Corning 7059

Barium Borosilicate (7059)
Low alkali content of less than 0.3%

Softening Point	844° C
Annealing Point	639° C
Strain Point	593° C
Thermal Expansion (0-300° C)	46.0 x 10-7/° C
Density	2.76 g/cm3
Refractive Index (589.3 nm)	1.5333

An ideal substrate glass that is also used for low-end LCD applications

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