AlSi10Mg is a typical casting alloy with good casting properties and is typically used for cast parts with thin walls and complex geometry.


Material Composition
Al (balance) &nbsp &nbsp &nbsp Si (9.0 – 11.0 wt-%)
Fe (
Mn (
Ni (
Pb (
Ti (

Physical Properties

It offers good strength, hardness and dynamic properties and is therefore also used for parts subject to high loads.

Parameter As Built (typical) After Age-Hardening
Tensile Strength XY: 460 ± 20 MPa; Z: 460 ± 20 MPa XY: 345 ± 10 MPA ;Z: 350 ± 10 MPa
Yield Strength XY: 270 ± 10 MPa; Z: 240 ± 10 MPa XY: 230 ± 15 MPa; Z: 230 ± 15 MPa
Elongation at Break XY: (9 ± 2) % ; Z: (6 ± 2) % XY: (12 ± 2) % ; Z: (11 ± 2) %
Modulus of elasticity XY: 75 ± 10 GPa; Z: 70 ± 10 GPa XY: 70 ± 10 GPa; Z: 60 ± 10 GPa
Hardness 119 ± 5 HBW
Fatigue Strength Approx. 97 ± 7 MPa
Parameter As Built (typical) After Age-Hardening
Thermal conductivity X: 103 ± 5 W/m°C ; Z: 119 ± 5 W/m°C X: 173 ± 10 W/m°C ; Z: 173 ± 10 W/m°C
Specific heat capacity X: 920 ± 50 J/kg°C; Z: 910 ± 50 J/kg°C X: 890 ± 50 J/kg°C; Z: 890 ± 50 J/kg°C
Density 2.67 g/cm³
Relative Density approx. 99.85 %

3D Printing Details

Technology DMLS
Possible Post Processing machined, spark-eroded, welded, micro shot-peened, polished and coated
Accuracy 100 Microns
Min Wall Thickness 0.3-0.4 mm
Min Layer Resolution 90 Microns
Volume Rate 7.4 mm³/s
Surface Roughness Ra: 6-10 Microns ; Rz: 30-60 Microns

Applications

For applications which require a combination of good thermal properties and low weight

  • Functional prototypes
  • Series-production parts
  • Motorsports
  • Automotive/Series Production Vehicles
  • Aerospace Interior

    • Design Guidelines

    Min Wall Thickness 0.3-0.4 mm
    Min Layer Resolution 20 Microns
    Min Detail Size 0.8 mm
    Min Hole Diameter 0.8 mm
    Min Text Size 2.5 mm
    Max Part Dimension 300 mm

    Design Guidelines