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Cork vs. Grade 5 Titanium

Cork and grade 5 titanium belong to fundamentally different material chemistries. Cork is a polymeric material, while grade 5 titanium 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 (20, 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 grade 5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 0.020
110
Elongation at Break, % 15
8.6 to 11
Shear Modulus, GPa 0.010
40
Tensile Strength: Ultimate (UTS), MPa 0.85
1000 to 1190

Thermal Properties

Specific Heat Capacity, J/kg-K 2000
560
Thermal Conductivity, W/m-K 0.040
6.8
Thermal Expansion, µm/m-K 200
8.9

Otherwise Unclassified Properties

Density, g/cm3 0.15
4.4

Common Calculations

Stiffness to Weight: Axial, points 0.074
13
Stiffness to Weight: Bending, points 60
35
Strength to Weight: Axial, points 1.6
62 to 75
Strength to Weight: Bending, points 13
50 to 56
Thermal Diffusivity, mm2/s 0.13
2.7
Thermal Shock Resistance, points 16
76 to 91