High-Performance China Al₂O₃ Ceramic Components - Top Suppliers & Quality Factory Products for Enhanced Durability
Product Details
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.
Frequently Asked Questions
What is the hardness level of this material?
The material features extreme hardness, second only to diamond and cubic boron nitride, with a Vickers hardness of approximately 1600-1700 HV. This provides outstanding wear resistance and a low friction coefficient.
Can this material withstand strong acids and alkalis?
Yes, it exhibits outstanding chemical corrosion resistance. It can 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 for this product?
The material has a melting point of up to 1650°C. Its high thermal stability and low coefficient of thermal expansion make it ideal for high-temperature applications like furnace tubes, crucibles, and burner nozzles.
Is this material suitable for electrical insulation?
Yes, it is an excellent electrical insulator. It possesses very high resistivity, high dielectric strength, a moderate dielectric constant, and low dielectric loss.
Is this material heavy? Can it be used for lightweight designs?
No, it has a relatively low density and is significantly lighter than metals like steel, making it highly advantageous for applications requiring lightweight structural designs.