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PAI vs. ABS

Both PAI and ABS are thermoplastics. There are 14 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 4.0 to 8.3
2.0 to 2.6
Elongation at Break, % 3.0 to 12
3.5 to 50
Flexural Modulus, GPa 4.0 to 6.8
2.1 to 7.6
Flexural Strength, MPa 160 to 320
72 to 97
Impact Strength: Notched Izod, J/m 45 to 140
70 to 370
Tensile Strength: Ultimate (UTS), MPa 100 to 180
37 to 110

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 280
76 to 110
Thermal Expansion, µm/m-K 15 to 34
81 to 95

Otherwise Unclassified Properties

Density, g/cm3 1.4 to 1.6
1.0 to 1.4

Common Calculations

Stiffness to Weight: Axial, points 1.6 to 3.2
0.79 to 1.4
Stiffness to Weight: Bending, points 38 to 47
30 to 44
Strength to Weight: Axial, points 19 to 34
10 to 22
Strength to Weight: Bending, points 33 to 49
24 to 37
Thermal Shock Resistance, points 48 to 110
11 to 50