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PAI vs. EVA

Both PAI and EVA are thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is PAI and the bottom bar is EVA.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 4.0 to 8.3
0.015 to 0.080
Elongation at Break, % 3.0 to 12
300 to 800
Tensile Strength: Ultimate (UTS), MPa 100 to 180
3.0 to 35

Thermal Properties

Maximum Temperature: Decomposition, °C 490
450
Specific Heat Capacity, J/kg-K 910 to 1000
1400
Thermal Conductivity, W/m-K 0.26 to 0.53
0.34

Otherwise Unclassified Properties

Density, g/cm3 1.4 to 1.6
0.93 to 1.0

Common Calculations

Stiffness to Weight: Axial, points 1.6 to 3.2
0.0087 to 0.048
Stiffness to Weight: Bending, points 38 to 47
8.6 to 15
Strength to Weight: Axial, points 19 to 34
0.87 to 10
Strength to Weight: Bending, points 33 to 49
4.8 to 26
Thermal Diffusivity, mm2/s 0.16 to 0.41
0.25 to 0.26