Materials / Compare
FDM ASA vs. FDM PAHT-CF
Compare FDM ASA 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 | not given (tensile used) | not given (tensile used) |
| Ultimate tensile strength | 37MPasourcetypical | 92MPasourcetypical2.49x stronger |
| Flexural strength | 65MPasourcetypical | 125MPasourcetypical1.92x stronger in bending |
| Elongation at break | 9.2%sourcetypical | 8.4%sourcetypical |
| Young's modulus (stiffness) | 2.45GPasourcetypical | 3.86GPasourcetypical1.58x stiffer |
| Density | 1,050kg/m³sourcetypical | 1,060kg/m³sourcetypical |
| Strength to weight | 35.2kN·m/kg | 86.8kN·m/kg2.46x higher |
| Stiffness to weight | 2.33MN·m/kg | 3.64MN·m/kg1.56x higher |
| Poisson's ratio | not sourced | not sourced |
| Shear modulus | not sourced | not sourced |
| Bulk modulus | not sourced | not sourced |
| Speed of sound | 1,528m/s | 1,908m/s |
| Thermal | ||
| Thermal conductivity | 0.17W/m·Ksourcebase material: INEOS Styrolution Luran S 777K injection-molding ASA, typical | not sourced |
| Thermal expansion | 80–110µm/m·Ksourcebase material: INEOS Styrolution Luran S 777K injection-molding ASA, 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 | not sourced | not sourced |
| Melting point | not sourced | 225°Csourcetypical |
| Glass transition | not sourced | 70°Csourcetypical |
| Max service temperature | 92°CsourceHDT 1.8 MPa | 170°CsourceHDT 1.8 MPa1.85x hotter |
| Values for | Bambu Lab ASA, TDS V3.0, printed specimens X-Y; nozzle 260 °C, bed 80 °C, 200 mm/s, 100% infill; annealed and dried 80 °C for 12 h before testing. | 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.
FDM ASA and FDM PAHT-CF are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Is FDM ASA stronger than FDM PAHT-CF?
FDM PAHT-CF is stronger: its tensile strength is 92 MPa against 37 MPa for FDM ASA (2.49x).
Which is lighter, FDM ASA or FDM PAHT-CF?
FDM ASA is lighter: 1,050 kg/m³ against 1,060 kg/m³ for FDM PAHT-CF.
Which is stiffer, FDM ASA or FDM PAHT-CF?
FDM PAHT-CF is stiffer: Young's modulus 3.86 GPa against 2.45 GPa for FDM ASA, so the same part in FDM PAHT-CF deflects less under the same load.
Which is lighter for the same job, FDM ASA 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 | FDM ASA | FDM PAHT-CF |
|---|---|---|
| Stiff rod or tie (tension) | 1.56x heavier | lighter |
| Stiff beam (bending) | 24% heavier | lighter |
| Stiff panel or plate | 15% heavier | lighter |
| Strong rod or tie | 2.46x heavier | lighter |
| Strong beam | 1.82x heavier | lighter |
| Strong panel or plate | 1.56x 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 handles higher temperatures, FDM ASA or FDM PAHT-CF?
FDM PAHT-CF does: 170 °C against 92 °C for FDM ASA, both HDT 1.8 MPa.