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Schott Glass 8650 Sealing 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 8650 Sealing Glass.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Sealing glass for molybdenum, free from Na and K, of high lead content Implosion diodesInformation provided by SCHOTT AG.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 3.57 g/cc @Temperature 25.0 °C |
0.129 lb/in³ @Temperature 77.0 °F |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Modulus of Elasticity | 62.0 GPa | 8990 ksi | |
| Poissons Ratio | 0.23 | 0.23 |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 5.10 µm/m-°C @Temperature 20.0 - 300 °C |
2.83 µin/in-°F @Temperature 68.0 - 572 °F |
ISO 7991 |
| Thermal Conductivity | 0.500 W/m-K @Temperature 90.0 °C |
3.47 BTU-in/hr-ft²-°F @Temperature 194 °F |
|
| Transformation Temperature, Tg | 475 °C | 887 °F | ISO 7884-8 |
| Softening Point | 625 °C | 1160 °F | Viscosity 10<sup>7.6</sup> dPa s; ISO 7884-3 |
| Working Point | 885 °C | 1630 °F | Viscosity 10<sup>4</sup> dPa s; ISO 7884-2 |
| Annealing Point | 475 °C | 887 °F | Viscosity 10<sup>13</sup> dPa s; ISO 7884-4 |
| Optical Properties | Metric | English | Comments |
|---|---|---|---|
| Refractive Index | 1.618 @Wavelength 587.6 nm |
1.618 @Wavelength 587.6 nm |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Dielectric Constant | 7.6 @Frequency 1.00e+6 Hz, Temperature 25.0 °C |
7.6 @Frequency 1.00e+6 Hz, Temperature 77.0 °F |
|
| Dielectric Loss Index | 0.0033 @Frequency 1.00e+6 Hz, Temperature 25.0 °C |
0.0033 @Frequency 1.00e+6 Hz, Temperature 77.0 °F |
| Chemical Properties | Metric | English | Comments |
|---|---|---|---|
| Acid Class, SR | 4 | 4 | DIN 12116 |
| Alkali Class, AR | 3 | 3 | ISO 695 |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Hydrolytic Resistance | Class HGB 1 | ISO 719 |
| Stress-optical Coefficient K (10-6mm2N-1) | 2.8 | DIN 52314 |
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