... -resistance 3.No breakage High & low chrome cast grinding cylpebs & grinding bars are extensive used in cement bulid material ... ,ceramic industry,dope industry,light industry etc.The casting cylpebs and bars are high hardness, low wear-rate,the ... -65Low-chrome: surface HRC:45-50Chemical composition:High Chrome cylpebs& bars:C:2.0-3.2 Si:0.3 ... :≤1.0 P:≤0.10 S:≤0.08Low chrome cylpebs&bars:C:2.0-3.5 Si:1.0 ...