| |
| Physical Properties | Original Value | Comments |
|---|
| Density | 3.30 g/cc |
| |
| Chemical Properties | Original Value | Comments |
|---|
| Acid Class, SR | 3.4 |
| Alkali Class, AR | 2.2 |
| Stain Resistance Class, FR | 2.0 |
| |
| Mechanical Properties | Original Value | Comments |
|---|
| Hardness, Knoop | 410 |
| Modulus of Elasticity | 56.0 GPa |
| Poissons Ratio | 0.242 |
| Shear Modulus | 22.5 GPa |
| |
| Thermal Properties | Original Value | Comments |
|---|
| CTE, linear | 10.7 µm/m-°C
@Temperature -30.0 - 70.0 °C |
| | 11.4 µm/m-°C
@Temperature 20.0 - 300 °C |
| Specific Heat Capacity | 0.580 J/g-°C |
| Thermal Conductivity | 0.750 W/m-K |
| Transformation Temperature, Tg | 474 °C |
| Softening Point | 606 °C |
| Annealing Point | 462 °C |
| |
| Optical Properties | Original Value | Comments |
|---|
| Refractive Index | 1.564
@Wavelength 2325.4 nm |
| | 1.568
@Wavelength 1970.1 nm |
| | 1.574
@Wavelength 1529.6 nm |
| | 1.58
@Wavelength 1060 nm |
| | 1.581
@Wavelength 1014 nm |
| | 1.584
@Wavelength 852.1 nm |
| | 1.589
@Wavelength 706.5 nm |
| | 1.592
@Wavelength 656.3 nm |
| | 1.592
@Wavelength 613.8 nm |
| | 1.59349
@Wavelength 632.8 nm |
| | 1.596
@Wavelength 5289.3 nm |
| | 1.596
@Wavelength 587.6 nm |
| | 1.60
@Wavelength 546.1 nm |
| | 1.607
@Wavelength 486.1 nm |
| | 1.60799
@Wavelength 480 nm |
| | 1.615
@Wavelength 435.8 nm |
| | 1.623
@Wavelength 404.7 nm |
| Abbe Number | 39.6 |
| | 39.89 |
| Optical Dispersion | 0.014954 |
| | 0.015153 |
| Transmission, Visible | 35 %
@Thickness 25.0 mm,
Wavelength 420 nm |
| | 61.2 %
@Thickness 25.0 mm,
Wavelength 436 nm |
| | 65.7 %
@Thickness 10.0 mm,
Wavelength 420 nm |
| | 82.2 %
@Thickness 10.0 mm,
Wavelength 436 nm |
| | 83.2 %
@Thickness 25.0 mm,
Wavelength 460 nm |
| | 92.9 %
@Thickness 10.0 mm,
Wavelength 460 nm |
| | 93.4 %
@Thickness 25.0 mm,
Wavelength 500 nm |
| | 96.6 %
@Thickness 25.0 mm,
Wavelength 546 nm |
| | 97.3 %
@Thickness 10.0 mm,
Wavelength 500 nm |
| | 97.7 %
@Thickness 25.0 mm,
Wavelength 580 nm |
| | 98.3 %
@Thickness 25.0 mm,
Wavelength 620 nm |
| | 98.6 %
@Thickness 10.0 mm,
Wavelength 546 nm |
| | 98.7 %
@Thickness 25.0 mm,
Wavelength 660 nm |
| | 99.1 %
@Thickness 10.0 mm,
Wavelength 580 nm |
| | 99.3 %
@Thickness 25.0 mm,
Wavelength 700 nm |
| | 99.3 %
@Thickness 10.0 mm,
Wavelength 620 nm |
| | 99.5 %
@Thickness 10.0 mm,
Wavelength 660 nm |
| | 99.7 %
@Thickness 10.0 mm,
Wavelength 700 nm |
| IR Transmittance | 20 %
@Thickness 25.0 mm,
Wavelength 2500 nm |
| | 31.6 %
@Thickness 25.0 mm,
Wavelength 2325 nm |
| | 52.5 %
@Thickness 10.0 mm,
Wavelength 2500 nm |
| | 63.1 %
@Thickness 10.0 mm,
Wavelength 2325 nm |
| | 70.7 %
@Thickness 25.0 mm,
Wavelength 1970 nm |
| | 87 %
@Thickness 10.0 mm,
Wavelength 1970 nm |
| | 97.9 %
@Thickness 25.0 mm,
Wavelength 1530 nm |
| | 99.2 %
@Thickness 10.0 mm,
Wavelength 1530 nm |
| | 99.8 %
@Thickness 25.0 mm,
Wavelength 1060 nm |
| | 99.9 %
@Thickness 10.0 mm,
Wavelength 1060 nm |
| UV Transmittance | 4.0 %
@Thickness 25.0 mm,
Wavelength 400 nm |
| | 9.0 %
@Thickness 10.0 mm,
Wavelength 390 nm |
| | 9.0 %
@Thickness 25.0 mm,
Wavelength 405 nm |
| | 27.6 %
@Thickness 10.0 mm,
Wavelength 400 nm |
| | 38.2 %
@Thickness 10.0 mm,
Wavelength 405 nm |
| |
| Descriptive Properties |
|---|
| Climatic resistance | 3 |
| Grindability | 2 |
| Phosphate resistance | 3 |
| Stress optical coefficient | 2.8 |
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