Function: Heat Absorbing Glass, Heat Reflective Glass.
Overview
Ar Coated Tempered Glass/Toughened Glass for Lighting, Customized 2mm-10mm Thickness: a building / safety glass made from Borosilicate. Listed geometry: size Customized, thickness 3.3mm, Custom, curve, flat shape. Optical / electrical data: transmittance 90%. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Borosilicate |
|---|---|
| Shape | Curve, Flat |
| Size | Customized |
| Thickness | 3.3mm, Custom |
| Transmittance | 90% |
| Function | Heat Absorbing Glass, Heat Reflective Glass |
| Keyword | Lighting Glass |
| Keyword 1 | Cover Glass |
| Keyword 2 | Toughened Glass |
| nd | 1.47384 |
| Light transmission | 92%thickness≤4mm,91%thickness≥5mm |
| Processing & Advantage | Packing and delivery |
| Supplier | DONGGUAN SAIDA GLASS CO.,LTD |
Technical data
| Physical Property | |||||
| No. | Physical performance | Numerical Value | Unit | ||
| 1 | Coefficient of mean linear thermal expansion(20°C,300°C) | 3.3±0.1 | 10-6K-1 | ||
| 2 | Transformation temperature | 525±15 | °C | ||
| 3 | Softening point | 820±10 | °C | ||
| 4 | Working point | 1260±20 | °C | ||
| 5 | Density at 20°C | 2.23±0.02 | g/cm3 | ||
| 6 | Mean thermal conductivity(20°C-100°C) | 1.2 | w/m2k | ||
| 7 | Refractive index | 0.92 | 1 | ||
| Main Composition | |||||
| SiO2 | B2O3 | Na2O+K2O | Al2O3 | ||
| 81 | 13 | 4 | 2 | ||
| Chemical Property | |||||
| Hydrolytic resistance at 98°C | ISO719-HGB 1 | ||||
| Hydrolytic resistance at 121°C | ISO720-HGA 1 | ||||
| Acid resistance Class | ISO1776-First Class | ||||
| Optical Property | |||||
| Refractive: | nd : 1.47384 | ||||
| Light transmission: | 92%thickness≤4mm,91%thickness≥5mm |
| our company equipment |
| 1.Dust free painting room |
| 2.Automatic acid etching producing line |
| 3.Automatic circularly hot bending furnace |
| 4.Finland Tamglass tempering furmance |
| 5.CNC Water jet cutting maching computer controlled processing machine |
What to specify when you request a quote
- Glass type and thickness — listed as “Borosilicate”; name the glass and thickness.
- Temperature and pressure — give working temperature, thermal shock and any pressure rating.
- Strengthening and safety — state tempering, lamination or the safety standard.
- Outline and edges — listed as “Curve, Flat”; send a drawing with outline, holes and edge finish.
Engineering guides for this part
For material grades and coating options, see Custom Borosilicate Glass Sheets Cut to Size: Precision and Performance. How parts like this are machined and finished is covered in Precision Glass Cutting Quality Control for Custom Plates & Wafers. For an application example, read Quartz Glass Windows for High-Temperature Appliance Modules. Before sending a drawing, check Technical Guide to Glass Thickness and Flatness Requirements. A related standard product is AR-Coated High-Transparency Optical Glass.
