Stable tubes for high-temperature and electrical applications
Do you need a ceramic tube with excellent heat resistance, dimensional stability, and electrical insulation? Our porous ceramic tube is designed to meet these requirements. This tube is a polycrystalline ceramic component used for industrial insulation and thermal protection. It is a key material in insulating ceramic devices.
It is widely used in industries such as electronics, chemicals, machinery, and heat treatment. It provides electrical insulation, high-temperature resistance, and structural stability.
We use alumina ceramic as the main material. It features a polycrystalline microstructure. After high-temperature sintering and precision forming, the internal grain structure becomes uniform and dense. As a result, its insulation performance, heat resistance, and mechanical strength are superior to those of conventional ceramic tubes.
Standard lengths can reach up to 2000 mm. We offer both standard and customized sizes.
What makes our polycrystalline structure superior?
We have developed precise sintering technology for polycrystalline ceramics. A polycrystalline structure consists of tightly bonded fine crystal grains, which eliminates weak points within the material.
Compared with conventional ceramics, this structure is denser and more stable. It maintains dimensional stability under high temperatures and resists fracture under mechanical stress.
Our gas tunnel kiln provides precise temperature control, ensuring uniform grain development throughout the material. This is a key advantage of our process.
As a result, we deliver higher-performance products. Standard sizes are available in stock, with lengths up to 2000 mm. We also support customization of diameter, wall thickness, length, and surface finish to meet your equipment requirements.
Key specifications for your reference
The table below summarizes the technical data of our porous ceramic tubes.
|
Parameter |
Value / Range |
|
Material |
Alumina ceramic (polycrystalline structure) |
|
Purity |
≥ 95% |
|
Maximum working temperature |
1550°C |
|
Insulation resistance |
> 10¹² Ω·cm |
|
Standard length |
Up to 2000 mm |
|
Inner diameter range |
2 mm – 150 mm (customizable) |
|
Outer diameter range |
5 mm – 180 mm (customizable) |
|
Wall thickness |
1 mm – 30 mm (customizable) |
|
Grain structure |
Fine, uniform polycrystalline |
|
Dimensional stability |
Very high under high temperature |
Why this tube ensures equipment safety
This product offers excellent resistance to heat, electricity, and chemical corrosion. The polycrystalline structure provides strong dimensional stability, heat resistance, and insulation performance.
Even under high-temperature, electrical, or corrosive environments, it maintains long-term stability. It does not conduct electricity and does not deform or crack easily, helping ensure safe and stable equipment operation.
We provide test certificates that meet international standards. This porous ceramic tube complies with global requirements for industrial ceramic materials and is widely used in electronics, chemical processing, machinery, and heat treatment industries. It is a reliable choice for overseas customers, and you can purchase it with confidence.
Hot Tags: porous ceramic tube, China porous ceramic tube manufacturers, suppliers, factory, Porous Ceramic Tube, Hollow Ceramic Tubes, Alumina Single Bore Tubes, ceramic tube, Alumina Ceramic Rod, Ceramic Sheath Tube
