100-750mm Graphite Electrodes UHP HP RP Graphite Electrode for Eaf Lf Furnace
| ITEM | Regular power | High power | Ultra High Power | ||||
| UNIT | 3-24inch | 4-24inch | 14-24inch | 12-20inch | 22-28inch | ||
| φ75-600mm | φ100-300mm | φ350-600mm | φ300-500mm | φ550-700mm | |||
| Resistivity | Electrode | μΩ·m | 7.0-9.0 | 5.8-6.8 | 5.5-6.5 | 4.8-5.8 | 4.5-5.5 |
| Nipple | 4.0-4.5 | 4.0-5.0 | 3.5-4.0 | 3.0-4.0 | 2.5-3.5 | ||
| Bending stregth | Electrode | Mpa | 8.0-12.0 | 9.0-12.0 | 10.0-14 | 10.0-15.0 | 12.0-16.0 |
| Nipple | 19.0-22.0 | 16.0-20 | 20.0-23.0 | 20.0-24.0 | 22.0-25.0 | ||
| Elastic Modulus | Electrode | Gpa | 7.0-11.0 | 8.0-12.0 | 8.0-12.0 | 9.0-13.0 | 10.0-14.0 |
| Nipple | 12.0-14.0 | 12.0-15.0 | 14.0-16.0 | 15.0-18.0 | 16.0-19.0 | ||
| Bulk density | Electrode | g/cm3 | 1.60-1.65 | 1.68-1.70 | 1.68-1.72 | 1.70-1.75 | 1.70-1.75 |
| Nipple | 1.75-1.8 | 1.78-1.82 | 1.78-1.82 | 1.78-1.85 | 1.8-1.85 | ||
| Ash | Electrode | % | 0.3 | 0.3 | 0.3 | 0.2 | 0.2 |
| Nipple | |||||||
| Electrode | 10-6/ºC | 2.0-2.4 | 1.6-2.0 | 1.6-1.9 | 1.1-1.4 | 1.1-1.4 | |
| CTE | Nipple | 100-600ºC | 1.8-2.2 | 1.1-1.5 | 1.1-1.4 | 0.9-1.2 | 0.9-1.2 |
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Graphite's dominance as an electrode material in cells (batteries, electrolyzers, etc.) is no accident-it stems from a unique blend of properties that address critical needs in electrochemical systems. Here's why it's the material of choice:
1. Exceptional Electrical Conductivity: Graphite's layered carbon structure allows free electron movement, minimizing energy loss during current flow. This is vital for batteries, where low resistance ensures efficient energy transfer and longer runtime.
2. Chemical Inertness: Graphite resists reaction with most electrolytes (e.g., potassium hydroxide in alkaline batteries, sulfuric acid in lead-acid batteries). This inertness prevents parasitic reactions that degrade cell performance or shorten lifespan.
3. Thermal Stability: Graphite withstands extreme temperatures (up to 3,000°C), making it suitable for high-temperature cells (e.g., molten salt batteries) and industrial processes like aluminum smelting.
4. Cost-Effectiveness: Graphite is abundant (derived from petroleum coke or natural deposits) and inexpensive compared to alternatives like platinum or titanium. This affordability enables large-scale production of cells, from consumer batteries to grid-scale energy storage.
5. Mechanical Durability: Graphite's structural integrity resists cracking or deformation under mechanical stress (e.g., in vibrating batteries or vibrating industrial cells). This ensures consistent performance over time.
For example, in a lithium-ion battery, graphite's conductivity and inertness enable reversible Li⁺ intercalation, while its low cost makes the battery affordable. In electrolyzers, graphite's thermal stability prevents degradation during high-current operation.
In short, graphite's unique combination of conductivity, inertness, cost, and durability makes it irreplaceable in cell electrodes, powering innovation across energy storage and electrochemical technology.
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