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PES vs. Class 3 Tungsten

PES and class 3 tungsten belong to fundamentally different material chemistries. PES is a polymeric material, while class 3 tungsten is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 13 material properties with values for both materials. Properties with values for just one material (30, 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 PES and the bottom bar is class 3 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.6
270
Elongation at Break, % 65
3.4
Tensile Strength: Ultimate (UTS), MPa 87
830

Thermal Properties

Specific Heat Capacity, J/kg-K 1100
120
Thermal Conductivity, W/m-K 0.18
30
Thermal Expansion, µm/m-K 53
4.5

Otherwise Unclassified Properties

Density, g/cm3 1.4
15

Common Calculations

Stiffness to Weight: Axial, points 1.1
9.6
Stiffness to Weight: Bending, points 33
14
Strength to Weight: Axial, points 18
15
Strength to Weight: Bending, points 32
13
Thermal Diffusivity, mm2/s 0.12
15
Thermal Shock Resistance, points 45
49