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PES vs. Tungsten Carbide

PES and tungsten carbide belong to fundamentally different material chemistries. PES is a polymeric material, while tungsten carbide is ceramic. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 15 material properties with values for both materials. Properties with values for just one material (20, 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 tungsten carbide.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.6
630
Flexural Strength, MPa 130
1830
Tensile Strength: Ultimate (UTS), MPa 87
350

Thermal Properties

Maximum Temperature: Mechanical, °C 200
1000
Specific Heat Capacity, J/kg-K 1100
280
Thermal Conductivity, W/m-K 0.18
85
Thermal Expansion, µm/m-K 53
5.4

Electrical Properties

Electrical Resistivity Order of Magnitude, 10x Ω-m 15
0.75

Otherwise Unclassified Properties

Density, g/cm3 1.4
15

Common Calculations

Stiffness to Weight: Axial, points 1.1
24
Stiffness to Weight: Bending, points 33
20
Strength to Weight: Axial, points 18
6.6
Strength to Weight: Bending, points 32
7.5
Thermal Diffusivity, mm2/s 0.12
21
Thermal Shock Resistance, points 45
7.2