Materials / Compare
DMLS AlSi10Mg Aluminum vs. Magnesium AZ31B-H24
Compare DMLS AlSi10Mg Aluminum vs. Magnesium AZ31B-H24 strength, stiffness, weight and thermal properties.
| Mechanical | DMLS AlSi10Mg Aluminum | Magnesium AZ31B-H24 |
|---|---|---|
| Yield strength | 270MPa123% stronger | 220MPa2 |
| Ultimate tensile strength | 450MPa11.55x stronger | 290MPa2 |
| Elongation at break | 10.2%1 | 13%227% more ductile |
| Young's modulus (stiffness) | 72GPa31.61x stiffer | 44.8GPa4 |
| Density | 2,670kg/m³5 | 1,769kg/m³41.51x lighter |
| Strength to weight | 101kN·m/kg | 124kN·m/kg23% higher |
| Stiffness to weight | 27MN·m/kg6% higher | 25.3MN·m/kg |
| Poisson's ratio | base material0.334 | 0.354 |
| Shear modulus | 27.1GPa1.63x stiffer in shear | 16.6GPa |
| Bulk modulus | 70.6GPa42% higher | 49.8GPa |
| Speed of sound | 5,193m/s3% faster | 5,032m/s |
| Thermal | DMLS AlSi10Mg Aluminum | Magnesium AZ31B-H24 |
|---|---|---|
| Thermal conductivity | 110W/m·K143% more heat through a fin | 76.9W/m·K2 |
| Thermal expansion | mean 25-100 °C20µm/m·K134% less | 26.8µm/m·K2 |
| 100 mm part over a 50 °C swing | 100µm growth34% less | 134µm growth |
| Specific heat | base material963J/kg·K4 | 1,040J/kg·K2 |
| Heats up and cools (diffusivity) | 42.8mm²/s2% faster | 41.8mm²/s |
| Thermal shock resistance | 13,819W/m1.51x more resistant | 9,159W/m |
| Max service temperature | not sourced | 149°C4 |
| Try it on a partA bracket to run stress or thermal on, free in your browser | Open in LessCAD | Open in LessCAD |
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Sources5 documents: EOS GmbH, Magnesium Elektron, Renishaw, U.S. Department of Defense
- DMLS AlSi10Mg Aluminum
- 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
- Magnesium AZ31B-H24
- AZ31B-H24 sheet 0.016-0.062 in., MIL-HDBK-5J Table 4.2.1.0(b) (AMS 4377); strengths are S-basis MINIMUMS
- 1EOS Aluminium AlSi10Mg Material Data SheetEOS GmbHarchived copyDMLS AlSi10Mg Aluminum · Yield strength: typical, as manufactured, horizontalDMLS AlSi10Mg Aluminum · Ultimate tensile strength: typical, as manufactured, horizontalDMLS AlSi10Mg Aluminum · Elongation at break: typical at break, as manufactured, horizontalDMLS AlSi10Mg Aluminum · Thermal conductivity: typical, as manufactured, horizontal (ISO 22007-2)DMLS AlSi10Mg Aluminum · Thermal expansion: mean 25-100 °C, ASTM E228
- 2Elektron AZ31B Sheet, Plate & Coil (Datasheet 482)Magnesium Elektronarchived copyMagnesium AZ31B-H24 · Yield strength: typical, H24, 0.5-6 mm, 0.2 % proof stressMagnesium AZ31B-H24 · Ultimate tensile strength: typical, H24, 0.5-6 mmMagnesium AZ31B-H24 · Elongation at break: typical, H24, 0.5-6 mm, gauge 5.65√AMagnesium AZ31B-H24 · Thermal conductivity: typical (temper/temperature not stated)Magnesium AZ31B-H24 · Thermal expansion: typical (temperature range not stated)Magnesium AZ31B-H24 · Specific heat: typical
- 3RenAM 500 Series Aluminium AlSi10Mg Material Data SheetRenishawDMLS AlSi10Mg Aluminum · Young's modulus (stiffness): same material and process, different machine maker: Renishaw RenAM 500, 30 µm, as built, horizontal (XY)
- 4MIL-HDBK-5J, Metallic Materials and Elements for Aerospace Vehicle Structures (2003)U.S. Department of DefenseMagnesium AZ31B-H24 · Young's modulus (stiffness): typical (handbook physical constant)Magnesium AZ31B-H24 · Density: nominalDMLS AlSi10Mg Aluminum · Poisson's ratio: base material: cast Al-Si-Mg alloy 359.0 (Al-9Si-0.6Mg, closest MIL-HDBK-5J alloy to AlSi10Mg / EN AC-43000)Magnesium AZ31B-H24 · Poisson's ratio: typical (handbook physical constant)DMLS AlSi10Mg Aluminum · Specific heat: base material: cast Al-Si-Mg alloy 359.0 (MIL-HDBK-5J), at 100 °CMagnesium AZ31B-H24 · Max service temperature: stated application limit
- 5EOS Aluminium AlSi10Mg Material Data Sheet, FlexLine, M 290 (2018)EOS GmbHarchived copyDMLS AlSi10Mg Aluminum · Density: typical part density (ISO 3369), EOS M 290, AlSi10Mg_030_FlexM291 (30 µm)
Each number points to the document that states it, with the exact basis. Values without a number are computed from the sourced ones. "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
Mechanical
Is DMLS AlSi10Mg Aluminum stronger than Magnesium AZ31B-H24?
DMLS AlSi10Mg Aluminum is stronger: its yield strength is 270 MPa against 220 MPa for Magnesium AZ31B-H24 (23%).
Which is lighter, DMLS AlSi10Mg Aluminum or Magnesium AZ31B-H24?
Magnesium AZ31B-H24 is lighter: 1,769 kg/m³ against 2,670 kg/m³ for DMLS AlSi10Mg Aluminum.
Which is stiffer, DMLS AlSi10Mg Aluminum or Magnesium AZ31B-H24?
DMLS AlSi10Mg Aluminum is stiffer: Young's modulus 72 GPa against 44.8 GPa for Magnesium AZ31B-H24, so the same part in DMLS AlSi10Mg Aluminum deflects less under the same load.
Which is lighter for the same job, DMLS AlSi10Mg Aluminum or Magnesium AZ31B-H24?
For the same stiffness or strength: DMLS AlSi10Mg Aluminum is lighter for a stiff rod or tie (tension); Magnesium AZ31B-H24 is lighter for a stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam, strong panel or plate.
| Part that must be | DMLS AlSi10Mg Aluminum | Magnesium AZ31B-H24 |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 6% heavier |
| Stiff beam (bending) | 19% heavier | lighter |
| Stiff panel or plate | 29% heavier | lighter |
| Strong rod or tie | 23% heavier | lighter |
| Strong beam | 32% heavier | lighter |
| Strong panel or plate | 36% 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 is more ductile, DMLS AlSi10Mg Aluminum or Magnesium AZ31B-H24?
Magnesium AZ31B-H24 stretches further before it breaks: 13% elongation at break against 10.2% for DMLS AlSi10Mg Aluminum.
Thermal
Which conducts heat better, DMLS AlSi10Mg Aluminum or Magnesium AZ31B-H24?
DMLS AlSi10Mg Aluminum conducts heat better: 110 W/m·K against 76.9 W/m·K for Magnesium AZ31B-H24.
Which expands less with temperature?
DMLS AlSi10Mg Aluminum expands less: 20 µm/m·K against 26.8 µm/m·K for Magnesium AZ31B-H24.
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