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PHB vs. PBT

Both PHB and PBT are thermoplastics. There are 11 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.3
2.7 to 8.7
Elongation at Break, % 7.5
2.5 to 43
Flexural Strength, MPa 20
79 to 210
Tensile Strength: Ultimate (UTS), MPa 30
58 to 140

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 60
4.0
Melting Onset (Solidus), °C 180
230

Otherwise Unclassified Properties

Density, g/cm3 1.3
1.3 to 1.5

Common Calculations

Stiffness to Weight: Axial, points 0.58
1.1 to 3.2
Stiffness to Weight: Bending, points 29
35 to 45
Strength to Weight: Axial, points 6.7
12 to 25
Strength to Weight: Bending, points 17
25 to 38