High Hardness 9.0 Sapphire Optical Glass Tube 99.999% Al2O3 Materials

Place of Origin china
Brand Name zmkj
Model Number tube-028
Minimum Order Quantity 10pcs
Price 100usd/pcs by FOB
Packaging Details PET Films
Delivery Time 20DAYS
Product Details
Materials 99.999% Al2O3 Application Semicondutor Wafer, Led Chip, Optical Glass Window, Electronic Ceramics,bearing
Advantagement High Hardness9.0,wear Resistance, VisVisible Light TransmittanceVisible Light Transmittance 85%
Color Red And White Type Single Crystal
High Light

sapphire bearings


sapphire tube

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Product Description

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1.Why choose the sapphire?
1 - Thinner and Stronger than Standard Glass Windows
2 - Transmits Wavelengths Ranging From UV to Mid-Infrared
3 - Features Extreme Surface Hardness and Chemical Resistance
4inch C-axis sapphire wafer for led epi-ready,optical  glass lens for  covering by sapphire,sapphire optical windows


Sapphire glass products are manufactured from single crystal 99.999%Al2O3, making them ideal for demanding applications (such as laser systems) because of their extreme surface hardness, high thermal conductivity, high dielectric constant and resistance to common chemical acids and alkalis. Sapphire is the second hardest crystal next to diamonds and, because of their structural strength, sapphire windows can be made much thinner than other common dielectric windows with improved transmittance. Chemically, sapphire is single crystal aluminum oxide (Al2O3), and is useful in a transmission range from 0.2 - 5.5µm.


 2.Comparison of optical window materials

     Material                                                 Properties                                      Applications
Transmission Range: 330-2100nm
Refractive Index: 1.5164@588nm  Most popular and low cost  Visible and near IR spectrum applications
Fused Silica
Transmission Range: 185-2500nm          Low Thermal Expansion      UV to IR spectrum
Refractive Index: 1.4858@308nm      Coefficient: 0.54 x 10-6K       Best choice for thermal  resistance  

Transmission Range: 180-4500nm       Strong Hardness   Best choice for scratch resistance applications 
Refractive Index: 1.755@1000nm                                        Thinner optics Wide Transmission Range

Calcium Fluoride
Transmission Range: 170-7800nm        Little Hygroscopic Susceptibility     IR laser applications
Coefficient: 18.85 x 10-6K                           High Thermal Expansion

Refractive Index: 1.399@5000nm
Transmission Range: 120-7000nm                                                              UV laser applications

Refractive Index: 1.376@700nm

3.0 sample in details

High Hardness 9.0 Sapphire Optical Glass Tube 99.999% Al2O3 Materials 1High Hardness 9.0 Sapphire Optical Glass Tube 99.999% Al2O3 Materials 2

High Hardness 9.0 Sapphire Optical Glass Tube 99.999% Al2O3 Materials 3

Typical specifications:

Available orientations: C-axis [0001], R-axis [1-102], A-axis [11-20], M-axis [10-10], Random
Sapphire windows / blanks

 dia0.5-dia400mm, <400x400mm


Diameter / Width: 25.0 - 250.0 mm
Tolerance: Standard ± 1°, Special to ± 0.1°
Thickness: Minimum 0.1, maximum 200.0 mm
Surface finish: As cut, fine ground, lapped, polished s/d 80/50, 60/40, 40/20, 20/10, 10/5, according to the MIL-0-13830A
Ends / Edge quality: Fine ground, 80/50
"As-grown" sapphire tubes: outer 1-200mm

Up to 200 mm inner diameter, 0,5 - 50 mm wall thickness,

300-600 mm tubes length

Orientation C-axis  in the length of the tube
Polished sapphire tubes:

Up to 200 mm inside diameter, 0,5 - 50 mm wall thickness,

10-350 mm tubes length

Ingots: Diameter/Width 5-220 mm, Thickness/Length 5 – 250 mm
Surface quality As-cut, Ends/Edge Quality Diamond cut
4.Process step of sapphire products
High Hardness 9.0 Sapphire Optical Glass Tube 99.999% Al2O3 Materials 4
5.0 FAQ –
Q: What you can supply logistics and cost?
(1) We accept DHL, Fedex, TNT, UPS, EMS, SF and etc by FOB delivery.
(2) If you have your own express number, it's great.

Q: What's the delivery time?
(1) For the standard products such as ball lens, powell lens and collimator lens:
For inventory: the delivery is 5 workdays after order.
For customized products: the delivery is 2 or 3 workweeks after order.

Q: How to pay?
50% deposit ,50% before delivery by T/T, Paypal, West Union, MoneyGram.

Q: What's the MOQ?
(1) For inventory, the MOQ is 3pcs.
(2) For customized products, the MOQ is 10pcs-30pcs.