Materials / Compare
Aluminum ADC12 vs. DMLS AlSi10Mg Aluminum
Compare Aluminum ADC12 vs. DMLS AlSi10Mg Aluminum 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 | 149MPasourceone test result, 0.2% proof stress, as cast, ASTM tensile bar (Daiki) | 270MPasourcetypical, as manufactured, horizontal |
| Ultimate tensile strength | 345MPasourceone test result, as cast, ASTM tensile bar (Daiki) | 450MPasourcetypical, as manufactured, horizontal |
| Elongation at break | 2.3%sourceone test result, as cast, ASTM tensile bar (Daiki) | 10.2%sourcetypical at break, as manufactured, horizontal |
| Young's modulus (stiffness) | 79.8GPasourcestandard value (S.S.Aluminum) | 72GPasourcesame material and process, different machine maker: Renishaw RenAM 500, 30 µm, as built, horizontal (XY) |
| Density | 2,680kg/m³sourcemeasured (Daiki) | 2,670kg/m³sourcetypical part density (ISO 3369), EOS M 290, AlSi10Mg_030_FlexM291 (30 µm) |
| Strength to weight | 55.6kN·m/kg | 101kN·m/kg1.82x higher |
| Stiffness to weight | 29.8MN·m/kg10% higher | 27MN·m/kg |
| Poisson's ratio | not sourced | 0.33sourcebase material: cast Al-Si-Mg alloy 359.0 (Al-9Si-0.6Mg, closest MIL-HDBK-5J alloy to AlSi10Mg / EN AC-43000) |
| Shear modulus | not sourced | 27.1GPa |
| Bulk modulus | not sourced | 70.6GPa |
| Speed of sound | 5,457m/s | 5,193m/s |
| Thermal | ||
| Thermal conductivity | 125W/m·Ksourcemeasured on specimens cut from a 50 x 100 x 5 mm flat die casting (Daiki) | 110W/m·Ksourcetypical, as manufactured, horizontal (ISO 22007-2) |
| Thermal expansion | 21µm/m·Ksourcemeasured, temperature range not stated (Daiki) | 20µm/m·Ksourcemean 25-100 °C, ASTM E228 |
| 100 mm part over a 50 °C swing | 105µm growth | 100µm growth5% less |
| Specific heat | 911J/kg·Ksourcemeasured (Daiki) | 963J/kg·Ksourcebase material: cast Al-Si-Mg alloy 359.0 (MIL-HDBK-5J), at 100 °C |
| Heats up and cools (diffusivity) | 51.2mm²/s20% faster | 42.8mm²/s |
| Thermal shock resistance | not sourced | 13,819W/m |
| Melting point | 515–582°Csourcesolidus-liquidus (Daiki) | not sourced |
| Values for | JIS ADC12 (Al-Si-Cu, about A383 / EN AC-46100) high-pressure die-casting alloy, as cast; physical properties from Daiki Aluminium Industry (ADC12 ingot producer) measured values; modulus from S.S.Aluminum (ADC12 ingot producer) standard values. | 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 |
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 Aluminum ADC12 stronger than DMLS AlSi10Mg Aluminum?
DMLS AlSi10Mg Aluminum is stronger: its yield strength is 270 MPa against 149 MPa for Aluminum ADC12 (1.81x).
Which is lighter, Aluminum ADC12 or DMLS AlSi10Mg Aluminum?
DMLS AlSi10Mg Aluminum is lighter: 2,670 kg/m³ against 2,680 kg/m³ for Aluminum ADC12.
Which is stiffer, Aluminum ADC12 or DMLS AlSi10Mg Aluminum?
Aluminum ADC12 is stiffer: Young's modulus 79.8 GPa against 72 GPa for DMLS AlSi10Mg Aluminum, so the same part in Aluminum ADC12 deflects less under the same load.
Which is lighter for the same job, Aluminum ADC12 or DMLS AlSi10Mg Aluminum?
For the same stiffness or strength: Aluminum ADC12 is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate; DMLS AlSi10Mg Aluminum is lighter for a strong rod or tie, strong beam, strong panel or plate.
| Part that must be | Aluminum ADC12 | DMLS AlSi10Mg Aluminum |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 10% heavier |
| Stiff beam (bending) | lighter | 5% heavier |
| Stiff panel or plate | lighter | 3% heavier |
| Strong rod or tie | 1.82x heavier | lighter |
| Strong beam | 49% heavier | lighter |
| Strong panel or plate | 35% 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, Aluminum ADC12 or DMLS AlSi10Mg Aluminum?
Aluminum ADC12 conducts heat better: 125 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 21 µm/m·K for Aluminum ADC12.