quartz glass lens
1. Material properties
High Corrosion Resistance
High-temperature resistance
Low Thermal Expansion Coefficient
Working temperature: 1200°C
2. Size and shape
Thickness: 0.5-30mm
Round, Square, Rectangular and Various shapes available.
Physical Properties
Material | Silicon Dioxide (Natural Quartz ) |
Color | Transparent or colorless |
Surface | No Air Bubble ,no process |
Density | 2.2 g/cm 3 |
Degree of Hardness | 5.5-5.6 Moh’s Scale |
Softening Point | 1750 C |
Strain | 1270 C Fused The Quartz Glass Brick |
PPM grade | Controlled 10/20/100 PPM |
Shape | Circle/Square /Rectangle |
Thickness | 0.5 MM-100 MM |
Chemical composition(ppm)
AL | Fe | K | Na | Li | Ca | Mg | Cu | Mn | Cr | B | Ti |
5-12 | 0.19-1.5 | 0.71-1.6 | 0.12-1.76 | 0.38-0.76 | 0.17-1.23 | 0.05-0.5 | 0.05 | 0.05 | <0.05 | <0.1 | <1.0 |
Spectra transmission at1.0mm thickness
mm | <220 | 255 | 280 | 315 | 350 | 38 | 590 | 780 |
% | 89 | 91 | 93 | 93 | 93 | 93 | 93.2 | 93.4 |
Thermal properties
Coefficient of Expansion(20°C~350°C) | 5.5*10-7/°C |
Thermal Conductivity(W/m°C,20°C) | 1.4 |
Specific Heat(J/kg,20°C) | 670 |
Softening Point( viscosity) | 1730°C |
Annealing Point | 1215°C |
Deformation Temperature(long time heat retaining) | 1120°C |
Electrical Properties
Electrical Resistivity(350°C,omh-cm) | 7*107 |
Insulating Strength(20°C,KV/cm) | 250~400 |
Dielectric Constant | 3.7 |
Application
Widely used in Medical, Electronics instrument, Scientific research, Optical industry etc.
We also produce Clear Quartz Plate, Translucent Quartz Plate and other quartz products.
Own factory and warehouse with advanced imported equipment, most valuable professional talents and strict quality control system,16 years experience. With such resources, we promise to satisfy customer's request with our best capabilities.
Qingdao vatti glass co.,ltd is a professional glass manufacturer and international market supplier, dealing with Tempered Glass, Laminated Glass, Insulating Glass, Borosilicate Glass, Ceramic Heat-resistant Glass,Aluminosilicate Glass,Anti-glare Glass, Anti-reflective glass,Glass Tube, Sight Glass, Solar PV Glass,Quartz glass, furniture glass Series,Art Glass Series, Mirror Series,Clear float Glass,Reflective Glass,Tinted Glass and so on.
What are the advantages of quartz glass?
1.superior compressive strength
2.withstands extremely high temperatures
3.high thermal shock resistance
4.low thermal conductivity
5.outstanding optical transmission properties
6.extraordinary chemical resistance
Why choose Qingdao Vatti Glass?
1. 16 years experiences on glass manufacturing and exporting.
2. Top quality glass with CE,CCC certificate, exporting to more 80 countries in the world.
3. Unique designed strong wooden cases, solving the problems of breakage.
4. Dockside warehouses beside three of China main container seaports, ensuring convenient loading and rapid delivery.
5. Full range of flat glass supply, offering one-stop purchase.
6. Professional sales team, offering personalized and dedicated services.
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