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Alumina Tube (≥99% Al₂O₃) – 1200 mm Length

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S4R alumina tubes are made from high-purity alumina ceramic (Al₂O₃ ≥99%) and are designed for laboratory and high-temperature applications.

They offer excellent thermal stability, good chemical resistance, high hardness, and reliable electrical insulation. These tubes are suitable for tube furnaces, thermal processing, controlled-atmosphere experiments, and general laboratory setups requiring a stable ceramic tube. Under suitable operating conditions, alumina tubes can be used at temperatures up to approximately 1700°.

Standard length is 1200 mm, with custom lengths available on request depending on project requirements.

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  • Dimension – Alumina Tube (Out Ø × Inn Ø x L mm)

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Key Performance Advantages


​• High-purity alumina ceramic tube (≥99% Al₂O₃)

​• Excellent resistance to high temperatures and thermal environments

​• Good chemical resistance in laboratory and furnace applications

​• Excellent electrical insulation properties

​• High hardness and wear resistance

​• Suitable for tube furnaces, thermal processing, and controlled-atmosphere experiments

​• Available in multiple outer diameter, inner diameter, and length configurations

​• Standard length: 1200 mm; custom lengths available on request


Thermal Capability


Suitable for:


​• High-temperature laboratory applications

​• Tube furnaces

​• Controlled-atmosphere experiments

​• Air, inert gas, and vacuum environments

​• Thermal processing and material research


Maximum operating temperature: 1700°C.


For best performance and service life, gradual heating and cooling are recommended, especially when operating at high temperature.

Specification
Product Type High-Purity Alumina Rod
Material Alumina Ceramic (Al₂O₃)
Purity ≥99% Al₂O₃
Available Dimensions Outer Diameter × Length
Length Depends on selected variant
Maximum Operating Temperature Up to 1700 °C under suitable operating conditions
Chemical Resistance Good resistance to chemical corrosion in suitable laboratory conditions
Electrical Properties Excellent electrical insulation
Mechanical Properties High hardness, good wear resistance, and good dimensional stability
Typical Applications Ceramic supports, insulating rods, spacers, positioning elements, and laboratory assemblies
Customization Custom dimensions available on request
Supplied Alumina rod according to selected dimension

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