Grinding Steel Balls supply 1-6"forged grinding balls for gold mine,cooper mine
Products introduction
Forged steel ball is divided into carbon grinding steel ball, manganese grinding steel ball and special grinding steel ball. Forged steel ball is one of our advantage products. Diameter 20-70mm and 80-150mm steel ball are produced respectively by advanced automatic hot rolling and hot forging steel ball production fu grinding balls with uniform hardness in a high efficiency due to its advanced quenching technology. In advanced, these grinding balls feature high accurate dimensions, rounded geometry shape, high hardness and good mechanical properties, wear - resistance, no deformation, no breakage.
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:
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) | ||||||||
Hardness | Serious | Hardness | |||||||
| Standard Hardness | 50-55HRC | ||||||||
| High Hardness | 55-60HRC | ||||||||
| Impact Value | ≥12J/CM^2 | ||||||||
| Balls /strong> | ≥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:
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) | ||||||||
Hardness | Serious | Hardness | |||||||
| Standard Hardness | 53-58HRC | ||||||||
| High Hardness | 55-60HRC | ||||||||
| Impact Value | ≥15J/CM^2 | ||||||||
| Balls /strong> | ≥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:
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) | ||||||||
Hardness | Serious | Hardness | |||||||
| Standard Hardness | 55-60HRC | ||||||||
| High Hardness | 58-63HRC | ||||||||
| Impact Value | ≥15J/CM^2 | ||||||||
| Balls /strong> | ≥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.
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) | ||||||||
Hardness | Serious | Hardness | |||||||
| Standard Hardness | 58-63HRC | ||||||||
| High Hardness | 62-65HRC | ||||||||
| Impact Value | ≥15J/CM^2 | ||||||||
| Balls /strong> | ≥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:
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) | ||||||||
Hardness | Serious | Hardness | |||||||
| Standard Hardness | 58-63HRC | ||||||||
| High Hardness | 62-65HRC | ||||||||
| Impact Value | ≥18J/CM^2 | ||||||||
| Balls /strong> | ≥18000times | ||||||||
| Microstructure | M+C(C-Carbide M-Martensite ) | ||||||||
Other customized material
| Series/(%) | Si(%) | Mn(%) | Cr(%) | Cu(%) | Mo(%) | P(%) | S(%) | |
| 80# | 0.77-0.85 | 0.17-0.37 | 0.50-0.80 | 0-0.25 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 |
| 40Mn | 0.37-0.44 | 0.17-0.37 | 0.70-1.0 | 0-0.25 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 |
| 40Mn2 | 0.37-0.44 | 0.17-0.37 | 1.40-1.80 | 0-0.25 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 |
| 70Mn | 0.65-0.75 | 0.17-0.37 | 0.90-1.20 | 0-0.25 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 |
| 70Mn2 | 0.65-0.75 | 0.20-0.45 | 1.4-1.8 | 0-0.25 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 |
| 40Cr | 0.37-0.45 | 0.17-0.37 | 0.50-0.8 | 0.80-1.1 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 |
| 70Cr2 | 0.65-0.75 | 0.20-0.30 | 0.75-0.90 | 0.55-0.70 | 0-0.25 | 0-0.30 | 0-0.030 | 0-0.030 |
| B1 | 0.52-0.65 | 0.17-0.37 | 0.60-1.2 | 0-0.25 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 |
| B2B | 0.58-0.65 | 0.17-0.37 | 0.90-1.0 | 0.60-0.65 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 |
| B4 | 0.60-0.65 | 1.60-1.70 | 0.70-0.80 | 0.70-0.80 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 |
| B-6 | 0.75-0.85 | 0.2-0.40 | 0.90-1.0 | 0.85-0.95 | 0-0.25 | 0.06-0.13 | 0-0.035 | 02-0.035 |
| B-6A | 0.82-0.95 | 0.20-0.40 | 0.92-1.02 | 0.80-0.95 | 0-0.25 | 0.06-0.10 | 0-0.035 | 0-0.035 |
| B-7 | 0.35-0.40 | 0.17-0.37 | 0.70-0.80 | 0.90-1.0 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 |
| BV | 1-1.06 | 0.17-0.37 | 0.9-1.0 | 0.55-0.65 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 |
| GCr15 | 0.95-1.05 | 0.15-0.35 | 0.20-0.40 | 1.30-1.65 | 0-0.25 | 0-0.10 | 0-0.027 | 0-0.20 |
| 16Mn | 0.13-0.19 | 0.2-0.6 | 1.2-1.6 | 0-0.30 | 0-0.25 | --- | 0-0.03 | 0-0.03 |
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