Steel Grinding Balls
Introduction of the products:
Specification:
1.Hardness:HRC55-67
2.Impact toughness:>12J/CM2
3.Diameter:20mm-150mm
4.Endurance impact test:>10000
5.Diameter: 20mm-150mm
Characteristics:
.High hardness .Good wear resistance .Good even wear .Even wearing
Chemical Elements:
name | C | Si | Mn | P | S | Cr | HRC |
60Mn | 0.55-0.65 | 0.17-0.37 | 0.7-1.0 | <0.04 | <0.04 | <0.25 | 52-60 |
65Mn | 0.62-0.70 | 0.17-0.37 | 0.9-1.2 | ≤0.035 | ≤0.035 | ≤0.25 | 56-63 |
B2 | 0.72-0.92 | 0.17-0.37 | 0.7-1.0 | <0.04 | <0.04 | 0.4-0.6 | 58-64 |
60Si2CrV | 0.56-0.64 | 1.4-1.8 | 0.4-0.7 | ≤0.03 | ≤0.03 | 0.9-1.2 | ≥60 |
Specification and Hardness of Forged Grinding Ball
Nominal diameter (mm-inches) | Diameteical tolerance (mm) | Weight of Single of forging ball in average | Number of piece of One ton forging ball in average | Surface hardness | Impact toughness |
20-0.8" 25-1.0" 30-1.2" 40-1.6" 50-2.0" |
+2 -1 | 32 64 110 263 513 | 31250 15625 9090 3802 1949 | 55-67 | >12j/cm2 |
60-2.4" 70-2.8" 80-3.2" 90-3.6" 100-4.0" |
+3 -2 | 888 1410 2104 2996 4110 | 1126 709 475 333 243 | ||
110-4.4" 120-4.8" 130-5.2" | +4 -2 | 5457 7102 9030 | 182 140 110 | ||
140-5.6" 150-6.0" | +4 -3 | 11278 13871 | 88 72 |
