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PBT vs. Cork

PBT belongs to the thermoplastics classification, while cork belongs to the wood-based materials. There are 9 material properties with values for both materials. Properties with values for just one material (16, 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 PBT and the bottom bar is cork.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.3 to 1.5
0.15
Elastic (Young's, Tensile) Modulus, GPa 2.7 to 8.7
0.020
Elongation at Break, % 2.5 to 43
15
Specific Heat Capacity, J/kg-K 1040 to 1200
2000
Stiffness to Weight: Axial, points 1.1 to 3.2
0.074
Stiffness to Weight: Bending, points 35 to 45
60
Strength to Weight: Axial, points 12 to 25
1.6
Strength to Weight: Bending, points 25 to 38
13
Tensile Strength: Ultimate (UTS), MPa 58 to 140
0.85