We supply various of grinding media (High Chrome Casting grinding balls & grinding cylpebs) from 10mm to 130 mm in diameter to Cement plant,Metal mining. Power plant etc.1) Main Products: High Chrome casting grinding ball. Low Chrome Casting ball, high Chrome casting grinding cylpebs and Low Chrome Casting cylpebs.2)Diameter : From 10 mm to 130mm 3)Chemical composition: Cr: 10-26 P: 0.08 Max. S: 0.08Max. C:2.0~3.4,Si:0.3~1.0,Mn:2.5Max.4)Hardness: 58-66 HRC 5)Microstructure: P + C6)Breakage: Less than 0.3%.7)Package: Packed in ton bags(1000kg/bag) or iron drums(850~920Kg/Drum)Note: The chemical composition can be adjusted according to customers' special requirments.