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Schott Glass 8405 UV-transmitting Glass
| Category | Ceramic , Glass |
| Manufacturer | Schott North America |
| Trade Name | |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Schott Glass 8405 UV-transmitting Glass.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Sodium-potassium-barium-silicate glass, highly UV-transmitting Used as envelope for germicidal lamps (low-pressure mercury vapor discharge lamps) and for UV detectors The heavy metal content for the elements lead, mercury, cadmium, and hexavalent chromium is less than 100 ppm.Information provided by SCHOTT AG.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 2.51 g/cc @Temperature 25.0 °C |
0.0907 lb/in³ @Temperature 77.0 °F |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Modulus of Elasticity | 65.0 GPa | 9430 ksi | |
| Poissons Ratio | 0.21 | 0.21 |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 9.70 µm/m-°C @Temperature 20.0 - 300 °C |
5.39 µin/in-°F @Temperature 68.0 - 572 °F |
ISO 7991 |
| Thermal Conductivity | 1.00 W/m-K @Temperature 90.0 °C |
6.94 BTU-in/hr-ft²-°F @Temperature 194 °F |
|
| Transformation Temperature, Tg | 460 °C | 860 °F | ISO 7884-8 |
| Softening Point | 665 °C | 1230 °F | Viscosity 10<sup>7.6</sup> dPa s; ISO 7884-3 |
| Working Point | 1000 °C | 1830 °F | Viscosity 10<sup>4</sup> dPa s; ISO 7884-2 |
| Annealing Point | 470 °C | 878 °F | Viscosity 10<sup>13</sup> dPa s; ISO 7884-4 |
| Optical Properties | Metric | English | Comments |
|---|---|---|---|
| Refractive Index | 1.505 @Wavelength 587.6 nm |
1.505 @Wavelength 587.6 nm |
|
| UV Transmittance | >= 75 % @Thickness 1.00 mm, Wavelength 253.7 nm |
>= 75 % @Thickness 0.0394 in, Wavelength 253.7 nm |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Volume Resistivity | 7.90e+6 ohm-cm @Temperature 350 °C |
7.90e+6 ohm-cm @Temperature 662 °F |
|
| 3.20e+8 ohm-cm @Temperature 250 °C |
3.20e+8 ohm-cm @Temperature 482 °F |
||
| Dielectric Constant | 6.5 @Frequency 1.00e+6 Hz, Temperature 25.0 °C |
6.5 @Frequency 1.00e+6 Hz, Temperature 77.0 °F |
|
| Dielectric Loss Index | 0.0045 @Frequency 1.00e+6 Hz, Temperature 25.0 °C |
0.0045 @Frequency 1.00e+6 Hz, Temperature 77.0 °F |
| Chemical Properties | Metric | English | Comments |
|---|---|---|---|
| Acid Class, SR | 3 | 3 | DIN 12116 |
| Alkali Class, AR | 2 | 2 | ISO 695 |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Hydrolytic Resistance | Class HGB 5 | ISO 719 |
| Stress-optical Coefficient K (10-6mm2N-1) | 2.8 | DIN 52314 |
| tk100(°C) | 280 |
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