forged steel ball

Forged grinding steel ball for grinding mills Size:DIA20MM-150MM Chemicals:C0.6-1.0 Mn1.0 Max Si0.17-0.37 Cr0.4-1.0 P,S0.035 or customerized Hardness:HRC60-65 can be customerised Low wearing rate and breakage and no roundness Nominal Diameter(mm) Dimensional Tolerance(mm) Roundness % Φ20 ±2 ≤6 Φ25 ±2 ≤6 Φ30 ±2 ≤5 Φ35 ±2 ≤5 Φ40 ±2 ≤5 Φ50 +3,-1 ≤4 Φ60 +3,-1 ≤4 Φ70 +3,-1 ≤4 Φ75 +3,-1 ≤4 Φ80 +3,-1 ≤4 Φ90 +4,-2 ≤4 Φ100 +4,-2 ≤4 Φ120 +4,-2 ≤4 Φ125 +4,-2 ≤4 Φ130 + 4,-2 ≤4 Φ140 +4,-2

Forged grinding steel ball for grinding mills Size:DIA20MM-150MM Chemicals:C0.6-1.0 Mn1.0 Max Si0.17-0.37 Cr0.4-1.0 P,S0.035 or customerized Hardness:HRC60-65 can be customerised Low wearing rate and breakage and no roundness Nominal Diameter(mm) Dimensional Tolerance(mm) Roundness % Φ20 ±2 ≤6 Φ25 ±2 ≤6 Φ30 ±2 ≤5 Φ35 ±2 ≤5 Φ40 ±2 ≤5 Φ50 +3,-1 ≤4 Φ60 +3,-1 ≤4 Φ70 +3,-1 ≤4 Φ75 +3,-1 ≤4 Φ80 +3,-1 ≤4 Φ90 +4,-2 ≤4 Φ100 +4,-2 ≤4 Φ120 +4,-2 ≤4 Φ125 +4,-2 ≤4 Φ130 + 4,-2 ≤4 Φ140 +4,-2