Mechanical Properties and Corrosion Resistance of a Novel Economic Mining Chain Steel

Yang Chuntian; Zhai Jiaolong; Kong Xiangwei; Gao Lei; Yin Qing; Wu Xiaolin

doi:10.20057/j.1003-8620.2025-00157

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Mechanical Properties and Corrosion Resistance of a Novel Economic Mining Chain Steel

Product Research and Development | 更新时间：2026-03-03

- Mechanical Properties and Corrosion Resistance of a Novel Economic Mining Chain Steel
- Special Steel Vol. 47, Issue 2, Pages: 19-26(2026)
- 作者机构：
  
  江阴兴澄特种钢铁有限公司棒线材研究所，江阴 214400
- 作者简介：
- 基金信息：
- DOI：10.20057/j.1003-8620.2025-00157
  CLC： TG142.1
- Received：27 June 2025，
  
  Published：30 March 2026
- 稿件说明：
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杨纯田,翟蛟龙,孔祥伟等.新型经济型矿用链钢力学与腐蚀性能分析[J].特殊钢,2026,47(02):19-26.

Yang Chuntian,Zhai Jiaolong,Kong Xiangwei,et al.Mechanical Properties and Corrosion Resistance of a Novel Economic Mining Chain Steel[J].Special Steel,2026,47(02):19-26.
杨纯田,翟蛟龙,孔祥伟等.新型经济型矿用链钢力学与腐蚀性能分析[J].特殊钢,2026,47(02):19-26. DOI： 10.20057/j.1003-8620.2025-00157.

Yang Chuntian,Zhai Jiaolong,Kong Xiangwei,et al.Mechanical Properties and Corrosion Resistance of a Novel Economic Mining Chain Steel[J].Special Steel,2026,47(02):19-26. DOI： 10.20057/j.1003-8620.2025-00157.

摘要

常用的矿用链钢23MnNiMoCr54含有较高的Ni、Mo等贵重元素，因而成本较高，限制了广泛应用。本研究通过降低Ni、Mo含量和调控Mn、Cr含量及添加Nb微合金化，设计了一种新型经济性矿用链钢。通过力学性能测试、淬透性试验、均匀腐蚀及应力腐蚀试验，结合链条性能测试，对比分析了新型钢与 23MnNiMoCr54 钢的性能差异。结果表明，新型钢力学性能及淬透性均满足标准的要求；在模拟矿井水中，其均匀腐蚀速率与对照钢无显著差异，应力腐蚀敏感因子及氢脆系数表现更优，抗氢致开裂性能提升；新型钢制成的链条破断负荷达 1 710 kN，疲劳寿命超 6.7×10⁴次，符合 GB/T 12718—2009 中C级链标准。

Abstract

At present the commonly used mining chain steel 23MnNiMoCr54 contains high valuable elements such as Ni and Mo， so the cost is high， which limits its wide application.In this study， a new type of economical mining chain steel was designed by reducing the contents of Ni and Mo， regulating the contents of Mn and Cr， and adding Nb microalloying. Through mechanical property tests， hardenability tests， uniform corrosion and stress corrosion experiments， combined with chain performance tests， the performance differences between the new steel and 23MnNiMoCr54 steel were compared and analyzed. The results show that the mechanical properties and hardenability indexes of the new steel meet the standard requirements. In simulated mine water， its uniform corrosion rate has no significant difference from that of the control steel， while the stress corrosion sensitivity factor and hydrogen embrittlement coefficient are better， and the hydrogen-induced cracking resistance is improved. The chain made of the new steel has a breaking load of 1 710 kN and a fatigue life of more than 6.7×10⁴ cycles， meeting the C-level chain standard in GB/T 12718-2009.

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references

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