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2024 Aluminum vs. Infrared Transmitting Glass

2024 aluminum and infrared transmitting glass belong to fundamentally different material chemistries. 2024 aluminum is a metal, while infrared transmitting glass is a ceramic material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 9 material properties with values for both materials. Properties with values for just one material (24, in this case) are not shown.

For each property being compared, the top bar is 2024 aluminum and the bottom bar is infrared transmitting glass.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 3.0
4.4 to 4.8
Elastic (Young's, Tensile) Modulus, GPa 71
18 to 63
Poisson's Ratio 0.33
0.28 to 0.3
Specific Heat Capacity, J/kg-K 880
360 to 430
Stiffness to Weight: Axial, points 13
2.3 to 7.3
Stiffness to Weight: Bending, points 46
20 to 28
Thermal Conductivity, W/m-K 120
0.0060 to 0.23
Thermal Diffusivity, mm2/s 46
0.0029 to 0.14
Thermal Expansion, µm/m-K 23
9.0 to 17