High Transmittance Clear Borosilicate Glass Sheet 3.3 Sight Glass with Laser Cut Holes
FEATURES
– 3.3 Coefficient of Thermal Expansion
– High temperature resistance with chemical stability
– Super scratch resistant & waterproof & flame resistant
– Perfect flatness and smoothness
– Timely delivery date assurance
– One to one consulation and professional guidance
– Shape, size, finsh & design can customized as request
– Anti-glare/Anti-reflective/Anti-fingerprint/Anti-microbial are available here
High Borosilicate Glass Material Report
| 密度（Density) | 2.30g/cm² |
| 硬度（ Hardness) | 6.0’ |
| 弹性模量（Elasticity Modulus) | 67KNmm – 2 |
| 抗张强度（Tensile Strength) | 40 – 120Nmm – 2 |
| 泊松比（Poisson Ratio) | 0.18 |
| 热膨胀系数 （20-400°C）（Coefficient of Thermal Expansion) | (3.3)*10`-6 |
| 导热率比热（90°C）(Specific Heat Conductivity) | 1.2W*(M*K`-1) |
| 折射率（Refractive Index) | 1.6375 |
| 比热（Specific Heat) (J/KG) | 830 |
| 熔点（Melting Point) | 1320°C |
| 软化点（Softening Point) | 815°C |
| 连续工作温度/使用寿命（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 | |
| 抗热冲击（Thermal Shock) | ≤350°C |
| 抗冲击强度（Impact Strength) | ≥7J |
| 主要化学成分%含量（Main Chemical Composition % Content) | |
| SiO2 | 80.40% |
| Fe203 | 0.02% |
| Ti02 | 1.00% |
| B203 | 12.50% |
| Na20+K20 | 4.20% |
| FE | 0.02% |
| 耐水性（Water Tolerance) | HGB 1级 （HGB 1) |
What is Borosilicate Glass ?
Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low 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 subjected to less thermal stress and can withstand temperature differentials without fracturing of about 165 °C (297 °F). It is commonly used for the construction of reagent bottles and flasks as well as lighting, electronics and cookware.
Production Process
FACTORY OVERVIEW
CUSTOMER VISITING & FEEDBACK
All MATERIALS USED ARE COMPLIANT WITH ROHS III (EUROPEAN VERSION), ROHS II (CHINA VERSION), REACH (CURRENT VERSION)
OUR FACTORY
OUR PRODUCTION LINE & WAREHOUSE
Lamianting protective film — Pearl cotton packing — Kraft paper packing
3 KIND OF WRAPPING CHOICE
Export plywood case pack — Export paper carton pack
