Detailed Product Description name:low chrome cast grinding ball Specification:1)Diameter:8-150mm2)Hardness:45 HRC min3)Microstructure:P+C4)Applied areas:cement building materials,metal mining,coal paste thermal power plants,chemical engineering ceramic coating,light industry,magnetic materials..5)Chemical composition (%)a)C:2.2-3.5b)Cr:0.3-3.0c)Mn:0.3-1.5d)Si:0.5-1.5e)Mo:<1.0f)P:<0.1g)s:<0.1