Materials / Compare
FDM PAHT-CF vs. Plastic Nylon PA66
Compare FDM PAHT-CF vs. Plastic Nylon PA66 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) | 85MPasourcetypical, dry |
| Ultimate tensile strength | 92MPasourcetypical | not sourced |
| Flexural strength | 125MPasourcetypical | not sourced |
| Elongation at break | 8.4%sourcetypical | 30%sourcenominal strain at break, dry |
| Young's modulus (stiffness) | 3.86GPasourcetypical | 3GPasourcetypical, dry |
| Density | 1,060kg/m³sourcetypical | 1,130kg/m³sourcetypical |
| Strength to weight | 86.8kN·m/kg15% higher | 75.2kN·m/kg |
| Stiffness to weight | 3.64MN·m/kg37% higher | 2.65MN·m/kg |
| Poisson's ratio | not sourced | 0.4sourcebase material: unfilled polyamide (PA), conditioned, maker design-guide family value (Covestro Table 3-1) |
| Shear modulus | not sourced | 1.07GPa |
| Bulk modulus | not sourced | 5GPa |
| Speed of sound | 1,908m/s | 1,629m/s |
| Thermal | ||
| Thermal conductivity | not sourced | 0.33W/m·Ksourcetypical |
| Thermal expansion | not sourced | 98µm/m·Ksourcelongitudinal, 23-55 °C |
| 100 mm part over a 50 °C swing | not sourced | 490µm growth |
| Specific heat | not sourced | 1,700J/kg·Ksourcetypical |
| Heats up and cools (diffusivity) | not sourced | 0.172mm²/s |
| Thermal shock resistance | not sourced | 57.2W/m |
| Melting point | 225°Csourcetypical | 260°CsourceDSC |
| Glass transition | 70°Csourcetypical | not sourced |
| Max service temperature | 170°CsourceHDT 1.8 MPa | 101°CsourceIEC 60216 temperature index, 20000 h |
| Values for | 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. | BASF Ultramid A3K (PA66, unreinforced injection-moulding grade), Product Information 02/2026, dry values (ISO methods) |
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 PAHT-CF is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is FDM PAHT-CF stronger than Plastic Nylon PA66?
FDM PAHT-CF is stronger: its tensile strength is 92 MPa against yield strength 85 MPa for Plastic Nylon PA66 (8%).
Which is lighter, FDM PAHT-CF or Plastic Nylon PA66?
FDM PAHT-CF is lighter: 1,060 kg/m³ against 1,130 kg/m³ for Plastic Nylon PA66.
Which is stiffer, FDM PAHT-CF or Plastic Nylon PA66?
FDM PAHT-CF is stiffer: Young's modulus 3.86 GPa against 3 GPa for Plastic Nylon PA66, so the same part in FDM PAHT-CF deflects less under the same load.
Which is lighter for the same job, FDM PAHT-CF or Plastic Nylon PA66?
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 PAHT-CF | Plastic Nylon PA66 |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 37% heavier |
| Stiff beam (bending) | lighter | 21% heavier |
| Stiff panel or plate | lighter | 16% heavier |
| Strong rod or tie | lighter | 15% heavier |
| Strong beam | lighter | 12% heavier |
| Strong panel or plate | lighter | 11% heavier |
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).