Product type: Special Glass/High-Temperature-Resistant Glass. Application: Fireplace, Solar, Laboratory, Sight Glass, etc.. Model: HG-HG01. Function: Optical Function, Thermal Function, Mechanics and Mechanical Function, Biological and Chemical Function.
Overview
Factory Direct High Borosilicate 3.3 Glass Sheet 1.5-25mm Heat Resistant Float Glass Panel for Solar Fireplace Laboratory Industrial: an appliance glass made from Borosilicate 3.3 or Borosilicate 4.0. Listed geometry: flat & curved shape. Typical applications: Home Appliances, Electronics and Industry. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Type | Special Glass/High-Temperature-Resistant Glass |
|---|---|
| Shape | Flat & Curved |
| Application | Home Appliances/Electronics/Industry |
| Usage | Fireplace, Solar, Laboratory, Sight Glass, etc. |
| Model NO. | HG-HG01 |
| Structure | Solid |
| Moh's Hardness | 6.5 |
| Function | Optical Function, Thermal Function, Mechanics and Mechanical Function, Biological and Chemical Function |
| Transparency | Transparent |
| Processing Method | Phase & Crystallization |
| Preparation Process | Fusion Method |
| Color | Black/Clear/White |
| Glass Type | Borosilicate 3.3 or Borosilicate 4.0 |
| Quantity | Number of Pieces or Square Meters |
| Edge & Shape | Polished Edge/Custom Shape/ Round Corners? |
| Drilling / Cutouts | Hole Size and Position (If Needed) |
| Thermal Shock | up to 700c |
| Processing | Cutting, Edging, Drilling |
| Destination Country | for Accurate Shipping Quote |
| Product Types we supplied | Borosilicate 3.3 Float Glass |
| Soda-Lime Glass | Suitable for general applications with no heat exposure. Lowest cost. |
| Borosilicate Glass 3.3 | Best value for applications up to 450°C. Ideal balance of performance and price. |
| Ceramic Glass | Chosen when continuous service exceeds 500°C or thermal shock is extreme (fireplace, furnace). |
| Quartz Glass | Reserved for extreme conditions >800°C requiring ultra-high purity and optical clarity. |
| Standard delivery | 2-3 weeks after order confirmation. |
| Supplier | Qingdao Hitech Glass Co.,Ltd |
Technical data
| Parameter | Specification |
|---|---|
| Product Name | High Borosilicate Glass Sheet / Borosilicate 3.3 Glass |
| Glass Type | Borosilicate 3.3, Borosilicate 4.0 |
| Thickness | 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.3mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm, 10mm, 12mm, 15mm, 18mm, 20mm, 22mm, 25mm |
| Max Sheet Size | 1830×2440mm (customizable) |
| SiO2 Content | 80%+ |
| B2O3 Content | 12-13% |
| Linear Thermal Expansion Coefficient | (3.3±0.1)×10-6/K (20-300°C |
| Density | 2.23 g/cm³ |
| Softening Point | 820°C |
| Annealing Point | 560°C |
| Strain Point | 520°C |
| Refractive Index | 1.47 |
| Light Transmittance (2mm) | 92%+ |
| Elastic Modulus | 76 KN/mm² |
| Thermal Conductivity | 1.2 W/(m·K) |
| Specific Heat | 0.9 J/(g·K) |
| Thermal Shock Resistance | Withstands 200°C+ sudden temperature change |
| Water Resistance (ISO 719) | Grade 1 |
| Acid Resistance (ISO 195) | Grade 1 |
| Alkali Resistance (ISO 695) | Grade 2 |
| Color | Clear / Ultra-clear |
| Surface | Smooth, fire-polished or float finish |
| Shape | Flat & Curved |
| Processing Capabilities | Silk Screen Printing, Drilling & Edge Grinding, Hot Bending, Heat-Strengthened Bending (Curved Tempered) |
| Industry | Application | Recommended Thickness |
| Solar Energy | Solar thermal collector tubes, solar panel cover | 3.0-4.0mm |
| Fireplace & Stove | Fireplace viewing window, wood stove door glass | 4.0-5.0mm |
| Kitchen Appliances | Oven door glass, microwave turntable, glass cooktop | 3.0-5.0mm |
| Laboratory | Beakers, flasks, test tubes, reaction vessels | 1.5-3.0mm |
| Chemical Industry | Reactor sight glass, chemical process windows | 5.0-10mm |
| Lighting | Lamp shade, reflector cup, halogen lamp envelope | 1.5-3.0mm |
| Industrial Equipment | Machine sight glass, pressure gauge cover, level gauge | 5.0-12mm |
| Fire Protection | Fire-resistant windows, fire doors, fire partitions | 6.0-12mm |
| Semiconductor | Wafer cleaning tanks, high-temp vacuum chambers | 3.0-6.0mm |
| Pharmaceutical | Pharmaceutical packaging glass, vials, ampoules | 1.5-3.0mm |
| Parameter | Soda-Lime Glass | Borosilicate Glass 3.3 | Ceramic Glass (Microcrystal) | Quartz Glass |
| Thermal Expansion Coefficient | ~9.0×10-6/K | 3.3×10-6/K | ~0.5×10-6/K (near zero) | ~0.5×10-6/K |
| Softening Point | ~700°C | 820°C | >950°C | ~1,650°C |
| Max Continuous Working Temp | 80°C | 450°C | 560°C | 1,100°C |
| Max Short-Term Working Temp | 120°C | 500°C | 800°C | 1,300°C |
| Thermal Shock Resistance (ΔT) | ~40°C | 200°C+ | 700°C+ | 1,000°C+ |
| SiO2 Content | ~72% | 80%+ | 60-70% (glass-ceramic) | 99.9%+ |
| Density | ~2.5 g/cm3 | 2.23 g/cm3 | ~2.6 g/cm3 | 2.2 g/cm3 |
| Typical Applications | Windows, bottles, containers | Lab equipment, fireplace windows, solar collectors, sight glass | Fireplace doors, cooktop panels, industrial furnace, wood stove | Semiconductor, UV optics, high-temp furnace, precision optics |
| Relative Cost | Low (1/4) | Moderate (2/4) | Medium-High (3/4) | Very High (4/4) |
What to specify when you request a quote
- Glass type and thickness — listed as “Borosilicate 3.3 or Borosilicate 4.0”; name the glass and thickness.
- Temperature and pressure — listed as “up to 700c”; give working temperature, thermal shock and any pressure rating.
- Strengthening and safety — state tempering, lamination or the safety standard.
- Outline and edges — listed as “Flat & Curved”; 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 How Borosilicate Glass Is Sandblasted for Matte Surface Processing. For an application example, read Why Quartz Glass Components Excel in Coffee Heating Modules. Before sending a drawing, check Thermal Conductivity of Quartz Glass & Fused Quartz: A Process Guide. A related standard product is 4-inch Borofloat 33 Glass Wafers.
FAQ
What is the Factory Direct High Borosilicate 3.3 Glass Sheet 1.5-25mm Heat Resistant Float Glass Panel for Solar Fireplace Laboratory Industrial made of? expand_more
It is listed as Borosilicate 3.3 or Borosilicate 4.0. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.
Where is this appliance glass used? expand_more
Listed applications: Home Appliances, Electronics and Industry.
What should I include in a quote request? expand_more
Include glass type and thickness, temperature and pressure, strengthening and safety and outline and edges, plus quantity and a drawing if the part is custom.
