| |
| Physical Properties | Metric | English | Comments |
|---|
| Density | 2.49 g/cc | 0.0900 lb/in³ |
| |
| Chemical Properties | Metric | English | Comments |
|---|
| Acid Class, SR | 2.0 | 2.0 |
| Alkali Class, AR | 1.2 | 1.2 |
| Stain Resistance Class, FR | 0.00 | 0.00 |
| |
| Mechanical Properties | Metric | English | Comments |
|---|
| Knoop Microhardness | 530 | 530 |
| Modulus of Elasticity | 70.0 GPa | 10200 ksi |
| Poissons Ratio | 0.214 | 0.214 |
| Shear Modulus | 29.0 GPa | 4210 ksi |
| |
| Thermal Properties | Metric | English | Comments |
|---|
CTE, linear  | 4.50 µm/m-°C
@Temperature -30.0 - 70.0 °C | 2.50 µin/in-°F
@Temperature -22.0 - 158 °F |
| | 5.20 µm/m-°C
@Temperature 20.0 - 300 °C | 2.89 µin/in-°F
@Temperature 68.0 - 572 °F |
| Specific Heat Capacity | 0.770 J/g-°C | 0.184 BTU/lb-°F |
| Thermal Conductivity | 1.042 W/m-K | 7.231 BTU-in/hr-ft²-°F |
| Transformation Temperature, Tg | 539 °C | 1000 °F |
| Softening Point | 721 °C | 1330 °F |
| |
| Optical Properties | Metric | English | Comments |
|---|
| Refractive Index | 1.50847
@Wavelength 587.6 nm | 1.50847
@Wavelength 587.6 nm |
| | 1.51045
@Wavelength 546.1 nm | 1.51045
@Wavelength 546.1 nm |
| Abbe Number | 60.98 | 60.98 |
| | 61.19 | 61.19 |
| Optical Dispersion | 0.00831 | 0.00831 |
| | 0.00837 | 0.00837 |
| Transmission, Visible | 98.2 %
@Thickness 10.0 mm,
Wavelength 380 nm | 98.2 %
@Thickness 0.394 in,
Wavelength 380 nm |
| | 99.1 %
@Thickness 10.0 mm,
Wavelength 405 nm | 99.1 %
@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 | 65.7 %
@Thickness 10.0 mm,
Wavelength 2500 nm | 65.7 %
@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 | 3.2 %
@Thickness 10.0 mm,
Wavelength 290 nm | 3.2 %
@Thickness 0.394 in,
Wavelength 290 nm |
| | 22.1 %
@Thickness 10.0 mm,
Wavelength 300 nm | 22.1 %
@Thickness 0.394 in,
Wavelength 300 nm |
| | 85.2 %
@Thickness 10.0 mm,
Wavelength 334 nm | 85.2 %
@Thickness 0.394 in,
Wavelength 334 nm |
| | 97.6 %
@Thickness 10.0 mm,
Wavelength 370 nm | 97.6 %
@Thickness 0.394 in,
Wavelength 370 nm |
| |
| Descriptive Properties |
|---|
| B | 1 |
| Climatic Resistance Test CR | 1 |
| HG | 4 |
| K (10-6mm2/N) | 3.63 |
| Phosphate Resistance PR | 2.2 |
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