We can supply borosilicate stepped sight glass in round, rectangular, oblong/oval shape, with thickness range 2-85mm; size 2-800mm.
Our borosilicate sight glass with stepped edge, engineered for exceptional thermal resistance (450℃), chemical durability, and optical clarity. Perfect for high-pressure and high-temperature environments, our sight glass ensures reliable performance and long-lasting visibility.
| Material | Borosilicate Glass |
|---|---|
| Standard | DIN7080 |
| Size | 10-800mm |
| Thickness | 2-85mm |
| Edge | Grind or Polish |
Diameter or Length/Width: 10-800mm.
Thickness: 2-85mm
Soda-lime glass: widely available, cheap, working temperature up to 150 °C, DIN8902.
Borosilicate glass: particularly suitable for use in aggressive environments (acids, alkalis, water vapor), working temperature up to 350 °C, DIN7080.
Aluminosilicate glass: working temperature up to 660 °C.
Glass Ceramic: working temperature up to 750 °C.
Quartz glass: with a broad spectrum light transmittance (from ultraviolet to infrared), working temperature up to 1100 °C.
| Chemical Performance | |||||
| 1 | SiO2 | B2O3 | Na2O | Al2O3 | Fe2O3 |
| 80.3% | 13.04% | 4.17% | 2.44% | 0.027% | |
| 2 | Water resistance | ISO0719 I | |||
| 3 | Acid resistance | ISO0195 I | |||
| 4 | Alkali resistance | ISO0695 II | |||
| Mechanical Performance | |||||
| 5 | Density ρ | 2.2250g/cm3 @24℃ | |||
| 6 | Bending Strength | 150N/mm2 | |||
| 7 | Surface compressive stress | 90N/mm2 | |||
| 8 | Young’s modulus | 64 GPa | |||
| 9 | Poisson’s ratio | 0.2 | |||
| 10 | Hardness | 5.5 Mohs, (470 Knopp, 580 Vickers) | |||
| 11 | Elastic Modulus | 67KNmm-2 | |||
| Thermodynamic Performance | |||||
| 12 | Thermal Expansion Coefficient (0-300℃）(20-300) | ≤3.3*10-6K-1 | |||
| 13 | Softening Point | 820±10℃ | |||
| 14 | Strain Point | 520±10℃ | |||
| 15 | Annealing Point | 560±10℃ | |||
| 16 | Caloricity (20-100℃) | 0.83KJ* (kgxK)-1 | |||
| 17 | Thermal Coefficient | 1.2WxmxK-1 | |||
| 18 | Thermal Shock Resistance | 180K | |||
| 19 | Max Working Temperature | -70 up to 500℃ Short time (＜10h） | |||
| 20 | Max Working Temperature | -70 up to 280℃ Long time (＞10h） | |||
| Electric Property | |||||
| 21 | Electric Volume Resistivity | 8.6×1013Ωxcm (at 25℃） 1.4×106Ωxcm (at 300℃） 1.4×10 6Ωxcm (at 300℃） | |||
| 22 | Dielectric Dissipation Fraction | 38×10-4 (at 1MHz, 20℃） | |||
| 23 | Dielectric Constant εr | 4.6 (at 1MHz, 20℃） | |||
| Optical Property | |||||
| 24 | Refractive Index | 1.4714 @24℃ | |||
Discover the Ultimate in Durability and Clarity with Our Borosilicate Stepped Sight Glass!
Elevate your industrial applications with our premium borosilicate stepped sight glass, engineered for exceptional thermal resistance, chemical durability, and optical clarity. Perfect for high-pressure and high-temperature environments, our sight glass ensures reliable performance and long-lasting visibility. Whether for pharmaceutical, chemical, or food processing industries, this product guarantees precision and safety. Crafted with high-quality materials, it withstands harsh conditions while maintaining transparency. Enhance your operations with a solution trusted by professionals worldwide. Visit our website to learn more and request a quote today! Upgrade to the best – choose our borosilicate stepped sight glass for unmatched quality and performance.
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