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Cork vs. 5252 Aluminum

Cork and 5252 aluminum belong to fundamentally different material chemistries. Cork is a polymeric material, while 5252 aluminum is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 14 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is cork and the bottom bar is 5252 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 0.020
68
Elongation at Break, % 15
4.5 to 11
Shear Modulus, GPa 0.010
25
Tensile Strength: Ultimate (UTS), MPa 0.85
230 to 290

Thermal Properties

Specific Heat Capacity, J/kg-K 2000
910
Thermal Conductivity, W/m-K 0.040
140
Thermal Expansion, µm/m-K 200
24

Otherwise Unclassified Properties

Density, g/cm3 0.15
2.7

Common Calculations

Stiffness to Weight: Axial, points 0.074
14
Stiffness to Weight: Bending, points 60
51
Strength to Weight: Axial, points 1.6
23 to 30
Strength to Weight: Bending, points 13
31 to 36
Thermal Diffusivity, mm2/s 0.13
57
Thermal Shock Resistance, points 16
10 to 13