Development of Hot-rolled,Microalloyed and High-strength Steel of P490QK for Automobile Azle Housing
Composition design was carried out according to the characteristics of axle housing steel for automotive. Related experiments for Ni & Ti-microalloyed steel were taken at different finish rolling temperatures and coiling temperatures in 1450 hot strip mill. The effect on steel properties of chemical composition,process parameters and microstructure were analyzed according to the technical requirements of the axle housings steel. The producing process which is fit to use in Panzhihua steel was determined. On the basis,the 490 MPa level axle housing of hot-rolled steel was developed. On the condition of determinate composition and process,the property characteristics are as following: the yield strength (ReL) is 405 MPa, tensile strength (Rm) is 515 MPa,elongation (A) is 30% ,and yield ratio is 0. 82 as well. There are good cold formability and welding properties of this steel product.
azle housing microalloying hot-rolling process weld property
Wu Juhuan Ye Xiaoyu Pan Hong Li Weiping Huang Xujing Luo Xu Yang Feng Liu Jian Fan Jianhua
Panzhihua Iron and Steel Research Institute,Panzhihua 617000,China Hot Rolling Factory.Panzhihua New Steel & Vanadium Co.Ltd.,Panzhihua 61 7062,China Department of Technology & Quality,Panzhihua New Steel & Vanadium Co.Ltd.,Panzhihua 617061,China
国际会议
2009 International Symposium on Automobile Steel(2009年汽车用钢生产及应用技术国际研讨会)
大连
英文
237-241
2009-09-06（万方平台首次上网日期，不代表论文的发表时间）