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PES vs. ASTM Grade HN Steel

PES and ASTM grade HN steel belong to fundamentally different material chemistries. PES is a polymeric material, while ASTM grade HN 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 (29, 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 ASTM grade HN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.6
200
Elongation at Break, % 65
9.0
Tensile Strength: Ultimate (UTS), MPa 87
500

Thermal Properties

Maximum Temperature: Mechanical, °C 200
1080
Specific Heat Capacity, J/kg-K 1100
480
Thermal Conductivity, W/m-K 0.18
13
Thermal Expansion, µm/m-K 53
16

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
17
Strength to Weight: Bending, points 32
18
Thermal Diffusivity, mm2/s 0.12
3.5
Thermal Shock Resistance, points 45
11