Graphite Electrodes (HP & UHP) – Reliable Conductors for Electric Arc Furnaces
Graphite Electrodes are high-conductivity carbon conductors used to melt scrap steel in Electric Arc Furnaces (EAF) and to refine steel in ladle furnaces. Manufactured from premium needle coke and coal tar pitch through a high-temperature graphitization process (up to 3000 °C), our HP and UHP grades deliver stable conductivity and low consumption.
Each electrode is precision-machined with tapered nipples for secure joint performance and consistent power transmission across the full electrode column.
Specifications
Typical Specifications
| Parameter | Typical Value |
|---|---|
| Grade | HP (High Power) / UHP (Ultra High Power) |
| Diameter | 100mm – 600mm |
| Length | 1500mm – 2700mm (customizable) |
| Specific Resistance | HP ≤ 6.5 μΩ·m ｜ UHP ≤ 5.5 μΩ·m |
| Flexural Strength | HP ≥ 9.8 MPa ｜ UHP ≥ 10.5 MPa |
| Bulk Density | HP ≥ 1.62 g/cm³ ｜ UHP ≥ 1.66 g/cm³ |
| Porosity | HP ≤ 25% ｜ UHP ≤ 21% |
| Ash Content | ≤ 0.3% |
| CTE (100-600°C) | HP ≤ 2.2 ×10⁻⁶/°C ｜ UHP ≤ 1.5 ×10⁻⁶/°C |
Diameter, length and nipple specifications can be customized based on furnace requirements. Third-party inspection by SGS/BV available upon request.
Advantages
Why Choose Our GE
Stable Conductivity
Low specific resistance for efficient power transmission.
Low Consumption
Optimized density and strength reduce electrode wear.
Precision Machining
Tapered nipples and sockets ensure reliable column joints.
Full QC Documentation
Batch test reports and third-party inspection available.
Applications
Application Areas
- Electric Arc Furnace (EAF) Steelmaking
- Ladle Refining Furnaces (LF)
- Submerged Arc Furnaces (SAF)
- Silicon & Ferroalloy Production
- Phosphorus Furnaces
FAQ
Frequently Asked Questions
What is the difference between HP and UHP electrodes?
UHP (Ultra High Power) electrodes are made from premium needle coke and undergo deeper graphitization, delivering lower specific resistance (≤5.5 μΩ·m) and better performance under high current densities. HP (High Power) electrodes suit standard EAF operations with cost-effective performance.
Which diameters are available?
We supply diameters from 100mm to 600mm, with lengths from 1500mm to 2700mm. Custom dimensions can be arranged for bulk orders.
Are nipples and joints included?
Yes. Electrodes are supplied with matching tapered nipples and packing protection as standard. Joint options can be customized.
Can you provide a third-party inspection report?
Yes. Third-party inspection by SGS, BV, or equivalent labs can be arranged upon request.
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