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PBI vs. PA 11

PBI belongs to the thermoset plastics classification, while PA 11 belongs to the 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 PBI and the bottom bar is PA 11.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 5.9
0.4 to 1.3
Elongation at Break, % 3.0
80 to 130
Tensile Strength: Ultimate (UTS), MPa 160
25 to 51

Thermal Properties

Specific Heat Capacity, J/kg-K 930
1740
Thermal Conductivity, W/m-K 0.41
0.28

Otherwise Unclassified Properties

Density, g/cm3 1.3
1.0
Limiting Oxygen Index (LOI), % 58
29

Common Calculations

Stiffness to Weight: Axial, points 2.5
0.22 to 0.71
Stiffness to Weight: Bending, points 46
24 to 36
Strength to Weight: Axial, points 34
6.7 to 14
Strength to Weight: Bending, points 50
18 to 30
Thermal Diffusivity, mm2/s 0.34
0.16