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PES vs. S41050 Stainless Steel

PES and S41050 stainless steel belong to fundamentally different material chemistries. PES is a polymeric material, while S41050 stainless steel 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 (37, 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 S41050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.6
190
Elongation at Break, % 65
25
Tensile Strength: Ultimate (UTS), MPa 87
470

Thermal Properties

Maximum Temperature: Mechanical, °C 200
720
Specific Heat Capacity, J/kg-K 1100
480
Thermal Conductivity, W/m-K 0.18
27
Thermal Expansion, µm/m-K 53
10

Otherwise Unclassified Properties

Density, g/cm3 1.4
7.8

Common Calculations

Stiffness to Weight: Axial, points 1.1
14
Stiffness to Weight: Bending, points 33
25
Strength to Weight: Axial, points 18
17
Strength to Weight: Bending, points 32
17
Thermal Diffusivity, mm2/s 0.12
7.2
Thermal Shock Resistance, points 45
17