High-Performance Premium Al₂O₃ Ceramic Components from China Suppliers - Reliable Factory Solutions
High Hardness
Second only to diamond and cubic boron nitride, Vickers hardness is about 1600-1700 HV and excellent wear resistance, while having a relatively low friction coefficient, making it ideal for wear-resistant components such as sealing rings, bearings, and liners under conditions of no lubrication or dry friction.
Outstanding Chemical Corrosion Resistance
Can resist most strong acids (including hydrochloric acid, nitric acid, sulfuric acid at high temperatures), strong alkalis, organic solvents and molten metals, and maintain stable performance in high-temperature, high-humidity and corrosive gas environments. Its excellent high-temperature stability, melting point up to 1650°C, and low coefficient of thermal expansion make it suitable for high-temperature applications such as high-temperature furnaces (furnace tubes, crucibles), thermocouple protection tubes, heat exchanger components, and burner nozzles.
Excellent Electrical Insulator
Possesses a very high resistivity, high dielectric strength, moderate dielectric constant, and low dielectric loss. Moreover, its density is relatively low, significantly lighter than metals such as steel, which is advantageous for achieving lightweight designs.
How hard is this material?
This material features high hardness, second only to diamond and cubic boron nitride, with a Vickers hardness of approximately 1600-1700 HV.
Is this material suitable for wear-resistant components?
Yes. Because of its high hardness, excellent wear resistance, and relatively low friction coefficient, it is ideal for sealing rings, bearings, and liners, even under conditions of no lubrication or dry friction.
What chemicals can this material resist?
It offers outstanding chemical corrosion resistance, allowing it to resist most strong acids (including high-temperature hydrochloric, nitric, and sulfuric acids), strong alkalis, organic solvents, and molten metals.
What is the maximum temperature limit and thermal stability of the material?
It has excellent high-temperature stability with a melting point up to 1650°C and a low coefficient of thermal expansion, making it suitable for furnace tubes, crucibles, thermocouple protection tubes, heat exchangers, and burner nozzles.
What are the electrical insulation properties of this material?
It acts as an excellent electrical insulator, possessing very high resistivity, high dielectric strength, a moderate dielectric constant, and low dielectric loss.
How does its weight compare to steel?
Its density is relatively low, making it significantly lighter than metals such as steel, which is highly advantageous for lightweight engineering designs.