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 ›› 2019, Vol. 40 ›› Issue (1): 1-3.

所属专题: 钢板

• 试验研究 •    下一篇

新型V-Ti-B微合金化调质Q690E钢板的开发

陈振业1,2 王会岭3, 赵燕青2 ,杨浩 ,陈起3   

  1. 1.东北大学轧制技术及连轧自动化国家重点实验室,沈阳110819 ;
    2,河钢集团钢研总院工艺研究所,石家庄050023 ;
    3.河钢集团舞阳钢铁有限责任公司科技部,平顶山462500
  • 收稿日期:2018-08-16 出版日期:2019-02-01 发布日期:2022-05-23
  • 作者简介:陈振业(1983-),男,博士生,高级工程师,2006年武汉科技大学(本科)毕业,中厚板新产品开发及新工艺研究。

Research and Development of New V-Ti-B Microalloyed Quenching and Tempering Q690E Steel Plate

Chen Zhenye1,2 , Wang Huiling3 , ZhaoYanqing2 ,Yang Hao2 , Chen Qi3   

  1. 1 State Key Laboratory of Rolling Technology and Automation, Northeastern University, Shenyang 110819;
    2 The Centre Iron and Steel technology research institute of HBIS. Shijiazhuang 050023 ;
    3 Department of Science and Technology, Hebei Iron and Steel Group, Wuyang Iron and Steel Co Ltd, Pingdingshan 462500
  • Received:2018-08-16 Published:2019-02-01 Online:2022-05-23

摘要: 通过低碳及"Mn-Cr-Mo-B-V-Ti"微合金化成分设计及轧制、热处理工艺选择,成功开发出工程机械用Q690E钢板(/%:0.10~0. 15 C,0. 20~0.40 Si,≤0.015 P,≤0.005 S,0.30~0.40 Cr,0.20~0. 30 Mo,0.035~0.045 V,0.01~0.02 Ti,0.001~0.002 B)。Q690E钢板880~910℃淬火+570~610℃回火的微观组织为回火索氏体,屈服强度811~891 MPa,抗拉强度852~938 MPa,-40℃冲击功在132~167 J,满足GB/T16270-2009对Q690E工程机械用钢力学性能的要求,结果满足用户严格使用要求,同时降低了生产成本。

关键词: 低成本, 调质, 热处理, 力学性能

Abstract: The Q690E steel plate for engineering machinery (/% :0. 10 ~0. 15 C,0. 20 - 0. 40 Si, W0. 015 P, W 0.005 S,0.30 ~ 0. 40 Cr,0. 20 ~ 0. 30 Mo,0. 035 ~ 0. 045 V,0. 01 ~ 0. 02 Ti,0. 001 ~ 0. 002 B) has been developed through low carbon and a “Mn-Cr-Mo-B-V-Ti” microalloyed components design, rolling and heat treatment technology selecting. The microstructure of Q690E steel plate guenched at 880 ~910 ℃ + tempered at 570 ~610 ℃ is tempered sorbite with yield strength 811 ~ 891 MPa,tensile strength is 852 -938 MPa and - 40 ℃ impact energy 132 ~ 167J. It ean meet the requirements of GB/T16270-2009 on mechanical properties for Q690E Steel. The result is that, while meeting the increasingly stringent requirements of users,the production costs are reduced.