Material Data SheetAluminum.pdf
AlSi10Mg-0403 powder for additive manufacturing
Process specification
| Powder description | Aluminium alloy powder |
|---|---|
| Layer thickness | 25μm |
| Laser power | 400W |
| Additive manufacturing system | AM250 |
Material description
AlSi10Mg-0403 alloy comprises aluminium alloyed with silicon of mass fraction up to 10%, small quantities of magnesium and iron, along with other minor elements. The presence of silicon makes the alloy both harder and stronger than pure aluminium due to the formation of Mg₂Si precipitate.
Due to the natural formation of an oxide layer on the surface of the aluminium alloy, the material has high corrosion resistance which can be further improved by chemically anodising.
Material properties
• Low density (good for light weight components)
Applications
• High specific strength (strength to mass ratio)
• Automotive
• High thermal conductivity
• Aerospace and defence
• Very high electrical conductivity
• Electronics cooling
• Responds well to post process finishing
• Consumer goods
Generic data - wrought material
| Density | 2.68 g/cm3 |
|---|---|
| Thermal conductivity | 130 W/mK to 190 W/mK |
| Melting range | 570℃ to 590℃ |
| Coefficient of thermal expansion(see note 1) | 20μm/mK to 21μm/mK |
$$ 590,^{\circ}\mathrm{C} $$
Note 1 In the range of 20 °C to 100 °C.
Note 2 Stress relieved at 300 °C ±10 °C for 2 hr, air cooled.
Note 3 Tested at ambient temperature by Nadcap and UKAS accredited independent laboratory. Test ASTM E8. Machined before testing.
Note 4 Tested to ASTM E384-11, after polishing.
Note 5 Tested to JIS B 0601-2001 (ISO 97). As built after bead blasting.
Composition of powder
| Element | Mass(%) |
|---|---|
| Aluminium | Balance |
| Silicon | 9.00 to 11.00 |
| Magnesium | 0.25 to 0.45 |
| Iron | <0.25 |
| Nitrogen | <0.20 |
| Oxygen | <0.20 |
| Titanium | <0.15 |
| Zinc | <0.10 |
| Manganese | <0.10 |
| Nickel | <0.05 |
| Copper | <0.05 |
| Lead | <0.02 |
| Tin | <0.02 |
Mechanical properties of additively manufactured components
| As Built | Stress relieved(see note 2) | |
|---|---|---|
| Tensile strength (UTS)(See note 3) | ||
| Horizontal direction(XY) | 442MPa±6MPa | 334MPa±1MPa |
| Vertical direction(Z) | 417MPa±27MPa | 339MPa±6MPa |
| Yield strength(see note 3) | ||
| Horizontal direction(XY) | 264MPa±2MPa | 211MPa±2MPa |
| Vertical direction(Z) | 206MPa±6MPa | 174MPa±4MPa |
| Elongation at break(see note 3) | ||
| Horizontal direction(XY) | 9%±1% | 9%±2% |
| Vertical direction(Z) | 6%±2% | 4%±1% |
| Modulus of elasticity(see note 3) | ||
| Horizontal direction(XY) | 71GPa±5GPa | 71GPa±2GPa |
| Vertical direction(Z) | 68GPa±2GPa | 66GPa±3GPa |
| Hardness(Vickers)(see note 4) | ||
| Horizontal direction(XY) | 119HV0.5±5HV0.5 | 103HV0.5±5HV0.5 |
| Vertical direction(Z) | 123HV0.5±2HV0.5 | 98HV0.5±5HV0.5 |
| Surface roughness(Ra)(See note 5) | ||
| Horizontal direction(XY) | 5μm to 9μm | |
| Vertical direction(Z) | 7μm to 9μm |