This is the original steel ball when it through out of steel bar mould.
Spec. and weightDiameter | Unit weight | Number per ton | φ10 | 0.0135 | 74073 | φ12 | 0.0181 | 55248 | φ15 | 0.0242 | 41322 | φ20 | 0.0322 | 31056 | φ25 | 0.063 | 15873 | φ30 | 0.11 | 9091 | φ40 | 0.257 | 3891 | φ50 | 0.50 | 2000 | φ60 | 0.867 | 1153 | φ70 | 1.37 | 729 | φ80 | 2.05 | 487 | φ90 | 2.90 | 345 | φ100 | 4.00 | 250 | φ110 | 5.30 | 188 | φ120 | 6.80 | 147 | φ125 | 7.75 | 129 | φ130 | 8.74 | 114 |
| Mechanical properties and metallographic organizationType | Mechanical properties | Metallographic organization | HRC | Falling times | Low-chrome casting bar | ≥45 | ≥8000 | PC | Mid-chrome casting bar | ≥50 | ≥12000 | PC | High-chrome casting bar | ≥55 | ≥15000 | MC | Ultra high-chrome casting bar | ≥60 | ≥22000 | MC |
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Chemical component Type | Chemical component | C | Si | Mn | Cr | Mo | Cu | P | S | Low-chrome casting bar | 2.23.5 | ≤1.2 | ≤1.5 | 0.83.5 | ≤1.0 | ≤0.5 | ≤0.15 | ≤0.15 | Mid-chrome casting bar | 2.03.3 | ≤1.2 | ≤1.8 | 4.09.0 | ≤1.5 | ≤1.0 | ≤0.15 | ≤0.15 | High-chrome casting bar | 1.63.3 | ≤1.0 | ≤2.5 | 1018 | ≤1.0 | ≤1.5 | ≤0.10 | ≤0.10 | Ultra high-chrome casting bar | 2.03.3 | ≤1.0 | ≤2.5 | 2225 | ≤2.0 | ≤1.5 | ≤0.10 | ≤0.10 | The Company's use of the unique casting and heat treatment process, the better the hardness and toughness of the perfect combination of unity and to produce products with a series of wear-resistant materials with low power consumption, improve the operation of the mill rate for the user to reduce costs and reduce the labor of workers Strength, and other features, enable users to use the rest assured that the user to bring greater economic benefits. |
grinding ball mould