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PES vs. Grade 365 Molybdenum

PES and grade 365 molybdenum belong to fundamentally different material chemistries. PES is a polymeric material, while grade 365 molybdenum is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 11 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 grade 365 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.6
310
Elongation at Break, % 65
6.3
Tensile Strength: Ultimate (UTS), MPa 87
620

Thermal Properties

Specific Heat Capacity, J/kg-K 1100
250
Thermal Expansion, µm/m-K 53
7.0

Otherwise Unclassified Properties

Density, g/cm3 1.4
10

Common Calculations

Stiffness to Weight: Axial, points 1.1
17
Stiffness to Weight: Bending, points 33
22
Strength to Weight: Axial, points 18
17
Strength to Weight: Bending, points 32
16
Thermal Shock Resistance, points 45
21