Development and Application of High Strength Corrosion Resistant and Wear Resistant Steel HNM450 in Complex Environment

陈振业; 齐建军; 龙杰; 陈子刚; 杨浩; 吕建会

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Development and Application of High Strength Corrosion Resistant and Wear Resistant Steel HNM450 in Complex Environment

更新时间：2026-01-21

- Development and Application of High Strength Corrosion Resistant and Wear Resistant Steel HNM450 in Complex Environment
- Special Steel Vol. 42, Issue 6, Pages: 50-54(2021)
- 作者机构：
  
  1. 河钢集团钢研总院,石家庄,050000
  2. 东北大学轧制技术及连轧自动化国家重点实验室,沈阳,110819
  3. 河钢集团舞阳钢铁有限责任公司,平顶山,462500
  4. 河钢集团邯郸钢铁集团有限公司,邯郸,056000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：25 March 2021，
  
  Online First：03 January 2022，
  
  Published：03 January 2021
- 稿件说明：
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陈振业, 齐建军, 龙杰, et al. Development and Application of High Strength Corrosion Resistant and Wear Resistant Steel HNM450 in Complex Environment[J]. Special Steel, 2021, 42(6): 50-54.
DOI：

陈振业, 齐建军, 龙杰, et al. Development and Application of High Strength Corrosion Resistant and Wear Resistant Steel HNM450 in Complex Environment[J]. Special Steel, 2021, 42(6): 50-54. DOI：

摘要

研发了满足磨煤机复杂服役工况的高强度耐磨钢HNM450。其抗拉强度1727 MPa，断后伸长率14.5%，平均HBW硬度值522，-20 ℃冲击功38 J，具有良好的强度、塑性和低温韧性。模拟磨煤机实际服役工况的腐蚀磨损对比试验结果显示：HNM450产品200 ℃高温pH=5的弱酸性潮湿环境和200 ℃高温，pH=9的弱碱性潮湿环境下的耐腐蚀耐磨性能均明显优于HARDOX450钢。HNM450钢已经用于下游用户磨煤机的制造，实现了对进口耐磨钢HARDOX450的国产化替代。

Abstract

The high-strength wear-resisting steel HNM450 to meet the complex working conditions of the coal mill has been developed. Its tensile strength is 1727 MPa

elongation after fracture is 14.5%

average HBW hardness number is 522

and impact energy at -20℃ is 38J

it has good strength

plasticity and low temperature toughness.The comparative test results of corrosion and wear simulating the actual working condition of the coal mill show that the corrosion and wear resistance of HNM450 products at 200 ℃ high temperature

pH=5 in the weak acidic humid environment and at 200 ℃ high temperature

pH=9 in the weak alkaline humid environment is obviously better than that of HARDOX450 steel. HNM450 steel has been used in the manufacture of coal mills for downstream users

realized the domestic substitution of imported HARDOX450 steel.

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