General Alkaline Earth Borosilicate Glass



Alkaline Earth Borosilicate Glass is both highly chemically and thermally resistant. Typically, it is softer than non alkaline earth borosilicate glass.

Ashby charts

See where falls on the material property chart for Density against Elastic modulus in your materials selection and design process.



Density ρ

2.3 - 2.4 g/cm³ at 20 °C


Elastic modulus E

60 - 70 GPa at 20 °C

Poisson's ratio ν

0.19 - 0.22 [-] at 20 °C


Annealing temperature Tanneal

480 - 570 °C

Coefficient of thermal expansion α

4.3E-6 - 5.4E-6 1/K at 300 °C

Vicat softening temperature Tsoft

710 - 800 °C


Dielectric constant εr

5.1 - 6.3 [-] at 20 °C

at 1MHz

Loss tangent tanδ

1.5E-3 - 0.01 [-] at 20 °C

at 1MHz

This material data has been provided by Matmatch.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.