Product design and production practice of 700MPa high-strength hot rolled strip for engineering machinery
PAN Hui1,WANG Zhao-dong1,LI Fei1,GUO Jia1,BAO Chun-lin1,DENG Xiang-tao1
（1. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, Liaoning, China 2. Research Institute of Technology, Shougang Group, Beijing 100043, China）
Abstract：According to the technical specifications of 700MPa high-strength engineering machinery steel, through reasonable composition design and strict TMCP process, the SQ700MCD high strength engineering machinery steel with good strength toughness matching and good welding performance was developed. The technical background, product design methods and the material microstructure, precipitation, mechanical properties and welding performance were introduced thoroughly.
潘辉，王昭东，李飞，郭佳，包春林，邓想涛. 700MPa级高强工程机械用钢产品设计和生产实践[J]. 中国冶金, 2014, 24(10): 1-6.
PAN Hui,WANG Zhao-dong,LI Fei,GUO Jia,BAO Chun-lin,DENG Xiang-tao. Product design and production practice of 700MPa high-strength hot rolled strip for engineering machinery. China Metallurgy, 2014, 24(10): 1-6.
2014, Vol. 24 
