Industrial Experiment of 600M Pa Grade Automobile Wheel Steel
SONG Zhenguan
XIA Maosen
ZHANG Lei
Abstract：In view of requirements of high formability and high fatigue life of high strength wheel steel, the chemical component with Cr alloying based on C and Mn is designed. Through adopting sectioning cooling process and medium temperature coiling process, the automobile wheel steel with high expandability was developed by Jinan steel. The microstructure of this steel is ferrite, bainite and less martensite. Its tensile strength is above 600 MPa, the elongation is above 24%, the bore expansion ratio is above 70%. The wheel weight made by this steel compared with ordinary high strength low alloying steel is reduced by 10%above and bending fatigue life of developed steel exceeds 0.6 million times.
Keywords：wheel steel600 MPa gradebore expandabilityfatigue life
Publication Date：2013-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 5-7 )