|
Physical Properties | Metric | English | Comments |
---|
Specific Gravity | 4.45 g/cc | 4.45 g/cc |
|
Chemical Properties | Metric | English | Comments |
---|
Acid Class, SR | 51.2 | 51.2 |
|
Mechanical Properties | Metric | English | Comments |
---|
Hardness, Knoop | 580 @Load 0.0999 kg | 580 @Load 0.220 lb |
Modulus of Elasticity | 102.6 GPa | 14880 ksi |
Modulus of Rigidity | 39.5 GPa | 5730 ksi |
Poissons Ratio | 0.30 | 0.30 |
Abrasion | 121 | 121 |
|
Thermal Properties | Metric | English | Comments |
---|
CTE, linear | 7.90 µm/m-°C @Temperature -30.0 - 70.0 °C | 4.39 µin/in-°F @Temperature -22.0 - 158 °F |
| 9.30 µm/m-°C @Temperature 100 - 300 °C | 5.17 µin/in-°F @Temperature 212 - 572 °F |
Thermal Conductivity | 0.738 W/m-K @Temperature 35.0 °C | 5.12 BTU-in/hr-ft²-°F @Temperature 95.0 °F |
Transformation Temperature, Tg | 669 °C | 1240 °F |
Softening Point | 732 °C | 1350 °F |
Annealing Point | 654 °C | 1210 °F |
Strain Point | 626 °C | 1160 °F |
|
Optical Properties | Metric | English | Comments |
---|
Refractive Index | 1.76063 @Wavelength 2325.42 nm | 1.76063 @Wavelength 2325.42 nm |
| 1.76695 @Wavelength 1970.09 nm | 1.76695 @Wavelength 1970.09 nm |
| 1.77401 @Wavelength 1529.58 nm | 1.77401 @Wavelength 1529.58 nm |
| 1.78098 @Wavelength 1128.64 nm | 1.78098 @Wavelength 1128.64 nm |
| 1.78355 @Wavelength 1013.98 nm | 1.78355 @Wavelength 1013.98 nm |
| 1.78834 @Wavelength 852.11 nm | 1.78834 @Wavelength 852.11 nm |
| 1.7918 @Wavelength 768.19 nm | 1.7918 @Wavelength 768.19 nm |
| 1.79507 @Wavelength 706.52 nm | 1.79507 @Wavelength 706.52 nm |
| 1.7984 @Wavelength 656.27 nm | 1.7984 @Wavelength 656.27 nm |
| 1.79934 @Wavelength 643.85 nm | 1.79934 @Wavelength 643.85 nm |
| 1.80023 @Wavelength 632.8 nm | 1.80023 @Wavelength 632.8 nm |
| 1.80422 @Wavelength 589.29 nm | 1.80422 @Wavelength 589.29 nm |
| 1.8044 @Wavelength 587.56 nm | 1.8044 @Wavelength 587.56 nm |
| 1.80922 @Wavelength 546.07 nm | 1.80922 @Wavelength 546.07 nm |
| 1.81872 @Wavelength 486.13 nm | 1.81872 @Wavelength 486.13 nm |
| 1.81993 @Wavelength 479.99 nm | 1.81993 @Wavelength 479.99 nm |
| 1.82885 @Wavelength 441.57 nm | 1.82885 @Wavelength 441.57 nm |
| 1.83043 @Wavelength 435.835 nm | 1.83043 @Wavelength 435.835 nm |
| 1.84052 @Wavelength 404.656 nm | 1.84052 @Wavelength 404.656 nm |
| 1.85862 @Wavelength 365.015 nm | 1.85862 @Wavelength 365.015 nm |
Abbe Number | 39.31 | 39.31 |
| 39.58 | 39.58 |
Optical Dispersion | 0.006003 | 0.006003 |
| 0.006597 | 0.006597 |
| 0.009882 | 0.009882 |
| 0.01009 | 0.01009 |
| 0.010704 | 0.010704 |
| 0.010825 | 0.010825 |
| 0.01171 | 0.01171 |
| 0.014851 | 0.014851 |
| 0.015794 | 0.015794 |
| 0.020323 | 0.020323 |
| 0.020586 | 0.020586 |
| 0.02603 | 0.02603 |
| 0.028188 | 0.028188 |
| 0.038692 | 0.038692 |
Transmission, Visible | 82 % @Thickness 10.0 mm, Wavelength 380 nm | 82 % @Thickness 0.394 in, Wavelength 380 nm |
| 89 % @Thickness 10.0 mm, Wavelength 390 nm | 89 % @Thickness 0.394 in, Wavelength 390 nm |
| 92.7 % @Thickness 10.0 mm, Wavelength 400 nm | 92.7 % @Thickness 0.394 in, Wavelength 400 nm |
| 95.9 % @Thickness 10.0 mm, Wavelength 420 nm | 95.9 % @Thickness 0.394 in, Wavelength 420 nm |
| 97.3 % @Thickness 10.0 mm, Wavelength 440 nm | 97.3 % @Thickness 0.394 in, Wavelength 440 nm |
| 98.1 % @Thickness 10.0 mm, Wavelength 460 nm | 98.1 % @Thickness 0.394 in, Wavelength 460 nm |
| 98.7 % @Thickness 10.0 mm, Wavelength 480 nm | 98.7 % @Thickness 0.394 in, Wavelength 480 nm |
| 99.1 % @Thickness 10.0 mm, Wavelength 500 nm | 99.1 % @Thickness 0.394 in, Wavelength 500 nm |
| 99.6 % @Thickness 10.0 mm, Wavelength 550 nm | 99.6 % @Thickness 0.394 in, Wavelength 550 nm |
| 99.6 % @Thickness 10.0 mm, Wavelength 600 nm | 99.6 % @Thickness 0.394 in, Wavelength 600 nm |
| 99.6 % @Thickness 10.0 mm, Wavelength 650 nm | 99.6 % @Thickness 0.394 in, Wavelength 650 nm |
| 99.7 % @Thickness 10.0 mm, Wavelength 700 nm | 99.7 % @Thickness 0.394 in, Wavelength 700 nm |
IR Transmittance | 77.3 % @Thickness 10.0 mm, Wavelength 2400 nm | 77.3 % @Thickness 0.394 in, Wavelength 2400 nm |
| 92.3 % @Thickness 10.0 mm, Wavelength 2200 nm | 92.3 % @Thickness 0.394 in, Wavelength 2200 nm |
| 96.8 % @Thickness 10.0 mm, Wavelength 2000 nm | 96.8 % @Thickness 0.394 in, Wavelength 2000 nm |
| 98.7 % @Thickness 10.0 mm, Wavelength 1800 nm | 98.7 % @Thickness 0.394 in, Wavelength 1800 nm |
| 99.5 % @Thickness 10.0 mm, Wavelength 1600 nm | 99.5 % @Thickness 0.394 in, Wavelength 1600 nm |
| 99.8 % @Thickness 10.0 mm, Wavelength 800 nm | 99.8 % @Thickness 0.394 in, Wavelength 800 nm |
| 99.8 % @Thickness 10.0 mm, Wavelength 900 nm | 99.8 % @Thickness 0.394 in, Wavelength 900 nm |
| 99.8 % @Thickness 10.0 mm, Wavelength 1400 nm | 99.8 % @Thickness 0.394 in, Wavelength 1400 nm |
| 99.9 % @Thickness 10.0 mm, Wavelength 1000 nm | 99.9 % @Thickness 0.394 in, Wavelength 1000 nm |
| 99.9 % @Thickness 10.0 mm, Wavelength 1200 nm | 99.9 % @Thickness 0.394 in, Wavelength 1200 nm |
UV Transmittance | 1.0 % @Thickness 10.0 mm, Wavelength 340 nm | 1.0 % @Thickness 0.394 in, Wavelength 340 nm |
| 14 % @Thickness 10.0 mm, Wavelength 350 nm | 14 % @Thickness 0.394 in, Wavelength 350 nm |
| 44 % @Thickness 10.0 mm, Wavelength 360 nm | 44 % @Thickness 0.394 in, Wavelength 360 nm |
| 69 % @Thickness 10.0 mm, Wavelength 370 nm | 69 % @Thickness 0.394 in, Wavelength 370 nm |
|
Descriptive Properties |
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Acid Resistance, Powder Method, RA(P) | 3 |
CCI | 0.00 B |
| 1.51 G |
| 1.51 R |
coloring, λ 5 | 345 |
coloring, λ 80 | 415 |
Coloring, Internal Transmission λ 0.05 | 343 |
Coloring, Internal Transmission λ 0.80 | 378 |
Knoop Hardness Class | 6 |
Ohara Code d | 804396 |
Ohara Code e | 809393 |
Phosphate Resistance, PR | 1 |
Photoelastic Constant (ß) | 1.39 |
Water Resistance, RW(P) | 1 |
Weathering Resistance (Surface Method) W(S)max | 3 |
Yield Point, At (°C) | 701 |