Electrodes En Graphite 200 250 300mm product parameters
| UHP Graphite Electrode | |||||||
| Item | Unit | Diameter | |||||
| Φ300 | Φ300-Φ350 | Φ400-Φ500 | Φ550 | Φ600 | Φ650-Φ700 | ||
| Electric resistivity≤ | μΩm | 5.50 | 5.50 | 5.50 | 5.50 | 5.50 | 5.50 |
| Flexure strength≥ | Mpa | 12.00 | 12.00 | 12.00 | 12.00 | 12.00 | 12.00 |
| Modulus of elasticity≤ | Gpa | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 |
| Bulk Density≥ | g/cm3 | 1.69 | 1.69 | 1.69 | 1.69 | 1.69 | 1.69 |
| CTE(100-600ºC) ≤ | x10-6/ºC | 1.40 | 1.40 | 1.40 | 1.40 | 1.40 | 1.40 |
| Ash Content ≤ | % | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 |
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How do graphite electrodes work?
Graphite electrodes function as conductive rods that transmit high electrical currents into electric arc furnaces (EAFs) to generate intense heat. When connected to a power source, a high-amperage current flows through the electrode, creating an electric arc between the electrode tip and the metal charge (scrap steel) in the furnace.
This arc reaches temperatures exceeding 3,000°C, melting the scrap and other raw materials into molten steel. The graphite material's high thermal stability prevents rapid degradation under these extreme conditions, while its low electrical resistance ensures efficient energy transfer.
During operation, electrodes are gradually consumed: the tip erodes due to arc interaction, and the body may oxidize or break under mechanical stress. Operators monitor electrode length and adjust usage to maintain optimal performance, replacing them as they degrade to sustain furnace efficiency.
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