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DMLS Ti-6Al-4V ELI Titanium vs. PCB Laminate FR-4
Compare DMLS Ti-6Al-4V ELI Titanium vs. PCB Laminate FR-4 strength, stiffness, weight and thermal properties.
| Try it on a partA sample part 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) | 246–385MPasourcetypical, in-plane: cross direction .. length direction (ASTM D3039) |
| Flexural strength | not sourced | 531–621MPasourcetypical: cross direction .. length direction (IPC-TM-650 2.4.4B) |
| Elongation at break | 8.7%sourcetypical at break, as built (M400) | not sourced |
| 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 | 21.9–25.8GPasourcetypical, in-plane: cross direction .. length direction (ASTM D790-15e2) |
| Density | 4,400kg/m³sourcetypical part density (ISO 3369), M400 | 1,920kg/m³sourcetypical, 50% resin content; another FR-4 producer: Park Nelco N4000-6 (high-Tg multifunctional epoxy), not Isola 370HR |
| Strength to weight | 250kN·m/kg1.52x higher | 164kN·m/kg |
| Stiffness to weight | 25MN·m/kg2.01x higher | 12.4MN·m/kg |
| Poisson's ratio | 0.342sourcewrought TIMETAL 6-4 (TIMET measurement, mean of 10); composition-level, not DMLS-measured | 0.171–0.177sourcetypical, in-plane: cross direction .. length direction |
| Shear modulus | 41GPa4.03x stiffer in shear | 10.2GPa |
| Bulk modulus | 116GPa | 12.2GPa |
| Speed of sound | 5,000m/s | 3,525m/s |
| Thermal | ||
| Thermal conductivity | 6.6W/m·Ksourcebase material: wrought Ti-6Al-4V / 6-4 ELI (TIMET datasheet), 20 °C | 0.4W/m·Ksourcetypical (ASTM E1952); direction not stated by the sheet |
| 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) | 13–14µm/m·Ksourcetypical, in-plane X/Y-axis, below Tg (IPC-TM-650 2.4.24C) |
| 100 mm part over a 50 °C swing | 45µm growth1.5x less | 67.5µm growth |
| Specific heat | 580J/kg·Ksourcebase material: wrought Ti-6Al-4V / 6-4 ELI (TIMET datasheet), 20 °C | 1,200–1,400J/kg·Ksourcetypical (ASTM E1461); another FR-4 producer: Park Nelco N4000-6 (high-Tg multifunctional epoxy), not Isola 370HR |
| Heats up and cools (diffusivity) | 2.59mm²/s16.1x faster | 0.16mm²/s |
| Thermal shock resistance | 4,825W/m14.9x more resistant | 324W/m |
| Melting point | 1,630–1,650°Csourcemelting range, wrought TIMETAL 6-4 (composition-level) | not sourced |
| Glass transition | not sourced | 180°Csourcetypical, DSC (IPC-TM-650 2.4.25C) |
| Max service temperature | not sourced | 130°CsourceUL Relative Thermal Index (UL 796) |
| 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 | Isola 370HR FR-4 laminate (Polyclad PCL-FR-370HR, 180 C Tg multifunctional epoxy, E-glass fabric), copper removed; Isola data sheet Revision C, last updated April 15, 2021. Woven-glass laminate: the sheet gives in-plane values per weave direction (length / cross) and the Z-axis CTE separately; the solver is isotropic per material. |
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 PCB Laminate FR-4?
DMLS Ti-6Al-4V ELI Titanium is stronger: its yield strength is 1,100 MPa against tensile strength 315 MPa for PCB Laminate FR-4 (3.49x).
Which is lighter, DMLS Ti-6Al-4V ELI Titanium or PCB Laminate FR-4?
PCB Laminate FR-4 is lighter: 1,920 kg/m³ against 4,400 kg/m³ for DMLS Ti-6Al-4V ELI Titanium.
Which is stiffer, DMLS Ti-6Al-4V ELI Titanium or PCB Laminate FR-4?
DMLS Ti-6Al-4V ELI Titanium is stiffer: Young's modulus 110 GPa against 23.9 GPa for PCB Laminate FR-4, 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 PCB Laminate FR-4?
For the same stiffness or strength: DMLS Ti-6Al-4V ELI Titanium is lighter for a stiff rod or tie (tension), strong rod or tie; PCB Laminate FR-4 is lighter for a stiff beam (bending), stiff panel or plate, strong panel or plate.
| Part that must be | DMLS Ti-6Al-4V ELI Titanium | PCB Laminate FR-4 |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 2.01x heavier |
| Stiff beam (bending) | 7% heavier | lighter |
| Stiff panel or plate | 38% heavier | lighter |
| Strong rod or tie | lighter | 1.52x heavier |
| Strong beam | about equal | about equal |
| Strong panel or plate | 23% 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 PCB Laminate FR-4?
DMLS Ti-6Al-4V ELI Titanium conducts heat better: 6.6 W/m·K against 0.4 W/m·K for PCB Laminate FR-4.
Which expands less with temperature?
DMLS Ti-6Al-4V ELI Titanium expands less: 9 µm/m·K against 13.5 µm/m·K for PCB Laminate FR-4.
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