Discover premium alumina ceramic tubes offering exceptional thermal and electrical insulation, ideal for high-temperature and high-voltage applications in various industries.
Download PDFInsulation pipe ceramic alumina tube is a type of ceramic tube specifically designed for insulation purposes. It is made from alumina (Al2O3) ceramic material, known for its excellent thermal insulation properties.
Alumina ceramic is known for its excellent wear resistance, high-temperature resistance, and corrosion resistance, making it suitable for various industrial applications.
Insulation pipe ceramic alumina tubes are commonly used in various industrial applications where heat insulation is required, such as in high-temperature furnaces, kilns, and thermal processing equipment. They provide effective insulation by minimizing heat transfer and maintaining temperature stability.
These tubes are typically available in different sizes, thicknesses, and lengths to accommodate specific insulation requirements. They can be used as standalone insulation components or as part of a larger insulation system.
When choosing insulation pipe ceramic alumina tubes, factors such as thermal conductivity, temperature resistance, mechanical strength, and chemical compatibility should be considered to ensure optimal performance in the intended application.
| Material | Unit | 95% Al2O3 | 96% Al2O3 | 99% Al2O3 | 99.5% Al2O3 | 99.8% Al2O3 |
|---|---|---|---|---|---|---|
| Purity | % | 95 | 96 | 99 | 99.5 | 99.8 |
| Color | --- | White/Pink | White | Ivory | Ivory | Ivory |
| Density | g/cm3 | 3.65 | 3.72 | 3.85 | 3.90 | 3.92 |
| Water Absorption | % | 0 | 0 | 0 | 0 | 0 |
| Moh's Hardness | --- | 9 | 9 | 9 | 9 | 9 |
| HV Hardness | --- | >1300 | >1300 | 1700 | 1750 | 1800 |
| Flexural Strength @25℃ | Mpa | 300 | 300 | 330 | 375 | 390 |
| Fracture Toughness | Mpa.M1/2 | 3~4 | 3~4 | 3~4 | 4 | 4 |
| Compressive Strength (25℃) | Mpa | 2200 | 2200 | 2350 | 2450 | 2500 |
| Thermal Conductivity @25℃ | W/M.K | 18-22 | ≥24 | 27 | 29 | 32 |
| Thermal Expansion Coefficient (25-1000℃) |
10-6mm/℃ | 8 | 8 | 8 | 8 | 8 |
| Thermal Shock Resistance | △T(℃) | 220 | 220 | 180-200 | 180-200 | 180-200 |
| Max. Working Temperature | ℃ | 1500 | 1500 | 1700 | 1750 | 1750 |
| Dielectric Strength | Kv/Mm | 16 | 17.2 | 20 | 22 | 22 |
| Electrical Resistivity (@25℃) | Ω.Cm | 1014 | 1014 | 1014 | 1014 | 1014 |
| Dielectric Constant (@1MHz, 25℃) | --- | 9 | 9 | 9.7 | 9.7 | 9.8 |
| Dielectric Loss (Tan Delta) (@1MHz, 25℃) |
--- | 0.0004 | 0.0002 | 0.0002 | 0.0001 | 0.0001 |
| Parameter | Details |
|---|---|
| Material options | Alumina ( purity from 40% to 99.8%), Zirconia, Silicon carbide, Silicon nitride |
| Forming methods | Extrusion, Dry pressed, Hot pressed, Ceramic Injection Molding, ISO pressed |
| Dimensional capability | The inner diameter can be min.1mm, the outer diameter can max.800mm |
| Dimensional tolerance | The OD to be 0.005mm, the ID to be 0.01mm, the length to be 0.001mm |
| Surface treatment | External and internal surface to be polished, glazed or metalized |
| Secondary processing | CNC machining, lapping, threaded, drilling, grinding, precision laser cutting |
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