Materials / Compare
FDM PAHT-CF vs. Steel AISI 1045
Compare FDM PAHT-CF vs. Steel AISI 1045 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) | 531MPasourceproducer-stated, cold drawn |
| Ultimate tensile strength | 92MPasourcetypical | 627MPasourceproducer-stated, cold drawn |
| Flexural strength | 125MPasourcetypical | not sourced |
| Elongation at break | 8.4%sourcetypical | 12%sourcein 2 in (50.8 mm) |
| Young's modulus (stiffness) | 3.86GPasourcetypical | 210GPasourcetypical54.4x stiffer |
| Density | 1,060kg/m³sourcetypical7.36x lighter | 7,800kg/m³sourcetypical |
| Strength to weight | 86.8kN·m/kg27% higher | 68.1kN·m/kg |
| Stiffness to weight | 3.64MN·m/kg | 26.9MN·m/kg7.39x higher |
| Poisson's ratio | not sourced | 0.3sourcetypical |
| Shear modulus | not sourced | 80.8GPa |
| Bulk modulus | not sourced | 175GPa |
| Speed of sound | 1,908m/s | 5,189m/s |
| Thermal | ||
| Thermal conductivity | not sourced | 40–45W/m·Ksourcetypical range, ambient |
| Thermal expansion | not sourced | 12µm/m·Ksourcetypical, mean 20-300 °C |
| 100 mm part over a 50 °C swing | not sourced | 60µm growth |
| Specific heat | not sourced | 460–480J/kg·Ksourcetypical range, 50/100 °C |
| Heats up and cools (diffusivity) | not sourced | 11.6mm²/s |
| Thermal shock resistance | not sourced | 6,269W/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. | AISI 1045 cold drawn bar (Niagara LaSalle) for mechanical; Ovako C45 (lists 'SAE 1045' as a similar designation) for physical constants |
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 Steel AISI 1045?
Steel AISI 1045 is stronger: its yield strength is 531 MPa against tensile strength 92 MPa for FDM PAHT-CF (5.77x).
Which is lighter, FDM PAHT-CF or Steel AISI 1045?
FDM PAHT-CF is lighter: 1,060 kg/m³ against 7,800 kg/m³ for Steel AISI 1045.
Which is stiffer, FDM PAHT-CF or Steel AISI 1045?
Steel AISI 1045 is stiffer: Young's modulus 210 GPa against 3.86 GPa for FDM PAHT-CF, so the same part in Steel AISI 1045 deflects less under the same load.
Which is lighter for the same job, FDM PAHT-CF or Steel AISI 1045?
For the same stiffness or strength: FDM PAHT-CF is lighter for a stiff panel or plate, strong rod or tie, strong beam, strong panel or plate; Steel AISI 1045 is lighter for a stiff rod or tie (tension).
| Part that must be | FDM PAHT-CF | Steel AISI 1045 |
|---|---|---|
| Stiff rod or tie (tension) | 7.39x heavier | lighter |
| Stiff beam (bending) | about equal | about equal |
| Stiff panel or plate | lighter | 1.94x heavier |
| Strong rod or tie | lighter | 27% heavier |
| Strong beam | lighter | 2.29x heavier |
| Strong panel or plate | lighter | 3.06x 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).