... : high hardness, no breakages, good wear resiscance, even wearing Steel Grinding Ball Forged Steel Grind Balls:1) Diameters: dia. 20mm - dia. 150mm2 ... .2, P: 0.04 max., S: 0.04 max.4) Cr: 0.25 max.RCAB-I forged grinding balls:1) Diameters ... 1.25, P: 0.04 max., S: 0.04 max., Cr: 0.11-0.4; V: 0.05-0.12RCAB-II ... -0.8, P: 0.035 max., S: 0.035 max., Cr: 0.28-0.60Features:1) Characteristics: a) High hardness and ...