AC8706 Alumina Tube, Aluminium Oxide Tube (Al2O3 Tube) 99.5%, OD 20 mm

Alumina Tube, Aluminium Oxide Tube (Al2O3 Tube) 99.5%, OD. 20 mm Description

Crafted from 99.5% pure aluminium oxide (Al2O3), this Alumina Tube stands out for its exceptional hardness, mechanical strength, and thermal stability. With a 20 mm outside diameter, it provides a reliable solution for high-temperature applications where chemical resistance and minimal contamination are crucial. Its dense microstructure minimises porosity, ensuring superior corrosion resistance and extended service life. Designed with dimensional precision, these tubes meet rigorous tolerances to accommodate tight-fitting components, thereby optimising performance and durability.

This high-purity Alumina Tube adheres to stringent quality standards, making it suitable for a wide range of industries, including electronics manufacturing, chemical processing, and research laboratories. The stable, high-temperature performance of aluminium oxide renders it indispensable for furnace systems, thermocouple protection, and specialised industrial processes. Whether you are conducting advanced experiments or scaling up production, this tube delivers consistent, reliable performance under demanding conditions.

Alumina Tube, Aluminium Oxide Tube (Al2O3 Tube) 99.5%, OD. 20 mm Applications

Alumina Tube, 99.5% Aluminium Oxide, OD 20 mm, is well-suited for a wide range of industrial and commercial applications. With high mechanical strength, superior chemical resistance, and excellent electrical insulating properties, these tubes are ideal for demanding environments. They offer remarkable thermal stability and precision, making them indispensable in numerous sectors that require reliable and efficient ceramic components. Additionally, their consistent dimensions ensure a reliable fit for various assembly processes.

1. Electronics and Semiconductor Applications

·         Durable Sensor Housings: Provide excellent protection for sensitive electronic components, maintaining integrity under high temperatures and harsh conditions

·         Vacuum Equipment Insulation: Offer superior insulation and thermal stability for vacuum chambers used in semiconductor manufacturing

2. Chemical Processing and Petrochemical Applications

·         Corrosion-Resistant Liners: Protect equipment by resisting chemical attack, ensuring longer service life and reduced maintenance

·         High-Temperature Processing Tubes: Support efficient thermal exchange in petrochemical systems, enabling stable and controlled processing

3. Medical and Healthcare Applications

·         Sterilisation Chambers: Maintain structural integrity in high-temperature, high-pressure sterilisation processes, ensuring a safe environment for medical tools

·         Laboratory Instruments: Serve as precision fixtures in analytical devices, providing chemical and thermal stability for accurate measurements

Alumina Tube, Aluminium Oxide Tube (Al2O3 Tube) 99.5%, OD. 20 mm Packaging

Each 99.5% Alumina Tube, featuring a 20 mm Outer Diameter, is carefully enclosed in high-density foam inserts that securely cradle the tube to prevent impact damage. Additional cushioning layers and sturdy corrugated boxes shield against breakage in transit. We also offer customisable packaging solutions, such as reinforced corners and specialised foam layers, ensuring maximum protection while accommodating unique shipping requirements.

Packaging: Foam packaging, Wooden Box, or Customised.

Alumina Tube, Aluminium Oxide Tube (Al2O3 Tube) 99.5%, OD. 20 mm FAQs

Q1: What are the key mechanical and thermal properties of Alumina Tube, Aluminium Oxide Tube (Al2O3 Tube) 99.5%, OD. 20 mm?

A1: Alumina tubes with 99.5% purity exhibit high hardness, robust compressive strength, and outstanding wear resistance. They typically have a hardness of around 9 on the Mohs scale, which results in excellent resistance to scratches. The material's thermal conductivity ranges between 20–30 W/mK, ensuring efficient heat transfer. Additionally, it boasts a high maximum use temperature well above 1,500°C, making it suitable for demanding thermal environments like furnaces and high-temperature process systems.

Q2: Which fabrication techniques are typically used to manufacture the 99.5% Alumina Tube with an OD of 20 mm?

A2: These tubes are usually formed by extrusion or cold iso-static pressing, followed by sintering at high temperatures above 1,600°C. The extrusion process ensures uniform wall thickness and diameter control, while isostatic pressing provides consistent density. Machining with diamond tools can be used post-sintering for specialised features or precise tolerances. Additionally, laser or waterjet cutting may be employed for custom lengths and complex geometries.

Q3: What quality standards and certifications are relevant for 99.5% Alumina Tubes with 20 mm outer diameter?

A3: Typical quality standards for these alumina tubes include ISO 9001 for manufacturing consistency and ASTM specifications such as ASTM C773 for testing hardness and ASTM C1161 for flexural strength testing. Manufacturers often conduct rigorous dimensional inspections, density checks, and non-destructive evaluations like ultrasound to identify internal flaws. Compliance with RoHS and REACH directives may also be required, depending on the application and market requirements.

Related Information

1. Quality Control Measures

Quality assurance for 99.5% alumina tubes of this diameter begins with stringent dimensional checks to verify precise outer diameters. Non-destructive testing methods such as ultrasonic inspection help identify any internal flaws without compromising the structural integrity of the material. In addition, manufacturers measure surface finish parameters to ensure minimal roughness, which is critical for optimal performance and longevity.

Every production batch undergoes chemical composition analysis to confirm that the alumina content remains at 99.5%. Consistent purity levels guarantee optimal mechanical and thermal properties, aligning with industry specifications. Furthermore, documented traceability from raw formulation through final inspection reinforces the reliability and accountability of these tubes, making them trusted components in advanced engineering applications.