Schott Glass 8447 Intermediate Sealing Glass

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Schott Glass 8447 Intermediate Sealing Glass
Categories:	Ceramic; Glass
Material Notes:	Intermediate Sealing glass Sealing to the glasses 8449, 8486, 8412, 8250, 8245, and Kovar The heavy metal content of the elements lead, cadmium, mercury, and hexavalent chromium is below 100 ppm Information provided by SCHOTT AG.
Vendors:	SCHOTT with its Business Unit Tubing offers tailor-made products & services worldwide from more than sixty special glass types for international growth markets such as industrial and environmental technology, electronics, display industry, architecture and design as well as pharmaceuticals. Contact us. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Metric	English	Comments

Density	2.26 g/cc @Temperature 25.0 °C	0.0816 lb/in³ @Temperature 77.0 °F

Thermal Properties	Metric	English	Comments
CTE, linear	4.60 µm/m-°C @Temperature 20.0 - 300 °C	2.56 µin/in-°F @Temperature 68.0 - 572 °F	ISO 7991
Transformation Temperature, Tg	475 °C	887 °F	ISO 7884-8
Softening Point	720 °C	1330 °F	Viscosity 10^7.6 dPa s; ISO 7884-3
Working Point	1045 °C	1913 °F	Viscosity 10⁴ dPa s; ISO 7884-2
Annealing Point	505 °C	941 °F	Viscosity 10¹³ dPa s; ISO 7884-4

Optical Properties	Metric	English	Comments
Refractive Index	1.478 @Wavelength 587.6 nm	1.478 @Wavelength 587.6 nm

Descriptive Properties
Hydrolytic Resistance	Class HGB 4		ISO 719
t_k100(°C)	270

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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CSGS927 / 162032

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