China Suppliers of Premium Al₂O₃ Ceramic Components - High-Performance 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?
This material features extremely high hardness, second only to diamond and cubic boron nitride. Its Vickers hardness ranges between approximately 1600 and 1700 HV, providing exceptional wear resistance and a low friction coefficient.
Is this material suitable for dry running conditions?
Yes. Due to its high hardness and low friction coefficient, it is highly suitable for wear-resistant components like sealing rings, bearings, and liners operating under non-lubricated or dry friction conditions.
How does it perform against chemical corrosion?
It offers outstanding chemical corrosion resistance, allowing it to withstand most strong acids (such as high-temperature hydrochloric, nitric, and sulfuric acids), strong alkalis, organic solvents, and molten metals.
What is the maximum temperature limit for this material?
The material exhibits excellent high-temperature stability with a melting point reaching up to 1650°C. Coupled with a low coefficient of thermal expansion, it is ideal for high-temperature furnace tubes, crucibles, and burner nozzles.
Can it be used for electrical insulation?
Yes, it serves as an excellent electrical insulator. It is characterized by very high resistivity, high dielectric strength, a moderate dielectric constant, and low dielectric loss.
Is this material heavy compared to traditional metals?
No, its density is relatively low. It is significantly lighter than metals like steel, which helps in achieving lightweight component designs.