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Alumina ceramic washer is a ceramic material with Al2O3 as the main crystal phase. SENCERAMCS can produce ceramic washers with an alumina content of 99% to 99.5%.
| Material | Alumina 99% |
|---|---|
| Outer Diamerter | Up to 250mm |
| Wall Thickness | Down to 1mm |
| Tolerances | Up to +/-0.001mm |
| Forming | Dry-pressing, Isostatic-presssing |
| Processing | CNC machining with fine grinding |
| Customization | Send us your drawing to get our best offers |
Alumina ceramic washer is a ceramic material with Al2O3 as the main crystal phase. SENCER PRECISION CERAMICS can produce ceramic washers with an alumina content of 99% to 99.5%. 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 the performance of abrasion resistance, corrosion, and heat resistance, excellent vacuum sealing and heat dissipation enable alumina ceramic insulators are widely used in numerous industries.
| Composite | (wt %) | 99% |
| Color | White or Ivory | |
| Density | g/cm3 | 3.82 |
| Hardness | HRA | 83 |
| Flexural Strength | Mpa(psi*103 ) | 375 |
| Gas Permeability | 0 | |
| Water Absorption | % | 0 |
| Thermal Shock Resistance | °C | 195 |
| Thermal Expansion | ×10-6/℃ | 8.2 |
| Dielectric Constant,20°C | 1MHz | 9.6 |
| Dielectric loss, tanδ | 1MHz | 2×1014 |
| Volume Resistivity,20℃ | Ω·cm | ≥1014 |
| Dielectric Strength,DC | Ω·cm | 20 |
| Compressive Strength | KV/mm | 2510 |
| Fracture Toughness | MPa( psi * 103) | 350 |
| Poisson’s Ratio | MPa | 0.22 |
| Thermal conductivity | W/mK | 25.8 |
Type:
Alumina Ceramic Washer
Material:
Available Color:
White or Ivory
Feature:
High-Heat Resistance, Excellent Insulation Performance. High Corrosion-Resistance, High Wear-Resistance, High Pressure Pressed
Size:
Size Customized, according to customer’s drawing, OEM.
Application:
Industrial ceramic, Technical ceramic.Advanced ceramic.Fine ceramic.
Advantage:
Package:
Carton+Palletize,Carton,bubble paper inside,Wooden Box.Pls let us know if you have any special requirements.
Producing Methods:
Dry pressing with Fine Lapping. Isostatic pressing.
Tolerance:
Up to ±0.002mm, as customer’s drawing or OEM.
Surface:
Ultrasonic cleaning and dust-free packaging or according to customer’s requirements.
The time limit is very fast (usually will arrive in 5-7 days )and you do not need to pick up the goods by yourself.
Freight charge: higher.
The time limit is very fast (usually will arrive in 7-12 days) and you need to pick up the goods from the airport by yourself.
Freight charge: cheaper than air express.
The time limit is slow and you need to pick up the goods from the destination port by yourself.
Freight charge: cheapest.
We will contact you within 1 working day, please pay attention to the email with the suffix “@senceramics.com”.
