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DMLS Ti-6Al-4V ELI Titanium vs. Plastic PPS GF40
Compare DMLS Ti-6Al-4V ELI Titanium vs. Plastic PPS GF40 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 | 1,100MPasourcetypical, as built, average of horizontal + vertical (M400) | not given (tensile used) |
| Ultimate tensile strength | 1,270MPasourcetypical, as built, average of horizontal + vertical (M400) | 195MPasourcetensile strength, 5 mm/min |
| Flexural strength | not sourced | 285MPasourceflexural strength at break |
| Elongation at break | 8.7%sourcetypical at break, as built (M400) | 1.9%sourcestrain at break, 5 mm/min |
| Young's modulus (stiffness) | 110GPasourcesame maker and process, sibling grade: EOS Titanium Ti64 (Grade 5) on EOS M 290, as built, XY and Z, typical | 14.7GPasourcetypical, 1 mm/min |
| Density | 4,400kg/m³sourcetypical part density (ISO 3369), M400 | 1,650kg/m³sourcetypical |
| Strength to weight | 250kN·m/kg2.12x higher | 118kN·m/kg |
| Stiffness to weight | 25MN·m/kg2.81x higher | 8.91MN·m/kg |
| Poisson's ratio | 0.342sourcewrought TIMETAL 6-4 (TIMET measurement, mean of 10); composition-level, not DMLS-measured | 0.35sourceglass-reinforced Fortron PPS (class value, not grade-specific) |
| Shear modulus | 41GPa7.53x stiffer in shear | 5.44GPa |
| Bulk modulus | 116GPa | 16.3GPa |
| Speed of sound | 5,000m/s | 2,985m/s |
| Thermal | ||
| Thermal conductivity | 6.6W/m·Ksourcebase material: wrought Ti-6Al-4V / 6-4 ELI (TIMET datasheet), 20 °C | 0.2W/m·Ksource40% glass-reinforced Fortron, 25 °C (not grade-specific) |
| Thermal expansion | 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) | 12µm/m·Ksourceparallel (flow), mean -50 to 90 °C |
| 100 mm part over a 50 °C swing | 45µm growth33% less | 60µm growth |
| Specific heat | 580J/kg·Ksourcebase material: wrought Ti-6Al-4V / 6-4 ELI (TIMET datasheet), 20 °C | not sourced |
| Heats up and cools (diffusivity) | 2.59mm²/s | not sourced |
| Thermal shock resistance | 4,825W/m33.6x more resistant | 144W/m |
| Melting point | 1,630–1,650°Csourcemelting range, wrought TIMETAL 6-4 (composition-level) | 280°CsourceDSC, 10 °C/min |
| Glass transition | not sourced | 90°CsourceDSC, 10 °C/min |
| Max service temperature | not sourced | 270°CsourceHDT 1.8 MPa |
| Values for | 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 | Celanese Fortron 1140L4 (PPS, 40% glass fibre), injection moulding; FORTRON PPS Short-Term Properties Guide (PPS-012, 2016); thermal conductivity and Poisson for 40% glass-reinforced Fortron from the Fortron PPS Design Manual (PPS-050, 2013). |
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.
DMLS Ti-6Al-4V ELI Titanium is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is DMLS Ti-6Al-4V ELI Titanium stronger than Plastic PPS GF40?
DMLS Ti-6Al-4V ELI Titanium is stronger: its yield strength is 1,100 MPa against tensile strength 195 MPa for Plastic PPS GF40 (5.64x).
Which is lighter, DMLS Ti-6Al-4V ELI Titanium or Plastic PPS GF40?
Plastic PPS GF40 is lighter: 1,650 kg/m³ against 4,400 kg/m³ for DMLS Ti-6Al-4V ELI Titanium.
Which is stiffer, DMLS Ti-6Al-4V ELI Titanium or Plastic PPS GF40?
DMLS Ti-6Al-4V ELI Titanium is stiffer: Young's modulus 110 GPa against 14.7 GPa for Plastic PPS GF40, so the same part in DMLS Ti-6Al-4V ELI Titanium deflects less under the same load.
Which is lighter for the same job, DMLS Ti-6Al-4V ELI Titanium or Plastic PPS GF40?
For the same stiffness or strength: DMLS Ti-6Al-4V ELI Titanium is lighter for a stiff rod or tie (tension), stiff beam (bending), strong rod or tie, strong beam; Plastic PPS GF40 is lighter for a stiff panel or plate, strong panel or plate.
| Part that must be | DMLS Ti-6Al-4V ELI Titanium | Plastic PPS GF40 |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 2.81x heavier |
| Stiff beam (bending) | lighter | 3% heavier |
| Stiff panel or plate | 36% heavier | lighter |
| Strong rod or tie | lighter | 2.12x heavier |
| Strong beam | lighter | 19% heavier |
| Strong panel or plate | 12% 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, DMLS Ti-6Al-4V ELI Titanium or Plastic PPS GF40?
DMLS Ti-6Al-4V ELI Titanium conducts heat better: 6.6 W/m·K against 0.2 W/m·K for Plastic PPS GF40.
Which expands less with temperature?
DMLS Ti-6Al-4V ELI Titanium expands less: 9 µm/m·K against 12 µm/m·K for Plastic PPS GF40.
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