Silicon Carbide Rod Features
- The hot end surface can reach 1600°C.
- Has good anti-oxidation performance.
- Stable performance in a chemical environment.
- Bending strength of 100-120MPa.
- High infrared radiation rate.
- Easy installation and long life, simple maintenance.
Popular Types of Silicon Carbide Rods
Silicon carbon heat element rods are mainly used as heating elements in various high-temperature electric furnaces, muffle furnaces, experimental furnaces, and other heating equipment.
The middle is the heating zone, the two ends are cold zone, maximum operating temperature is 1500°C.
Mainly used in high-temperature furnaces for power saving.
Mainly used in the float glass industry, with high temperature resistance and corrosion resistance.
Mainly used in most high-temperature heating appliances, such as electric furnaces, muffle furnaces, and tunnel kilns.
The heating part is made of special materials and has a super long service life.
The density reaches 2.8g/cm³, and the maximum operating temperature is 1650°C.
Advantages of Silicon Carbide Rods
Silicon carbon rods are commonly used in high temperature sintering, annealing, tempering and other heat treatment processes in glass, ceramics, electronics, metallurgy and other industries.
The maximum operating temperature can reach 1650℃.
A layer of silicon dioxide protective film will be formed on the surface of the rod at high temperature to extend the service life.
It has good corrosion resistance to acid, alkali and other chemical substances.
Rapid heating, short heating time, effectively improve production efficiency and save energy.
It can provide stable heating power to ensure the stability and controllability of the heating process.
It is not easy to break during normal use.
The structure is relatively simple, the installation method is diverse, and it is easy to maintain and replace.
It can provide users with economical and effective solutions in high temperature heating applications.
Why Choose Newthink Silicon Carbide Rod?
We can provide high-quality Silicon Carbide Heating Element Rod for metallurgy, semiconductors, glass manufacturing, ceramic sintering, scientific research experiments and other fields to meet the needs of various application scenarios.
The product has uniform density and strong resistance stability, and can still maintain efficient heating at a high temperature of 1600℃.
It can not only quickly meet the large-scale order needs of foreign customers, but also ensure stable product quality.
Customized sizes can be provided according to customers’ special specifications, usage scenarios, performance, and resistance value requirements.
A complete quality control system has been established and ISO international quality management standards are implemented.
A professional international business team is set up to provide 24-hour online service.
Environmentally friendly raw materials and energy-saving technologies are used in the production process to reduce pollutant emissions.
Resistance Value Detection of Silicon Carbide Rods
Since the resistance value of silicon carbon heater is large at room temperature, and the ratio corresponding to the high temperature resistance value has a large dispersion, the resistance value of silicon carbon rod measured by a multimeter at room temperature is inaccurate. Before leaving the factory, each rod needs to be measured for resistance at 1050℃ (±50℃).
Silicon Carbide Rods Packaging
The packaging types of Carborundum Rod and bar include paper boxes, plywood boxes, etc. The packaging method is usually to wrap the product with cushioning materials such as bubble film and pearl cotton, and then put it in the corresponding packaging container, and fill the gap with foam particles, sponges, and other shock-absorbing materials to prevent damage during transportation.
Physical Properties of Silicon Carbide Rods
Silicon carbon rods and heaters are mainly composed of silicon carbide (SiC), and the purity is generally above 95% – 99%.
- Data Sheet
| Diameter | Unit | GD/GDH/GDU/W | LS/LD |
| True specific gravity | / | 3.2 | 3.1 |
| Apparent specific gravity | / | 2.5 | 2.8 |
| Porosity | % | 23 | 5 |
| Flexural strength | MPa at 25℃ | 50 | 98 |
| Specific heat | kJ/kg+℃ at 25℃~1300℃ | 1 | 1 |
| Heat conductivity (hot side) | W/m+℃ at 1000℃ | 14~19 | 16~21 |
| Specific resistance (hot side) | Ω·cm at 1000℃ | 0.08~0.1 | 0.016 |
| Coefficient of thermal expansion | 1000℃ (×10⁻⁶/℃) | 4.5 | 4.5 |
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Silicon carbide rod is one type of general electric heating element, and it is applied to numerous high-temperature heating equipment, such as electric furnaces, muffle furnaces, tunnel kilns, etc. It serves as a heat source for metal heat treatment, ceramic sintering, glass melting, powder metallurgy, and other industrial production processes, and can also be used for laboratory high-temperature experiments.
Silicon carbide heating element rod’s maximum temperature in air will generally be as high as 1650℃, but when it comes to practical use, its maximum operational temperature will depend on many different factors, for example, the mode of working, working condition, method of heating, etc.
Silicon carbide bar life depends on a great many factors such as operating temperature, thermal conditions, load size, etc. Under ordinary working conditions, its life is generally 2000-3000 hours. When working at low temperature, in good conditions and moderate load, it may be longer; when high temperature, poor conditions or heavy loads are employed, its life will decrease.
There is no standard time. Replacement should be done when the carborundum rod indicates a considerable increase in resistance, unbalanced heating, serious cracks or surface damage, or is unable to reach the required heating temperature. If the operating procedures are followed strictly while operating and the operating conditions of the equipment are good, it will take a long time to replace; but if it is operated under wrong conditions or in a bad environment, it may have to be replaced within a few months or even less.
