Product type: Fireproof Glass. Application: Furniture, Door, Building, Window. Function: Optical Function, Electromagnetic Function, Thermal Function, Mechanics and Mechanical Function, Biological and Chemical Function.
Overview
The Borosilicate 4.0 Floated Glass Sheet, Borosilicate 4.0 Fire Proof Glass. is supplied as a precision glass plate / sheet made from Borosilicate 4.0. Listed geometry: thickness 5mm / 6mm / 8mm / 10mm / 12mm, plate shape. Optical / electrical data: transmittance 91%92%, sheet resistance Acid & Alkali Resistant, Anti-Oxidation. Flatness High Flatness, No Optical Distortion; temperature -50℃ ~ 500℃. 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 4.0 |
|---|---|
| Type | Fireproof Glass |
| Shape | Plate |
| Thickness | 5mm / 6mm / 8mm / 10mm / 12mm |
| Flatness | High Flatness, No Optical Distortion |
| Application | Home Appliance |
| Usage | Furniture, Door, Building, Window |
| Structure | Solid |
| Moh's Hardness | 10 |
| 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 |
| Glass Type | Fire Resistant High Temperature Sight Glass |
| Customize Shape | Square / Rectangle / Custom Irregular Shape |
| Process | Cutting, Polishing, Drilling, Rounding |
| Application Area | Building, Industrial Equipment, Kitchen, Fireplace |
| Anti-Fogging | No Fog or Discoloration in Humid High-Temp Environ |
| Chemical Resistance | Acid & Alkali Resistant, Anti-Oxidation |
| Impact Resistance | High Toughness, Non-Sharp Fragments When Broken |
| Thermal Shock Resistance | Resist 800℃ Temp Difference Without Crack |
| Working Temperature | -50℃ ~ 500℃ |
| Thermal Expansion Coefficient | 4.0±0.1 ×10/K (20300ºC) |
| Softening Point | ≥845ºC |
| Continuous operating temperature | 50ºC ~ 500ºC |
| Instant thermalshock resistance | withstand |
| Fire resistance integrity rating | E30E180 (30180 minutes, subject to glass thickness) |
| Longtime openflame burning | no crack, no burst, zero spontaneous breakage risk compared with ordinary tempered sodalime glass. |
| Visible light transmittance | 91%92% |
| Density | 2.28±0.02 g/cm³ (25ºC) |
| Stock Thickness | 5mm, 6mm, 8mm, 10mm, 12mm |
| Max sheet dimension | 1500×3000mm; custom sizes available per drawing |
| Edge options | Fine flat polish, rounded corner, chamfer |
| Deep processing | Custom cutting, holedrilling, notching, silkscreen printing |
| Available documents | Fireresistance test reports, factory inspection COA, ISO qualitysystem documents. |
| Supply mode | Factory direct wholesale, engineering bulk order, small sample order acceptable. |
| Export package | Plywood wooden crate with cork separators, anticollision exportgrade packaging. |
| Supplier | Jinan Honhai Glass Company Limited |
What to specify when you request a quote
- Material — listed as “Borosilicate 4.0”; name the glass or quartz grade.
- Outline and thickness — listed as “5mm / 6mm / 8mm / 10mm / 12mm”; give outline, thickness and tolerances.
- Holes, slots and features — listed as “Plate”; dimension every hole and its position tolerance on the drawing.
- Edges — listed as “Fine flat polish, rounded corner, chamfer”; state edge finish and chamfer.
- Surface — listed as “High Flatness, No Optical Distortion”; state polish and flatness where they matter.
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 Glass Wafer Cutting, Dicing, and Coring: Precision Manufacturing Process. For an application example, read Laser Cut Glass Covers for Appliance LED Packaging: A Buyer’s Guide. Before sending a drawing, check Precision Glass Material Selection: Fused Silica vs Borosilicate & More. A related standard product is Custom Special-Shaped Glass Plate.
