• Transparent Color Sapphire Crystal Watch Case Al2O3 Single Crystal Hardness 9.0
  • Transparent Color Sapphire Crystal Watch Case Al2O3 Single Crystal Hardness 9.0
  • Transparent Color Sapphire Crystal Watch Case Al2O3 Single Crystal Hardness 9.0
  • Transparent Color Sapphire Crystal Watch Case Al2O3 Single Crystal Hardness 9.0
Transparent Color Sapphire Crystal Watch Case Al2O3 Single Crystal Hardness 9.0

Transparent Color Sapphire Crystal Watch Case Al2O3 Single Crystal Hardness 9.0

Product Details:

Place of Origin: CHINA
Brand Name: zmkj
Model Number: white transparent watch case

Payment & Shipping Terms:

Minimum Order Quantity: 3PCS
Price: by case
Packaging Details: standard plastic case
Delivery Time: 4-6weeks
Payment Terms: T/T, Western Union
Supply Ability: 500pcs per month
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Detail Information

Material: Doped Sapphire Crystal Al2O3 Crystal Color: Blue Or White
Size: Customzied Surface: Polished
Character: Wear-resisting Purity: 99.99%
High Light:

sapphire crystal watch face

,

custom sapphire watch crystal

Product Description

Blue/ Green/ Pink/ Red/ White Sapphire single crystal watch glass case/ Sapphire optical glass for watch lens

Color Sapphire Glass

 

Synthetic sapphire is transparent single crystal 99.99% pure Al2O3 that exhibits a unique combination of physical, chemical, electrical and optical properties: high thermal conductivity, high strength and scratch resistance, hardness (9 on the Mohs scale), transparent in wide range of wavelength, chemical inertness.
High crystal perfection, low reactivity, and appropriate unit cell size make sapphire an excellent substrate in the semiconductor industry for blue light-emitting diodes (LED).
Since Nobel Laureate in Physics Shuji Nakamura used the sapphire substrate in 1990s for LED, the demand of sapphire crystal has been growing rapidly.

It drives development of new markets like general lighting, backside lighting in TV-sets, displays, consumer appliances, aerospace and defense, and other applications

The Advantage of Sapphire Crystal Glass

- High hardness - 9H
- Scratch resistance

- Abrasion resistance
- High mechanical strength
- High temperature resistance
- Good thermal stability
- High optical production rate

 

Properties of sapphire

Physical
Chemical formula Al2O3
Density 3.97 g/cm3
Hardness 9 Mohs
Melting point 2050oC
Max. use temperature 1800-1900oC
Mechanical
Tensile strength 250-400 MPa
Compressive strength 2000 MPa
Poisson's ratio 0.25-0.30
Young's Modulus 350-400 GPa
Bending strength 450-860 MPa
Rapture Modulus 350-690 MPa
Thermal
Linear expansion rate (at 293-323 K) 5.0*10-6K-1(⊥ C)
6.6*10-6K-1(∥ C)
Thermal conductivity (at 298 K) 30.3 W/(m*K)(⊥ C)
32.5 W/(m*K)(∥ C)
Specific heat (at 298 K) 0.10 cal*g-1
Electrical
Resistivity (at 298 K) 5.0*1018 Ω*cm(⊥ C)
1.3-2.9*1019 Ω*cm(∥ C)
Dielectric constant (at 298 K, in 103-109 Hz interval) 9.3 (⊥ C)
11.5 (∥ C)

 

Transparent Color Sapphire Crystal Watch Case Al2O3 Single Crystal Hardness 9.0 0

 

Sapphire Products Detail

 

Transparent Color Sapphire Crystal Watch Case Al2O3 Single Crystal Hardness 9.0 1Transparent Color Sapphire Crystal Watch Case Al2O3 Single Crystal Hardness 9.0 2
 
Transparent Color Sapphire Crystal Watch Case Al2O3 Single Crystal Hardness 9.0 3
 
Process Step
 
        Sapphire body                                  Sapphire rough shape                   Sapphire CNC engraving and milling 
Transparent Color Sapphire Crystal Watch Case Al2O3 Single Crystal Hardness 9.0 4 -------> Transparent Color Sapphire Crystal Watch Case Al2O3 Single Crystal Hardness 9.0 5-------> Transparent Color Sapphire Crystal Watch Case Al2O3 Single Crystal Hardness 9.0 6
 

Company Information

As a prominent manufacturer and exporter who focus on watches and watchparts R&D, manufacturing and sales, we welcome OEM/ODM orders. Our main products including Watches, Watch Parts such as: case, face, glass, straps, bezel inserts, hands, etc., which are all manufactured by high grade raw material and designed in compliance with high quality standard.
We regard "High-quality, Reasonable prices and satisfactory after-sales" as our tenet, offer clients with not-only top notch products but also best after-sale services. All our products are acclaimed for its durability, stylish look and high performance in this domain. Warmly welcome potential buyers to contact us, and looking forward to establishing long term mutually beneficial relationship with you!.
FAQ:
Q1: How can I get the price and consult for product details?
A1: Send enquiry via  Email, Skype, Wechat or Call us directly.
 
Q2: What is your main product? OEM/ODM ?
A2:Thermal interface material, Sapphire Glass products, Die cut service for industrial etc.
&OEM/ODM is available. For details, please kindly contact the sales persons.
 
Q3: What is your service?
A3: 24 hours online service is our promise.
 

Q4: How is your quality of products and quality guarantee policy?
A2: 100% full test before shipping and 100% compliance with the request of clients.
 
Q4: What is the payment method?
A3: T/T, Western Union, L/C, Paypal,Etc.
 
Q5: What is the delivery time?
A5: Normally 20-40 working days after payment received. But it depends on exactly situation.
 
Q6: What package do you use for the products?
A6: Safe and standard packing for export shipment (PE film cover, kraft paper/bubble bags parcel, and pack into carton or wooden box).

 

 

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