... : 0.7-0.9, Si: 0.45-0.75, Mn: 0.7-1.25, P: 0.04 max., S: 0.04 max., Cr: 0.11-0.4; V: 0.05-0 ... .12RCAB-II forged grinding balls:1) Diameters: dia. 40 - dia. 150mm2) Hardness: HRC60-653) Chemical elements: C: 0.72-0.82, Si: 0.17-0 ... .37, Mn: 0.7-0.8, P: 0.035 max., S: 0.035 max., Cr: 0.28-0.60Features:1) Characteristics ...