| |
| Physical Properties | Metric | English | Comments |
|---|
| Density | 3.86 g/cc | 0.139 lb/in³ |
| |
| Chemical Properties | Metric | English | Comments |
|---|
| Acid Class, SR | 2.0 | 2.0 |
| Alkali Class, AR | 2.3 | 2.3 |
| Stain Resistance Class, FR | 0.00 | 0.00 |
| |
| Mechanical Properties | Metric | English | Comments |
|---|
| Knoop Microhardness | 410 | 410 |
| Modulus of Elasticity | 55.0 GPa | 7980 ksi |
| Poissons Ratio | 0.227 | 0.227 |
| Shear Modulus | 22.0 GPa | 3190 ksi |
| |
| Thermal Properties | Metric | English | Comments |
|---|
CTE, linear  | 8.40 µm/m-°C
@Temperature -30.0 - 70.0 °C | 4.67 µin/in-°F
@Temperature -22.0 - 158 °F |
| | 9.20 µm/m-°C
@Temperature 20.0 - 300 °C | 5.11 µin/in-°F
@Temperature 68.0 - 572 °F |
| Specific Heat Capacity | 0.498 J/g-°C | 0.119 BTU/lb-°F |
| Thermal Conductivity | 0.735 W/m-K | 5.10 BTU-in/hr-ft²-°F |
| Transformation Temperature, Tg | 441 °C | 826 °F |
| Softening Point | 600 °C | 1110 °F |
| Annealing Point | 428 °C | 802 °F |
| |
| Optical Properties | Metric | English | Comments |
|---|
| Refractive Index | 1.64769
@Wavelength 587.6 nm | 1.64769
@Wavelength 587.6 nm |
| | 1.65222
@Wavelength 546.1 nm | 1.65222
@Wavelength 546.1 nm |
| Abbe Number | 33.6 | 33.6 |
| | 33.85 | 33.85 |
| Optical Dispersion | 0.019135 | 0.019135 |
| | 0.019412 | 0.019412 |
| Transmission, Visible | 94.6 %
@Thickness 10.0 mm,
Wavelength 380 nm | 94.6 %
@Thickness 0.394 in,
Wavelength 380 nm |
| | 98.5 %
@Thickness 10.0 mm,
Wavelength 405 nm | 98.5 %
@Thickness 0.394 in,
Wavelength 405 nm |
| | 99.5 %
@Thickness 10.0 mm,
Wavelength 460 nm | 99.5 %
@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 | 82.6 %
@Thickness 10.0 mm,
Wavelength 2500 nm | 82.6 %
@Thickness 0.394 in,
Wavelength 2500 nm |
| | 99.4 %
@Thickness 10.0 mm,
Wavelength 1530 nm | 99.4 %
@Thickness 0.394 in,
Wavelength 1530 nm |
| UV Transmittance | 11 %
@Thickness 10.0 mm,
Wavelength 334 nm | 11 %
@Thickness 0.394 in,
Wavelength 334 nm |
| | 67.2 %
@Thickness 10.0 mm,
Wavelength 350 nm | 67.2 %
@Thickness 0.394 in,
Wavelength 350 nm |
| | 87.7 %
@Thickness 10.0 mm,
Wavelength 365 nm | 87.7 %
@Thickness 0.394 in,
Wavelength 365 nm |
| | 91 %
@Thickness 10.0 mm,
Wavelength 370 nm | 91 %
@Thickness 0.394 in,
Wavelength 370 nm |
| |
| Descriptive Properties |
|---|
| B | 0 |
| Climatic Resistance Test CR | 1 |
| HG | 2 |
| K (10-6mm2/N) | 2.62 |
| Phosphate Resistance PR | 2 |
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