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PBT vs. UHMW-PE

Both PBT and UHMW-PE are thermoplastics. There are 10 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is PBT and the bottom bar is UHMW-PE.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.3 to 1.5
0.94
Elastic (Young's, Tensile) Modulus, GPa 2.7 to 8.7
0.8
Elongation at Break, % 2.5 to 43
400
Melting Onset (Solidus), °C 230
130
Specific Heat Capacity, J/kg-K 1040 to 1200
1750
Stiffness to Weight: Axial, points 1.1 to 3.2
0.47
Stiffness to Weight: Bending, points 35 to 45
33
Strength to Weight: Axial, points 12 to 25
14
Strength to Weight: Bending, points 25 to 38
32
Tensile Strength: Ultimate (UTS), MPa 58 to 140
49