Materials / Compare
FDM HIPS vs. DMLS Ti-6Al-4V ELI Titanium
Compare FDM HIPS vs. DMLS Ti-6Al-4V ELI Titanium 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) | 1,100MPasourcetypical, as built, average of horizontal + vertical (M400) |
| Ultimate tensile strength | 18.4MPasourcetypical | 1,270MPasourcetypical, as built, average of horizontal + vertical (M400) |
| Flexural strength | 31.8MPasourcetypical | not sourced |
| Elongation at break | 1.4%sourcetypical | 8.7%sourcetypical at break, as built (M400) |
| Young's modulus (stiffness) | 1.59GPasourcetypical | 110GPasourcesame maker and process, sibling grade: EOS Titanium Ti64 (Grade 5) on EOS M 290, as built, XY and Z, typical |
| Density | 1,023kg/m³sourcetypical | 4,400kg/m³sourcetypical part density (ISO 3369), M400 |
| Strength to weight | 18kN·m/kg | 250kN·m/kg13.9x higher |
| Stiffness to weight | 1.55MN·m/kg | 25MN·m/kg16.1x higher |
| Poisson's ratio | not sourced | 0.342sourcewrought TIMETAL 6-4 (TIMET measurement, mean of 10); composition-level, not DMLS-measured |
| Shear modulus | not sourced | 41GPa |
| Bulk modulus | not sourced | 116GPa |
| Speed of sound | 1,246m/s | 5,000m/s |
| Thermal | ||
| Thermal conductivity | 0.17W/m·Ksourcebase material: INEOS Styrolution PS 486N injection-molding HIPS, typical | 6.6W/m·Ksourcebase material: wrought Ti-6Al-4V / 6-4 ELI (TIMET datasheet), 20 °C |
| Thermal expansion | 80µm/m·Ksourcebase material: INEOS Styrolution PS 486N injection-molding HIPS, typical | 9µm/m·Ksourcemean 25-100 °C, ASTM E228; EOS Ti64 Grade 23 (=ELI) on EOS M 290 40 µm; condition not stated (sheet's mechanical data are heat treated) |
| 100 mm part over a 50 °C swing | 400µm growth | 45µm growth8.89x less |
| Specific heat | not sourced | 580J/kg·Ksourcebase material: wrought Ti-6Al-4V / 6-4 ELI (TIMET datasheet), 20 °C |
| Heats up and cools (diffusivity) | not sourced | 2.59mm²/s |
| Thermal shock resistance | not sourced | 4,825W/m |
| Melting point | not sourced | 1,630–1,650°Csourcemelting range, wrought TIMETAL 6-4 (composition-level) |
| 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. | EOS Titanium Ti64ELI (powder 9011-0040; ASTM F136/F3001, i.e. Grade 23) on EOS M400 SF, parameter set Ti64ELI_030_FlexM400_100, 30 µm, as built; ISO 6892-1 A14 |
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 and DMLS Ti-6Al-4V ELI Titanium are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Is FDM HIPS stronger than DMLS Ti-6Al-4V ELI Titanium?
DMLS Ti-6Al-4V ELI Titanium is stronger: its yield strength is 1,100 MPa against tensile strength 18.4 MPa for FDM HIPS (59.8x).
Which is lighter, FDM HIPS or DMLS Ti-6Al-4V ELI Titanium?
FDM HIPS is lighter: 1,023 kg/m³ against 4,400 kg/m³ for DMLS Ti-6Al-4V ELI Titanium.
Which is stiffer, FDM HIPS or DMLS Ti-6Al-4V ELI Titanium?
DMLS Ti-6Al-4V ELI Titanium is stiffer: Young's modulus 110 GPa against 1.59 GPa for FDM HIPS, so the same part in DMLS Ti-6Al-4V ELI Titanium deflects less under the same load.
Which is lighter for the same job, FDM HIPS or DMLS Ti-6Al-4V ELI Titanium?
For the same stiffness or strength: FDM HIPS is lighter for a stiff panel or plate; DMLS Ti-6Al-4V ELI Titanium is lighter for a stiff rod or tie (tension), stiff beam (bending), strong rod or tie, strong beam, strong panel or plate.
| Part that must be | FDM HIPS | DMLS Ti-6Al-4V ELI Titanium |
|---|---|---|
| Stiff rod or tie (tension) | 16.1x heavier | lighter |
| Stiff beam (bending) | 1.94x heavier | lighter |
| Stiff panel or plate | lighter | 5% heavier |
| Strong rod or tie | 13.9x heavier | lighter |
| Strong beam | 3.55x heavier | lighter |
| Strong panel or plate | 1.8x 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).
Which conducts heat better, FDM HIPS or DMLS Ti-6Al-4V ELI Titanium?
DMLS Ti-6Al-4V ELI Titanium conducts heat better: 6.6 W/m·K against 0.17 W/m·K for FDM HIPS.
Which expands less with temperature?
DMLS Ti-6Al-4V ELI Titanium expands less: 9 µm/m·K against 80 µm/m·K for FDM HIPS.