... .,Ltd. High Chrome Grinding Media used In Ball Mill to Give the Optimum Output with the Best Quality Matchless Product.2.Our company has advanced equipment ... .3-1.2, Mn 1.5-2.0, Cr 10-16, P 0.10Max, S 0.1MaxB)Medium chromium steel ball C 2.0-3 ... .3, Si 0.3-1.2, Mn 1.5-2.0, Cr ... 4-9, P 0.10 Max, S 0.1MaxC)Low chromium steel ball C 2.2-3.5, Si 0.3-1.0 ...