Corning Pyrex® 7740 Borosilicate Glass Sheet

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Corning Pyrex® 7740 Borosilicate Glass Sheet (discontinued **)
Categories:	Ceramic; Glass; Optical; Oxide; Silicon Oxide
Material Notes:	Corning no longer produces this glass in sheet form, or under the Pyrex® brand name. The glass is available in powder form under the grade 7740. Pyrex® sheet provides unique chemical, thermal, mechanical, and optical properties. Tempering increases temperature and pressure capability. Used as polished and machined glass wafers for use in the MST/MEMS (Micro Systems Technology/Micro-Electrical-Mechanical Systems) technologies. Corning has discontinued selling Pyrex® sheet, but still produces this glass in powder form. Information provided by Corning Incorporated.
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Available Properties
Density Hardness, Knoop Modulus of Elasticity Poissons Ratio Shear Modulus, Calculated Volume Resistivity Volume Resistivity Dielectric Constant Dissipation Factor CTE, linear Softening Point, 10^7.6 Poise Working Point, 10⁴ Poise Annealing Point, 10¹³ Poise Strain Point, 10¹⁴ Poise Refractive Index

Property Data

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Manufacturer Notes:
Corning Incorporated

Category Notes
none

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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