转炉→LF+RH精炼→大方坯连铸(280mm×380mm)→热轧工艺生产规格为Φ25～60mm的20CrMoH齿轮钢

检验结果表明

成品检验结果为成分(%):C0.19～0.22

Mn0.54～0.58

Cr0.97～1.03

Mo0.18～0.19

P0.019～0.028

S0.006～0.012

ΔHRC J9≤6、J15≤9

]

≤20×10

-6

B类夹杂≤1.5级

D类夹杂≤1.0级

机械性能和低倍组织均满足标准要求。

Abstract

The Φ25 ~ 60 mm round bars of gear steel 20CrMoH have been produced at Panzhihua Iron and Steel by 120 t top and bottom combined blown converter - LF + RH refining - 280 nun x 380 mm bloom concasting - hot rolling process. The examination results showed that the products analysis was 0.19- 0.22C

0.54 ~ 0.58Mn

0.97 - 1.03Cr

0.18〜0.19Mo

0.019~0.028P

0.006~0.012S; the hardenability band AHRC J9 was ≤6

AHRC J15≤9

]

≤20 x 10

-6

inclusion rating number- type A

B W1.5 and type C

D w 1; and the mechanical properties and macrostructure all met requirement of standard.

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