Sapphire windows/ lenses for watch
USD $1 - $1 /Piece
Min.Order:10 Pieces
Beijing Sunenrich Technology Co., Ltd.
The advantages of sapphire materials:
Sapphire single crystal, which is made up of single material Al2O3, has excellent properties. So right now it is widely used in optical instruments, LED and microelectronics substrates.
The properties of Sapphire
Material | Density | Crystal Structure | Lattice Constant | Mohs Hardness | Melting Point | Boiling Point |
α-Al2O3 | 3.95~4.1g/cc | Hexagonal | a=4.78Å, c=12.99Å | 9 | 2045oC | 3000oC |
TCE | Specific Heat | Thermal Conductivity | Reflective Index | dn/dt | Light Transmittance | Dielectric Constant |
5.8ppm/K | 0.418W.s/gK | 25.12W/mK | n0=1.768, ne=1.76 | 13ppm/K @633nm | ~80% | 11.5//c, 9.3⊥c |
The specifications of the Sapphire wafers we provide:
Name: Sapphire Windows/ Lenses
Materials: Sapphire
Size: Customized
Thickness: Customized
Tolerance: +/-0.05mm
Shape: Regular or irregular, plano or convex
Surface Roughness: Ra<0.3 nm
Coating: Customized
Packaging and Global Express
5x24h Service
Focusing on the application of new energy & new materials fields, SunEnrich Technology Co., Ltd (SER), combined with Chinese Academy of Sciences (CAS), University of Science & Technology Beijing (USTB), China Iron & Steel Research Institute Group (CISRI), General Research Institute for Nonferrous Metals (GRINM), dedicate to the R&D and the application of rare metals (please check the pic. of SER’s materials). We have three manufactories located in Beijing, Shanxi Province and Guangdong Province. Beijing company is the R&D center; Shanxi company engages in rare metal materials; and Guangdong company is for the machining.
Our products are widely used in aerospace, semiconductor, medical equipment, automotive industry and other fields, the products are exported to Europe, America, Southeast Asia and Taiwan region.
1,Office Located in Chaoyang distract, Beijing
2,Sapphire Single Crystal & Machining Factory Located in Hebei (Share Holder)
3, Machining Factory located in Hebei (Shareholder)
Pl contact us:
Mr.Boris (Dirrect of marketing) ,+86-10-5773 8217
Ms.Du (QA) , +86-10-5773 8127
Doc.Zhang (CTO), +86-10-5773 8128
Mr.Cao ( supply chain management ), +86-10-5773 8129