Materials / Compare
DMLS AlSi10Mg Aluminum vs. Brass C360
Compare DMLS AlSi10Mg Aluminum vs. Brass C360 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 | 310MPasourcetypical, 0.5% extension under load |
| Ultimate tensile strength | 450MPasourcetypical, as manufactured, horizontal | 400MPasourcetypical |
| Elongation at break | 10.2%sourcetypical at break, as manufactured, horizontal | 25%sourcetypical, 1 in. rod |
| Young's modulus (stiffness) | 72GPasourcesame material and process, different machine maker: Renishaw RenAM 500, 30 µm, as built, horizontal (XY) | 96.5GPasourcetypical, temper-independent |
| Density | 2,670kg/m³sourcetypical part density (ISO 3369), EOS M 290, AlSi10Mg_030_FlexM291 (30 µm) | 8,498kg/m³sourcenominal |
| Strength to weight | 101kN·m/kg2.77x higher | 36.5kN·m/kg |
| Stiffness to weight | 27MN·m/kg2.37x higher | 11.4MN·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) | 0.34sourcebase material: leaded free-machining brass CuZn39Pb2 (C37700), Wieland-Z30 rolled products, reference value at room temperature |
| Shear modulus | 27.1GPa | 36GPa33% stiffer in shear |
| Bulk modulus | 70.6GPa | 101GPa |
| Speed of sound | 5,193m/s | 3,370m/s |
| Thermal | ||
| Thermal conductivity | 110W/m·Ksourcetypical, as manufactured, horizontal (ISO 22007-2) | 116W/m·Ksourcetypical, 20 °C |
| Thermal expansion | 20µm/m·Ksourcemean 25-100 °C, ASTM E228 | 20.5µm/m·Ksourcetypical, mean 20-300 °C |
| 100 mm part over a 50 °C swing | 100µm growth3% less | 103µm growth |
| Specific heat | 963J/kg·Ksourcebase material: cast Al-Si-Mg alloy 359.0 (MIL-HDBK-5J), at 100 °C | 377J/kg·Ksourcetypical, 20 °C |
| Heats up and cools (diffusivity) | 42.8mm²/s18% faster | 36.2mm²/s |
| Thermal shock resistance | 13,819W/m15% more resistant | 11,997W/m |
| Melting point | not sourced | 888–899°Csourcesolidus-liquidus |
| 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 | C36000 free-cutting brass, H02 half-hard rod 1 in. section (20% cold work), copper.org typical values |
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 Brass C360?
Brass C360 is stronger: its yield strength is 310 MPa against 270 MPa for DMLS AlSi10Mg Aluminum (15%).
Which is lighter, DMLS AlSi10Mg Aluminum or Brass C360?
DMLS AlSi10Mg Aluminum is lighter: 2,670 kg/m³ against 8,498 kg/m³ for Brass C360.
Which is stiffer, DMLS AlSi10Mg Aluminum or Brass C360?
Brass C360 is stiffer: Young's modulus 96.5 GPa against 72 GPa for DMLS AlSi10Mg Aluminum, so the same part in Brass C360 deflects less under the same load.
Which is lighter for the same job, DMLS AlSi10Mg Aluminum or Brass C360?
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, strong rod or tie, strong beam, strong panel or plate.
| Part that must be | DMLS AlSi10Mg Aluminum | Brass C360 |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 2.37x heavier |
| Stiff beam (bending) | lighter | 2.75x heavier |
| Stiff panel or plate | lighter | 2.89x heavier |
| Strong rod or tie | lighter | 2.77x heavier |
| Strong beam | lighter | 2.9x heavier |
| Strong panel or plate | lighter | 2.97x 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, DMLS AlSi10Mg Aluminum or Brass C360?
Brass C360 conducts heat better: 116 W/m·K against 110 W/m·K for DMLS AlSi10Mg Aluminum.
Which expands less with temperature?
DMLS AlSi10Mg Aluminum expands less: 20 µm/m·K against 20.5 µm/m·K for Brass C360.