Materials / Compare
FDM HIPS vs. Steel AISI 1045
Compare FDM HIPS 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 | 18.4MPasourcetypical | 627MPasourceproducer-stated, cold drawn |
| Flexural strength | 31.8MPasourcetypical | not sourced |
| Elongation at break | 1.4%sourcetypical | 12%sourcein 2 in (50.8 mm) |
| Young's modulus (stiffness) | 1.59GPasourcetypical | 210GPasourcetypical132x stiffer |
| Density | 1,023kg/m³sourcetypical7.62x lighter | 7,800kg/m³sourcetypical |
| Strength to weight | 18kN·m/kg | 68.1kN·m/kg3.78x higher |
| Stiffness to weight | 1.55MN·m/kg | 26.9MN·m/kg17.3x higher |
| Poisson's ratio | not sourced | 0.3sourcetypical |
| Shear modulus | not sourced | 80.8GPa |
| Bulk modulus | not sourced | 175GPa |
| Speed of sound | 1,246m/s | 5,189m/s |
| Thermal | ||
| Thermal conductivity | 0.17W/m·Ksourcebase material: INEOS Styrolution PS 486N injection-molding HIPS, typical | 40–45W/m·Ksourcetypical range, ambient |
| Thermal expansion | 80µm/m·Ksourcebase material: INEOS Styrolution PS 486N injection-molding HIPS, typical | 12µm/m·Ksourcetypical, mean 20-300 °C |
| 100 mm part over a 50 °C swing | 400µm growth | 60µm growth6.67x less |
| 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 |
| Glass transition | 99°Csourcetypical | not sourced |
| Max service temperature | 86°CsourceHDT 1.8 MPa | not sourced |
| Values for | BASF Forward AM (BASF 3D Printing Solutions) Ultrafuse HiPS, TDS v2.2 (13.11.2019), printed specimens, XY 'Flat'. Specimen print settings are not stated; recommended processing on the sheet: nozzle 240-260 °C, bed 100-120 °C, 40-80 mm/s. Product is discontinued (Forward AM product page) but the TDS is still served by Forward AM. | 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 HIPS is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is FDM HIPS stronger than Steel AISI 1045?
Steel AISI 1045 is stronger: its yield strength is 531 MPa against tensile strength 18.4 MPa for FDM HIPS (28.9x).
Which is lighter, FDM HIPS or Steel AISI 1045?
FDM HIPS is lighter: 1,023 kg/m³ against 7,800 kg/m³ for Steel AISI 1045.
Which is stiffer, FDM HIPS or Steel AISI 1045?
Steel AISI 1045 is stiffer: Young's modulus 210 GPa against 1.59 GPa for FDM HIPS, so the same part in Steel AISI 1045 deflects less under the same load.
Which is lighter for the same job, FDM HIPS or Steel AISI 1045?
For the same stiffness or strength: FDM HIPS is lighter for a stiff panel or plate, strong panel or plate; Steel AISI 1045 is lighter for a stiff rod or tie (tension), stiff beam (bending), strong rod or tie, strong beam.
| Part that must be | FDM HIPS | Steel AISI 1045 |
|---|---|---|
| Stiff rod or tie (tension) | 17.3x heavier | lighter |
| Stiff beam (bending) | 1.51x heavier | lighter |
| Stiff panel or plate | lighter | 50% heavier |
| Strong rod or tie | 3.78x heavier | lighter |
| Strong beam | 23% heavier | lighter |
| Strong panel or plate | lighter | 42% 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).
Which conducts heat better, FDM HIPS or Steel AISI 1045?
Steel AISI 1045 conducts heat better: 42.5 W/m·K against 0.17 W/m·K for FDM HIPS.
Which expands less with temperature?
Steel AISI 1045 expands less: 12 µm/m·K against 80 µm/m·K for FDM HIPS.