Borosilicate Glass Sheets
Description
Technical Parameters
What is Borosilicate glass?
Borosilicate glass is one type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glass are aware of having lowest coefficients coefficients of thermal expansion (≈3 × 10−6 K−1 at 20 °C), making them more resistant to thermal shock than any other common glass.
Such glass is used frequently to make reagent bottles and flasks, as well as lights, electronics, and cookware. It is subjected to less thermal stress and can sustain temperature differentials of roughly 165 °C (300 °F) without breaking.



What’s the difference between Regular Glass and Borosilicate Glass?
In addition to the boron trioxides that are added, borosilicate glass differs from normal glass for a number of significant reasons.
1) Durability - Borosilicate glass is, first and foremost, more durable than regular glass. Most borosilicate glass items can withstand one or two bumps without breaking, chipping, or cracking.
2) Heat Resistance - As we have already discussed, borosilicate glass is highly valued for its capacity to tolerate extremely high temperatures without melting or shattering.
3) Stability - Borosilicate glass is extremely stable, so it won't leech toxins or chemicals. In fact, it is utilized in nuclear reactors to carry radioactive waste without releasing radiation because it is so stable.
Of course, you might not be able to distinguish between borosilicate glass and normal glass just by looking at it.
Technical Parameters
Density |
2.30g/cm² |
Mohs Hardness |
6.0Mohs’ |
Elasticity Modulus |
67KNmm – 2 |
Tensile Strength |
40 – 120Nmm – 2 |
Poisson Ratio |
0.18 |
Coefficient of Thermal Expansion(20-400°C) |
(3.3)*10`-6 |
Specific Heat Conductivity(90°C) |
1.2W*(M*K`-1) |
Refractive Index |
1.6375 |
Specific Heat (J/KG) |
830 |
Melting Point |
1320°C |
Softening Point |
815°C |
Continuous Operating Temperature/Service Life |
150°C |
≥120000h(-60°C-150°C) |
200°C |
≥90000h(-60°C-200°C) |
280°C |
≥620000h(-60°C-280°C) |
370°C |
≥30000h |
520°C |
≥130000h |
|
Thermal Shock |
≤350°C |
Impact Strength |
≥7J |
Main Chemical Composition % Content |
|
SiO2 |
80.40% |
Fe203 |
0.02% |
Ti02 |
1.00% |
B203 |
12.50% |
Na20+K20 |
4.20% |
FE |
0.02% |
Water Tolerance |
HGB 1 |
Edge Treatment
Factory Overview & Customer Visit

Company Profile

Customer Visit
FAQ
Q: Should glass be tempered and what's the difference between Chemical tempered and Physical tempered?
To small size/thickness less than 3.2mm,we recommend chemical tempered.(surface toughen by 6-7H).
To bigger size/thickness above 3.2mm, we recommend physical tempered.
Base on thermal tempered, the fragmentation test standard / partical sizes & quantity could be set base on different thickness.
The glass flatness could be asked after tempering.
Q: What kind of glass will be used?
LightingWe usually use clear / ultra clear float glass for production, depends on customer's need.
Cover glassWe usually use AGC(Dragontail) for production, but also available in gorilla/NEG etc. base on customer's need
Furniture glass We usually use high quality flat/bending glass
Q. Do you accept small order?
Any order quantity is welcome. But some type of products are high cost that not suitable for small order.
Q: Can I get samples and check your Quality?
Yes. Contect our sales with detailed Requirements /Drawings, or just an idea or a sketch. We will deliver the sample to you.
Q: What should I provide to get a quotation?
1. The kind of glass, thickness and size.
2. Drawing of the glass
3. Requirements in details.
4. Order quantity.
5. Others you think is necessary
6. Process balance payment and advise us your opinion on safe delivery.
7. Enjoy your order.
Q: Where is your company? Which port near you? Can I pay a visit?
Welcome. Our factories are located in Guangdong China, near to Shenzhen and Guangzhou port. Please let us know if you want to come, we will advise route guidance in details.
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Delivery & Payment




Packaging:
Step 1: PE film coating(Normally) / paper(For seashipment prevent wet).
Step 2: Kraft paper for fixation.
Step 3: Carton for glass safety protection.
Step 4: Custom make plywood case with hinge for custom(fumigation + convenient inspection) convenience.
Step 5: Packing strap for further fixation.
Port
Shenzhen or Hongkong
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