Products / Alumina ceramics / Alumina Ceramic Hollow Tube
ProductMaterial properties
Alumina Ceramic Hollow Tube
Aliases:Insulating Precision Ceramic Sleeve
Introduction
Alumina Ceramic Hollow Tube, essential in high-tech and industrial sectors, offers excellent physical and chemical properties. Its high-purity alumina base and precision manufacturing ensure exceptional performance in extreme environments, from high temperatures to precise electrical insulation. Whether for structural support or electrical insulation, these tubes deliver reliable, durable performance.
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Alumina Ceramic Hollow Tube
*Some content and parameters are for reference only. Our company can adjust ceramic performance and customize processing according to customer needs.
Design Features
Alumina ceramic hollow tube, also known as insulated precision ceramic sleeve or ceramic bushing, is a high-performance industrial ceramic material with several notable physical and chemical properties. This ceramic tube is designed compactly and primarily used for smaller structures and applications, not suitable for large ceramic tube working environments.
High Purity Alumina Material
The main material used is 96% high purity alumina, ensuring excellent mechanical performance and wear resistance.
Zero Water Absorption and Porosity
Alumina ceramic hollow tubes have a water absorption rate of 0% and porosity of 0, indicating outstanding performance in humid or airtight environments.
Excellent Electrical Insulation
They have high dielectric strength (12 KV/mm), making them ideal for use as electrical insulation sheaths.
High Temperature Resistance
Capable of withstanding temperatures up to 1600°C, suitable for high-temperature environments.
Good Mechanical Strength and Toughness
Flexural strength reaches 300 MPa, compressive strength is up to 2000 MPa, and they possess moderate fracture toughness (3.5 MPa·m^1/2).
Thermal Stability and Thermal Shock Resistance
Low thermal expansion coefficient (6.5-7.5 x 10^-6/℃), high thermal conductivity (25 W/(m·K)), able to withstand thermal shocks up to 200°C.
Application Areas
Electronics and Electrical Industry
Used as cable bushings and electrical insulators to protect wires from mechanical damage and prevent electrical faults.
Mechanical and Structural Applications
Employed in mechanical devices such as bearing sleeves and guide components, providing sliding and structural support.
Heat Treatment and Furnace Applications
Utilized as protective sleeves in heat treatment equipment to shield sensitive components from direct exposure to extreme environments.
Research and Laboratory Applications
In chemical and physical experiments, used as corrosion-resistant and high-temperature containers or conduits.
Aerospace and Automotive Industry
Applied for sensor protection, especially in environments requiring high temperature resistance and electrical insulation.
Dongguan Haikun New Material Co., Ltd.
A global advanced precision ceramics (special ceramics) manufacturer, focusing on the development, design, production and sales of advanced precision ceramic products, covering zirconium oxide, aluminum oxide, silicon nitride and other materials, which are widely used in aviation, aerospace, military industry, medical and other fields
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Comparison of ceramic material properties
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Use our interactive ceramic material comparison chart to compare ceramic materials across different material properties.
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*The values in the table are typical material properties
Precision ceramic product customization process
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