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Introduction
High-purity graphite powder is a graphite material with a high carbon content, and its purity is usually above 99.9%. This material has excellent high temperature resistance (up to 3000°C), corrosion resistance (not soluble in acid), electrical conductivity, thermal conductivity, lubricity, chemical stability and other properties.
High purity and high quality: The purity of high-purity graphite powder usually reaches more than 99.9%, ensuring its excellent physical and chemical properties. Its high strength, high density, high purity and other characteristics enable it to perform well in various application fields.
Excellent high temperature resistance: High-purity graphite powder can remain stable at temperatures up to 3000°C. Even under ultra-high temperature arc burning, its weight loss is very small and its thermal expansion coefficient is also very low. This characteristic makes it widely used in fields that need to withstand high temperature environments.
Good lubrication: High-purity graphite powder has excellent lubrication performance. The larger the scales, the smaller the friction coefficient and the better the lubrication performance. This gives it unique application advantages in areas that require high lubricity, such as bearings in precision instruments and sliders in clock winding devices.
Excellent electrical and thermal conductivity: The electrical conductivity of high-purity graphite powder is one hundred times higher than that of ordinary non-metallic minerals, and its thermal conductivity is also higher than that of steel, iron, lead and other metal materials. Its thermal conductivity decreases as the temperature increases. Even at extremely high temperatures, high-purity graphite powder can become a heat insulator.
Excellent chemical stability: High-purity graphite powder has good chemical stability at room temperature and is resistant to acid, alkali and organic solvent corrosion. This allows it to maintain stable performance in a variety of chemical environments.
Good thermal shock resistance: High-purity graphite powder can withstand drastic changes in temperature without being damaged when used at room temperature. When the temperature suddenly changes, the volume of graphite does not change much and will not cause cracks.
Product Size
0-0.5mm, 0.2-1mm, 2-5/1-8mm, 1-5/5-10mm, 1-3/1-5mm
32 mesh, 50 mesh, 80 mesh, 100 mesh, 150 mesh, -100 mesh, -200 mesh, -325 mesh
* Special grain size can be customized based on your actual requirement.
1 metric ton big bag or as customized
Application
Electrical industry: used to manufacture conductive materials such as electrodes, brushes, carbon rods, and carbon tubes.
Electronic industry: used to manufacture capacitors, conductors, semiconductors and other electronic components.
Chemical industry: used to manufacture chemical products such as catalysts, lubricants, and coatings.
Metallurgical industry: used as refractory materials, deoxidizer and steelmaking raw materials.
Machinery industry: used to manufacture seals, bearings, washers and other mechanical parts.
In addition, high-purity graphite powder is also widely used in military industry, aerospace, electric power, new energy and other fields, such as used as stabilizer, lubricant and thermal conductor for pyrotechnic materials, manufacturing lightweight composite materials, and spacecraft coatings. and heat-resistant coatings, etc.
Specification
| Fixed Carbon (≥%) | Size (%) | Moisture (≤%) | (ppm) | ||
| Over Sieve(≥%) | Down Sieve(≥%) | ||||
| 99.9 | 80 | – | 0.2 | Fe | 60 |
| – | 90 | Mo | 1 | ||
| 85 | Cr | 8 | |||
| – | 75 or 80 | Cu | 2 | ||
| 99.99 | 80 | – | Cd | 1 | |
| 80 | – | Sb | 1 | ||
| 80 | – | Pb | 5 | ||
| – | 80 | As | 0.5 | ||
| – | 80 | – | |||
| – | 75 or 80 | – | |||
Artificial synthetic graphite powder
| Fixed Carbon | Sulphur | Ash | Volatile matter | Nitrogen | Moisture | Size(mm) |
| 99% min | 0.03% max | 0.5% max | 0.5% max | 0.01% max | 0.5% max | 1-3/1-5 |
| 98.5% min | 0.05% max | 0.7% max | 0.8% max | 0.03% max | 0.5% max | 1-5/5-10 |
| 99% min | 0.03% max | 0.5% max | 0.5% max | 0.01% max. | 0.5% max | 2-5/1-8 |
| 98% min | 0.07% max | 1% max | 1% max | 0.03% max | 0.5% max | 0.2-1 |
| 98% min | 0.1% max | 1% max | 1% max | 0.05%max | 0.5% max | 0-0.5 |
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