cast grinding ball 1 Even hardness ,low breakable 2 Grinding resistant 3 High impact value
1.Chemical composition:
Item | C | Cr | Si | Mn | S | P | Cu | Mo | Ni | Hardness |
Element | 0.72-0.82 | 0.25-0.60 | 0.17-0.37 | 0.7-1.10 | ≤ 0.035 | ≤0.035 | ≤0.1 | ≤0.25 | ≤0.1 | 55-65 |
2.Specification and Hardness of Grinding Ball
Nominal diameter (mm) | 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 |
DIA20 DIA 25 DIA 30 DIA 40 DIA 50 |
+2 -1 | 32 64 110 263 513 | 31250 15625 9090 3802 1949 |
55-65 |
≥12 |
DIA 60 DIA 70 DIA 80 DIA 90 DIA 100 |
+3 -2 | 888 1410 2104 2996 4110
| 1126 709 475 333 243 | ||
DIA 110 DIA 120 DIA 127 | +4 -2 | 5457 7102 9030 | 182 140 110 |
3.Features: (1) Characteristics: a) High hardness and resistance b) Good even wear c) No breaking (2) Applied fields: a) Mines b) Cement building materialsc) Power plantd) Chemical industry 4.Outer packing: Container bags, steel drums
Low Chrome cast iron Ball
