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PS vs. UHMW-PE

Both PS and UHMW-PE are thermoplastics. There are 14 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.9 to 2.9
0.8
Elongation at Break, % 1.8 to 40
400
Tensile Strength: Ultimate (UTS), MPa 32 to 44
49

Thermal Properties

Specific Heat Capacity, J/kg-K 1250 to 1400
1750
Thermal Conductivity, W/m-K 0.14 to 0.22
0.41
Thermal Expansion, µm/m-K 80 to 98
180
Vicat Softening Temperature, °C 100 to 110
75

Otherwise Unclassified Properties

Density, g/cm3 1.0
0.94

Common Calculations

Stiffness to Weight: Axial, points 1.0 to 1.5
0.47
Stiffness to Weight: Bending, points 40 to 45
33
Strength to Weight: Axial, points 8.5 to 12
14
Strength to Weight: Bending, points 22 to 26
32
Thermal Diffusivity, mm2/s 0.11 to 0.15
0.25
Thermal Shock Resistance, points 11 to 15
25