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PES vs. R30016 Cobalt

PES and R30016 cobalt belong to fundamentally different material chemistries. PES is a polymeric material, while R30016 cobalt is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 14 material properties with values for both materials. Properties with values for just one material (35, 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 R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.6
220
Elongation at Break, % 65
8.4
Flexural Strength, MPa 130
2360
Tensile Strength: Ultimate (UTS), MPa 87
1010

Thermal Properties

Specific Heat Capacity, J/kg-K 1100
450
Thermal Conductivity, W/m-K 0.18
15
Thermal Expansion, µm/m-K 53
14

Otherwise Unclassified Properties

Density, g/cm3 1.4
8.5

Common Calculations

Stiffness to Weight: Axial, points 1.1
14
Stiffness to Weight: Bending, points 33
24
Strength to Weight: Axial, points 18
33
Strength to Weight: Bending, points 32
26
Thermal Diffusivity, mm2/s 0.12
3.9
Thermal Shock Resistance, points 45
24