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PEI vs. PHB

Both PEI and PHB are thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.

For each property being compared, the top bar is PEI and the bottom bar is PHB.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 3.4 to 5.6
1.3
Elongation at Break, % 3.0 to 34
7.5
Flexural Strength, MPa 140 to 210
20
Tensile Strength: Ultimate (UTS), MPa 110 to 160
30

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 200 to 210
60
Maximum Temperature: Mechanical, °C 170
120

Electrical Properties

Electrical Resistivity Order of Magnitude, 10x Ω-m 14 to 15
14

Otherwise Unclassified Properties

Density, g/cm3 1.3 to 1.5
1.3
Water Absorption After 24 Hours, % 0.17 to 0.25
0.75

Common Calculations

Stiffness to Weight: Axial, points 1.5 to 2.1
0.58
Stiffness to Weight: Bending, points 39
29
Strength to Weight: Axial, points 24 to 30
6.7
Strength to Weight: Bending, points 40 to 44
17