... Casting grinding steel balls Size(DIAMETER)10mm-130mmFeatureA) High hardnessB) No breakageC) Even wearingD) Good wear ... -60)C)Low chromium steel ball(45-50)Quality standardISO 9001:2000,SGSApplicationsA) Ore developingB) Cement ... 1.2, Mn 1.5-2.0, Cr 10-16, P 0.10Max, S 0.1MaxB) ... 5-2.0, Cr 4-9, P 0.10 Max, S 0.1MaxC)Low chromium steel ball ... tonsthe sample Low price and high quality grinding steel ball