What are the basic characteristics of graphite electrodes?
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What are the basic characteristics of graphite electrodes?
Graphite electrodes, with their unique physical and chemical properties, play a vital role in modern industry. As an important conductive material, graphite electrodes have the characteristics of high conductivity, high thermal stability, strong chemical stability and easy processing.
| Item | Unit | RP | HP | UHP | ||||
| 250-400 | 450-800 | 300-400 | 450-700 | 300-400 | 450-700 | |||
| Electric Resistivity | Electrode | μΩ.m | 7.5-8.6 | 7.5-8.8 | 5.5-6.8 | 5.5-7.0 | 4.6-6.0 | 4.8-6.2 |
| Nipple | 4.5-5.5 | 4.0-5.0 | 3.5-4.5 | |||||
| Bending Strength | Electrode | Mpa | ≥8.0 | ≥11.0 | ≥11.0 | |||
| Nipple | ≥15.0 | ≥16.0 | ≥18.0 | |||||
| Elastic Modulus | Electrode | Gpa | ≤9.0 | ≤11.0 | ≤13.0 | |||
| Nipple | ≤13.0 | ≤14.0 | ≤15.0 | |||||
| Bulk Density | Electrode | g/cm3 | 1.55-1.65 | 1.63-1.73 | 1.65-1.75 | |||
| Nipple | 1.70-1.75 | 1.73-1.80 | 1.75-1.82 | |||||
| Ash | Electrode | % | ≤0.3 | |||||
| Nipple | ||||||||
| CTE(100-600)ºC | Electrode | 10-6/ºC | 2.00-2.50 | 1.80-2.00 | 1.30-1.50 | |||
| Nipple | 1.50-1.80 | 1.50-1.80 | 1.20-1.40 | |||||
First, graphite electrodes have high conductivity. Graphite is a good conductor, and its conductivity is second only to metals, and in some aspects it is even better than some metals. This characteristic makes graphite electrodes widely used in the fields of power industry, electronics industry, etc.
Secondly, graphite electrodes have high thermal stability. Graphite has an extremely high melting point and can maintain the stability of its structure and performance under high or even ultra-high temperature environments, which makes graphite electrodes widely used in high-temperature industries such as high-temperature metallurgy and glass manufacturing.
Furthermore, graphite electrodes have strong chemical stability. Graphite has good corrosion resistance to most acids, alkalis and organic solvents, which makes graphite electrodes widely used in the chemical industry, environmental protection industry and other fields.
Finally, graphite electrodes are easy to process. Graphite is soft and easy to cut, carve and shape, which makes graphite electrodes more flexible and convenient in the manufacturing process.
