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Cork vs. ASTM B685 Alloy

Cork and ASTM B685 alloy belong to fundamentally different material chemistries. Cork is a polymeric material, while ASTM B685 alloy is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 11 material properties with values for both materials. Properties with values for just one material (11, 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 ASTM B685 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 0.020
120
Shear Modulus, GPa 0.010
43
Tensile Strength: Ultimate (UTS), MPa 0.85
660 to 1060

Thermal Properties

Specific Heat Capacity, J/kg-K 2000
300
Thermal Expansion, µm/m-K 200
14

Otherwise Unclassified Properties

Density, g/cm3 0.15
11

Common Calculations

Stiffness to Weight: Axial, points 0.074
6.1
Stiffness to Weight: Bending, points 60
15
Strength to Weight: Axial, points 1.6
17 to 27
Strength to Weight: Bending, points 13
16 to 21
Thermal Shock Resistance, points 16
28 to 46