Sapphire Glass Disc with Positioning Flat D50mm to 150mm
Size( D=diameter * T=thickness )
Sapphire Glass (Synthetic Sapphire) is an exceptionally hard, transparent material made from pure single-crystal aluminum oxide (Al₂O₃).
Key Characteristics:
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Extreme Hardness: Mohs scale 9, highly scratch-resistant.
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Excellent Optical Clarity: High transparency from UV to IR wavelengths.
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Superior Durability: Chemically inert, thermally stable (melts at ~2053°C), and mechanically strong.
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Electrical Insulator: Excellent dielectric properties.
Common Uses: Watch crystals, smartphone camera covers, LED/semiconductor substrates and military/optical windows.
Note: Despite being called “glass,” it is a single crystal, not an amorphous glass.





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