Sapphire Tubes High Hardness DSP Transparent Highly Used for Tough Environment
Product Introduction
Sapphire tubes are high-performance components made from
single-crystal aluminum oxide (Al₂O₃), renowned for their
exceptional hardness, optical clarity, and resistance to extreme
temperatures and chemical environments. These tubes are widely used
in demanding applications such as optical protection sleeves,
high-temperature reactors, vacuum systems, and fluid transport in
harsh conditions. With excellent light transmission from
ultraviolet to infrared and superior structural integrity, sapphire
tubes provide long-term reliability far beyond that of glass or
quartz.
Product Highlights:
Extremely High Biocompatibility: Sapphire tube has stable chemical properties. It does not react
chemically with human tissues or blood, nor does it release harmful
substances, meeting the biosafety standards for medical implants.
Superior Hardness and Wear Resistance: With a Mohs hardness of 9, second only to diamond, sapphire tube
can resist friction and extrusion when inserted into human blood
vessels or organs. It is not prone to scratches or deformation,
ensuring the structural stability of the catheter.
Excellent High-Temperature Resistance and Chemical Stability: Sapphire tube can withstand high-temperature sterilization (e.g.,
autoclave sterilization) and resist corrosion from chemical
disinfectants such as strong acids and alkalis. It maintains stable
performance even after repeated use.
Good Optical Transmittance: Some sapphire tubes can leverage their
optical properties and work with devices like endoscopes and lasers
.
Product Pictures:
Product Parameters:
| Material Property | Value/Description |
| Chemical Formula | Al₂O₃ (aluminum oxide) |
| Hardness | 9 Moh's |
| Class | Hexagonal-scalenohedral |
| Melting Point | 2053°C (3727°F) |
| Maximum Useful Temperature | 2000°C |
| Surface Quality | 80/50, 60/40, 40/20, 20/10 (Scratch/Dig) |
| Axis Orientation | C-Axis (C-Plane), M-Plane, A-Plane, R-Plane and Random |
| Young's Modulus | 435 GPa |
| Tensile Strength | 275 MPa to 400 MPa |
| Flexural Strength | 480 MPa to 895 MPa |
| Modulus of Rigidity | 175 GPa |
| Density | 3.97 g/cm³ |
| Transmission Range | 190nm to 5 microns |
| Poisson's Ratio | 0.27 - 0.30 |
| Abbe Number (νd) | 72.24 |
| Dimension Tolerance | ± 0.01-0.10mm |
| Thickness Tolerance | ± 0.1mm |
Related Product Recommendation:
High Performance Sapphire Capillary Tubes Thermal Shock Resistance
Q&A:
Q: What is a sapphire tube ?
A: A sapphire tube is a cylindrical component made from synthetic
sapphire (single-crystal aluminum oxide, Al₂O₃), known for its
exceptional hardness, high optical clarity, and resistance to heat
and chemicals.
Q: What are sapphire protection tubes ?
A: Sapphire protection tubes are cylindrical protective components
made of sapphire material. They are mainly used to shield internal
sensitive parts (such as sensors, heating elements, or optical
fibers) from damage in harsh environments, while ensuring the
normal operation of the protected parts (e.g., signal transmission,
heat conduction).
Q: What is a sapphire capillary tube?
A: A sapphire capillary tube is an ultra-thin, hollow cylindrical
component made of sapphire (α-Al₂O₃), typically with an inner
diameter ranging from a few micrometers to hundreds of micrometers.
It combines sapphire’s inherent material advantages with the
structural characteristics of capillary tubes, making it ideal for
scenarios requiring precise fluid delivery, micro-sensing, or
optical signal transmission in harsh environments.
