ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2014, Vol. 35 ›› Issue (2): 68-70.

• 组织和性能 • 上一篇    

不锈钢板坯的高温力学性能及连铸二次冷却工艺中的应用

谢长川1,韩丽娜1,胡波1,崔立新2,艾健3   

  1. 1. 中冶连铸技术工程股份有限公司,武汉 430073 ;
    2. 北京科技大学冶金与生态工程学院,北京 100083 ;
    3. 泰山钢铁公司不锈钢厂,莱芜 271100 ;
  • 收稿日期:2013-10-23 出版日期:2014-04-01 发布日期:2022-09-14
  • 作者简介:谢长川(1976-),男,博士,高级工程师,北京科技大学(本科)毕业,连铸机设计和新产品开发。

High Temperature Properties of Slab of Stainless Steels and Application in Concasting Secondary Cooling Process

Xie Changchuan1 , Han Lina1,  Hu Bo1,  Cui Lixin2,  Ai Jian3   

  1. 1. CCTEC Engineering Co Ltd, Wuhan 430073;
    2. Metallurgical and Ecological Engineering School, University of Science and Technology, Beijing 100083;
    3. Stainless Steel Works, Taishan Iron and Steel Co, Laiwu 271100
  • Received:2013-10-23 Published:2014-04-01 Online:2022-09-14

摘要: 泰山不锈钢厂采用60 t电弧炉-GOR底吹转炉精炼-160 mm×1600 mm板坯连铸的工艺流程冶炼不锈钢。通过Gleeble-1500D热模拟试验机试验研究了奥氏体不锈钢201(6.54Mn-16.71Cr-3.62Ni)和J4(8.93Mn-14.84Cr-1.08Ni-1.25Cu),铁素体不锈钢430(16.29Cr)和马氏体不锈钢410S(13.5Cr)连铸板坯的高温力学性能。结果表明,各不锈钢的第Ⅲ脆性温度区分别为201钢-665~990℃,J4钢-600~950℃,430钢-600~700℃和410S钢-720~930℃;201和J4钢采用较弱二次冷却,矫直温度分别控制为≥1010℃和≥995℃,430钢用较强二次冷却,矫直温度900~950℃;410S钢用较弱二次冷却,矫直温度≥980℃。

关键词: 奥氏体, 铁素体, 马氏体, 不锈钢, 板坯, 高温性能, 连铸, 二次冷却

Abstract: The production flow sheet for stainless steels steelmaking at Taishan Steel Works is 60 t EAF-GOR bottom blowing converter refining-160 mm x 1600 mm slab casting process. With using Gleeble-1500D thermal simulation testing machine, the high temperature properties of casting slab of austenite stainless steel 201 ( 6.54Mn-16.71Cr-3.62Ni) and steel J4 (8.93Mn-14.84Cr-l.08Ni-l.25Cu) , ferrite stainless steel 430 ( 16.29Cr) and martensite stainless steel 410S (13.5Cr) have been tested and studied. Results show that the Ⅲ brittle temperature region of each stainless steel is respectively steel 201-665 ~990 ℃,steel J4- 600~950 ℃ steel 430- 600~700 ℃ and steel 410S-720~930 ℃ ; It is available for steel 201 and J4 to use weaker secondary cooling and to straighten respectively at ≥1010 ℃ and ≥995 ℃, for steel 430 to use stronger secondary cooling and to straighten at 900~950 °C, and for steel 410S to use weaker secondary cooling and to straighten at ≥ 980 °C.

Key words: Austenite, Ferrite, Martensite, Stainless Steel, Slab, High Temperature Properties, Concasting, Secondary Cooling