| |
| Physical Properties | Metric | English | Comments |
|---|
| Density | 2.45 g/cc | 0.0885 lb/in³ |
| |
| Chemical Properties | Metric | English | Comments |
|---|
| Acid Class, SR | 4.0 | 4.0 |
| Alkali Class, AR | 2.0 | 2.0 |
| Stain Resistance Class, FR | 1.0 | 1.0 |
| |
| Mechanical Properties | Metric | English | Comments |
|---|
| Knoop Microhardness | 520 | 520 |
| Modulus of Elasticity | 62.0 GPa | 8990 ksi |
| Poissons Ratio | 0.232 | 0.232 |
| Shear Modulus | 25.0 GPa | 3630 ksi |
| |
| Thermal Properties | Metric | English | Comments |
|---|
CTE, linear  | 9.20 µm/m-°C
@Temperature -30.0 - 70.0 °C | 5.11 µin/in-°F
@Temperature -22.0 - 158 °F |
| | 10.0 µm/m-°C
@Temperature 20.0 - 300 °C | 5.56 µin/in-°F
@Temperature 68.0 - 572 °F |
| Specific Heat Capacity | 0.808 J/g-°C | 0.193 BTU/lb-°F |
| Thermal Conductivity | 0.925 W/m-K | 6.42 BTU-in/hr-ft²-°F |
| Transformation Temperature, Tg | 466 °C | 871 °F |
| Softening Point | 672 °C | 1240 °F |
| Annealing Point | 469 °C | 876 °F |
| |
| Optical Properties | Metric | English | Comments |
|---|
| Refractive Index | 1.48749
@Wavelength 587.6 nm | 1.48749
@Wavelength 587.6 nm |
| | 1.48914
@Wavelength 546.1 nm | 1.48914
@Wavelength 546.1 nm |
| Abbe Number | 70.23 | 70.23 |
| | 70.41 | 70.41 |
| Optical Dispersion | 0.006924 | 0.006924 |
| | 0.006965 | 0.006965 |
| Transmission, Visible | 99.6 %
@Thickness 10.0 mm,
Wavelength 380 nm | 99.6 %
@Thickness 0.394 in,
Wavelength 380 nm |
| | 99.7 %
@Thickness 10.0 mm,
Wavelength 460 nm | 99.7 %
@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 |
| | 99.8 %
@Thickness 10.0 mm,
Wavelength 405 nm | 99.8 %
@Thickness 0.394 in,
Wavelength 405 nm |
| IR Transmittance | 67.9 %
@Thickness 10.0 mm,
Wavelength 2500 nm | 67.9 %
@Thickness 0.394 in,
Wavelength 2500 nm |
| | 98.6 %
@Thickness 10.0 mm,
Wavelength 1530 nm | 98.6 %
@Thickness 0.394 in,
Wavelength 1530 nm |
| UV Transmittance | 7.0 %
@Thickness 10.0 mm,
Wavelength 270 nm | 7.0 %
@Thickness 0.394 in,
Wavelength 270 nm |
| | 86.7 %
@Thickness 10.0 mm,
Wavelength 300 nm | 86.7 %
@Thickness 0.394 in,
Wavelength 300 nm |
| | 98.9 %
@Thickness 10.0 mm,
Wavelength 334 nm | 98.9 %
@Thickness 0.394 in,
Wavelength 334 nm |
| | 99.7 %
@Thickness 10.0 mm,
Wavelength 370 nm | 99.7 %
@Thickness 0.394 in,
Wavelength 370 nm |
| |
| Descriptive Properties |
|---|
| B | 1 |
| Climatic Resistance Test CR | 2 |
| HG | 3 |
| K (10-6mm2/N) | 2.91 |
| Phosphate Resistance PR | 2.3 |
Some of the values displayed above may have been converted from their original units and/or rounded in order to
display the information in a consistent format. Users requiring more precise data for scientific or engineering
calculations can click on the property value to see the original value as well as raw conversions to equivalent units.
We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding
error. We also ask that you refer to MatWeb's
terms of use regarding this information.
Click here to view
all the property values for this datasheet as they were originally entered into MatWeb.
