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LDPE vs. UHMW-PE

Both LDPE and UHMW-PE are thermoplastics. There are 15 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 0.3
0.8
Tensile Strength: Ultimate (UTS), MPa 7.0
49

Thermal Properties

Melting Onset (Solidus), °C 110
130
Specific Heat Capacity, J/kg-K 2300
1750
Thermal Conductivity, W/m-K 0.36
0.41
Thermal Expansion, µm/m-K 220
180
Vicat Softening Temperature, °C 50
75

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz 2.3
2.2

Otherwise Unclassified Properties

Density, g/cm3 0.92
0.94

Common Calculations

Stiffness to Weight: Axial, points 0.18
0.47
Stiffness to Weight: Bending, points 24
33
Strength to Weight: Axial, points 2.1
14
Strength to Weight: Bending, points 8.8
32
Thermal Diffusivity, mm2/s 0.17
0.25
Thermal Shock Resistance, points 7.6
25