High Quality Forged Steel Grinding Ball for Mining Ball Mill
High quality Forged Steel Grinding Ball/Grinding Media for Mine DESCRIPTION 1. Grade: 45#,50Mn,60Mn,65Mn,B2,B3,BL,BG 2. Diameter: 15mm150mm 3. Hardness: HRC 5565 4. Breakage Rate:lt;1% 5. Impact Value: gt;12j/Cm^2 6. Falling ball times: 20000s. Forged(Rolling) Steel Ball Classification and Chemical Composition