| |
| Physical Properties | Original Value | Comments |
|---|
| Specific Gravity | 4.17 g/cc |
| |
| Chemical Properties | Original Value | Comments |
|---|
| Acid Class, SR | 51.2 |
| |
| Mechanical Properties | Original Value | Comments |
|---|
| Hardness, Knoop | 730
@Load 0.0999 kg |
| Modulus of Elasticity | 120.9 GPa |
| Modulus of Rigidity | 46.7 GPa |
| Poissons Ratio | 0.295 |
| Abrasion | 62 |
| |
| Thermal Properties | Original Value | Comments |
|---|
| CTE, linear | 5.80 µm/m-°C
@Temperature -30.0 - 70.0 °C |
| | 7.20 µm/m-°C
@Temperature 100 - 300 °C |
| Thermal Conductivity | 0.863 W/m-K
@Temperature 35.0 °C |
| Transformation Temperature, Tg | 692 °C |
| Softening Point | 721 °C |
| Annealing Point | 670 °C |
| Strain Point | 644 °C |
| |
| Optical Properties | Original Value | Comments |
|---|
| Refractive Index | 1.71414
@Wavelength 2325.42 nm |
| | 1.72171
@Wavelength 1970.09 nm |
| | 1.7297
@Wavelength 1529.58 nm |
| | 1.73666
@Wavelength 1128.64 nm |
| | 1.73895
@Wavelength 1013.98 nm |
| | 1.74293
@Wavelength 852.11 nm |
| | 1.74565
@Wavelength 768.19 nm |
| | 1.74814
@Wavelength 706.52 nm |
| | 1.75063
@Wavelength 656.27 nm |
| | 1.75132
@Wavelength 643.85 nm |
| | 1.75197
@Wavelength 632.8 nm |
| | 1.75487
@Wavelength 589.29 nm |
| | 1.755
@Wavelength 587.56 nm |
| | 1.75844
@Wavelength 546.07 nm |
| | 1.76506
@Wavelength 486.13 nm |
| | 1.76588
@Wavelength 479.99 nm |
| | 1.77191
@Wavelength 441.57 nm |
| | 1.77296
@Wavelength 435.835 nm |
| | 1.77954
@Wavelength 404.656 nm |
| | 1.79082
@Wavelength 365.015 nm |
| Abbe Number | 52.08 |
| | 52.32 |
| Optical Dispersion | 0.004373 |
| | 0.004974 |
| | 0.006585 |
| | 0.007118 |
| | 0.007444 |
| | 0.007813 |
| | 0.0079 |
| | 0.011678 |
| | 0.012373 |
| | 0.014431 |
| | 0.014562 |
| | 0.01786 |
| | 0.017958 |
| | 0.024934 |
| Transmission, Visible | 98 %
@Thickness 10.0 mm,
Wavelength 380 nm |
| | 98.6 %
@Thickness 10.0 mm,
Wavelength 390 nm |
| | 99 %
@Thickness 10.0 mm,
Wavelength 400 nm |
| | 99.3 %
@Thickness 10.0 mm,
Wavelength 420 nm |
| | 99.5 %
@Thickness 10.0 mm,
Wavelength 440 nm |
| | 99.7 %
@Thickness 10.0 mm,
Wavelength 460 nm |
| | 99.8 %
@Thickness 10.0 mm,
Wavelength 480 nm |
| | 99.9 %
@Thickness 10.0 mm,
Wavelength 500 nm |
| | 99.9 %
@Thickness 10.0 mm,
Wavelength 550 nm |
| | 99.9 %
@Thickness 10.0 mm,
Wavelength 600 nm |
| | 99.9 %
@Thickness 10.0 mm,
Wavelength 650 nm |
| | 99.9 %
@Thickness 10.0 mm,
Wavelength 700 nm |
| IR Transmittance | 61 %
@Thickness 10.0 mm,
Wavelength 2400 nm |
| | 87 %
@Thickness 10.0 mm,
Wavelength 2200 nm |
| | 95.6 %
@Thickness 10.0 mm,
Wavelength 2000 nm |
| | 98.4 %
@Thickness 10.0 mm,
Wavelength 1800 nm |
| | 99.4 %
@Thickness 10.0 mm,
Wavelength 1600 nm |
| | 99.5 %
@Thickness 10.0 mm,
Wavelength 1400 nm |
| | 99.9 %
@Thickness 10.0 mm,
Wavelength 800 nm |
| | 99.9 %
@Thickness 10.0 mm,
Wavelength 900 nm |
| | 99.9 %
@Thickness 10.0 mm,
Wavelength 1000 nm |
| | 99.9 %
@Thickness 10.0 mm,
Wavelength 1200 nm |
| UV Transmittance | 28 %
@Thickness 10.0 mm,
Wavelength 280 nm |
| | 43 %
@Thickness 10.0 mm,
Wavelength 290 nm |
| | 55 %
@Thickness 10.0 mm,
Wavelength 300 nm |
| | 65 %
@Thickness 10.0 mm,
Wavelength 310 nm |
| | 74 %
@Thickness 10.0 mm,
Wavelength 320 nm |
| | 82 %
@Thickness 10.0 mm,
Wavelength 330 nm |
| | 88 %
@Thickness 10.0 mm,
Wavelength 340 nm |
| | 92.3 %
@Thickness 10.0 mm,
Wavelength 350 nm |
| | 95.1 %
@Thickness 10.0 mm,
Wavelength 360 nm |
| | 96.9 %
@Thickness 10.0 mm,
Wavelength 370 nm |
| |
| Descriptive Properties |
|---|
| Acid Resistance, Powder Method, RA(P) | 4 |
| CCI | 0.00 B |
| | 0.21 G |
| | 0.21 R |
| coloring, λ 80 | 355 |
| Coloring, Internal Transmission λ 0.05 | 272 |
| Coloring, Internal Transmission λ 0.80 | 328 |
| Knoop Hardness Class | 7 |
| Ohara Code d | 755523 |
| Ohara Code e | 758521 |
| Phosphate Resistance, PR | 2 |
| Photoelastic Constant (ß) | 1.39 |
| Water Resistance, RW(P) | 1 |
| Weathering Resistance (Surface Method) W(S)max | 2 |
| Yield Point, At (°C) | 709 |
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