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Silicon Carbide Heating Element/Heater/Rod
- [Introduction]: The silicon carbide heating element is a tubular non-metallic high-temperature heating element formed by using high-quality green silicon carbide as the main raw material and forming a billet, high-temperature silicidation, and recrystallization. Compared with metal electric heating elements, this element has the characteristics of high operating temperature, oxidation resistance, corrosion resistance, long life, small deformation, and convenient installation and maintenance.
Our silicon carbide heating elements adopt the latest cold-end production technology, which has high-quality heat and cold-end resistance ratios, energy saving, and long life. At the same time, it avoids the damage to the furnace body caused by the excessively high temperature of the cold end.
- [Size]: Dimensions can be customized
- Technical Parameters
| Item | Unit | Data | ||||
| RBSiC(SiSiC) | NBSiC | SSiC | RSiC | OSiC | ||
| SiC content | % | 85 | 75 | 99 | ≥99 | ≥90 |
| Free silicon content | % | 15 | 0 | 0 | 0 | 0 |
| Max service temperature | ℃ | 1380 | 1450 | 1650 | 1620 | 1400 |
| Density | g/cm3 | 3.02 | 2.75-2.85 | 3.08-3.16 | 2.65-2.75 | 2.75-2.85 |
| Open porosity | % | 0 | 13-15 | 0 | 15-18 | 7-8 |
| Bending strength 20℃ | Mpa | 250 | 160 | 380 | 100 | / |
| Bending strength 1200℃ | Mpa | 280 | 180 | 400 | 120 | / |
| Modulus of elasticity 20℃ | Gpa | 330 | 580 | 420 | 240 | / |
| Modulus of elasticity 1200℃ | Gpa | 300 | / | / | 200 | / |
| Thermal conductivity 1200℃ | W/m.k | 45 | 19.6 | 100-120 | 36.6 | / |
| Coefficient of thermal expansion | K-1×10-6 | 4.5 | 4.7 | 4.1 | 4.69 | / |
| HV | kg/mm2 | 2115 | / | 2800 | / | / |
| Maximunm operating temperature (℃) | Density(g/cm3) | Heat conduction [W/(m℃)] | Specific heat capacity[KJ/(kg℃)] |
| 1500 | 2.2-2.4 | 23.26 | 0.71 |
| Resistivity (Ω-mm2/m) | Thermal expansion coefficient (20-1500℃)(×10-6/℃) | Tensile strength (MPa) | Flexural strength(MPa) |
| 1000-2000 | 5 | 39.2-49 | 70-90 |
| Diameter | Heating zone length | Cold zone length | Overall length | Range of resisitance |
| 14mm | 100-500mm | 150-350mm | 400-1200mm | 0.7-5.6 ohms |
| 16mm | 200-600mm | 150-350mm | 500-1600mm | 0.7-4.4 ohms |
| 18mm | 200-800mm | 150-400mm | 500-1600mm | 0.7-5.8 ohms |
| 20mm | 200-800mm | 200-600mm | 600-2000mm | 0.6-6.0 ohms |
| 25mm | 200-1200mm | 250-700mm | 700-2600mm | 0.4-5.0 ohms |
| 30mm | 300-2000mm | 250-800mm | 800-3600mm | 0.4-4.0 ohms |
| 35mm | 400-2000mm | 250-800mm | 900-3600mm | 0.5-3.6 ohms |
| 40mm | 500-2700mm | 250-800mm | 1000-4300mm | 0.5-3.4 ohms |
| 45mm | 500-3000mm | 250-750mm | 1000-4500mm | 0.3-3.0 ohms |
| 50mm | 600-2500mm | 300-750mm | 1200-4000mm | 0.3-2.5 ohms |
| 54mm | 600-2500mm | 300-750mm | 1200-4000mm | 0.3-3.0 ohms |
| Maximum temperature and the surface load of silicon carbide element in a different atmosphere | ||
| Atmosphere | Using temperature (℃) | Elements surface load (W/cm2) |
| Ammonia/Hydrogen | 1300 | 4.6 |
| Air | 1500 | 4.0 |
| Nitrogen | 1400 | 4.6 |
| Carbon dioxide | 1500 | 3.8 |
| Carbon monoxide | 1530 | 3.8 |
| Water vapor | 1200 | 4.6 |
| Hydrocarbons | 1320 | 3.1 |
| Sulfur/sulfur dioxide | 1320 | 3.8 |
| Vacuum | 1200 | 3.8 |
| Halogen | 700 | 3.8 |
- Advantages
- Compared with traditional heating wire (1100℃), the silicon carbide heating element (1450℃) has the characteristics of higher power and faster heating.
- Simple and convenient installation and maintenance, improve production efficiency.
- Long service life, wide use environment, and use angle can be adjusted arbitrarily.
- We can produce various shapes of silicon carbide rods, U-shaped, threaded, straight rods, etc. We will recommend suitable solutions according to customer conditions.
- Product Application
Silicon carbide electric heating elements are widely used in a variety of high-temperature electric furnaces and other electric heating equipment in the industries of magnetic materials, powder metallurgy, ceramics, glass, metallurgy and machinery.
- Our Packing
The two packing methods we use are plywood box packing and solid wood packing, with the solid wood box requires a fumigation certificate. Depending on the various products, we will tailor the proper packaging box; Plastic foam measuring 2 cm to 3 cm thick is placed within the box and secured with row nails. To maintain the products safety during shipment, packing tape is typically used.
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