Silicon carbide tube is a high-performance dense ceramic product, mainly containing silicon carbide, with the characteristics of high temperature resistance (above 1400℃), wear resistance, corrosion resistance, and excellent thermal shock stability. It is suitable for industrial kilns as heating, cooling, gas transportation and supporting components with a long service life.
Depending on the process, we can supply silicon carbide tubes, reaction sintered silicon carbide tubes and recrystallized silicon carbide tubes. The excellent performance makes silicon carbide tubes a potential substitute for traditional semiconductors (such as silicon) in high-temperature applications.
| Objet | SiO₂-SiC | SiSiC/RBSiC | R-SiC | Si3N4-SiC |
|---|---|---|---|---|
| SiC % | ＞85 | 90~92 | ＞99 | ≥75 |
| Density g/cm3 | 2.65~2.75 | >3.02 | 2.65～2.75 | 2.65～2.85 |
| Porosity % | 15~16 | <0.1 | 15-18 | 13-15 |
| Bending strength (20℃)Mpa | 90~100 | 260 | 80～100 | 160-180 |
| Bending strength (1200℃)Mpa | 100~110 | 280 | 90～110 | 170-180 |
| compressive strength (20℃)Mpa | ≥300 | 900 | ≥300 | 580 |
| Hardness Kg/mm2 | 1800~2000 | 2400 | 1800～2000 | 2000-3000 |
| Thermal Conductivity (1200℃)w.m-1.k-1 | 35~36 | 45 | 36 | 19.6 |
| Coefficient of thermal expansion(1200℃) | 4.6 | 4.5 | 4.6 | 4.7 |
| Maximum operation temperature ℃ | 1500 | 1380 | 1650 | 1550 |
The above are the basic parameters of silicon carbide tubes we provide to you. (The data in the parameter table are obtained by the Kerry technical team after multiple tests. Of course, Kerry is happy to customize various parameters according to your needs.)
Kerui silicon carbide tubes are available in a variety of sizes. Besides standard dimensions, we can also customize tubes according to customer requirements.
Silicon Carbide Tube boasts excellent high-temperature resistance, withstanding over 1600℃ while maintaining strong oxidation resistance. It features stable mechanical strength at high temps, superior thermal shock resistance, and strong corrosion resistance to acids, alkalis and other chemicals. Additionally, it offers good thermal conductivity for energy efficiency and reliable insulation, making it ideal for high-temperature applications in electronics, energy and more.
Silicon carbide tubes serve as protection components (e.g., thermocouple tubes) for high-temp equipment like medium frequency forging, heat treatment furnaces, metallurgy, chemical, and non-ferrous smelting. They enable external tube heating for internal working environments, function as essential kiln furnace tubes/furniture, vacuum furnace parts, linings for 1400°C+ furnaces, and components for corrosive high-temp tubular/sintering/reaction furnaces.