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[China]
Trade Verify
Address: Room 2-11，No.50 Yunhan Road，Chongqing China
Contact name:Florence Chen
ARH Sapphire Co., Ltd |
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Verified Suppliers
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Customized Flat Sapphire Watch Glass With Transparent Color
FATURES
1.High transmittance
2.High mechanical strength
3.High temperature resistance
4.Scratch resistance
5.Abrasion resistance
6.Customized shape
7.Optional color
These excellent optical, mechanical, thermal, chemical and electrical properties determine its important position and role in the military and civilian fields.
(1) Chemical stability: Sapphire has a high degree of chemical stability and will not be corroded during most chemical reactions.
(2) Mechanical properties: Due to its high hardness and high strength, sapphire single crystal can maintain high strength, wear resistance and high stability in different environments ranging from ultra-low temperature to 1500 ℃ high temperature. At the same time, it is the oxide crystal material with the highest hardness currently known, second only to diamond up to 9 on the Mohs scale.
(3) Optical transmittance: The penetration wavelength range of sapphire single crystal material is 0.19nm-5.5nm, coupled with its excellent chemical stability, abrasion resistance, high hardness and high temperature resistance, make the windows made of sapphire and Sensor optical parts are widely used in high vacuum systems, high temperature furnaces and other harsh environments.
(4) Thermodynamic properties: The melting point of about 2050°C, coupled with superior chemical, mechanical and optical properties, make sapphire crystals widely used in many harsh processing environments.
(5) Wear resistance: Because of its high hardness and transparency, sapphire crystals are often used to make wear-resistant windows or other precision mechanical parts.
(6) Dielectric properties: dielectric insulation and constant dielectric constant.
(7) Sapphire also has high tensile strength, erosion resistance, thermal conductivity, and remarkable thermal shock resistance.
| Property | Specifications |
| Thickness | 0.5-200mm |
| Size Tolerance | ±0.01 |
| Edge Finish | Ground and beveled |
| Surface Quality | 40-20 scratch-dig |
| Surface Flatness | λ/4@633nm |
| Parallelism | ≤3 arc min(≤0.9mrad) |
| Clear Aperture | ＞80% of central diameter |
| Hardness(Knoop) | 1370 kg/mm2 |
| Young's modulus | 3.4*1011N/m2 |
| Thermal Limit | 22W/m/K |
| Thermal expansion coefficient | 8.4*10-6/K |
Why US?
1. We’re the rare source manufacturer of color sapphire boule, and the most professional factory of sapphire processing, especially the special watch case.
2. We have our own sapphire grown equipent with CZ and KY method.
3. Professional customized production according to the drawing provided by clients.
4. Precision work of sapphire processing and polishing.
5. Experienced technicians and skilled workers.
FQA
1. Are you a trading company or factory?
We are a professional factory of sapphire products, also a trading company .
2.Can you do customized products?
Yes, we specialized in customized production or OEM work.
CAD,3D drawing are needed.
3.Could you provide samples?
Yes, we could provide samples with a charge, but if you place the order with a quality above 100pcs, the sample charge will be refunded.
4.What’s the delivery time?
It depends on the type of products and the quality.
For watch case, the regular time is around 5-8 weeks for 200pcs according to the difficulty of the processing.
5.How about the payment?
T/T payment is prefered.
6.How about the delivery?
Mostly by air, like DHL, Fedex.
