Leave Your Message

Premium Al₂O₃ Ceramic Components from China Factory - Top Suppliers for Enhanced Performance and Durability

Alumina ceramics, primarily composed of Al₂O₃ and enhanced with rare metal oxides, are expertly manufactured in high-temperature processes exceeding 1,000 degrees Celsius. These exceptional materials, produced by leading suppliers in China, showcase remarkable properties such as wear resistance, corrosion resistance, heat resistance, impact resistance, high hardness, high voltage resistance, as well as excellent insulation and thermal conductivity. Trustworthy alumina ceramics from our trusted factory ensure durability and performance for various industrial applications

    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 (FAQ)

    What is the hardness level of this material?

    The material features high hardness, second only to diamond and cubic boron nitride, with a Vickers hardness of approximately 1600-1700 HV, offering excellent wear resistance.

    Is this material suitable for dry friction environments?

    Yes. Due to its high hardness and relatively low friction coefficient, it is ideal for wear-resistant components such as sealing rings, bearings, and liners under conditions of no lubrication or dry friction.

    How does it perform against chemical corrosion and strong acids?

    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 operating temperature and melting point?

    The material has excellent high-temperature stability with a melting point of up to 1650°C. It also features a low coefficient of thermal expansion, making it suitable for high-temperature applications like furnace tubes, crucibles, and burner nozzles.

    Does this material conduct electricity?

    No, it is an excellent electrical insulator. It possesses very high resistivity, high dielectric strength, 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 such as steel, making it highly advantageous for achieving lightweight industrial designs.