ISSN：1003-8620

CN：42-1243/TF

Governed by: CITIC Pacific Special Steel Group Co., LTD

Sponsored by: Daye Special Steel Co., LTD.

Special Steel ›› 2006, Vol. 27 ›› Issue (5): 51-52.

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Development of V Microalloy HSLA Steel Produced by Thin Slab Casting and Rolling Process

Mao Xinping',Li Chunyan²,Liu Qingyou³,Lin Zhenyuan²,Zhuang Hanzhou²， Cao Jixiang²   

  1. 1 Guangzhou Zhujiang Steel Co Ltd,Guangzhou 510730;
    2 CSP Applying Technology Institute,Technology Center,CISE,Guangzhou 510730;
    3 Central Iron and Steel Institute,Beijing 100081
  • Received:2006-03-08 Online:2006-10-01 Published:2023-04-21

薄板坯连铸连轧流程V微合金化HSLA钢的开发

毛新平¹， 李春艳²， 刘清友³， 林振源²， 庄汉洲²， 高吉祥²   

  1. 1广州珠江钢铁有限责任公司，广州510730;
    2广钢集团技术中心CSP 应用技术研究所，广州510730;
    3钢铁研究总院结构材料研究所，北京100081
  • 作者简介:毛新平(1965-),男，博士，教授级高级工程师，从事薄板 坯连铸连轧技术。

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Abstract: The 1.8～6.3 mm strip of V microalloying HSLA S-F80 steel(0.03~0.07C,1. 10~1.60Mn,≤0.05Nb,≤0.05Ti,0.05～0.25V,0.010～0.035N)is produced by EAF-LF-CSP process at Zhujiang steel.The examination results showed that with recrystallization control rolling process breakdown temperature 1000～1100 ℃,finishing temperature 820～950℃ and coiling temperature 550~650℃,the structure of strip was 3~4 μm ex- tra-fine ferrite + minor pearlite,the size of precipitated phase V(C,N)was 44 nm and the yield strength of strip was 590～620 MPa.

Key words: Thin Slab Casting and Rolling,V Microalloying,High Strength Steel,ExtraFine Grain

摘要： 珠钢采用EAF-LF-CSP 工艺生产1.8~6.3 mmV微合金化HSLA S-F80 钢带(%:0.03~0.07C、 1.10~1.60Mn、≤0.05Nb、≤0.05Ti、0.05~0.25V、0.010~0.035N)。试验结果表明，采用再结晶控制轧制工 艺(开轧温度1000~1100℃,终轧温度820~950℃,卷取温度550～650℃),钢带的组织3～4μm 超细铁素体+少量珠光体，析出相V(C,N) 粒度为44 nm,钢带的屈服强度590～620 MPa。

关键词: 薄板坯连铸连轧, V微合金化, 高强度钢, 超细晶粒

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