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PBT vs. ABS

Both PBT and ABS are thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

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

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.7 to 8.7
2.0 to 2.6
Elongation at Break, % 2.5 to 43
3.5 to 50
Flexural Modulus, GPa 2.6 to 9.1
2.1 to 7.6
Flexural Strength, MPa 79 to 210
72 to 97
Tensile Strength: Ultimate (UTS), MPa 58 to 140
37 to 110

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 4.0
76 to 110
Heat Deflection Temperature At 455 kPa (66 psi), °C 160
83 to 110

Otherwise Unclassified Properties

Density, g/cm3 1.3 to 1.5
1.0 to 1.4

Common Calculations

Stiffness to Weight: Axial, points 1.1 to 3.2
0.79 to 1.4
Stiffness to Weight: Bending, points 35 to 45
30 to 44
Strength to Weight: Axial, points 12 to 25
10 to 22
Strength to Weight: Bending, points 25 to 38
24 to 37