|
Physical Properties | Original Value | Comments |
---|
Density | 3.00 g/cc |
|
Chemical Properties | Original Value | Comments |
---|
Acid Class, SR | 3.4 |
Alkali Class, AR | 1.2 |
Stain Resistance Class, FR | 1.0 |
|
Mechanical Properties | Original Value | Comments |
---|
Hardness, Knoop | 520 |
Modulus of Elasticity | 78.0 GPa |
Poissons Ratio | 0.241 |
Shear Modulus | 31.4 GPa |
|
Thermal Properties | Original Value | Comments |
---|
CTE, linear | 7.30 µm/m-°C @Temperature -30.0 - 70.0 °C |
| 8.20 µm/m-°C @Temperature 20.0 - 300 °C |
Specific Heat Capacity | 0.760 J/g-°C |
Thermal Conductivity | 0.840 W/m-K |
Transformation Temperature, Tg | 536 °C |
Softening Point | 664 °C |
Annealing Point | 541 °C |
|
Optical Properties | Original Value | Comments |
---|
Refractive Index | 1.575 @Wavelength 2323.4 nm |
| 1.582 @Wavelength 1970.1 nm |
| 1.589 @Wavelength 1529.6 nm |
| 1.597 @Wavelength 1060 nm |
| 1.598 @Wavelength 1014 nm |
| 1.601 @Wavelength 852.1 nm |
| 1.606 @Wavelength 706.5 nm |
| 1.609 @Wavelength 643.8 nm |
| 1.609 @Wavelength 656.3 nm |
| 1.61 @Wavelength 632.8 nm |
| 1.613 @Wavelength 587.6 nm |
| 1.613 @Wavelength 589.3 nm |
| 1.616 @Wavelength 546.1 nm |
| 1.623 @Wavelength 480 nm |
| 1.623 @Wavelength 486.1 nm |
| 1.63 @Wavelength 435.8 nm |
| 1.637 @Wavelength 404.7 nm |
| 1.648 @Wavelength 365 nm |
Abbe Number | 44.27 |
| 44.49 |
Optical Dispersion | 0.013785 |
| 0.013929 |
Transmission, Visible | 97.1 % @Thickness 25.0 mm, Wavelength 420 nm |
| 97.5 % @Thickness 25.0 mm, Wavelength 436 nm |
| 98 % @Thickness 25.0 mm, Wavelength 460 nm |
| 98.8 % @Thickness 10.0 mm, Wavelength 420 nm |
| 98.8 % @Thickness 25.0 mm, Wavelength 500 nm |
| 99 % @Thickness 10.0 mm, Wavelength 436 nm |
| 99.2 % @Thickness 10.0 mm, Wavelength 460 nm |
| 99.2 % @Thickness 25.0 mm, Wavelength 620 nm |
| 99.3 % @Thickness 25.0 mm, Wavelength 660 nm |
| 99.3 % @Thickness 25.0 mm, Wavelength 580 nm |
| 99.3 % @Thickness 25.0 mm, Wavelength 546 nm |
| 99.4 % @Thickness 25.0 mm, Wavelength 700 nm |
| 99.5 % @Thickness 10.0 mm, Wavelength 500 nm |
| 99.7 % @Thickness 10.0 mm, Wavelength 580 nm |
| 99.7 % @Thickness 10.0 mm, Wavelength 546 nm |
| 99.7 % @Thickness 10.0 mm, Wavelength 660 nm |
| 99.7 % @Thickness 10.0 mm, Wavelength 620 nm |
| 99.8 % @Thickness 10.0 mm, Wavelength 700 nm |
IR Transmittance | 18.6 % @Thickness 25.0 mm, Wavelength 2500 nm |
| 48.6 % @Thickness 25.0 mm, Wavelength 2325 nm |
| 51 % @Thickness 10.0 mm, Wavelength 2500 nm |
| 74.9 % @Thickness 10.0 mm, Wavelength 2325 nm |
| 88.1 % @Thickness 25.0 mm, Wavelength 1970 nm |
| 95.1 % @Thickness 10.0 mm, Wavelength 1970 nm |
| 96.1 % @Thickness 25.0 mm, Wavelength 1530 nm |
| 98.4 % @Thickness 10.0 mm, Wavelength 1530 nm |
| 99.9 % @Thickness 10.0 mm, Wavelength 1060 nm |
| 99.9 % @Thickness 25.0 mm, Wavelength 1060 nm |
UV Transmittance | 0.20 % @Thickness 25.0 mm, Wavelength 320 nm |
| 6.0 % @Thickness 10.0 mm, Wavelength 320 nm |
| 22.3 % @Thickness 25.0 mm, Wavelength 334 nm |
| 54.9 % @Thickness 10.0 mm, Wavelength 334 nm |
| 70 % @Thickness 25.0 mm, Wavelength 350 nm |
| 86.7 % @Thickness 10.0 mm, Wavelength 350 nm |
| 87.4 % @Thickness 25.0 mm, Wavelength 365 nm |
| 90.1 % @Thickness 25.0 mm, Wavelength 370 nm |
| 93.4 % @Thickness 25.0 mm, Wavelength 380 nm |
| 94.8 % @Thickness 10.0 mm, Wavelength 365 nm |
| 95.1 % @Thickness 25.0 mm, Wavelength 390 nm |
| 95.9 % @Thickness 10.0 mm, Wavelength 370 nm |
| 96.2 % @Thickness 25.0 mm, Wavelength 400 nm |
| 96.6 % @Thickness 25.0 mm, Wavelength 405 nm |
| 97.3 % @Thickness 10.0 mm, Wavelength 380 nm |
| 98 % @Thickness 10.0 mm, Wavelength 390 nm |
| 98.5 % @Thickness 10.0 mm, Wavelength 400 nm |
| 98.6 % @Thickness 10.0 mm, Wavelength 405 nm |
|
Descriptive Properties |
---|
Acid resistance class | 6 |
Climatic resistance | 1 |
Grindability | 130 |
| 3 |
Phosphate resistance | 1 |
Stress optical coefficient | 3.9 |
Water resistance class | 4 |
Yield point/sag temperature | 597°C |