EOS Aluminum AlSi10Mg

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 (<= 0.55 wt-%) &nbsp &nbsp &nbsp Cu (<= 0.05 wt-%)
Mn (<= 0.45 wt-%) &nbsp &nbsp &nbsp Mg (0.2 - 0.45 wt-%)

Ni (<= 0.05 wt-%) &nbsp &nbsp &nbsp Zn (<= 0.10 wt-%)
Pb (<= 0.05 wt-%) &nbsp &nbsp &nbsp Sn (<=. 0.05 wt-%)
Ti (<= 0.15 wt-%)

• Physical Properties
• Other Properties
• 3D Printing Details
• Applications
• Design Guidelines
• Gallery

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