| |
| Physical Properties | Metric | English | Comments |
|---|
| Density | 3.69 g/cc | 0.133 lb/in³ |
| |
| Chemical Properties | Metric | English | Comments |
|---|
| Acid Class, SR | 52.3 | 52.3 |
| Alkali Class, AR | 1.0 | 1.0 |
| Stain Resistance Class, FR | 2.0 | 2.0 |
| |
| Mechanical Properties | Metric | English | Comments |
|---|
| Knoop Microhardness | 780 | 780 |
| Modulus of Elasticity | 116 GPa | 16800 ksi |
| Poissons Ratio | 0.286 | 0.286 |
| Shear Modulus | 45.0 GPa | 6530 ksi |
| |
| Thermal Properties | Metric | English | Comments |
|---|
CTE, linear  | 5.70 µm/m-°C
@Temperature -30.0 - 70.0 °C | 3.17 µin/in-°F
@Temperature -22.0 - 158 °F |
| | 6.80 µm/m-°C
@Temperature 20.0 - 300 °C | 3.78 µin/in-°F
@Temperature 68.0 - 572 °F |
| Specific Heat Capacity | 0.640 J/g-°C | 0.153 BTU/lb-°F |
| Thermal Conductivity | 0.860 W/m-K | 5.97 BTU-in/hr-ft²-°F |
| Transformation Temperature, Tg | 636 °C | 1180 °F |
| Softening Point | 714 °C | 1320 °F |
| Annealing Point | 631 °C | 1170 °F |
| |
| Optical Properties | Metric | English | Comments |
|---|
| Refractive Index | 1.72003
@Wavelength 587.6 nm | 1.72003
@Wavelength 587.6 nm |
| | 1.72341
@Wavelength 546.1 nm | 1.72341
@Wavelength 546.1 nm |
| Abbe Number | 50.39 | 50.39 |
| | 50.62 | 50.62 |
| Optical Dispersion | 0.014224 | 0.014224 |
| | 0.014357 | 0.014357 |
| Transmission, Visible | 90.1 %
@Thickness 10.0 mm,
Wavelength 380 nm | 90.1 %
@Thickness 0.394 in,
Wavelength 380 nm |
| | 96.3 %
@Thickness 10.0 mm,
Wavelength 405 nm | 96.3 %
@Thickness 0.394 in,
Wavelength 405 nm |
| | 99.1 %
@Thickness 10.0 mm,
Wavelength 460 nm | 99.1 %
@Thickness 0.394 in,
Wavelength 460 nm |
| | 99.7 %
@Thickness 10.0 mm,
Wavelength 580 nm | 99.7 %
@Thickness 0.394 in,
Wavelength 580 nm |
| | 99.9 %
@Thickness 10.0 mm,
Wavelength 700 nm | 99.9 %
@Thickness 0.394 in,
Wavelength 700 nm |
| IR Transmittance | 42.8 %
@Thickness 10.0 mm,
Wavelength 2500 nm | 42.8 %
@Thickness 0.394 in,
Wavelength 2500 nm |
| | 99.1 %
@Thickness 10.0 mm,
Wavelength 1530 nm | 99.1 %
@Thickness 0.394 in,
Wavelength 1530 nm |
| UV Transmittance | 2.6 %
@Thickness 10.0 mm,
Wavelength 334 nm | 2.6 %
@Thickness 0.394 in,
Wavelength 334 nm |
| | 44.2 %
@Thickness 10.0 mm,
Wavelength 350 nm | 44.2 %
@Thickness 0.394 in,
Wavelength 350 nm |
| | 77 %
@Thickness 10.0 mm,
Wavelength 365 nm | 77 %
@Thickness 0.394 in,
Wavelength 365 nm |
| | 83.1 %
@Thickness 10.0 mm,
Wavelength 370 nm | 83.1 %
@Thickness 0.394 in,
Wavelength 370 nm |
| |
| Descriptive Properties |
|---|
| B | 0 |
| Climatic Resistance Test CR | 2 |
| HG | 2 |
| K (10-6mm2/N) | 1.97 |
| Phosphate Resistance PR | 3 |
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