Soda-Lime (Float) Glass

Soda-lime glass is a glass-type material.

It has two common variants, each represented as a separate material.

Material Properties

Density2.4 g/cm3 (150 lb/ft3)

Dielectric Constant (Relative Permittivity)7.3 to 7.4

Dielectric Strength (Breakdown Potential)13 kV/mm (0.51 V/mil)

Elastic (Young's, Tensile) Modulus70 to 71 GPa (10 x 106 psi)

Knoop Hardness570

Light Transmission Range0.35 to 2.5 µm

Poisson's Ratio0.23

Refractive Index1.5

Shear Modulus29 GPa (4.2 x 106 psi)

Specific Heat Capacity720 to 800 J/kg-K

Strength to Weight Ratio17 to 75 kN-m/kg

Tensile Strength: Ultimate (UTS)41 to 180 MPa (5.9 to 26 x 103 psi)

Thermal Conductivity1.0 to 1.1 W/m-K

Thermal Diffusivity0.58

Thermal Expansion8.8 to 9.0 µm/m-K

Further Reading

Dictionary of Glass: Materials and Techniques, Charles Bray, 2002

Glass Construction Manual, Christian Schittich et al., 1999

Glass: Mechanics and Technology, Eric Le Bourhis, 2007