| |
| Physical Properties | Metric | English | Comments |
|---|
| Density | 4.24 g/cc | 0.153 lb/in³ |
| |
| Chemical Properties | Metric | English | Comments |
|---|
| Acid Class, SR | 51.3 | 51.3 |
| Alkali Class, AR | 1.0 | 1.0 |
| Stain Resistance Class, FR | 1.0 | 1.0 |
| |
| Mechanical Properties | Metric | English | Comments |
|---|
| Knoop Microhardness | 770 | 770 |
| Modulus of Elasticity | 123 GPa | 17800 ksi |
| Poissons Ratio | 0.292 | 0.292 |
| Shear Modulus | 48.0 GPa | 6960 ksi |
| |
| Thermal Properties | Metric | English | Comments |
|---|
CTE, linear  | 5.80 µm/m-°C
@Temperature -30.0 - 70.0 °C | 3.22 µin/in-°F
@Temperature -22.0 - 158 °F |
| | 7.00 µm/m-°C
@Temperature 20.0 - 300 °C | 3.89 µin/in-°F
@Temperature 68.0 - 572 °F |
| Specific Heat Capacity | 0.800 J/g-°C | 0.191 BTU/lb-°F |
| Thermal Conductivity | 0.560 W/m-K | 3.89 BTU-in/hr-ft²-°F |
| Transformation Temperature, Tg | 668 °C | 1230 °F |
| Softening Point | 745 °C | 1370 °F |
| Annealing Point | 659 °C | 1220 °F |
| |
| Optical Properties | Metric | English | Comments |
|---|
| Refractive Index | 1.7725
@Wavelength 587.6 nm | 1.7725
@Wavelength 587.6 nm |
| | 1.77621
@Wavelength 546.1 nm | 1.77621
@Wavelength 546.1 nm |
| Abbe Number | 49.38 | 49.38 |
| | 49.62 | 49.62 |
| Optical Dispersion | 0.015568 | 0.015568 |
| | 0.015719 | 0.015719 |
| Transmission, Visible | 91.9 %
@Thickness 10.0 mm,
Wavelength 380 nm | 91.9 %
@Thickness 0.394 in,
Wavelength 380 nm |
| | 97.1 %
@Thickness 10.0 mm,
Wavelength 405 nm | 97.1 %
@Thickness 0.394 in,
Wavelength 405 nm |
| | 99.2 %
@Thickness 10.0 mm,
Wavelength 460 nm | 99.2 %
@Thickness 0.394 in,
Wavelength 460 nm |
| | 99.8 %
@Thickness 10.0 mm,
Wavelength 580 nm | 99.8 %
@Thickness 0.394 in,
Wavelength 580 nm |
| | 99.8 %
@Thickness 10.0 mm,
Wavelength 700 nm | 99.8 %
@Thickness 0.394 in,
Wavelength 700 nm |
| IR Transmittance | 44.2 %
@Thickness 10.0 mm,
Wavelength 2500 nm | 44.2 %
@Thickness 0.394 in,
Wavelength 2500 nm |
| | 99 %
@Thickness 10.0 mm,
Wavelength 1530 nm | 99 %
@Thickness 0.394 in,
Wavelength 1530 nm |
| UV Transmittance | 1.0 %
@Thickness 10.0 mm,
Wavelength 320 nm | 1.0 %
@Thickness 0.394 in,
Wavelength 320 nm |
| | 25 %
@Thickness 10.0 mm,
Wavelength 334 nm | 25 %
@Thickness 0.394 in,
Wavelength 334 nm |
| | 63.4 %
@Thickness 10.0 mm,
Wavelength 350 nm | 63.4 %
@Thickness 0.394 in,
Wavelength 350 nm |
| | 86.7 %
@Thickness 10.0 mm,
Wavelength 370 nm | 86.7 %
@Thickness 0.394 in,
Wavelength 370 nm |
| |
| Descriptive Properties |
|---|
| B | 0 |
| Climatic Resistance Test CR | 1 |
| HG | 2 |
| K (10-6mm2/N) | 1.44 |
| Phosphate Resistance PR | 1 |
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