Heat Treatment of Metals ›› 2024, Vol. 49 ›› Issue (3): 293-301.DOI: 10.13251/j.issn.0254-6051.2024.03.048

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Research progress on composition and microstructure of marine engineering steel and production process of H-beam steel

Yao Huiqin1, Wang Jingzhong1, Zhao Peilin2, Li Chao2, Yang Xirong1, Liu Xiaoyan1, Luo Lei1   

  1. 1. School of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an Shaanxi 710055, China;
    2. Laiwu Branch, Shandong Iron and Steel Co., Ltd., Jinan Shandong 250000, China
  • Received:2023-08-30 Revised:2024-02-04 Online:2024-03-25 Published:2024-04-24

Abstract: With the implementation of China's marine development strategy, the demand and development of marine engineering steel will become a new growth point in the domestic steel industry. The composition design, microstructure design, and production process research of marine engineering steel have become hot areas of focus for scholars. Due to significant differences in cross-section, there are certain differences in the arrangement of processing technology between steel plates and H-beams used in marine engineering. This paper summarizes the current research status and progress of marine engineering steel, introduces its composition design characteristics of marine engineering steel and alloying mechanism, analyzes the microstructure design characteristics of different intensity levels, and expounds the production process characteristics of marine engineering steel plates and H-beams from three aspects: heating temperature, rolling and cooling process. It also summarizes and prospects the research focus of marine engineering steel production technology.

Key words: marine engineering steel, ingredient design, microstructure design, production process

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