Aluminium

Aluminium (AlSi10Mg)


AlSi10Mg products provide good strength and hardness, so are usually used to make components able to withstand high loads and in applications that require good thermal and lightness characteristics.


This is an alloy with good melting properties, generally used in the production of elements with thin structures and complex geometry.

Technical Data of the material and physical and chemical properties

Technical Data Test Method  
Typical achievable part accuracy - - - - - - - ± 100 μm
Smallest wall thickness [1] - - - - - - - approx. 0.3 – 0.4 mm
Surface roughness, as built, cleaned - - - - - - - Ra 6 - 10 μm, Rz 30 - 40 μm
Surface roughness, after micro shot-peening - - - - - - - Ra 7 - 10 μm, Rz 50 - 60 μm
Physical and Chemical properties of parts Test Method  
Material composition - - - - - - - Al (balance)
Si (9.0 - 11.0 wt-%)≤
Fe (≤ 0.55 wt-%)
Cu (≤ 0.05 wt-%)
Mn (≤ 0.45 wt-%)
Mg (0.2 - 0.45 wt-%)
Ni (≤ 0.05 wt-%)
Zn (≤ 0.10 wt-%)
Pb (≤ 0.05 wt-%)
Sn (≤ 0.05 wt-%)
Ti (≤ 0.15 wt-%)
Relative density - - - - - - - approx. 99.85 %
Density - - - - - - - 2.67 g/cm3
Mechanical Properties of parts Test Method As Built Heat Treated [5]
Tensile strength [2] in horizontal direction (XY) ISO 6892-1:2009(B)
Annex D
460 ± 20 MPa
66.7 ± 2.9 ksi
345 ± 10 MPa
50.0 ± 1.5 ksi
Tensile strength [2] in vertical direction (Z) ISO 6892-1:2009(B)
Annex D
460 ± 20 MPa
66.7 ± 2.9 ksi
350 ± 10 MPa
50.8 ± 1.5 ksi
Yield strength (Rp 0.2 %) [2] in horizontal direction (XY) ISO 6892-1:2009(B)
Annex D
270 ± 10 MPa
39.2 ± 1.5 ksi
230 ± 15 MPa
33.4 ± 2.2 ksi
Yield strength (Rp 0.2 %) [2] in vertical direction (Z) ISO 6892-1:2009(B)
Annex D
240 ± 10 MPa
34.8 ± 1.5 ksi
230 ± 15 MPa
33.4 ± 2.2 ksi
Modulus of elasticity in horizontal direction (XY) - - - - - - - 75 ± 10 GPa
10.9 ± 0.7 Msi
70 ± 10 GPa
10.2 ± 0.7 Msi
Modulus of elasticity in vertical direction (Z) - - - - - - - 70 ± 10 GPa
10.2 ± 0.7 Msi
60 ± 10 GPa
8.7 ± 0.7 Msi
Elongation at break [2] in horizontal direction (XY) ISO 6892-1:2009(B)
Annex D
(9 ± 2) % 12 ± 2 %
Elongation at break [2] in vertical direction (Z) ISO 6892-1:2009(B)
Annex D
(6 ± 2) % 11 ± 2 %
Hardness [3] DIN EN ISO 6506-1 approx. 119 ± 5 HBW - - - - - - -
Fatigue strength [4] in vertical direction (Z) - - - - - - - appr. 97 ± 7 MPa
appr. 14.1 ± 1.0 ksi
- - - - - - -
Thermal properties of parts Test Method As Built Heat Treated [5]
Thermal conductivity at 20 °C in horizontal direction (XY) - - - - - - - approx. 103 ± 5 W/m °C approx. 173 ± 10 W/m °C
Thermal conductivity at 20 °C in vertical direction (Z) - - - - - - - approx. 119 ± 5 W/m °C approx. 173 ± 10 W/m °C
Specific heat capacity in horizontal direction (XY) - - - - - - - approx. 920 ± 50 J/kg °C approx. 890 ± 50 J/kg °C
Specific heat capacity in vertical direction (Z)) - - - - - - - approx. 910 ± 50 J/kg °C approx. 890 ± 50 J/kg °C

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