Description
Alumina ceramic tube is made of a ceramic material with Al2O3 as the main crystal phase. SENCER PRECISION CERAMICS can produce ceramic tubes with an alumina content of 99% to 99.8%. The alumina has a compact structure, low activity, and high-temperature stability. The electrical properties are the best, with good mechanical properties, with a Mohs hardness of 9. With their excellent wear resistance, heat resistance, corrosion resistance, and good chemical stability, alumina ceramic plates are widely applied in numerous industries.
Material Properties:
| Composite | (wt %) | 99% | 99.5% | 99.8% |
| Color | White or Ivory | White or Ivory | White or Ivory | |
| Density | g/cm3 | 3.82 | 3.9 | 3.92 |
| Hardness | HRA | 83 | 85 | 85 |
| Flexural Strength | Mpa(psi*103 ) | 375 | 386 | 381 |
| Gas Permeability | 0 | 0 | 0 | |
| Water Absorption | % | 0 | 0 | 0 |
| Thermal Shock Resistance | °C | 195 | 198 | 198 |
| Thermal Expansion | ×10-6/℃ | 8.2 | 8.2 | 8.2 |
| Dielectric Constant,20°C | 1MHz | 9.6 | 9.6 | 9.7 |
| Dielectric loss, tanδ | 1MHz | 2×1014 | 1×1014 | 1×1014 |
| Volume Resistivity,20℃ | Ω·cm | ≥1014 | ≥1014 | ≥1014 |
| Dielectric Strength,DC | Ω·cm | 20 | 20 | 20 |
| Compressive Strength | KV/mm | 2510 | 2700 | 2600 |
| Fracture Toughness | MPa( psi * 103) | 350 | 350 | 350 |
| Poisson’s Ratio | MPa | 0.22 | 0.22 | 0.22 |
| Thermal conductivity | W/mK | 25.8 | 27 | 27 |
Type:
Alumina Ceramic Tube
Material:
Alumina 99%-99.8%
Available Color:
White or Ivory
Feature:
High-Heat Resistance, Insulation Performance.Long lifetime with excellent mechanical strength.
Size:
Size Customized, according to customer’s drawing, OEM. We can reach the best wall thickness to 0.5mm and the Max diameter to 800mm.
Application:
CNC fine machining and lapping ceramic parts, Industrial ceramic, Technical ceramic.
Advantage:
Tight Tolerances
Large diameter and length available, up to 2000mm length and 250mm outside diameter.
Wide range of thickness options, 7mm -20mm wall thickness
19 more Years Advanced Ceramics Experience
Super Heat Resistant and Mechanical strength
Fast Delivery Date.
Sample projects available
Free Molding charge
Long lifetime
Package:
Carton+Palletize,Carton,bubble paper inside,Wooden Box.Pls let us know if you have any special requirements.
Producing Methods:
Hot pressing, Dry pressing, Casting, Cylindrical grinding.
Tolerance:
Up to ±0.02mm, as customer’s drawing or OEM.
Surface:
Ra1.2 roughness in general or according to customer’s requirements.
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