Sapphire

Estimate pricingPrice on request
Diameter tolerance (General)+0.0/−0.2 mm
Diameter tolerance (High Precision)+0.0/−0.1 mm
Thickness tolerance (General)±0.2 mm
Thickness tolerance (High Precision)±0.05 mm

Your request goes to Changzhou Ricun Optical Technology Co., Ltd. Follow up with them in Messages on Global Trade Plaza.

Supplier based in ChinaOn Global Trade Plaza since Oct 2026Similar products from other sellers

Products Description

Sapphire Crystal Window Sapphire windows are used in some non-ornamental applications, including infrared optical components, such as in scientific instruments; high-durability windows and movement bearings;Due to sapphire's remarkable hardness (third hardest mineral, right behind diamond and moissanite). Features of Sapphire Crystal 1. High-hardness - abrasion resistance 2. Transparency - in the range from ultraviolet to infrared light (0.15 - 5.5 Ã?Âµm) 3. Chemical resistance and heat resistance - resist almost all kinds of acid and alkaline, heat up to 2000 Ã?ÂºC. 4. Suitable for the application of insulation property required. Sapphire Crystal Property Crystal structure: Hexagonal Lattice: a=4.785Ã??, C=12.991Ã?? Density: 3.98g/cm3 Transmission Range: 150-5500nm Melting Point: 2040Ã?Â°C Specific Heat: 0.418 W.s/g/K Thermal Conductivity: 25.12 W/m/K Thermal Shock Resistance: 790 W/m Thermal Expansion Coefficient: 5.8x10E-6/K dn/dT: 13x10E-6/K @633nm Hardness: 9 Mohs Refractive Index: 1.83 @0.26mm, 1.76 @0.63mm, 1.58 @5.57m Sapphire Crystal Applications - UV and IR Optics - Windows for High Temperature and Pressure, Corrosion Resistance, Abrasion Resistance - Heat Sink and Thermocouplers; Semiconductor Wafer Carriers - Electrical Insulators - Thin Film Deposition - Transparent Electronic Substrate - Silicon on Sapphire Wafers; Superconductor Substrate Sapphire Crystal Window Specifications Diameter Tolerance(mm): +0.0/-0.2 (General), +0.0/-0.1 (High Precision) Thickness Tolerance(mm): Ã?Â±0.2 (General), Ã?Â±0.05 (High Precision) Clear Aperture: >75% (Small Size), >90% (Large Size) Parallelism: 3 min. (General), 10 sec. (High Precision) Surface Quality: 80/50 (General), 40/20 (High Precision) Flatness (per 25mm@633nm): Ã?Â»(General), Ã?Â»/4 (High Precision) Bevel (face width x 450 0)

Product Categories

Precious & Semi Precious Stones

Products Specification

Diameter tolerance (General)+0.0/−0.2 mm
Diameter tolerance (High Precision)+0.0/−0.1 mm
Thickness tolerance (General)±0.2 mm
Thickness tolerance (High Precision)±0.05 mm
Clear aperture (Small Size)>75%
Clear aperture (Large Size)>90%
Parallelism (General)3 min
Parallelism (High Precision)10 sec
Surface quality (General)80/50
Surface quality (High Precision)40/20

Supplier information

Basic member

Changzhou Ricun Optical Technology Co., Ltd

China

Business type - Contact Seller

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This sapphire crystal window is an optical component with a hexagonal crystal structure. It transmits light from 150 nm to 5500 nm and withstands temperatures up to 2040 °C. The material resists most acids and alkalis and provides electrical insulation, making it suitable for demanding optical, thermal, and electronic environments.

Specifications are given for general and high-precision levels. Diameter tolerance ranges from +0.0/−0.2 mm (general) to +0.0/−0.1 mm (high precision). Thickness tolerance is ±0.2 mm (general) or ±0.05 mm (high precision). Clear aperture exceeds 75% for small sizes and 90% for large sizes. Parallelism is 3 minutes (general) or 10 seconds (high precision). Surface quality is 80/50 (general) or 40/20 (high precision). Flatness per 25 mm at 633 nm is λ (general) or λ/4 (high precision).

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About Supplier

Changzhou Ricun Optical Technology Co., Ltd is a B2B supplier based in China, listed on Global Trade Plaza since October 2026. Use Inquire now or Chat with supplier to ask Changzhou Ricun Optical Technology Co., Ltd for prices, specifications and documents for Sapphire.

Supplier Details for Sapphire

Member since - Oct 2026
Business Type - Contact Seller
Deals in Product Type - Precious & Semi Precious Stones
Country - China

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Changzhou Ricun Optical Technology Co., Ltd, a B2B supplier from China, dispatches Sapphire primarily through the port at China. Packaging types (e.g., bulk, custom, eco-friendly) and estimated pricing may vary based on order volume and destination. To get detailed logistics and pricing information, use Get a quote or Chat with supplier, or Sign Up for direct supplier interaction.