Furnace graphite electrodes are essential consumable components used in electric arc furnaces (EAFs) and ladle refining furnaces (LFs) to conduct electrical energy and generate the high temperatures required to melt steel and other metals. Manufactured from high-quality petroleum coke and/or needle coke, these electrodes are processed through calcination, molding, baking, impregnation, and high-temperature graphitization to deliver exceptional performance in industrial furnace operations.
They are available in various grades—RP (Regular Power), HP (High Power), and UHP (Ultra High Power)—and multiple diameters and lengths, making them suitable for a wide range of furnace applications.
Key Features:
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High Electrical Conductivity – Enables efficient arc generation and heat transfer
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Excellent Thermal Shock Resistance – Tolerates rapid heating and cooling cycles
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Superior Mechanical Strength – Withstands the intense mechanical stress of furnace environments
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Low Ash Content – Prevents contamination of molten steel or metal
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Replaceable Nipples – Precision threading ensures secure and stable connections
Available Grades and Typical Specifications:
| Grade | Resistivity (µΩ·m) | Bulk Density (g/cm³) | Flexural Strength (MPa) | Ash Content (%) |
|---|---|---|---|---|
| RP | ≤ 10.0 | ≥ 1.53 | ≥ 8.0 | ≤ 0.5 |
| HP | ≤ 6.5 | ≥ 1.65 | ≥ 10.0 | ≤ 0.3 |
| UHP | ≤ 5.5 | ≥ 1.68 | ≥ 10.5 | ≤ 0.3 |
Note: Values vary slightly by manufacturer and electrode diameter.
Standard Dimensions:
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Diameter: 200 mm to 700 mm (8” to 28”)
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Length: 1600 mm to 2700 mm
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Thread Type: 3TPI or 4TPI
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Matching Nipples: Supplied with or separately upon request
Applications:
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Electric Arc Furnaces (EAF): Used to melt recycled scrap and DRI in steelmaking
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Ladle Furnaces (LF): For secondary steel refining and temperature adjustments
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Submerged Arc Furnaces (SAF): For producing ferroalloys, silicon metal, and calcium carbide
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Non-ferrous metallurgy: In copper, nickel, and other alloy melting operations
Packaging:
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Packed in wooden crates with secure fastenings
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Ends protected with plastic caps
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Wrapped for moisture and dust protection
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Complies with export packaging standards
Conclusion:
Furnace graphite electrodes are a critical component of modern high-temperature metallurgy. Whether you’re operating a small arc furnace or a high-capacity steel plant, selecting the right graphite electrode ensures efficiency, longevity, and consistent quality in your melting process.
