| |
| Physical Properties | Metric | English | Comments |
|---|
| Density | 3.86 g/cc | 0.139 lb/in³ |
| |
| Chemical Properties | Metric | English | Comments |
|---|
| Acid Class, SR | 52.3 | 52.3 |
| Alkali Class, AR | 3.3 | 3.3 |
| Stain Resistance Class, FR | 0.00 | 0.00 |
| |
| Mechanical Properties | Metric | English | Comments |
|---|
| Knoop Microhardness | 415 | 415 |
| Modulus of Elasticity | 74.0 GPa | 10700 ksi |
| Poissons Ratio | 0.295 | 0.295 |
| Shear Modulus | 29.0 GPa | 4210 ksi |
| |
| Thermal Properties | Metric | English | Comments |
|---|
CTE, linear  | 12.4 µm/m-°C
@Temperature -30.0 - 70.0 °C | 6.89 µin/in-°F
@Temperature -22.0 - 158 °F |
| | 14.1 µm/m-°C
@Temperature 20.0 - 300 °C | 7.83 µin/in-°F
@Temperature 68.0 - 572 °F |
| Specific Heat Capacity | 0.620 J/g-°C | 0.148 BTU/lb-°F |
| Thermal Conductivity | 0.650 W/m-K | 4.51 BTU-in/hr-ft²-°F |
| Transformation Temperature, Tg | 487 °C | 909 °F |
| Softening Point | 568 °C | 1050 °F |
| Annealing Point | 488 °C | 910 °F |
| |
| Optical Properties | Metric | English | Comments |
|---|
| Refractive Index | 1.52855
@Wavelength 587.6 nm | 1.52855
@Wavelength 587.6 nm |
| | 1.53019
@Wavelength 546.1 nm | 1.53019
@Wavelength 546.1 nm |
| Abbe Number | 76.58 | 76.58 |
| | 76.98 | 76.98 |
| Optical Dispersion | 0.006867 | 0.006867 |
| | 0.006923 | 0.006923 |
| Transmission, Visible | 98.9 %
@Thickness 10.0 mm,
Wavelength 380 nm | 98.9 %
@Thickness 0.394 in,
Wavelength 380 nm |
| | 99.4 %
@Thickness 10.0 mm,
Wavelength 405 nm | 99.4 %
@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 |
| | 99.7 %
@Thickness 10.0 mm,
Wavelength 700 nm | 99.7 %
@Thickness 0.394 in,
Wavelength 700 nm |
| | 99.8 %
@Thickness 10.0 mm,
Wavelength 580 nm | 99.8 %
@Thickness 0.394 in,
Wavelength 580 nm |
| IR Transmittance | 91.9 %
@Thickness 10.0 mm,
Wavelength 2500 nm | 91.9 %
@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 | 0.10 %
@Thickness 10.0 mm,
Wavelength 270 nm | 0.10 %
@Thickness 0.394 in,
Wavelength 270 nm |
| | 20.9 %
@Thickness 10.0 mm,
Wavelength 300 nm | 20.9 %
@Thickness 0.394 in,
Wavelength 300 nm |
| | 81.5 %
@Thickness 10.0 mm,
Wavelength 334 nm | 81.5 %
@Thickness 0.394 in,
Wavelength 334 nm |
| | 98.2 %
@Thickness 10.0 mm,
Wavelength 370 nm | 98.2 %
@Thickness 0.394 in,
Wavelength 370 nm |
| |
| Descriptive Properties |
|---|
| B | 1 |
| Climatic Resistance Test CR | 1 |
| HG | 6 |
| K (10-6mm2/N) | 0.54 |
| Phosphate Resistance PR | 4.3 |
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