Product type: Borosilicate Glass Sheet. Application: Furniture, Door, Building, Window, Optical Glass. Model: KGB301. Function: Optical Function, Electromagnetic Function, Thermal Function, Mechanics and Mechanical Function, Biological and Chemical Function.
Overview
The High Quality Borofloat Glass Sheet & Borosilicate Wafer is supplied as a fused silica / quartz wafer made from Borosilicate 3.3 Float Glass. Listed geometry: thickness 2.0-20mm, rectangle, customized. shape. Temperature 450 Degree C. It is used in Industrial Glass, Heat-Resist and Fire-Resist. 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 Float Glass |
|---|---|
| Type | Borosilicate Glass Sheet |
| Shape | Rectangle, Customized. |
| Thickness | 2.0-20mm |
| Clear Aperture | 90% |
| Application | Industrial Glass, Heat-Resist, Fire-Resist |
| Usage | Furniture, Door, Building, Window, Optical Glass |
| Model NO. | KGB301 |
| Structure | Solid |
| Moh's Hardness | 7 |
| Function | Optical Function, Electromagnetic Function, Thermal Function, Mechanics and Mechanical Function, Biological and Chemical Function |
| Transparency | Transparent |
| Processing Method | Doping |
| Preparation Process | Fusion Method |
| Color | Clear |
| Working Temperature | 450 Degree C |
| Supplier | Nanyang Kylin Special Glass Co., Ltd. |
Technical data
| Density | 2.23g/cm3 |
|---|---|
| Softening Point | 820ºC |
| Annealing Point | 560ºC |
| Thermal Conductivity(20ºC) | 1.2W/m·ºC |
| Coefficient of Thermal Expansion | 3.3×10-6cm/cm·ºC |
| Working Temperature(short time) | 500ºC |
| Working Temperature(long time) | 450ºC |
| Endure Water(98ºC) | ISO719-HGB1 |
| Endure Water(121ºC) | ISO720-HGA1 |
| Acid Resistance | ISO1776-1 |
| Alkali Resistance | ISO695-A2 |
What to specify when you request a quote
- Diameter and flat / notch — state diameter, flat or notch and their tolerances.
- Thickness and TTV — listed as “2.0-20mm”; give thickness, its tolerance and total thickness variation.
- Polish and roughness — specify single- or double-side polish and roughness.
- Flatness, bow and warp — quote flatness, bow and warp limits.
- Material grade — listed as “Borosilicate 3.3 Float Glass”; name the grade (JGS1/JGS2, Borofloat 33, alkali-free, sapphire orientation).
Engineering guides for this part
For material grades and coating options, see Fused Silica Wafer Production: A Step-by-Step Manufacturing Guide. How parts like this are machined and finished is covered in Precision Glass Wafer Dicing: Fused Silica & Borofloat Process Guide. For an application example, read Fused Silica Glass Wafers for Precision Appliance Electronics. Before sending a drawing, check Quartz Glass Manufacturing: Controlling Thermal Conductivity in Fused Silica. A related standard product is Fused Silica Glass Wafers (2–12", JGS1/JGS2).
