High Purity 996.%Alumina Ceramic Washer
Customize the industrial ceramic
- Rich production experience
- Strict quality inspection system
- Good price and after sale service
- Small tolerance
- Good surface roughness
Description
High Purity 996.%Alumina Ceramic Washer

Properties of alumina ceramic washer:
- Very high compressive strength (2,000 to 4,000 MPa).
- High hardness (15 to 19 GPa).
- Low density (3.75 to 3.95 g/cm3).
- Operating temperature without mechanical load 1,000 to 1,500°C.
- Moderate thermal conductivity (20 to 30 W/mK).
- High corrosion and wear resistance.
The advantages of alumina ceramic washer:
1.Thermonstability
Working temperature of high alumina ceramics can be as high as 1400 degree celsius.
2.Good self-lubricity
High alumina ceramics have the properties of self-lubricity, the roughness is only 1/6 that of steel pipes thus less flow resistance.
3.High hardness
Rockwell hardness of high alumina ceramics is up to HRA80-90 which is second only to diamond and far exceeds wear-resistant steel and stainless steel.

Finishing ability:
1.The maximum height is 600mm.
2.The maximum length is 2500 mm.
3.The maximum CNC length is 1200 mm.
Applications of alumina ceramic washer:
Alumina ceramic washer finds extensive use in a wide range of industries and applications.
In the automotive industry, alumina ceramic is employed in the production of components such as ceramic spark plugs, ceramic oxygen sensors, and ceramic diesel particulate filters, ceramic heater, ceramic guide, ceramic roller, ceramic shim part and so on.
Technical Data
| Properties | Unints | Alumina | Zirconia | Sic | Si3N4 | |||||
| 95%al2o3 | 97%al2o3 | 99%al2o3 | 99.5%al2o3 | 99.7%al2o3 | 99.99%al2o3 | |||||
| Density | g/cm3 | 3.6 | 3.75 | 3.8 | 3.9 | 3.94 | 3.95 | 6 | 2.7 | 2.8 |
| Color | - | White | White | Ivory | Ivory | Ivory | White | White/Black/Blue | Black | Gray |
| Hardness | Mohs Scale | 8.8 | 8.9 | 9 | 9 | 9 | 9 | 8.8 | 9.5 | 9 |
| Straightness | ‰ | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Bending Strength(20°c) | Mpa | 304 | 320 | 340 | 370 | 375 | 375 | 1200 | 90 | 180 |
| Compressive Strength(20°c) | Mpa | 1910 | 2100 | 2210 | 2300 | 2300 | 2300 | 2500 | 600 | 650 |
| Water Absorption | % | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 | 0 | 0 | 0 |
| Max Working Temperature | °c | 1500 | 1650 | 1700 | 1750 | 1750 | 1750 | 600 | 1600 | 1650 |
| Dielectric Constant 1MHZ(E) | 25°c@1MHz | 9.2 | 9.3 | 9.5 | 9.7 | 9.7 | 9.8 | 29 | 10 | 9.5 |
| Thermal Conductivity | W/m.k | 25 | 27.5 | 29 | 30 | 30 | 30 | 2.5 | 15 | 23 |
| Fracture Toughness | Mpa*m1/2 | 3.8 | 4 | 4.2 | 4.3 | 4.3 | 4.4 | 10 | 10 | 10 |
FAQ
1.Can i have a sample order? Or do you provide the free sample?
Yes, we welcome sample order to test and check the quality. For the free sample, if we have stock,
we can offer it with free, but the courier fee is to be collected.
2.Do you accept customized production based our specification?
Yes,we offer OEM and ODM service.
3.What’s the delivery time?
Usually 7 working days for standard products, 30 days for customized products.
4.What is the payment terms you accept?
T/T,LC,Western Union,moneygram are acceptable.
5.Why choose us?
- Rich production experience.
- Professional technical team.
- Strict quality inspection system.
- Good price and service.
- Fast delivery time.






