Materials / Compare
Plastic ABS vs. FDM PAHT-CF
Compare Plastic ABS vs. FDM PAHT-CF strength, stiffness, weight and thermal properties.
| Try it on a partA bracket to run stress or thermal on, free in your browser | Open in LessCAD | Open in LessCAD |
|---|---|---|
| Mechanical | ||
| Yield strength | 38.1MPasourcetypical | not given (tensile used) |
| Ultimate tensile strength | 38.1MPasourcetypical, peak stress (= stress at yield) | 92MPasourcetypical |
| Flexural strength | 61.1MPasourcetypical | 125MPasourcetypical2.05x stronger in bending |
| Elongation at break | 4.6%sourcetypical | 8.4%sourcetypical1.83x more ductile |
| Young's modulus (stiffness) | 1.96GPasourcetypical | 3.86GPasourcetypical1.97x stiffer |
| Density | 1,100kg/m³sourcetypical | 1,060kg/m³sourcetypical |
| Strength to weight | 34.6kN·m/kg | 86.8kN·m/kg2.51x higher |
| Stiffness to weight | 1.78MN·m/kg | 3.64MN·m/kg2.04x higher |
| Poisson's ratio | 0.39sourcebase material: ABS family typical (Covestro Part and Mold Design guide, Table 3-1) | not sourced |
| Shear modulus | 0.706GPa | not sourced |
| Bulk modulus | 2.97GPa | not sourced |
| Speed of sound | 1,336m/s | 1,908m/s |
| Thermal | ||
| Thermal conductivity | 0.17W/m·Ksourcebase material: INEOS Styrolution Terluran GP-22 injection-molding ABS, typical | not sourced |
| Thermal expansion | 80–110µm/m·Ksourcebase material: INEOS Styrolution Terluran GP-22 injection-molding ABS, range | not sourced |
| 100 mm part over a 50 °C swing | 475µm growth | not sourced |
| Specific heat | not sourced | not sourced |
| Heats up and cools (diffusivity) | not sourced | not sourced |
| Thermal shock resistance | 21.2W/m | not sourced |
| Melting point | not sourced | 225°Csourcetypical |
| Glass transition | 101°Csourcetypical | 70°Csourcetypical |
| Max service temperature | 86.6°CsourceHDT 0.455 MPa (printed specimens) | 170°CsourceHDT 1.8 MPa |
| Values for | Ultimaker ABS, 3D-printed specimens, XY (flat); Ultimaker S5 Pro, engineering intent profile, 0.15 mm layer height, AA 0.4 print core, 100% infill, Cura 4.9, printed one-at-a-time, conditioned >=24 h at room temperature. TDS v5.00, April 20, 2022. | Bambu Lab PAHT-CF, TDS V3.0, printed specimens X-Y, dry state; nozzle 290 °C, bed 100 °C, 100 mm/s, 100% infill; annealed and dried 80 °C for 12 h before testing. |
Every value links to the document that states it. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.
Plastic ABS and FDM PAHT-CF are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Is Plastic ABS stronger than FDM PAHT-CF?
FDM PAHT-CF is stronger: its tensile strength is 92 MPa against yield strength 38.1 MPa for Plastic ABS (2.41x).
Which is lighter, Plastic ABS or FDM PAHT-CF?
FDM PAHT-CF is lighter: 1,060 kg/m³ against 1,100 kg/m³ for Plastic ABS.
Which is stiffer, Plastic ABS or FDM PAHT-CF?
FDM PAHT-CF is stiffer: Young's modulus 3.86 GPa against 1.96 GPa for Plastic ABS, so the same part in FDM PAHT-CF deflects less under the same load.
Which is lighter for the same job, Plastic ABS or FDM PAHT-CF?
For the same stiffness or strength: FDM PAHT-CF is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam, strong panel or plate.
| Part that must be | Plastic ABS | FDM PAHT-CF |
|---|---|---|
| Stiff rod or tie (tension) | 2.04x heavier | lighter |
| Stiff beam (bending) | 46% heavier | lighter |
| Stiff panel or plate | 30% heavier | lighter |
| Strong rod or tie | 2.51x heavier | lighter |
| Strong beam | 1.87x heavier | lighter |
| Strong panel or plate | 1.61x heavier | lighter |
For the same stiffness or strength, mass scales with density over stiffness (or strength) raised to a power set by how the part is loaded: 1 for a rod in tension, 1/2 for a beam in bending, 1/3 for a panel (the standard material-selection indices).
Which is more ductile, Plastic ABS or FDM PAHT-CF?
FDM PAHT-CF stretches further before it breaks: 8.4% elongation at break against 4.6% for Plastic ABS.