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PES vs. EN 1.7225 Steel

PES and EN 1.7225 steel belong to fundamentally different material chemistries. PES is a polymeric material, while EN 1.7225 steel 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 EN 1.7225 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.6
190
Tensile Strength: Ultimate (UTS), MPa 87
540 to 1850

Thermal Properties

Maximum Temperature: Mechanical, °C 200
420
Specific Heat Capacity, J/kg-K 1100
470
Thermal Conductivity, W/m-K 0.18
46
Thermal Expansion, µm/m-K 53
13

Otherwise Unclassified Properties

Density, g/cm3 1.4
7.8

Common Calculations

Stiffness to Weight: Axial, points 1.1
13
Stiffness to Weight: Bending, points 33
24
Strength to Weight: Axial, points 18
19 to 65
Strength to Weight: Bending, points 32
19 to 43
Thermal Diffusivity, mm2/s 0.12
12
Thermal Shock Resistance, points 45
16 to 54