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Aluminum oxide (Al₂O₃) ceramic tubes offer exceptional thermal stability, optimized wear resistance, and superior mechanical durability. Designed for industrial applications, they ensure precise fluid transport, extended lifespan, and high-performance structural integrity.
Product Overview:
Aluminum oxide (Al₂O₃) ceramic tube is a high-hardness, high-wear-resistant, and lightweight ceramic material. It offers excellent mechanical properties and resistance to chemical corrosion. It is widely used in various industrial applications that require high-temperature, high-pressure, and harsh environmental conditions, especially for parts subjected to wear and corrosion.
Product Features:
- High Hardness:Rockwell hardness of HRA 80-90, second only to diamond.
- Excellent Wear Resistance:Wear resistance is 266 times that of manganese steel and 171.5 times that of high-chromium cast iron.
- Lightweight:Density is only half that of steel, reducing equipment load.
- High Temperature Resistance:Can withstand high temperatures and harsh working environments.
- Corrosion Resistance:Resists chemical and acid-alkali corrosion.
Applications:
- Mechanical Manufacturing:Used for manufacturing wear-resistant and corrosion-resistant components, especially in high-wear environments.
- Chemical Industry:Handles highly corrosive substances, such as acids, alkalis, and salts.
- Electronics and Electrical:Used as high-temperature, insulating components in electronic devices.
- Mining Industry:Suitable for high-wear tasks such as ore processing and slag treatment.
- Aerospace:Used in aerospace components to reduce weight and improve wear resistance.
| Property | Unit | ≥95 | ≥99 | ≥99.5 | ≥99.8 |
| Bulk Density | g/cm³ | 3.7 | 3.8-3.85 | 3.85 | 3.85 |
| Hardness | MPa≥ | 86 | 88 | 88 | 88 |
| Bending Strength | HRA≥ | 300 | 350 | 400 | 400 |
| Max Service Temp | ℃ | 1500 | 1500 | 1500 | 1500 |
| Linear Expansion Coefficient | ×10⁻⁶/℃ | 7.5 | 8.2 | 8.2 | 8.2 |
| Dielectric Constant | tr (20℃, 1MHz) | 9 | 9.2 | 9.2 | 9.2 |
| Dielectric Loss | tanδ×10⁻⁴, 1MHz | 3 | 2 | 2 | 2 |
| Volume Resistivity | cm (20℃) | 10¹³ | 10¹⁴ | 10¹⁴ | 10¹⁴ |
| Breakdown Strength | kV/mm, DC≥ | 20 | 20 | 20 | 20 |
| Acid Resistance | mg/cm²≤ | 0.7 | 0.7 | 0.7 | 0.7 |
| Alkali Resistance | mg/cm²≤ | 0.2 | 0.1 | 0.1 | 0.1 |
| Wear Resistance | g/cm²≤ | 0.2 | 0.1 | 0.1 | 0.1 |
| Compressive Strength | MPa≥ | 2500 | 2500 | 2500 | 2800 |
| Flexural Strength | MPa≥ | 200 | 350 | 350 | 350 |
| Elastic Modulus | GPa | 300 | 350 | 350 | 350 |
| Poisson's Ratio | Lateral Strain Coefficient | 0.2 | 0.22 | 0.22 | 0.22 |
| Thermal Conductivity | W/m·K (20℃) | 20 | 25 | 25 | 25 |
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