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PES vs. ACI-ASTM CA28MWV Steel

PES and ACI-ASTM CA28MWV steel belong to fundamentally different material chemistries. PES is a polymeric material, while ACI-ASTM CA28MWV 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 (36, 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 ACI-ASTM CA28MWV steel.

Polyethersulfone (PES)ACI-ASTM CA28MWV (J91422) Cast Stainless Steel
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.6
200
Elongation at Break, % 65
11
Tensile Strength: Ultimate (UTS), MPa 87
1080

Thermal Properties

Maximum Temperature: Mechanical, °C 200
740
Specific Heat Capacity, J/kg-K 1100
470
Thermal Conductivity, W/m-K 0.18
25
Thermal Expansion, µm/m-K 53
10

Otherwise Unclassified Properties

Density, g/cm3 1.4
7.9

Common Calculations

Stiffness to Weight: Axial, points 1.1
14
Stiffness to Weight: Bending, points 33
25
Strength to Weight: Axial, points 18
38
Strength to Weight: Bending, points 32
30
Thermal Diffusivity, mm2/s 0.12
6.6
Thermal Shock Resistance, points 45
40