Product type: Borosilicate Glass. Application: Door, Window, Heat Resistant Glass. Model: 10144. Function: Optical Function, Electromagnetic Function, Thermal Function, Biological and Chemical Function.
Overview
The Borosilicate Float Glass Sheet DIN7080 Sight Glass is supplied as a sight / viewing glass made from Borosilicate 3.3 (Borofloat type), low thermal expansion coefficient. Listed geometry: plate shape. Temperature Heat Resistant Glass. Listed for Home Appliance 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 (Borofloat type), low thermal expansion coefficient |
|---|---|
| Type | Borosilicate Glass |
| Shape | Plate |
| Application | Home Appliance |
| Usage | Door, Window, Heat Resistant Glass |
| Model NO. | 10144 |
| Structure | Float Glass |
| Moh's Hardness | 7 |
| Function | Optical Function, Electromagnetic Function, Thermal Function, Biological and Chemical Function |
| Transparency | Transparent |
| Processing Method | Float Processing |
| Preparation Process | Float Processing |
| Color | Tranparent |
| Materials | Borosilicate 3.3 Glass |
| Temperature | Heat Resistant Glass |
| Property | Low Thermal Expansion |
| Long time (>10h) | 500℃ |
| Stock size | 1150*850mm /1700*1150mm |
| Supplier | Jinan Everest Glass Company Limited. |
Technical data
| Density (25℃) ρ | 2.23±0.02g/cm3 |
|---|---|
| Modulus of elasticity | 68kN/mm2 |
| Co-efficient of expansion(20-300℃) | 3.3±0.1×10-6 |
|---|---|
| Softening point | 820±10℃ |
| Strain point | 516±10℃ |
| Heat conductivity at 90℃ | 1.2W/mk |
| Caloricity | (20-100℃) 0.82KJ × (kg×K)-1 |
| Thermal shock resistanceStrengthening type | 180K300K |
| Identical temperature differenceStrengthening type | 100K300 K |
| Maximum working temperatureShort time (<10h):Long time (>10h): | 500℃450℃ |
| Water resistance | ISO719/DIN12111 HGB1ISO720 HGA1 |
|---|---|
| Acid resistance | ISO1776/DIN12116 1 |
| Alkali resistance | ISO695/DIN52322 A2 |
What to specify when you request a quote
- Glass type and thickness — listed as “Borosilicate 3.3 (Borofloat type), low thermal expansion coefficient”; name the glass and thickness.
- Temperature and pressure — listed as “Heat Resistant Glass”; give working temperature, thermal shock and any pressure rating.
- Strengthening and safety — state tempering, lamination or the safety standard.
- Outline and edges — listed as “Plate”; send a drawing with outline, holes and edge finish.
Engineering guides for this part
For material grades and coating options, see Borofloat 33 Glass: Material Selection for Precision Substrates. How parts like this are machined and finished is covered in How Borosilicate Glass Is Sandblasted for Matte Surface Processing. For an application example, read Quartz Glass Windows for High-Temperature Appliance Modules. Before sending a drawing, check Quartz Glass Manufacturing: Controlling Thermal Conductivity in Fused Silica. A related standard product is 4-inch Borofloat 33 Glass Wafers.
