Materials / Compare
DMLS AlSi10Mg Aluminum vs. Titanium Ti-6Al-4V
Compare DMLS AlSi10Mg Aluminum vs. Titanium Ti-6Al-4V 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 | 270MPasourcetypical, as manufactured, horizontal | 885MPasourcetypical, plate (>0.187 in), annealed, 0.2% offset |
| Ultimate tensile strength | 450MPasourcetypical, as manufactured, horizontal | 940MPasourcetypical, plate, annealed |
| Elongation at break | 10.2%sourcetypical at break, as manufactured, horizontal | 16%sourcetypical, in 2 in., plate annealed |
| Young's modulus (stiffness) | 72GPasourcesame material and process, different machine maker: Renishaw RenAM 500, 30 µm, as built, horizontal (XY) | 107–122GPasourcetypical range, 20 °C |
| Density | 2,670kg/m³sourcetypical part density (ISO 3369), EOS M 290, AlSi10Mg_030_FlexM291 (30 µm) | 4,430kg/m³sourcenominal |
| Strength to weight | 101kN·m/kg | 200kN·m/kg1.98x higher |
| Stiffness to weight | 27MN·m/kg4% higher | 25.8MN·m/kg |
| Poisson's ratio | 0.33sourcebase material: cast Al-Si-Mg alloy 359.0 (Al-9Si-0.6Mg, closest MIL-HDBK-5J alloy to AlSi10Mg / EN AC-43000) | 0.342sourcemean of TIMET measurements |
| Shear modulus | 27.1GPa | 42.7GPa1.58x stiffer in shear |
| Bulk modulus | 70.6GPa | 121GPa |
| Speed of sound | 5,193m/s | 5,084m/s |
| Thermal | ||
| Thermal conductivity | 110W/m·Ksourcetypical, as manufactured, horizontal (ISO 22007-2) | 6.6W/m·Ksourcetypical, 20 °C, mill annealed |
| Thermal expansion | 20µm/m·Ksourcemean 25-100 °C, ASTM E228 | 9µm/m·Ksourcetypical, mean 0-100 °C |
| 100 mm part over a 50 °C swing | 100µm growth | 45µm growth2.22x less |
| Specific heat | 963J/kg·Ksourcebase material: cast Al-Si-Mg alloy 359.0 (MIL-HDBK-5J), at 100 °C | 580J/kg·Ksourcetypical, 20 °C |
| Heats up and cools (diffusivity) | 42.8mm²/s16.7x faster | 2.57mm²/s |
| Thermal shock resistance | 13,819W/m3.71x more resistant | 3,730W/m |
| Melting point | not sourced | 1,630–1,650°Csourcemelting range |
| Max service temperature | not sourced | 400°Csourceupper recommended use temperature |
| Values for | EOS Aluminium AlSi10Mg (powder 9011-0024), EOS M 290 | 30 µm process (AlSi10Mg_FlexM291 2.01), as manufactured, horizontal; machined (turned) specimens, ISO 6892-1 B10 | TIMETAL 6-4 (Ti-6Al-4V Grade 5) annealed plate typical (TIMET properties manual) + TIMET datasheet TMC-0150 physical properties |
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 AlSi10Mg Aluminum is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is DMLS AlSi10Mg Aluminum stronger than Titanium Ti-6Al-4V?
Titanium Ti-6Al-4V is stronger: its yield strength is 885 MPa against 270 MPa for DMLS AlSi10Mg Aluminum (3.28x).
Which is lighter, DMLS AlSi10Mg Aluminum or Titanium Ti-6Al-4V?
DMLS AlSi10Mg Aluminum is lighter: 2,670 kg/m³ against 4,430 kg/m³ for Titanium Ti-6Al-4V.
Which is stiffer, DMLS AlSi10Mg Aluminum or Titanium Ti-6Al-4V?
Titanium Ti-6Al-4V is stiffer: Young's modulus 115 GPa against 72 GPa for DMLS AlSi10Mg Aluminum, so the same part in Titanium Ti-6Al-4V deflects less under the same load.
Which is lighter for the same job, DMLS AlSi10Mg Aluminum or Titanium Ti-6Al-4V?
For the same stiffness or strength: DMLS AlSi10Mg Aluminum is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate; Titanium Ti-6Al-4V is lighter for a strong rod or tie, strong beam, strong panel or plate.
| Part that must be | DMLS AlSi10Mg Aluminum | Titanium Ti-6Al-4V |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 4% heavier |
| Stiff beam (bending) | lighter | 32% heavier |
| Stiff panel or plate | lighter | 42% heavier |
| Strong rod or tie | 1.98x heavier | lighter |
| Strong beam | 33% heavier | lighter |
| Strong panel or plate | 9% 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 AlSi10Mg Aluminum or Titanium Ti-6Al-4V?
DMLS AlSi10Mg Aluminum conducts heat better: 110 W/m·K against 6.6 W/m·K for Titanium Ti-6Al-4V.
Which expands less with temperature?
Titanium Ti-6Al-4V expands less: 9 µm/m·K against 20 µm/m·K for DMLS AlSi10Mg Aluminum.
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