EN AC-43400 (43400-F, AISi10Mg(Fe)) Cast Aluminum
EN AC-43400 aluminum is an aluminum alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. 43400 is the EN numeric designation for this material. AISi10Mg(Fe) is the EN chemical designation.
The graph bars on the material properties cards below compare EN AC-43400 aluminum to: Euronorm (EN) cast aluminums (top), all aluminum alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Brinell Hardness
80
Elastic (Young's, Tensile) Modulus
72 GPa 10 x 106 psi
Elongation at Break
1.1 %
Fatigue Strength
110 MPa 16 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
27 GPa 3.9 x 106 psi
Tensile Strength: Ultimate (UTS)
270 MPa 39 x 103 psi
Tensile Strength: Yield (Proof)
160 MPa 23 x 103 psi
Thermal Properties
Latent Heat of Fusion
540 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
600 °C 1110 °F
Melting Onset (Solidus)
590 °C 1090 °F
Specific Heat Capacity
900 J/kg-K 0.22 BTU/lb-°F
Thermal Conductivity
140 W/m-K 79 BTU/h-ft-°F
Thermal Expansion
22 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
32 % IACS
Electrical Conductivity: Equal Weight (Specific)
110 % IACS
Otherwise Unclassified Properties
Base Metal Price
9.5 % relative
Density
2.6 g/cm3 160 lb/ft3
Embodied Carbon
7.8 kg CO2/kg material
Embodied Energy
150 MJ/kg 63 x 103 BTU/lb
Embodied Water
1070 L/kg 130 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
2.6 MJ/m3
Resilience: Unit (Modulus of Resilience)
180 kJ/m3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
54 points
Strength to Weight: Axial
29 points
Strength to Weight: Bending
36 points
Thermal Diffusivity
59 mm2/s
Thermal Shock Resistance
12 points
Alloy Composition
Among cast aluminum alloys, the composition of EN AC-43400 aluminum is notable for including lead (Pb) and containing a comparatively high amount of silicon (Si). Lead is used to improve machinability at the cost of toxicity and a decrease in weldability. Silicon is used to improve casting fluidity and lower melting temperature. It also has a strengthening effect.
| Al | 86 to 90.8 | |
| Si | 9.0 to 11 | |
| Fe | 0 to 1.0 | |
| Mg | 0.2 to 0.5 | |
| Mn | 0 to 0.55 | |
| Ti | 0 to 0.2 | |
| Ni | 0 to 0.15 | |
| Pb | 0 to 0.15 | |
| Zn | 0 to 0.15 | |
| Cu | 0 to 0.1 | |
| Sn | 0 to 0.050 | |
| res. | 0 to 0.15 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
EN 1706: Aluminium and aluminium alloys. Castings. Chemical composition and mechanical properties
Handbook of Aluminum Bonding Technology and Data, J. D. Minford, 1993