ABS vs. Unfilled PBT
Both ABS and unfilled PBT are thermoplastics. There are 18 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.
For each property being compared, the top bar is ABS and the bottom bar is unfilled PBT.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 2.0 to 2.6 | |
| 2.7 |
| Elongation at Break, % | 3.5 to 50 | |
| 43 |
| Flexural Modulus, GPa | 2.1 to 7.6 | |
| 2.6 |
| Flexural Strength, MPa | 72 to 97 | |
| 79 |
| Impact Strength: Notched Izod, J/m | 70 to 370 | |
| 47 |
| Rockwell R Hardness | 100 to 110 | |
| 120 |
| Tensile Strength: Ultimate (UTS), MPa | 37 to 110 | |
| 58 |
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 |
| Thermal Expansion, µm/m-K | 81 to 95 | |
| 84 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 Hz | 3.1 to 3.2 | |
| 3.4 |
| Dielectric Strength (Breakdown Potential), kV/mm | 15 to 16 | |
| 26 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.0 to 1.4 | |
| 1.3 |
Common Calculations
| Stiffness to Weight: Axial, points | 0.79 to 1.4 | |
| 1.1 |
| Stiffness to Weight: Bending, points | 30 to 44 | |
| 35 |
| Strength to Weight: Axial, points | 10 to 22 | |
| 12 |
| Strength to Weight: Bending, points | 24 to 37 | |
| 25 |
| Thermal Shock Resistance, points | 11 to 50 | |
| 18 |