Jinan Huafu Forging Joint-Stock Co.,ltd.
Grinding Media Manufacturer
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PRODUCTS INTRODUCTION
Carbon steel grinding ball is the most commonly used one. Widely used in mines, power plants, chemical plants and mill factory’s large ball mill. Diameter is 20-150mm. And we can also customize all size of products according to clients’ demand. The main products performance as follow:
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Chemical Composition | C(%) | Si(%) | Mn(%) | Cr(%) | Cu(%) | Mo(%) | P(%) | S(%) | |
| 0.42-0.50 | 0.17-0.37 | 0.5-0.8 | ≤0.25 | ≤0.25 | ≤0.3 | ≤0.035 | ≤0.035 | ||
| Size | 20-150mm(0.8inch-6inch) | ||||||||
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Hardness | Serious | Hardness | |||||||
| Standard Hardness | 48-53HRC | ||||||||
| High Hardness | 55-60HRC | ||||||||
| Impact Value | ≥12J/CM^2 | ||||||||
| Balls Number | ≥12000times | ||||||||
| Microstructure | M+C(C-Carbide M-Martensite ) | ||||||||
Manganese steel grinding ball I
Manganese steel grinding ball I is popular in Korea, Japan and North Korea, impact value is more than 12J/CM^2, manganese content is about 0.6-1.0%. This is the cheapest one in the manganese grinding balls. The performance as follow:
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Chemical Composition | C(%) | Si(%) | Mn(%) | Cr(%) | Cu(%) | Mo(%) | P(%) | S(%) | |
| 0.48-0.56 | 0.17-0.37 | 0.6-1.0 | ≤0.25 | ≤0.25 | ≤0.3 | ≤0.035 | ≤0.035 | ||
| Size | 20-150mm(0.8inch-6inch) | ||||||||
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Hardness | Serious | Hardness | |||||||
| Standard Hardness | 50-55HRC | ||||||||
| High Hardness | 55-60HRC | ||||||||
| Impact Value | ≥12J/CM^2 | ||||||||
| Balls Number | ≥12000times | ||||||||
| Microstructure | M+C(C-Carbide M-Martensite ) | ||||||||
Manganese steel grinding ball II
Manganese steel grinding ball II with high hardness and corrosion resistance specialty. Mainly used in wet ball mill in mines and quartz sand factories.Has been exported to Pure, Mexico, Spain, India, Australia and South Africa. The specific performance as follow:
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Chemical Composition | C(%) | Si(%) | Mn(%) | Cr(%) | Cu(%) | Mo(%) | P(%) | S(%) | |
| 0.57-0.65 | 0.17-0.37 | 0.7-1.0 | ≤0.25 | ≤0.25 | ≤0.3 | ≤0.035 | ≤0.035 | ||
| Size | 20-150mm(0.8inch-6inch) | ||||||||
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Hardness | Serious | Hardness | |||||||
| Standard Hardness | 53-58HRC | ||||||||
| High Hardness | 55-60HRC | ||||||||
| Impact Value | ≥15J/CM^2 | ||||||||
| Balls Number | ≥15000times | ||||||||
| Microstructure | M+C(C-Carbide M-Martensite ) | ||||||||
Manganese steel grinding ball III
Manganese steel grinding ball III with high manganese content, impact value is more than 15J/CM^2, less wearing. Well exported all over the world. Performance as follow:
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Chemical Composition | C(%) | Si(%) | Mn(%) | Cr(%) | Cu(%) | Mo(%) | P(%) | S(%) | |
| 0.62-0.70 | 0.17-0.37 | 0.9-1.0 | ≤0.25 | ≤0.25 | ≤0.3 | ≤0.035 | ≤0.035 | ||
| Size | 20-150mm(0.8inch-6inch) | ||||||||
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Hardness | Serious | Hardness | |||||||
| Standard Hardness | 55-60HRC | ||||||||
| High Hardness | 58-63HRC | ||||||||
| Impact Value | ≥15J/CM^2 | ||||||||
| Balls Number | ≥15000times | ||||||||
| Microstructure | M+C(C-Carbide M-Martensite ) | ||||||||
Special steel grinding ball I
This grinding ball is widely used all over the world. High volume hardness and less wearing. Quality is well accepted by the customers. Please kindly check the following detailed performance.
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Chemical Composition | C(%) | Si(%) | Mn(%) | Cr(%) | Cu(%) | Mo(%) | P(%) | S(%) | |
| 0.72-0.80 | 0.17-0.37 | 0.8-0.9 | 0.5-0.6 | ≤0.25 | ≤0.3 | ≤0.035 | ≤0.035 | ||
| Size | 20-150mm(0.8inch-6inch) | ||||||||
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Hardness | Serious | Hardness | |||||||
| Standard Hardness | 58-63HRC | ||||||||
| High Hardness | 62-65HRC | ||||||||
| Impact Value | ≥15J/CM^2 | ||||||||
| Balls Number | ≥15000times | ||||||||
| Microstructure | M+C(C-Carbide M-Martensite ) | ||||||||
Special steel grinding ball II
This grinding steel ball is one new type steel ball, good toughness and no breakage. It’s the new favorite in the users. Performance as follow:
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Chemical Composition | C(%) | Si(%) | Mn(%) | Cr(%) | Cu(%) | Mo(%) | P(%) | S(%) | |
| 0.58-0.65 | 1.60-1.90 | 0.65-0.80 | 0.70-0.90 | ≤0.25 | ≤0.3 | ≤0.035 | ≤0.035 | ||
| Size | 20-150mm(0.8inch-6inch) | ||||||||
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Hardness | Serious | Hardness | |||||||
| Standard Hardness | 58-63HRC | ||||||||
| High Hardness | 62-65HRC | ||||||||
| Impact Value | ≥18J/CM^2 | ||||||||
| Balls Number | ≥18000times | ||||||||
| Microstructure | M+C(C-Carbide M-Martensite ) | ||||||||
| Diameter Tolerance(mm) | 20-25mm | 30-60mm | 70-90mm | 100-140mm | 150mm | ||
| ±1 | ±1.5 | +2,-2 | +2.5,-2 | +3,-2 | |||
| Roundness tolerance(%) | ≤1% | ≤1% | ≤1.5% | ≤2% | ≤2% | ||
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Forged Steel Ball Production Process | 1)Fully automatic production line of hot rolling steel ball Raw material testing→Material on storage rack→automatic continued feeding device→furnace heating→enter into rolling ball machine→automatic isothermal transfer→quenching system→steel ball heating preservation device→finished steel ball testing→package→transport to warehouse
2)Automatic production line of hot forging steel ball Raw material testing→Material on storage rack→furnace heating→hot cutting→preforging→enter into rolling ball machine →automatic isothermal system transport→quenching system→steel ball heating preservation device→finished steel ball testing→package→transport towarehouse
3)Traditional production line of forged steel ball Raw material testing→Cutting raw material→furnace heating→forging→automatic isothermal system→quenching system→steel ball heating preservation device→finished steel ball testing→package→transport to warehouse
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