Sapphire optical glass tube 99.999% Al2O3 high hardness 9.0
polished customized size
A sapphire tube is a transparent tubular material manufactured from high-purity
monocrystalline sapphire (Al₂O₃) through precision processing. It
combines exceptional optical, mechanical, and chemical performance.
Its core features include ultra-high hardness (Mohs hardness of 9), extreme thermal resistance (operational stability up to 2000°C), corrosion resistance (stable in strong acids and alkalis), and broad-spectrum transparency (0.15–5.5 μm wavelength range). Sapphire tubes are widely utilized in advanced industries such
as semiconductors, chemical engineering, optical instruments, and
medical devices
Key Features of Sapphire tubes
1. High Transparency and Optical Performance
Sapphire tubes exhibit excellent light transmittance (0.15–5.5 μm)
with minimal optical loss (<0.1–0.3 dB/cm), making them ideal
for laser transmission, optical windows, and fiber optic
connectors.
2. Extreme Environmental Durability
· Thermal Resistance: Sustained operational temperatures up to 1600–2000°C, with
short-term tolerance up to 2050°C.
· Chemical Resistance: Superior to quartz in resisting acids, alkalis, fluorine, and
plasma.
· Mechanical Strength: Compressive strength 4x higher than quartz, suitable for
high-pressure reactors and precision instruments.
3. Dimensional Customization and Precision
· Customizable Sizes: Outer diameter (3–300 mm), inner diameter (0.8–25 mm), and
length (up to 250 mm).
· Precision Machining: Utilizes CNC milling, diamond tools, and Edge-Defined Film-Fed
Growth (EFG) methods to achieve concentricity errors <0.02 mm
and surface roughness ≤Rz0.1.
Primary applications of Sapphire tubes
1. Semiconductor and Electronics
Used in crystal growth furnaces, LED substrates, and high-voltage
devices, replacing quartz to eliminate contamination and ensure
production purity.
2. Energy and Chemical Engineering
· Petrochemical: Heavy oil reactors, high-temperature burners, and acid-resistant
equipment.
· Hydrogen Energy: High-pressure hydrogen production conduits.
3. Optics and Medical Systems
· Laser Systems: UV lamp windows, laser transmission optics, and fiber couplers.
· Medical Devices: Endoscopes and laser surgical tools, leveraging biocompatibility
and thermal stability.
4. Aerospace and Defense
Engine temperature monitoring systems, missile guidance components,
and high-temperature pressure sensors.
Related products
Sapphire tubes, with their unmatched physical and chemical
properties, serve as critical materials in high-end industrial
and technological sectors. Leveraging precision machining
technology and customized services, ZMSH provides
high-transparency, extreme-environment-resistant sapphire tubes. We
are committed to advancing industries such as semiconductors,
energy, and optics. As technology evolves and application scenarios
expand, sapphire tubes will continue to play a strategic role in
next-generation innovations.
Sapphire rods small size:
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