... T. Or Only black Hot Forged Steel Round Bar (C45/SAE8620/16MnCr5)Grade:c45Size:300-1200MM ;Grade:S45CSimilar grade:SAE1045 ... ,C45,C45E,CK45,EN8 Steel Ingot:EAF+LF+VDChemical compostion: ... will according the customer's requirment;Other specification:Carbon Steel:C45, CK35,C60, C22Alloy Steel: 42CrMo4, 34CrNiMo6,39CrNiMo3,18CrNiMo5, ...