Schott NEO 1730 Alkaline Earth Aluminosilicate Glass

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Schott NEO 1730 Alkaline Earth Aluminosilicate Glass
Categories:	Ceramic; Glass
Material Notes:	Alkaline earth aluminosilicate glass for high temperature applications in electrical engineering, for sealing to molybdenum, free from alkali Bulb and exhaust tube for halogen lamps for automotive, household, and general lighting The heavy metal content for 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	Original Value	Comments

Density	2.67 g/cc @Temperature 25.0 °C

Chemical Properties	Original Value	Comments
Acid Class, SR	1	DIN 12116
Alkali Class, AR	2	ISO 695

Thermal Properties	Original Value	Comments
CTE, linear	4.50 µm/m-°C @Temperature 20.0 - 300 °C	ISO 7991
Transformation Temperature, Tg	715 °C	ISO 7884-8
Softening Point	935 °C	Viscosity 10^7.6 dPa s; ISO 7884-3
Working Point	1210 °C	Viscosity 10⁴ dPa s; ISO 7884-2
Annealing Point	725 °C	Viscosity 10¹³ dPa s; ISO 7884-4
Strain Point	675 °C	Viscosity 10^14.5 dPa s; ISO 7884-7

Optical Properties	Original Value	Comments
Refractive Index	1.548 @Wavelength 587.6 nm
Transmission, Visible	37 % @Thickness 1.00 mm, Wavelength 585 nm
	65 % @Thickness 1.00 mm, Wavelength 750 nm
	88 % @Thickness 1.00 mm, Wavelength 775 nm
	87 - 90 % @Wavelength 375 - 500 nm, Thickness 1.00 mm
	88 - 90 % @Wavelength 620 - 725 nm, Thickness 1.00 mm
IR Transmittance	65 % @Thickness 1.00 mm, Wavelength 800 nm
UV Transmittance	12 % @Thickness 1.00 mm, Wavelength 300 nm
	58 % @Thickness 1.00 mm, Wavelength 330 nm
	72 % @Thickness 1.00 mm, Wavelength 340 nm

Component Elements Properties	Original Value	Comments
Alkalis	<= 0.030 %	Total Alkali Oxide

Descriptive Properties
Hydrolytic Resistance	Class HGB 1	ISO 719

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 go back to viewing the property data in MatWeb's normal format.

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CSGS911 / 162016

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