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Schott Glass 8449 Intermediate 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
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Material Notes:
Intermediate sealing glass Sealing to the glasses 8412, 8447, and 8487Information provided by SCHOTT AG.
Physical Properties Metric English Comments
Density 2.29 g/cc

@Temperature 25.0 °C
 0.0827 lb/in³

@Temperature 77.0 °F
Thermal Properties Metric English Comments
CTE, linear 4.50 µm/m-°C

@Temperature 20.0 - 300 °C
 2.50 µin/in-°F

@Temperature 68.0 - 572 °F
 ISO 7991
Transformation Temperature, Tg 535 °C
995 °F
ISO 7884-8
Softening Point 785 °C
1450 °F
Viscosity 10<sup>7.6</sup> dPa s; ISO 7884-3
Working Point 1150 °C
2100 °F
Viscosity 10<sup>4</sup> dPa s; ISO 7884-2
Annealing Point 550 °C
1020 °F
Viscosity 10<sup>13</sup> dPa s; ISO 7884-4
Optical Properties Metric English Comments
Refractive Index 1.48

@Wavelength 587.6 nm
 1.48

@Wavelength 587.6 nm
Descriptive Properties Value Comments
tk100(°C) 350
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