Product type: Sheet Glass. Application: Building, Furniture, Home Appliance, Electronics & Instruments, Auto Manufacturing, Daily Products.
Overview
The OEM Factory Custom 2-8 mm Clear Ar Tempered Round Step Extra White Polished Edges Flatboat Glass for Underground Light Lamp Cover LED Glass is supplied as an LED / OLED cover glass made from Borosilicate 3.3 Glass. Listed geometry: diameter 3-100mm, size Customized, thickness 2-19mm. Optical / electrical data: transmittance >92%. Flatness High Class; temperature 550 Degrees. Listed for Borosilicate Glass Sheet, Pyrex Glass Sheet and Gauge G applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Borosilicate 3.3 Glass |
|---|---|
| Type | Sheet Glass |
| Diameter | 3-100mm |
| Size | Customized |
| Thickness | 2-19mm |
| Flatness | High Class |
| Application | Borosilicate Glass Sheet,Pyrex Glass Sheet,Gauge G |
| Usage | Building, Furniture, Home Appliance, Electronics & Instruments, Auto Manufacturing, Daily Products |
| Standard | GB15763.2-2005 |
| Steel Degree | Tempered Glass |
| Fragment State | Ⅲ |
| Technics | Physically Tempered |
| Color | Transparent,Clear |
| Production Process | Holes, Polished Edges, Shaped Design Size |
| Edges Treatment | Safe/Smooth Edge |
| Light Transmittance | >92% |
| Working Temperature | 550 Degrees |
| Bulk Modulus | 93*103 M PA |
| Hardness | 7 |
| Boron | 12.5~13.5%, silicon: 78~80% |
| Supplier | Qingdao Tsing Glass Co., Ltd. |
Technical data
| Product Name | Heat Resistance High Borosilicate Glass 3.3 |
|---|---|
| Thickness | 2-19mm |
| Temperature resistance | 650ºC |
| Color | transparent clear |
| Transmittance | 92% |
| Density | 2.23 g/cm3 |
| Morris hardness | 7 |
| Composition content | Boron: 12.5~13.5%, silicon: 78~80% |
| Shape | Round, Square with holes, uncommon shape etc. |
| Modulus of elasticity | 63·103N·mm-2 |
| Poisson's ratio | 0.18 |
| Tensile strength | 4.8x107pa(N/M2) |
| Compressive strength | (0-300) 3.3±0.1×10-6K-1 |
| Thermal conductivity | 1.2W·m-1·k-1 |
| Annealing point | 560°C |
| Softening point | 820±10°C |
| Electrical resistivity | >1018 Ωm |
| Dielectric constant | 4.6 1 MHz, 25 |
| Water resistance | ISO719 HGB Level 1 |
| Acid resistance | ISO195 HGB Level 1 |
| Alkali resistance | ISO695 HGB Level 2 |
What to specify when you request a quote
- Glass type and thickness — listed as “Borosilicate 3.3 Glass”; name the glass (soda-lime, aluminosilicate, borosilicate) and thickness.
- Strengthening — listed as “Physically Tempered”; state thermal tempering or chemical strengthening and the required surface compression or impact rating.
- Printing and coatings — listed as “Building, Furniture, Home Appliance, Electronics & Instruments, Auto Manufacturing, Daily Products”; list silk-screen colours, windows, and any AR / AG / AF coating.
- Outline and edges — listed as “Customized”; send a drawing with cut-outs, holes and edge finish.
- Optical requirements — listed as “>92%”; give transmission, haze or gloss targets for the viewing area.
Engineering guides for this part
For material grades and coating options, see LED Cover Glass Material Guide for Optical Encapsulation. How parts like this are machined and finished is covered in Glass Etching for LED & OLED Module Covers: Process, Quality, and Scalability. For an application example, read Custom LED Cover Glass for Home Appliance Indicator Panels. Before sending a drawing, check Design Guide for Holes, Slots, and Edges in Custom Glass Parts. A related standard product is Etched Glass Cover for LED/OLED Packaging.
