Chemical Composition C(%)Si(%)Mn(%)Cr(%)Cu(%)Mo(%)P(%)S(%)2.1-3.6≤1.50.3-1.51.0-3.0≤0.80≤1.0≤0.10≤0.10Size 8*10-45*50mm Hardness SeriousSurfaceVolume HardnessStandard Hardness45-48HRC43-46HRCImpact Value ≥1J/CM^2Balls Number ≥8000timesMicrostructure P+CDiameter and Length Tolerance(mm) 8*10-18*20mm20*25-30*35mm35*40-45*50mm±1±1.5±2mm Production Process  Iron---Add Alloyed Material---Furnace Heating---Pouring to the Model---Out of the Model---Finishing---Quenching---Cooling---Tempering---PackagingApplication Cement plants, Mines, Power stations, Chemical industries, Other ball millsPackage Bags(one bag=one ton); Drums(one drum=900-1000kgs)