High Quality Electrode Paste | Söderberg Self-Baking Electrode for Ferroalloy & Calcium Carbide Furnaces | Factory Direct
Brand HQ
Product origin Shandong
Delivery time 7-15 days
Supply capacity 150,000tons
✓ Low Resistivity (68-90 μΩ·m) – Minimizes power loss, improves energy efficiency
✓ High Mechanical Strength – Compressive strength 17-33 MPa after baking
✓ Excellent Thermal Shock Resistance – Low thermal expansion, reduces electrode breaks
✓ Controlled Sintering Properties – Follows precise baking curve for optimal performance
✓ Low Porosity (20-30%) – Slows oxidation, extends electrode life
✓ Customizable Formulations – Tailored to slag-forming, slag-free, or high-purity processes
✓ Multiple Forms – Cylinders, rectangular blocks, or briquettes
✓ Factory Direct – Consistent quality, competitive pricing
Product Description
Electrode paste, also known as Söderberg electrode paste or self-baking electrode, is a conductive carbon material supplied to electric furnaces including ferroalloy furnaces, calcium carbide furnaces, and submerged arc furnaces . It is a mixture of carbon-based materials—primarily electrically calcined anthracite, graphite, petroleum coke, and coal-tar pitch binder—formed into cylinders, briquettes, or blocks .
The unique characteristic of electrode paste is that it forms the electrode in situ during furnace operation. As the paste descends in the steel casing, furnace heat gradually bakes it into a solid carbon electrode with excellent conductivity and high-temperature resistance . This self-baking process ensures continuous electrode supply matched to consumption rates.
Our electrode paste features low resistivity, high mechanical strength, low thermal expansion coefficient, and low porosity, ensuring stable furnace operation and reduced energy loss
| Item | Electrode Paste | ||
| Si | <0.28% | Fe | <0.25% |
| P | <0.004% | ||
| Ash Content | 2-10% | Resistivity | 55-90 uΩm |
| V.M | 10.0-15.0% | Density | >1.46g/cm3 |
| Compression Strength | >18Mpa | Extensibility | 6-20 |
| Apparent Density | >1.42g/cm3 | Rupture Strength | >4.0 |
| Real Density | >1.98g/cm3 | Fluidity Coefficient | 1.10-2.10 |
Major Industrial Applications
1. Ferroalloy Production
Essential for producing ferrosilicon, ferromanganese, silicomanganese, ferrochrome, and ferronickel in submerged arc furnaces .
2. Calcium Carbide Manufacturing
Used in calcium carbide furnaces where high-temperature electric smelting requires reliable electrode performance .
3. Pig Iron Production
Applied in furnaces producing pig iron, where stable electrode operation is critical for continuous smelting .
4. Silicon Metal Smelting
Special formulations available for slag-free silicon and high-purity ferrosilicon processes .
5. Platinum Matte Processing
Used in electric smelting of platinum matte and other non-ferrous metals .
6. Large-Scale Ore Furnaces
Successfully applied in 63,000 KVA large silicon iron ore furnaces with electrode diameters up to 1.9 meters, demonstrating our capability for world-class operations .
Our Factory Advantages: The Source of Quality
1. Direct Manufacturer
We control the entire process from raw material calcination to final forming, ensuring consistent quality and competitive pricing.
2. Superior Raw Materials
Our own anthracite calcining furnaces and strict pitch selection guarantee product purity and performance.
3. Customized Formulations
Tailored electrode paste for your specific furnace type and operating conditions.
4. Large-Furnace Expertise
Proven success in 63,000KVA furnaces with 1.9m diameter electrodes.
5. Strict Quality Control
Each batch tested for fixed carbon (≥82%), ash (1.5-6.5%), resistivity, and volatile matter.
6. Global Supply Capability
Timely worldwide delivery with experienced export team support.
7. Technical Support
Expert guidance on electrode management, charging procedures, and furnace operations.
