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2024 Aluminum vs. High-silica Glass

2024 aluminum and high-silica glass belong to fundamentally different material chemistries. 2024 aluminum is a metal, while high-silica glass is a ceramic material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 5 material properties with values for both materials. Properties with values for just one material (33, in this case) are not shown.

For each property being compared, the top bar is 2024 aluminum and the bottom bar is high-silica glass.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 3.0
2.4
Elastic (Young's, Tensile) Modulus, GPa 71
78
Stiffness to Weight: Axial, points 13
19
Stiffness to Weight: Bending, points 46
61
Thermal Expansion, µm/m-K 23
0.6 to 0.75