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Cork vs. 6063A Aluminum

Cork and 6063A aluminum belong to fundamentally different material chemistries. Cork is a polymeric material, while 6063A 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 (18, 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 6063A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 0.020
68
Elongation at Break, % 15
6.7 to 18
Shear Modulus, GPa 0.010
26
Tensile Strength: Ultimate (UTS), MPa 0.85
130 to 260

Thermal Properties

Specific Heat Capacity, J/kg-K 2000
900
Thermal Conductivity, W/m-K 0.040
200
Thermal Expansion, µm/m-K 200
23

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
50
Strength to Weight: Axial, points 1.6
13 to 26
Strength to Weight: Bending, points 13
21 to 33
Thermal Diffusivity, mm2/s 0.13
83
Thermal Shock Resistance, points 16
5.6 to 11