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7075 Aluminum vs. Lead-alkali-silica Glass

7075 aluminum and lead-alkali-silica glass belong to fundamentally different material chemistries. 7075 aluminum is a metal, while lead-alkali-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 (32, in this case) are not shown.

For each property being compared, the top bar is 7075 aluminum and the bottom bar is lead-alkali-silica glass.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 3.0
3.1
Elastic (Young's, Tensile) Modulus, GPa 70
67
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 46
43
Thermal Expansion, µm/m-K 23
9.0