Borosilicate Glass
Borosilicate glass is a kind of high-temperature and thermal shock-resistant special glass, which is not easy to crack when exposed to sudden changes in cold and heat, and has strong corrosion resistance and high light transmittance, and its hardness is far higher than that of ordinary glass. Its excellent performance makes it the core material for laboratoryware, heat-resistant parts of high-end home appliances, precision optical instruments and industrial windows, and is widely used in medical equipment, solar technology and other fields. It is more resistant to extreme temperatures than ordinary glass, and has a lower cost than quartz glass, making it the preferred material for industry that takes into account both safety and practicality.


















| Density | 2.23 ± 0.02g/cm³ | Modulus of rigidity | 3.1 × 10¹⁰ Pa |
| Hardness | >7 | Young's modulus | 63 KN/mm³ |
| Tensile strength | 4.8 × 10⁷ Pa (N/m²) | Compressive strength | 1200 kg/cm² |
| Bulk modulus | 93 × 10³ MPa | Poisson's ratio | 0.18 |
| Thermal expansion coefficient | (0-300 °C) (3.3 ± 0.1) × 10⁻⁶ K⁻¹ | Coefficient of thermal conductivity | 1.2 W × (m × K)⁻¹ |
| Specific heat capacity | (20-100 °C) 0.82 kJ × (kg × K)⁻¹ | Light transmittance | 92% |
| The refractive index | Nd: 1.47384 | The wavelength | 435.8nm=1.481, 79.9nm=1.4772, 546.1nm=1.4732 |
| Softening point | 810 ± 10 °C | The resistivity lg ρ | 250 °C 8.0 Ω × cm |
| Dielectric coefficient ε | 4.7 | Dielectric strength | 5 × 10⁷ V/M |
| Dielectric loss factor | tan σ (MC 20 °C) ≤ 38 × 10⁻⁴ | ||
| Resistance to cold and hot shock | 280 °C | Continuous working temperature | ≤ 550 °C |










As a professional special glass manufacturer and supplier in China, we are dealing with High Temperature Resistant Glass, High Pressure Resistant Glass and optical special glass, such as ceramic glass, borosilicate glass, quartz glass and other special glass. We have about 15 years of excellent experience in producing high temperature and high pressure resistant glass. We supply more than 1000 Petrochemical Industries, Nuclear Power, and Metallurgy Industries with high temperature and high pressure resistant glass. We possess special glass precision CNC machining equipment and look forward to establishing more cooperation.
Satisfying Clients' Requirements with Best Abilities: We have our own factory and warehouse with advanced imported equipment, valuable professional talents, and a strict quality control system. With these resources, we promise to satisfy customer requirements to the best of our capabilities.
Business Presence Worldwide: We export to clients in more than 80 countries in North and South America, Europe, Oceania, the Middle East, Africa, and Southeast Asia. We look forward to establishing a long-term business relationship with you in the near future.