Knowledge What is Ceramic Tube Made Of? 5 Key Materials Explained
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Tech Team · Kintek Solution

Updated 2 months ago

What is Ceramic Tube Made Of? 5 Key Materials Explained

Ceramic tubes are essential components in various industrial applications, known for their ability to withstand high temperatures and harsh environments.

What is Ceramic Tube Made Of? 5 Key Materials Explained

What is Ceramic Tube Made Of? 5 Key Materials Explained

1. Alumina Tubes

Alumina tubes are one of the most common types of ceramic tubes.

They are made from high-purity alumina, often exceeding 99.6% purity.

Alumina tubes have a high bulk density of at least 3.80 g/cm².

They can operate continuously at temperatures up to 1600°C.

Despite their excellent thermal conductivity, alumina tubes, especially those made from corundum, can be susceptible to thermal shock.

2. Mullite and Recrystallized Alumina (RCA)

Mullite and recrystallized alumina are other popular materials for ceramic tubes.

These materials are chosen for their high-temperature resistance and chemical stability.

They prevent unwanted reactions with sample materials inside the furnace.

3. Silicon Carbide Tubes

Silicon carbide tubes, particularly in their recrystallized form, are valued for their exceptional thermal conductivity and wear resistance.

Mullite-bonded silicon carbide tubes offer a balance of thermal and mechanical properties suitable for demanding furnace applications.

4. Zirconia Tubes

Zirconia tubes are known for their high-temperature stability and corrosion resistance.

They are often used in applications where these properties are crucial.

5. Customization and Applications

Ceramic tubes can be customized to meet specific requirements.

This includes special dimensions, tight tolerances, and additional features like flanges, holes, and slots.

These tubes are used in furnace and kiln applications, supporting heating elements, providing lead outs for electrical cables, and serving as burner holes in gas and oil-fired kilns.

Continue exploring, consult our experts

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