CG MATERIAL
Sapphire Rod
Sapphire Rod
CG Material manufactures high-purity single crystal sapphire rods with exceptional hardness, wear resistance, optical transmission, and thermal stability.
Our sapphire rods are available in custom diameters, lengths, crystal orientations, and surface finishes to meet demanding requirements in semiconductor processing, optical systems, medical devices, analytical instruments, and high-temperature equipment.
Available Options
- Ground Sapphire Rods
- Polished Sapphire Rods
- Optical Grade Sapphire Rods
- Sapphire Guide Rods
- Sapphire Plunger Rods
- Sapphire Light Guide Rods
- Sapphire Insulating Rods
- Custom Sapphire Components
Sapphire Rod Datasheet
| Property | Value |
|---|---|
| Material | Single Crystal Al₂O₃ |
| Purity | 99.99% |
| Density | 3.97 g/cm³ |
| Mohs Hardness | 9 |
| Young's Modulus | 470 GPa |
| Flexural Strength | 690 MPa |
| Compressive Strength | 2940 MPa |
| Thermal Conductivity | 42 W/m·K |
| Melting Point | 2053°C |
| Refractive Index | 1.76–1.77 |
Custom Sapphire Rod Sizes
| Parameter | Range |
|---|---|
| Diameter | 1.0 mm – 100 mm |
| Length | Up to 1000 mm |
| Surface Finish | Ground / Polished |
| Tolerance | Customized |
| End Shape | Flat / Cone / Dome |
Sapphire Rod vs Quartz Rod
| Property | Sapphire Rod | Quartz Rod |
|---|---|---|
| Hardness | Mohs 9 | Mohs 5.5-7 |
| Density | 3.97 g/cm³ | 2.2 g/cm³ |
| Young's Modulus | 470 GPa | 72 GPa |
| Thermal Conductivity | 42 W/m·K | 1.4 W/m·K |
| Max Temperature | 1800-2000°C | 1100-1200°C |
| Wear Resistance | Excellent | Moderate |
| Optical Transmission | UV-IR | UV-IR |
| Service Life | Longer | Shorter |
Why Replace Quartz Rods with Sapphire Rods?
Compared with quartz rods, sapphire rods offer:
- Higher strength
- Better wear resistance
- Higher temperature capability
- Longer service life
- Superior performance in vacuum and plasma environments
Sapphire Rod Applications
Semiconductor Industry
Used as:
- Wafer handling pins
- Alignment rods
- Insulating supports
- Process chamber components
Optical & Laser Systems
Used as:
- Light guides
- Laser delivery rods
- Optical spacers
- Precision optical components
Analytical Instruments
Used in:
- Spectroscopy equipment
- Scientific instruments
- Laboratory devices
Pumps & Fluid Control Systems
Used as:
- Sapphire plunger rods
- Metering pump components
- Wear-resistant shafts
Medical Devices
Used in:
- Surgical systems
- Diagnostic equipment
- Precision medical instruments
FAQ
What is a sapphire rod?
A sapphire rod is a cylindrical component manufactured from single-crystal aluminum oxide (Al₂O₃), offering exceptional hardness, wear resistance, and optical transmission.
What is the maximum operating temperature?
Sapphire rods can operate at temperatures approaching 1800°C in many industrial environments.
Are custom sizes available?
Yes. Custom diameters, lengths, crystal orientations, and surface finishes are available.
