High‑purity T‑shaped Alumina Ceramic Stud Pin Al2O3 Locating Dowel Pin
High‑purity T‑shaped Alumina Ceramic Stud Pin Al2O3 Locating Dowel Pin
Alumina ceramic part is produced by firing a tightly packed powder form of Al2O3 which includes some binder material. Commercially available grades range from 90% up to 99.95% with the higher purity generating somewhat higher hardness. Alumina Ceramics are the most highly regarded and widely used of the ceramic products. It is non-conductive, resistant to corrosion, and are perfect for electrical insulation. Alumina Ceramic has proven to be the best ceramic for protection of vital electrical components. It can be processed as tubing, sheets, bars, rods, discs, and many other forms depending on the requirements of the project.
T‑Shaped Alumina Ceramic Stud Pin
High‑purity alumina (Al₂O₃) ceramic pin with T‑shaped flange head. Outstanding electrical insulation, excellent wear resistance and high‑temperature stability. Low thermal expansion coefficient, high mechanical strength, corrosion‑resistant against most chemicals.
Precision‑machined dimension, consistent surface finish. Widely used for positioning, fastening and insulation in industrial equipment, electronic assemblies and high‑temperature furnaces. Custom sizes and tolerances are available upon request.
Alumina Oxide (Al2O3) Properties:
◆ High Hardness
Strong wear resistance, durable and not easy to wear.
◆ Excellent Thermal Conductivity
The thermal conductivity at room temperature is 30~40W/(m·K), which is higher than that of steel, copper and aluminum.
◆ Good Chemical Stability
Resistant to acid, alkali and salt corrosion.
◆ High Temperature Stability
Withstands 1600℃ high temperature and has high temperature stability.
T‑shaped High‑purity Alumina Ceramic Stud Pin
Our alumina ceramic stud pins are manufactured from high‑grade aluminium oxide ceramic material. The special T‑shape flange head design enables reliable locating and mounting performance.
Key Features
- Superior electrical insulation property for high‑voltage working conditions
- Excellent high‑temperature resistance, maintains mechanical performance at elevated temperature
- High hardness and wear resistance, long service life against friction
- Good chemical inertness, resistant to acid, alkali and organic corrosion
- Low thermal expansion, great dimensional stability under temperature fluctuation
- Precision grinding, tight dimensional tolerance, uniform surface texture
Typical Applications
Mechanical positioning, insulating fasteners, furnace fixtures, electronic equipment, semiconductor equipment and other harsh‑condition industrial scenarios. Custom drawings & specifications are acceptable. We support custom‑made diameter, length and head dimension according to customers’ requirements.
| Chemical Formula | Al2O3 | |
| Mechanical | Density | 3.7 gm/cc |
| Hardness |
2000 Knoop |
|
| Tensile Strength | 28 kpsi | |
| Modulus Of Elasticity | 41 - 46 x 106 psi | |
| Flexural Strength | 51 kpsi | |
| Compressive Strength | 300 - 350 kpsi | |
| Poissons Ratio | 0.21 | |
| Fracture Toughness | 4 - 5 MPa m½ | |
| Electrical | Dielectric Strength | 212 - 220 ac V/mil |
| Dielectric Constant | 9.3 (@ 1 MHz) | |
| Volume Resistivity | > 1014 ohm-cm | |
| Thermal | Coefficient Of Thermal Expansion | 5.2 - 7.9 x 10⁻⁶/°C |
| Thermal Conductivity | 18.0 - 28.0 W/mK | |
| Specific Heat | 0.21 cal/g °C | |
| Shock Resistance | 300 °C Diff. | |
Alumina Ceramics Typical Applications Include:
Wear resistant components,
High pressure nozzles,
Thermocouple tubes,
Electrical Insulators,
Corrosive labware,
Furnace fixtures,
Ballistic armor,
Thread guides,
Laser Tubes,
Pump seals.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.