Al₂O₃ Alumina Ceramic Rod and Tube

Al₂O₃ Alumina Ceramic Rod and Tube is a high-performance advanced ceramic component designed for applications requiring excellent thermal conductivity, electrical insulation, mechanical strength, and high-temperature stability. Aluminum nitride combines the thermal conductivity of a high-performance heat-conducting material with excellent electrical insulation, making it suitable for demanding industrial and semiconductor applications.

With a thermal conductivity of 170–230 W/(m·K), electrical resistivity of >10¹⁴ Ω·cm, and bending strength of 300–400 MPa, AlN ceramic tubes provide reliable performance in environments where efficient heat transfer, electrical isolation, and mechanical durability are required simultaneously.

The tubular structure can be manufactured in various inner diameters, outer diameters, lengths, wall thicknesses, and dimensional tolerances. Precision machining and surface finishing are also available for applications requiring accurate fitting and stable dimensional performance.

Aluminum nitride ceramic tubes are particularly suitable for semiconductor equipment, high-temperature protective sleeves, and molten metal processing. Their excellent thermal conductivity helps transfer heat efficiently, while the high electrical resistivity provides reliable electrical insulation. The ceramic material also offers good thermal stability for demanding high-temperature environments.

High Purity Al₂O₃ Alumina Ceramic Rod and Tube

Technical Specifications

Property	Specification
Product Name	Aluminum Nitride Ceramic Tube
Material	Aluminum Nitride (AlN) Ceramic
Thermal Conductivity	170–230 W/(m·K)
Electrical Resistivity	>10¹⁴ Ω·cm
Bending Strength	300–400 MPa
Electrical Insulation	Excellent
High Temperature Stability	Excellent
Thermal Shock Resistance	Excellent
Wear Resistance	Good
Corrosion Resistance	Good
Inner Diameter	Customizable
Outer Diameter	Customizable
Length	Customizable
Wall Thickness	Customizable
Dimensional Tolerance	Customizable
Surface Finish	Precision Grinding / Polishing Available
Manufacturing Process	Forming, Sintering, Precision Machining
Customization	Available According to Drawings

High Purity Al₂O₃ Alumina Ceramic Rod and Tube

Product Advantages

1. High Thermal Conductivity

Aluminum nitride ceramic provides thermal conductivity of 170–230 W/(m·K), allowing heat to move efficiently through the ceramic tube. This makes it suitable for equipment where temperature control and heat dissipation are important.

Unlike conventional electrically insulating materials with relatively low thermal conductivity, AlN offers an effective combination of thermal management and electrical insulation.

2. Excellent Electrical Insulation

With electrical resistivity greater than 10¹⁴ Ω·cm, AlN ceramic tubes provide excellent electrical insulation. This property is particularly useful in semiconductor equipment and other industrial systems where the component must prevent unwanted electrical conduction while maintaining efficient thermal transfer.

3. High Mechanical Strength

The bending strength of 300–400 MPa provides good mechanical reliability for tubular ceramic components. This helps the tube withstand mechanical loads and handling stresses when properly designed according to the operating environment.

4. Suitable for High-Temperature Environments

AlN ceramic has good thermal stability and can be used in demanding high-temperature applications. It is suitable for protective sleeves, tubes, and structural components exposed to elevated temperatures, provided the specific operating atmosphere and temperature are compatible with the material.

5. Precision Manufacturing and Customization

Aluminum nitride ceramic tubes can be produced in different dimensions and configurations to meet specific equipment requirements. JianXun can provide customized inner and outer diameters, lengths, wall thicknesses, dimensional tolerances, and surface finishes according to customer drawings.

Applications of Aluminum nitride ceramic tubes

Applications

1. Semiconductor Equipment

Aluminum nitride ceramic tubes are suitable for semiconductor manufacturing equipment where high thermal conductivity, electrical insulation, and dimensional stability are required. They can be used as insulating and protective tubular components in equipment exposed to heat and demanding processing conditions.

2. High-Temperature Protective Sleeves

AlN ceramic tubes can serve as protective sleeves for components operating at elevated temperatures. Their thermal stability and mechanical strength help protect internal components while maintaining reliable performance in high-temperature environments.

3. Molten Metal Processing

Aluminum nitride ceramic tubes can be used in selected molten metal processing applications where resistance to high temperatures and efficient thermal transfer are important. Their ceramic construction makes them suitable for specialized protective and structural components used around molten materials.

4. Thermal Management Equipment

The high thermal conductivity of 170–230 W/(m·K) makes AlN tubes suitable for specialized thermal management systems. They can help transfer heat efficiently while maintaining electrical insulation where required.

5. Electrical and Electronic Equipment

Because of its extremely high electrical resistivity, aluminum nitride can be used in electrical and electronic equipment requiring reliable insulation. The combination of electrical insulation and high thermal conductivity is particularly useful for components that need to manage heat without creating an electrical conduction path.

6. High-Temperature Industrial Equipment

AlN ceramic tubes can be used as insulating tubes, protective tubes, and structural components in high-temperature industrial equipment. Their combination of mechanical strength, thermal conductivity, and electrical insulation makes them suitable for demanding thermal processing environments.

Company Profile

Luoyang JianXun Tech Co., Ltd. is a professional supplier of advanced ceramic materials and industrial ceramic components, providing aluminum nitride, alumina, and other high-performance ceramic products for industrial customers worldwide. We support customized ceramic tubes and components according to customer drawings, dimensions, material requirements, tolerances, and application conditions, with a focus on consistent quality and reliable performance.

Payment

1. T/T
2. L/C
3. Western Union
4. Other payment methods can be discussed according to order requirements.

Shipment

1. Express delivery
2. Air freight
3. Sea freight
4. Shipment method can be selected according to product quantity, destination, delivery time, and customer requirements.

Storage Condition

Store aluminum nitride ceramic tubes in a clean, dry, and well-ventilated environment, away from moisture, corrosive substances, and direct contamination. During storage and transportation, use suitable protective packaging and avoid impact, dropping, bending, or excessive mechanical pressure to prevent cracking, chipping, or surface damage.

FAQ of Aluminum Nitride Ceramic Tubes

1. What are aluminum nitride ceramic tubes mainly used for?

Aluminum nitride ceramic tubes are mainly used in semiconductor equipment, high-temperature protective applications, molten metal processing, and specialized thermal management systems. They are especially suitable where high thermal conductivity and electrical insulation are required at the same time.

2. What is the thermal conductivity of your AlN ceramic tube?

The thermal conductivity of the specified aluminum nitride ceramic tube is 170–230 W/(m·K). The actual value may depend on the material grade, purity, manufacturing process, and product configuration.

3. Can AlN ceramic tubes be customized according to drawings?

Yes. We can manufacture customized aluminum nitride tubes according to customer drawings or specifications. Inner diameter, outer diameter, length, wall thickness, dimensional tolerances, and surface finish can be discussed according to the application.

4. Are aluminum nitride ceramic tubes suitable for high-temperature applications?

Yes. AlN ceramic has good thermal stability and can be used for high-temperature protective tubes and structural components. For applications involving extremely high temperatures or molten metals, the specific temperature, atmosphere, contact material, and operating conditions should be provided for technical evaluation.

5. What information should I provide when requesting a quotation?

For an accurate quotation, buyers should provide the tube dimensions, quantity, required thermal conductivity, electrical requirements, operating temperature, application, tolerances, and surface finish. A technical drawing or sample is recommended for customized orders.