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As a premier advanced ceramic material, our 99% Alumina (Al2O3) ceramic is engineered for demanding applications requiring exceptional wear resistance, high-temperature stability, and excellent electrical insulation. With a density of ≥3.6 g/cm³ and near-zero porosity, it delivers superior mechanical strength and durability in harsh environments.
Key Material Properties & Advantages
Exceptional Hardness & Wear Resistance: Significantly outperforms metals and most other ceramics in abrasive environments, extending component service life.
High Corrosion Resistance: Inert to most chemicals and solvents, ideal for pumps, seals, and components in the chemical processing industry.
Excellent Electrical Insulation: Maintains high electrical resistivity even at elevated temperatures, suitable for substrates and insulating components.
Good Thermal Stability: Can operate continuously at high temperatures while maintaining its structural integrity.
High Mechanical Strength: Offers high flexural and compressive strength for mechanically loaded components.
Technical Data & Comparative Properties
1. 99% Alumina (ALOX-AP Grade) Specifications
Property
Value (ALOX-AP)
Al₂O₃ Content
94 - 96 %
Density
3.6 - 3.7 g/cm³
Flexural Strength
300 - 330 MPa
Hardness
12 - 13 GPa
Thermal Conductivity (20-100 °C)
20 - 25 W/m*K
Max. Operating Temperature (Air)
1500 °C
2. Comparative Material Properties (99% Al2O3 vs. Other Advanced Ceramics)
Property
99% Al2O3
S-SiC
ZrO2
Si3N4
Density (g/cm³)
3.9
3.1
6.0
3.2
Hardness (HV)
1700
2200
1300
1400
Flexural Strength (MPa)
~350
~400
~900
~700
Thermal Conductivity (W/m *K)
31
100
3
25
Max. Use Temp. (°C)
1500
1600
1300
1400
Note: The ALOX-HP grade (99.7% Al2O3) offers even higher density (3.8-3.9 g/cm³) and flexural strength (350-400 MPa) for the most demanding applications.
Primary Industrial Applications
Our dense alumina ceramics are critical components across numerous industries:
Mechanical Components: Bearings, seal rings, valve plates, ball valves, and plungers for pumps and compressors.
Wear & Corrosion Protection: Pipeline linings, cyclone liners, nozzles, and tiles for cement plants and mining.
Electrical & Electronics: Substrates, insulating plates, and components for the electronics industry.
General Engineering: Grinding media, thread guides, dies, and custom-designed jigs and fixtures.
Why Choose Our Dense Alumina Ceramics?
Alumina ceramic's unique combination of properties--high hardness, excellent wear and corrosion resistance, electrical insulation, and cost-effectiveness--makes it an irreplaceable material for solving complex engineering challenges. We offer tailored solutions with custom shapes, sizes, and machining to meet your precise specifications.
Request a Custom Quote
Interested in using dense alumina ceramic for your application? Contact our engineering team today with your requirements for a consultation and a competitive quotation.
