SHANGHAI FAMOUS TRADE CO.,LTD
| Material | 99.99%Sapphire Crystal |
| Surface | polished |
| Size | Customizable |
| Melting Point | Approximately 2030 °C |
| Mohs Hardness | 9.0 |
| Color | red |
| Brand Name | zmsh |
| Place of Origin | China |
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Product Specification
| Material | 99.99%Sapphire Crystal | Surface | polished |
| Size | Customizable | Melting Point | Approximately 2030 °C |
| Mohs Hardness | 9.0 | Color | red |
| Brand Name | zmsh | Place of Origin | China |
| High Light | Anti Scratching Red Sapphire Crystal ，Red Sapphire Crystal ，9 mohs Red Sapphire Crystal | ||
Red Sapphire Crystal Workpiece – Hardness 9 Mohs, Anti-Scratching, 99.99% Purity
Red sapphire crystal workpieces represent the ultimate engineering excellence. Crafted from 99.99% pure chromium-doped aluminum oxide (Al₂O₃:Cr³⁺), these components combine the legendary Mohs 9 hardness (second only to diamond) with breathtaking ruby-red coloration for applications demanding both uncompromising durability and visual sophistication.
Through advanced Czochralski crystal growth and diamond-tool precision machining, we achieve:
These workpieces maintain their vibrant red hue indefinitely, unaffected by UV exposure or thermal cycling up to 1000°C, making them ideal for high-end watchmaking, luxury instrumentation, and aerospace viewports.
Key Features
1. Material Superiority
2. Optical Excellence
3. Precision Manufacturing
4. Environmental Resistance
5. Customization Options
Applications
1. Horology & Jewelry
2. Industrial Design
3. Optical Engineering
4. Medical Technology
5. Defense Systems
Specifications
| Parameter | Specification |
|---|---|
| Crystal Structure | Hexagonal (R3c space group) |
| Dopant Concentration | 0.8-1.2 wt% Cr₂O₃ |
| Density | 3.98 g/cm³ |
| Young's Modulus | 345 GPa |
| Poisson's Ratio | 0.25 |
| Fracture Toughness | 2.5 MPa·m½ |
| CTE (∥c-axis) | 5.3×10⁻⁶/K |
| Dielectric Constant | 9.3-11.5 (1kHz-10GHz) |
Q&A
Q1: How does red sapphire compare to synthetic ruby?
A1: While chemically similar, our red sapphire has tighter color control (±2% ΔE) and lower inclusion density (<0.1ppm) versus standard rubies.
Q2: Can the red color fade under sunlight?
A2: No - the Cr³⁺ coloration is permanent, stable up to 1200°C with no UV degradation.
Q3: Are conductive coatings available?
A3: Yes - ITO coatings with <20Ω/sq resistivity maintain >80% transmission.
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company
Year Established:
2013
Total Annual:
1000000-1500000
Ecer Certification：
Verified Supplier
SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014. We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components wi... SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014. We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components wi...
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