Alumina Tube
OD: 2~100 mm
High-Performance Alumina Tubes for Extreme Industrial Applications
Premium Alumina Tubes (Al₂O₃) for Demanding Environments
Edgetech Industries manufactures precision alumina ceramic tubes that deliver exceptional thermal stability, electrical insulation, and chemical resistance. Our Al₂O₃ tubes are engineered to perform in the most challenging industrial conditions, from semiconductor fabrication to high-temperature processing.
Alumina Al2O3 Ceramics
Key Features & Benefits
✔ Exceptional Thermal Resistance – Withstands continuous operation up to 1750°C
✔ Superior Electrical Insulation – Ideal for high-voltage and semiconductor applications
✔ Chemical Inertness – Resists acids, alkalis, and corrosive gases
✔ Precision Dimensions – Available from 2mm to 100mm OD with tight tolerances (±0.5%)
✔ Low Thermal Expansion – Maintains structural integrity under thermal cycling
Specifications of Typical Alumina Ceramics
| Item | Unit | Al2O3 |
| Physical Property | ||
| Color | \ | Ivory, white |
| Density | g/cm3 | 3.85 g/cm3 |
| Purity | % | 99~99.8 |
| Gas Permeability | \ | 0 |
| Water Absorption | 0% | |
| Mechanical Properties | ||
| Mosh Hardness | 92 | |
| Flexural Strength | MPa | 330 |
| Compressive Strength (HV0.5) | MPa | 2000 MPa |
| Fracture Toughness | MPam1/2 | 4 |
| Thermal Properties | ||
| The Max Working Temperature | ℃ | 1650 |
| Thermal Conductivity at room temperature | W/m·k | 27.5 |
| Coefficient of Thermal Expansion | 10-6/℃ | 7.6 |
| Thermal Shock Resistance | △T℃ | 200 |
| Electrical Properties | ||
| Dielectric Strength | KV/mm | > 10 |
| Dielectric Constant | 9.1 | |
| Dielectric Loss Angle(1MHz) | 0.0002-0.0003 | |
| Volume Resistivity | Ω·cm | >1014 |
Customizable for Specialized Applications of Alumina tube
While standard alumina tubes offer reliable performance, we specialize in custom-engineered solutions:
Multiple Purity Grades (96%, 99%, 99.5% Al₂O₃)
Multi-bore Alumina TubesTailored Wall Thicknesses
Special Surface Finishes (as-fired, polished, or ground)
Non-Standard Lengths & Configurations
Note: Properties may vary based on manufacturing processes—consult our engineers for application-specific recommendations.
Available Services:
Small-batch prototyping
Full production runs
Metallization & brazing prep
Material certification & test reports
- Multi-bore Alumina Tubes
Industrial Applications
Our alumina tubes are critical components in:
1. Semiconductor & Electronics Manufacturing
CVD reactor components
Ion implantation parts
Wafer processing equipment
Al2O3 Tubes
2. High-Temperature Environments
Thermocouple protection sleeves
Kiln furniture & furnace linings
Gas injection systems
3. Industrial Machinery
Wear-resistant liners
Hydraulic system components
Electrical insulation bushings
4. Research & Laboratory Equipment
High-purity sample holders
Corrosion-resistant reaction tubes
Secure Packaging & Global Shipping
We protect every alumina tube with:
Alumina Tube Part
Shock-Absorbent Foam Inserts
Reinforced Double-Wall Cartons
Vacuum Sealing for Moisture Protection (upon request)
Custom Crating for Large Orders
Why Choose Edgetech Alumina Tubes?
10+ Years of Advanced Ceramics Expertise
ISO-Certified Manufacturing
Rigorous Quality Control
Technical Support from Material Engineers
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