Materials / Compare
FDM PAHT-CF vs. Plastic HDPE
Compare FDM PAHT-CF vs. Plastic HDPE 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) | 24MPasourcetypical, tensile stress at yield 23 °C, 50 mm/min ISO 527 |
| Ultimate tensile strength | 92MPasourcetypical | not sourced |
| Flexural strength | 125MPasourcetypical | not sourced |
| Elongation at break | 8.4%sourcetypical | not sourced |
| Young's modulus (stiffness) | 3.86GPasourcetypical | 0.9GPasourcetypical, tensile modulus 23 °C ISO 527 |
| Density | 1,060kg/m³sourcetypical | 950kg/m³sourcetypical, ISO 1183 |
| Strength to weight | 86.8kN·m/kg3.44x higher | 25.3kN·m/kg |
| Stiffness to weight | 3.64MN·m/kg3.84x higher | 0.947MN·m/kg |
| Poisson's ratio | not sourced | 0.4–0.45sourcebase material: high-density polyethylene family (INEOS Olefins & Polymers USA, Typical Engineering Properties of HDPE) |
| Shear modulus | not sourced | 0.316GPa |
| Bulk modulus | not sourced | 2GPa |
| Speed of sound | 1,908m/s | 973m/s |
| Thermal | ||
| Thermal conductivity | not sourced | 0.4–0.49W/m·Ksourcebase material: high-density polyethylene family (INEOS Olefins & Polymers USA, Typical Engineering Properties of HDPE) |
| Thermal expansion | not sourced | 120µm/m·Ksourcebase material: high-density polyethylene family (INEOS Olefins & Polymers USA, Typical Engineering Properties of HDPE) |
| 100 mm part over a 50 °C swing | not sourced | 600µm growth |
| Specific heat | not sourced | 2,250J/kg·Ksourcebase material: high-density polyethylene family (INEOS Olefins & Polymers USA, Typical Engineering Properties of HDPE) |
| Heats up and cools (diffusivity) | not sourced | 0.208mm²/s |
| Thermal shock resistance | not sourced | 56.9W/m |
| Melting point | 225°Csourcetypical | not sourced |
| Glass transition | 70°Csourcetypical | not sourced |
| Max service temperature | 170°CsourceHDT 1.8 MPa | not sourced |
| 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. | LyondellBasell Hostalen 23050 B high density polyethylene, typical ISO values |
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 HDPE?
FDM PAHT-CF is stronger: its tensile strength is 92 MPa against yield strength 24 MPa for Plastic HDPE (3.83x).
Which is lighter, FDM PAHT-CF or Plastic HDPE?
Plastic HDPE is lighter: 950 kg/m³ against 1,060 kg/m³ for FDM PAHT-CF.
Which is stiffer, FDM PAHT-CF or Plastic HDPE?
FDM PAHT-CF is stiffer: Young's modulus 3.86 GPa against 0.9 GPa for Plastic HDPE, 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 HDPE?
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 HDPE |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 3.84x heavier |
| Stiff beam (bending) | lighter | 1.86x heavier |
| Stiff panel or plate | lighter | 46% heavier |
| Strong rod or tie | lighter | 3.44x heavier |
| Strong beam | lighter | 2.2x heavier |
| Strong panel or plate | lighter | 1.75x 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).