|
Physical Properties | Metric | English | Comments |
---|
Specific Gravity | 4.83 g/cc | 4.83 g/cc |
|
Chemical Properties | Metric | English | Comments |
---|
Acid Class, SR | 4.0 | 4.0 |
|
Mechanical Properties | Metric | English | Comments |
---|
Hardness, Knoop | 680 @Load 0.0999 kg | 680 @Load 0.220 lb |
Modulus of Elasticity | 124.7 GPa | 18090 ksi |
Modulus of Rigidity | 47.8 GPa | 6930 ksi |
Poissons Ratio | 0.304 | 0.304 |
Abrasion | 60 | 60 |
|
Thermal Properties | Metric | English | Comments |
---|
CTE, linear | 7.00 µm/m-°C @Temperature -30.0 - 70.0 °C | 3.89 µin/in-°F @Temperature -22.0 - 158 °F |
| 8.60 µm/m-°C @Temperature 100 - 300 °C | 4.78 µin/in-°F @Temperature 212 - 572 °F |
Thermal Conductivity | 0.892 W/m-K @Temperature 35.0 °C | 6.19 BTU-in/hr-ft²-°F @Temperature 95.0 °F |
Transformation Temperature, Tg | 677 °C | 1250 °F |
Softening Point | 761 °C | 1400 °F |
Annealing Point | 672 °C | 1240 °F |
Strain Point | 645 °C | 1190 °F |
|
Optical Properties | Metric | English | Comments |
---|
Refractive Index | 1.85401 @Wavelength 2325.42 nm | 1.85401 @Wavelength 2325.42 nm |
| 1.86068 @Wavelength 1970.09 nm | 1.86068 @Wavelength 1970.09 nm |
| 1.86834 @Wavelength 1529.58 nm | 1.86834 @Wavelength 1529.58 nm |
| 1.8763 @Wavelength 1128.64 nm | 1.8763 @Wavelength 1128.64 nm |
| 1.87935 @Wavelength 1013.98 nm | 1.87935 @Wavelength 1013.98 nm |
| 1.88517 @Wavelength 852.11 nm | 1.88517 @Wavelength 852.11 nm |
| 1.88944 @Wavelength 768.19 nm | 1.88944 @Wavelength 768.19 nm |
| 1.8935 @Wavelength 706.52 nm | 1.8935 @Wavelength 706.52 nm |
| 1.89768 @Wavelength 656.27 nm | 1.89768 @Wavelength 656.27 nm |
| 1.89886 @Wavelength 643.85 nm | 1.89886 @Wavelength 643.85 nm |
| 1.89998 @Wavelength 632.8 nm | 1.89998 @Wavelength 632.8 nm |
| 1.90502 @Wavelength 589.29 nm | 1.90502 @Wavelength 589.29 nm |
| 1.90525 @Wavelength 587.56 nm | 1.90525 @Wavelength 587.56 nm |
| 1.91137 @Wavelength 546.07 nm | 1.91137 @Wavelength 546.07 nm |
| 1.92351 @Wavelength 486.13 nm | 1.92351 @Wavelength 486.13 nm |
| 1.92506 @Wavelength 479.99 nm | 1.92506 @Wavelength 479.99 nm |
| 1.93658 @Wavelength 441.57 nm | 1.93658 @Wavelength 441.57 nm |
| 1.93862 @Wavelength 435.835 nm | 1.93862 @Wavelength 435.835 nm |
| 1.95176 @Wavelength 404.656 nm | 1.95176 @Wavelength 404.656 nm |
Abbe Number | 34.79 | 34.79 |
| 35.04 | 35.04 |
Optical Dispersion | 0.007573 | 0.007573 |
| 0.00824 | 0.00824 |
| 0.012509 | 0.012509 |
| 0.013137 | 0.013137 |
| 0.013691 | 0.013691 |
| 0.013695 | 0.013695 |
| 0.015109 | 0.015109 |
| 0.01833 | 0.01833 |
| 0.019516 | 0.019516 |
| 0.025838 | 0.025838 |
| 0.0262 | 0.0262 |
| 0.033374 | 0.033374 |
Transmission, Visible | 65 % @Thickness 10.0 mm, Wavelength 380 nm | 65 % @Thickness 0.394 in, Wavelength 380 nm |
| 75 % @Thickness 10.0 mm, Wavelength 390 nm | 75 % @Thickness 0.394 in, Wavelength 390 nm |
| 82 % @Thickness 10.0 mm, Wavelength 400 nm | 82 % @Thickness 0.394 in, Wavelength 400 nm |
| 90.1 % @Thickness 10.0 mm, Wavelength 420 nm | 90.1 % @Thickness 0.394 in, Wavelength 420 nm |
| 93.8 % @Thickness 10.0 mm, Wavelength 440 nm | 93.8 % @Thickness 0.394 in, Wavelength 440 nm |
| 95.9 % @Thickness 10.0 mm, Wavelength 460 nm | 95.9 % @Thickness 0.394 in, Wavelength 460 nm |
| 97.4 % @Thickness 10.0 mm, Wavelength 480 nm | 97.4 % @Thickness 0.394 in, Wavelength 480 nm |
| 98.4 % @Thickness 10.0 mm, Wavelength 500 nm | 98.4 % @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 |
| 99.8 % @Thickness 10.0 mm, Wavelength 600 nm | 99.8 % @Thickness 0.394 in, Wavelength 600 nm |
| 99.9 % @Thickness 10.0 mm, Wavelength 650 nm | 99.9 % @Thickness 0.394 in, Wavelength 650 nm |
| 99.9 % @Thickness 10.0 mm, Wavelength 700 nm | 99.9 % @Thickness 0.394 in, Wavelength 700 nm |
IR Transmittance | 84 % @Thickness 10.0 mm, Wavelength 2400 nm | 84 % @Thickness 0.394 in, Wavelength 2400 nm |
| 95.2 % @Thickness 10.0 mm, Wavelength 2200 nm | 95.2 % @Thickness 0.394 in, Wavelength 2200 nm |
| 97.9 % @Thickness 10.0 mm, Wavelength 2000 nm | 97.9 % @Thickness 0.394 in, Wavelength 2000 nm |
| 99.3 % @Thickness 10.0 mm, Wavelength 1800 nm | 99.3 % @Thickness 0.394 in, Wavelength 1800 nm |
| 99.8 % @Thickness 10.0 mm, Wavelength 1600 nm | 99.8 % @Thickness 0.394 in, Wavelength 1600 nm |
| 99.9 % @Thickness 10.0 mm, Wavelength 800 nm | 99.9 % @Thickness 0.394 in, Wavelength 800 nm |
| 99.9 % @Thickness 10.0 mm, Wavelength 900 nm | 99.9 % @Thickness 0.394 in, Wavelength 900 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 |
| 99.9 % @Thickness 10.0 mm, Wavelength 1400 nm | 99.9 % @Thickness 0.394 in, Wavelength 1400 nm |
UV Transmittance | 22 % @Thickness 10.0 mm, Wavelength 360 nm | 22 % @Thickness 0.394 in, Wavelength 360 nm |
| 48 % @Thickness 10.0 mm, Wavelength 370 nm | 48 % @Thickness 0.394 in, Wavelength 370 nm |
|
Descriptive Properties |
---|
Acid Resistance, Powder Method, RA(P) | 1 |
CCI | 0.00 B |
| 3.75 G |
| 3.75 R |
coloring, λ 5 | 355 |
coloring, λ 70 | 410 |
Coloring, Internal Transmission λ 0.05 | 353 |
Coloring, Internal Transmission λ 0.80 | 397 |
Knoop Hardness Class | 7 |
Ohara Code d | 905350 |
Ohara Code e | 911348 |
Phosphate Resistance, PR | 1 |
Photoelastic Constant (ß) | 1.1 |
Water Resistance, RW(P) | 1 |
Weathering Resistance (Surface Method) W(S)max | 1 |
Yield Point, At (°C) | 716 |