Cast Iron Grinding Balls 1inch -6 inch Manufacturer sale Forged grinding steel ball / casting steel balls
The Specification of Casting Steel Ball
Low Chrome Casting Steel Ball
Chrome Concentration is 1-3%, hardness ≥ HRC 45, impact value ≥1J/CM^2, this steel ball is called low chrome grinding balls, which is made by smelting in intermediate frequency electric furnace, metal mould or sand casting process. It applies to metallurgic mines and slag industries where no high grinding accuracy or wearability is required.
| Chemical Composition | C(%) | Si(%) | Mn(%) | Cr(%) | Cu(%) | Mo(%) | P(%) | S(%) |
| 2.1-3.6 | 1.5max | 0.3-1.5 | 1.0-3.0 | ≤0.8 | ≤1.0 | ≤0.10 | ≤0.10 |
| Size | 17mm-150mm(0.8inch-6inch) |
| Hardness | Serious | Hardness |
| Standard Hardness | >45HRC |
| Impact Value | ≥1.5J/CM^2 |
| Balls Number | ≥10000times |
| Microstructure | P+C(C-Pearlite M-Martensite ) |
Medium Chrome Casting Steel Ball
Middle chrome grinding balls chrome concentration is 4-6%, hardness ≥ HRC 48, impact value ≥2J/CM^2Middle chrome grinding ball have a better performance than complex alloy ball.
| Chemical Composition | C(%) | Si(%) | Mn(%) | Cr(%) | Cu(%) | Mo(%) | P(%) | S(%) |
| 2.1-3.3 | 1.5max | 0.3-1.5 | 4.0-6.0 | ≤0.8 | ≤0.10 | ≤0.10 | ≤0.10 |
| Size | 20-150mm(0.8inch-6inch) |
| Hardness | Serious | Hardness |
| Standard Hardness | >50HRC |
| Impact Value | ≥3J/CM^2 |
| Balls Number | ≥12000times |
| Microstructure | M+C(C-Carbide M-Martensite ) |
High Chrome Casting Steel Ball
High chrome casting grinding ball, chrome concentration is 10%-24%, hardness ≥HRC58, impact value ≥3.5J/CM^2. High chrome casting grinding ball is one of the wearable steel ball with better performance-price-ratio, and its extensive usage has won itself a high share in the market.
| Chemical Composition | C(%) | Si(%) | Mn(%) | Cr(%) | Cu(%) | Mo(%) | P(%) | S(%) |
| 2.0-3.3 | 1.2Max | 0.3-1.5 | 10.0-24.0 | ≤0.1.2 | ≤0.10 | ≤0.10 | ≤0.10 |
| Size | 20-150mm(0.8inch-6inch) |
| Hardness | Serious | Hardness |
| Standard Hardness | >58HRC |
| Impact Value | ≥5J/CM^2 |
| Balls Number | ≥15000times |
| Microstructure | M+C(C-Carbide M-Martensite ) |
Production process of Chrome alloy casting iron ball
Raw material→Secientic proportioning→Electric furnace smelting→Assay before furnace→Mould forming→Polishing→Heat treatment→Packing
Packaging & Shipping
1.Bag:diameter17-150mm 1000kg/bag
2.Drum:diameter17-25mm 1000kg/drum
diameter30-50mm 950kg/drum
diameter60-70mm 900kg/drum
diameter80-90mm 850kg/drum
diameter100-150mm 800kg/drum
20 feet container:25tons
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1 inch - 6 inch Cast Iron Grinding Balls 17mm - 150mm Size Images
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