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PES vs. AISI W1 Steel

PES and AISI W1 steel belong to fundamentally different material chemistries. PES is a polymeric material, while AISI W1 steel is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 12 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 AISI W1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.6
190
Tensile Strength: Ultimate (UTS), MPa 87
590 to 2320

Thermal Properties

Specific Heat Capacity, J/kg-K 1100
470
Thermal Conductivity, W/m-K 0.18
48
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
13
Stiffness to Weight: Bending, points 33
24
Strength to Weight: Axial, points 18
21 to 83
Strength to Weight: Bending, points 32
20 to 50
Thermal Diffusivity, mm2/s 0.12
13
Thermal Shock Resistance, points 45
22 to 85