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ABS vs. PBT

Both ABS and PBT are thermoplastics. There are 12 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 ABS and the bottom bar is PBT.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

Density, g/cm3 1.0 to 1.4
1.3 to 1.5

Common Calculations

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