Materials / Compare
Plastic Nylon vs. FDM PAHT-CF
Compare Plastic Nylon 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 | 63.1MPasourcetypical | not given (tensile used) |
| Ultimate tensile strength | 63.1MPasourcetypical, peak stress (= stress at yield) | 92MPasourcetypical |
| Flexural strength | 82.9MPasourcetypical | 125MPasourcetypical1.51x stronger in bending |
| Elongation at break | not sourced | 8.4%sourcetypical |
| Young's modulus (stiffness) | 2.33GPasourcetypical | 3.86GPasourcetypical1.66x stiffer |
| Density | 1,140kg/m³sourcetypical | 1,060kg/m³sourcetypical |
| Strength to weight | 55.4kN·m/kg | 86.8kN·m/kg1.57x higher |
| Stiffness to weight | 2.04MN·m/kg | 3.64MN·m/kg1.78x higher |
| Poisson's ratio | 0.4sourcebase material: unfilled polyamide (PA), conditioned, maker design-guide family value (Covestro Table 3-1) | not sourced |
| Shear modulus | 0.833GPa | not sourced |
| Bulk modulus | 3.89GPa | not sourced |
| Speed of sound | 1,430m/s | 1,908m/s |
| Thermal | ||
| Thermal conductivity | 0.33W/m·Ksourcebase material: unreinforced BASF Ultramid PA66 (A3K) and PA6 (B3S), 23 C (same value for both) | not sourced |
| Thermal expansion | 98–102µm/m·Ksourcebase material: unreinforced BASF Ultramid PA66 (A3K, 98) and PA6 (B3S, 102), 23-55 C | not sourced |
| 100 mm part over a 50 °C swing | 500µm growth | not sourced |
| Specific heat | 1,700J/kg·Ksourcebase material: unreinforced BASF Ultramid PA66 (A3K) and PA6 (B3S), 23 C (same value for both) | not sourced |
| Heats up and cools (diffusivity) | 0.17mm²/s | not sourced |
| Thermal shock resistance | 53.6W/m | not sourced |
| Melting point | 188°Csourcetypical | 225°Csourcetypical |
| Glass transition | 55.1°Csourcetypical | 70°Csourcetypical |
| Max service temperature | 89.2°CsourceHDT 0.455 MPa (printed specimens) | 170°CsourceHDT 1.8 MPa |
| Values for | Ultimaker Nylon, 3D-printed specimens, XY (flat), conditioned >=24 h at room temperature; 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 v2.00, 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 Nylon and FDM PAHT-CF are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Is Plastic Nylon stronger than FDM PAHT-CF?
FDM PAHT-CF is stronger: its tensile strength is 92 MPa against yield strength 63.1 MPa for Plastic Nylon (46%).
Which is lighter, Plastic Nylon or FDM PAHT-CF?
FDM PAHT-CF is lighter: 1,060 kg/m³ against 1,140 kg/m³ for Plastic Nylon.
Which is stiffer, Plastic Nylon or FDM PAHT-CF?
FDM PAHT-CF is stiffer: Young's modulus 3.86 GPa against 2.33 GPa for Plastic Nylon, so the same part in FDM PAHT-CF deflects less under the same load.
Which is lighter for the same job, Plastic Nylon 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 Nylon | FDM PAHT-CF |
|---|---|---|
| Stiff rod or tie (tension) | 1.78x heavier | lighter |
| Stiff beam (bending) | 38% heavier | lighter |
| Stiff panel or plate | 27% heavier | lighter |
| Strong rod or tie | 1.57x heavier | lighter |
| Strong beam | 38% heavier | lighter |
| Strong panel or plate | 30% 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).