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PES vs. R05255 Alloy

PES and R05255 alloy belong to fundamentally different material chemistries. PES is a polymeric material, while R05255 alloy 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 (25, 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 R05255 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.6
190
Elongation at Break, % 65
20
Tensile Strength: Ultimate (UTS), MPa 87
540

Thermal Properties

Specific Heat Capacity, J/kg-K 1100
140
Thermal Conductivity, W/m-K 0.18
59
Thermal Expansion, µm/m-K 53
6.6

Otherwise Unclassified Properties

Density, g/cm3 1.4
17

Common Calculations

Stiffness to Weight: Axial, points 1.1
6.3
Stiffness to Weight: Bending, points 33
11
Strength to Weight: Axial, points 18
9.1
Strength to Weight: Bending, points 32
8.9
Thermal Diffusivity, mm2/s 0.12
25
Thermal Shock Resistance, points 45
31