Borosilicate Glass
Borosilicate is globally recognized as high-quality multifunctional float glass. Heat and chemical resistance, high transparency and surface quality support new high-tech uses as well as traditional applications. Increasing uses include electrophoresis, microscale fluidics, photovoltaics, fireplaces, microwave ovens, chemical piping, and high-temperature, high-pressure or acid/alkali-resistant sight glasses.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Silicon Content | >80 % |
| Strain Temperature | 520 °C |
| Annealing Temperature | 560 °C |
| Softening Temperature | 820 °C |
| Refractive Index | 1.47 |
| Transmittance | >90 % |
| Elastic Modulus | 67 KNmm-2 |
| Tensile Strength | 40–120 Nmm-2 |
| Processing Temperature [104dpas (Literal Source Condition)] | 1220 °C |
| Coefficient of Thermal Expansion [20-300°C; Source Value 3.3×10-6/K-1 Retained Literally] | 3.3×10-6 |
| Poisson’s Ratio µ | 0.2 |
| Density [20°C] | 2.23 g/cm3 |
| Specific Heat | 0.9 Jg-1K-1 |
| Thermal conductivity | 1.2 Wm-1K-1 |
| Water Resistance [ISO719] | Grade 1 |
| Acid Resistance [ISO195] | Grade 1 |
| Alkali Resistance [ISO695] | Grade 2 |
| Thermal Shock Resistance by Glass Rod Method [Glass Rod Φ6×30mm] | 300 °C |
Applications
Datasheet
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