Model Number : according to customer requirment #&
Certification : ISO9001
Place of Origin : China
MOQ : 1000 pcs
Payment Terms : TT,L/C at sight,Paypal,Western Union
Supply Ability : 100 Ton per month
Delivery Time : 30 days adter confirm order
Packaging Details : plastic bag and wooden case
Alumina Ceramic Ring
High-purity Alumina Ceramic Seal Ring
Specifications:
1. High density;
2. High hardness;
3. Low thermal conductivity;
4. Chemical inertness;
5 .Resistance to molten metals;
6. Good Wear resistance;
7. High fracture toughness;
8. Good insulation performance and high temperature resistance.
Chemical Properties:
Table1: Technical Parameter Of Alumina Ceramics | |||||
Item | Test condition | Unit& Symbol | 95% Alumina Ceramics | 99% Alumina Ceramics | 99.7% Alumina Ceramics |
The Main Chemical Ingredient | Al2O3 | Al2O3 | Al2O3 | ||
Bulk Density | g/cm³ | > 3.6 | 3.89 | 3.96 | |
Maximum Use Temperature | º C | 1450 | 1600 | 1650 | |
Water Absorption | % | 0 | 0 | 0 | |
ROHS Hardness | ≥ 85 | ≥ 89 | ≥ 89 | ||
Flexural Strength | 20 º C | Mpa(psi*10³ ) | 358(52) | 550 | 550 |
Compressive Strength | 20 º C | Mpa(psi*10³ ) | 2068(300) | 2600(377) | 2600(377) |
Fracture Toughness | K(lc) | Mpa m 1/2 | 4-5 | 5.6 | 6 |
Coefficient Of Thermal Expansion | 25-1000 º C | 1*10 -6 /º C | 7.6 | 7.9 | 8.2 |
Coefficient Of Thermal Conductivity | 20 º C | W/mk | 16 | 30.0 | 30.4 |
Thermal Shock Resistance | Δ Tc | º C | 250 | 200 | 200 |
Dielectricity Constant | 1MHz. 25 º C | 9 | 9.7 | 9.7 | |
Dielectricity Strength | ac-kV/mm(ac V/mil) | 8.3(210) | 8.7(220) | 8.7(220) | |
Volumn Resistivity | 100 º C | ohm-cm | > 1013 | > 1014 | > 1014 |
Applications:
1, ceramic shaft for aquatic animals equipment filter pump
2, Ceramic plunger for high pressure cleaner.
3,Wearlessness,resistant acid-base and high intensity ceramic assembly apply to petroleum ,chemical and chemical industry.
4,Wearlesness, corrosion resistance, thermostable parts apply to precision machine.
Alumina Ceramic Ring made in china for export with good price Images |