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 ›› 2019, Vol. 40 ›› Issue (1): 1-3.

Special Issue: 钢板

    Next Articles

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 Online:2019-02-01 Published:2022-05-23

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 2 ，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
  • 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。

PDF

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.

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

Website Copyright © Special Steel Supported by:Beijing Magtech