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 ›› 2008, Vol. 29 ›› Issue (3): 57-59.

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Structure and Properties of 5 mm T510L High Strength Steel Strip Produced by FTSR Process

Ai  Xinghui1,  Feng  Yunli2,  Yang   Kun2,  Yang  Xiaocai2   

  1. 1 Metallurgic Department,Tangshan Scientific and Technical Profession Technique College,Tangshan 063001;
    2 Metal Material Engineering Department,Hebei Polytechnic University,Tangshan 063009
  • Received:2007-12-11 Online:2008-06-01 Published:2022-12-22

FTSR热轧5 mm T510L高强度钢板的组织和性能

艾星辉1,  冯运莉2,  杨 琨2 ,  杨晓彩2   

  1. 1唐山科技职业技术学院冶金系，唐山063001;
    2河北理工大学金属材料工程系，唐山063009
  • 作者简介:艾星辉(1964-),女，高级讲师，河北机电学院毕业，超细组织钢新品种开发。
  • 基金资助:
    唐山市科学技术研究与发展计划资助项目 (04204501C-227)

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Abstract: The 5 mm T510L(0.20C,1. 17Mn)high strength steel strip was produced by FTSR(Flexible Thin Slab Rolling):hot metal pretreatment- 150tLD-LF-85 mm slab casting - control continuous rolling process.Test results showed that the structure of 5 mm T510L strip was fine and uniform with average grain size7.0 μm; the tensile strength of steel was 625 MPa,elongation 28%,tough-brittle transition temperature -60 ℃;and the steel strip had excellent form- ability with strain-hardening exponent n value 0.210.

Key words: FTSR Process, T510L High Strength Steel Strip, Structure, Mechanical Properties, Formability

摘要： 5 mm T510L(0.20%C、1.17%Mn)高强度钢板由FISR(Flexible Thin Slab Rolling):铁水预处理-150 t转炉-LF-85 mm板坯连铸.控制连轧工艺生产。试验结果表明,5 mm T510L钢板组织细小、均匀,平均晶粒度7.0μm,抗拉强度625 NPa,伸长率28%,韧脆转变温度为-60℃,应变硬化指数n值为0.210,具有良好的成形性。

关键词: FTSR工艺, T510L高强度钢板, 组织, 力学性能, 成形性

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