Gold Member Since 2013
Audited Supplier
Nanjing April Electro-Optics Co., Ltd.

Sapphire, Optical Material manufacturer / supplier in China, offering Sapphire, Optical Biconcave Lens, Quartz Glass Lens and so on.

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FOB Price: Get Latest Price
Min. Order: 1 Piece
Port: Shanghai, China
Production Capacity: 30000PCS/Month
Payment Terms: T/T

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Basic Info
  • Model NO.: Nothing
  • Type: Sapphire Materials
  • Shape: Custom-Made
  • Lenses Color: Customized
  • Customized: Customized
  • Trademark: APRIL
  • Specification: Sapphire
  • HS Code: 9002909090
  • Usage: Optical
  • Transmittance: >95%
  • Material: Sapphire
  • Certification: ISO9001
  • Coating: Customized
  • Transport Package: Standard Carton and Envelop with Plastic Foam
  • Origin: Nanjing
Product Description

Composition: 99.996%Al2O3(Lewo sapphire)
Crystal structure: Hexagonal-rhombohedral
Density: 3.98g/cm3
Melting temperature: 2050 0C
Mohs hardness: 9
Knoop hardness: C: 2200
Flexural strength: 5000-7000kg/cm2
Compressive strength: 3.0GNm-2
Young's modulus: 4.6x10-2GNm-2(25oC)
Coefficient of liner thermal expansion: C: 5.0x10-6/0C(50oC)
C: 6.6x10-6/0C(20-50oC)
No(Refraction index @λ =589.3nm): C: 1.768
Optical transmission(1mm THK. )0.15-6μ M T>86%
Dielectric constant at 1MHz: C: 9.3 (103-1010Hz, 25oC)
Resistivity >1016Ω . Cm
Chemical resistance: Will not be Eroded by acids or alkalis at normal temperature
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Miss Qian
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