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Mining Balls Ball Mill Balls Casting Steel Ball Forged Ball
20mm-150mm
1. Cast balls specifications
Diameter | Diameter Tolerance | Approx Weight of per ball(kg) | Average numbers per ton |
20 | +1,-0.5 | 0.033 | 30303 |
30 | +2,-1 | 0.11 | 9090 |
40 | +2,-1 | 0.261 | 3831 |
50 | +2,-1 | 0.512 | 1961 |
60 | +2,-1 | 0.883 | 1132 |
70 | +3,-1.5 | 1.402 | 713 |
80 | +3,-1.5 | 2.092 | 478 |
90 | +3,-1.5 | 2.98 | 335 |
100 | +3,-1.5 | 1.087 | 244 |
110 | +3,-1.5 | 5.44 | 183 |
120 | +3,-1.5 | 7.062 | 141 |
2. Cast balls characteristics and advantages
① Size 12mm-150mm
② Chemical elements
Material | C | Si | Mn | Cr | P | S |
Low Cr | 2.2-3.4 | ≤1.2 | 0.5-1.5 | 1.0-1.5 | ≤0.06 | ≤0.06 |
Medium Cr | 2.0-3.2 | <1.0 | 0.5-2.5 | ≥5 | ≤0.06 | ≤0.06 |
High Cr | 2.0-3.2 | <1.0 | 0.5-2.5 | ≥10 | ≤0.06 | ≤0.06 |
③ Hardness
Type | Low Cr | Medium Cr | High Cr |
20mm-150mm | 45-50 | 48-55 | 58-63 |
④ Advantages
High hardness
Good wear resistant
Low Breakage
4. Cast balls Production process
Casting Steel Balls are melted in electric furnace and poured into
moulds after scientific proportioning. High chromium cast balls are
also processed by oil quenching.
5. Cast balls Quality Control
① Factory test
Cast balls test is an very important step. Real-time detection will
be carried out in the production process. Balls produced in each
shift will be sampled in large quantities and tested for size,
hardness, chemical composition, drop test, core pulling and impact
value to ensure the quality of steel balls.
② The third party test
According to the customer different demand, cast iron balls can be
tested by any third party.
Cast balls for ball mill mining
Cast balls production