1)High hardness,Low wear-rate,Low breakage 2)Reasonable price 3)High brand awareness 4)Ten years Casting experiences chrome steel ball for cement plants, mines1.Chemical composition(%)Chemical composition(%)Designation ZQCr10-10 CSiMnCrMoCuPS1.8-3.20.3-1.2≤1.210-13≤0.1≤0.1 little littleNiNbTiZrVBMg littlelittlelittlelittlelittlelittlelittle Properties and MicrostructureHardness≥58 HRcAK(J/cm²)≥ ...