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PA 11 vs. PBI

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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