B2 Hot Rolling Steel Cylpeb

Chemical Composition C(%)Si(%)Mn(%)Cr(%)Cu(%)Mo(%)P(%)S(%)0.70-0.800.17-0.370.70-0.800.50-0.60=0.25=0.3=0.035=0.035Size 20*30-50*60mm Hardness SeriousSurfaceVolume HardnessStandard Hardness56-60HRC54-58HRCHigh Hardness60-64HRC58-62HRCImpact Value =18J/CM^2Balls Number =18000timesMicrostructure M+C Production Process Manual put material into storage rack?automatic continued feeding device?stokehole pinch roll feeding device?furnace heating?pinch roll discharging speediness discharging?enter into rolling ball machine?rolling ball quenching system?steel cylpebs sweltering self tempering device?f
B2 Hot Rolling Steel Cylpeb