EN AC-46200 (46200-F, AISi8Cu3) Cast Aluminum
EN AC-46200 aluminum is an aluminum alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. 46200 is the EN numeric designation for this material. AISi8Cu3 is the EN chemical designation.
It has a moderately low thermal conductivity among Euronorm (EN) cast aluminums. In addition, it has a moderately low melting temperature and a moderately high density.
The graph bars on the material properties cards below compare EN AC-46200 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
82
Elastic (Young's, Tensile) Modulus
73 GPa 11 x 106 psi
Elongation at Break
1.1 %
Fatigue Strength
87 MPa 13 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
27 GPa 4.0 x 106 psi
Tensile Strength: Ultimate (UTS)
210 MPa 30 x 103 psi
Tensile Strength: Yield (Proof)
130 MPa 18 x 103 psi
Thermal Properties
Latent Heat of Fusion
510 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
620 °C 1140 °F
Melting Onset (Solidus)
540 °C 1000 °F
Specific Heat Capacity
880 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
110 W/m-K 63 BTU/h-ft-°F
Thermal Expansion
22 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
28 % IACS
Electrical Conductivity: Equal Weight (Specific)
88 % IACS
Otherwise Unclassified Properties
Base Metal Price
10 % relative
Density
2.8 g/cm3 180 lb/ft3
Embodied Carbon
7.7 kg CO2/kg material
Embodied Energy
140 MJ/kg 62 x 103 BTU/lb
Embodied Water
1060 L/kg 130 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
2.0 MJ/m3
Resilience: Unit (Modulus of Resilience)
110 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
50 points
Strength to Weight: Axial
21 points
Strength to Weight: Bending
28 points
Thermal Diffusivity
44 mm2/s
Thermal Shock Resistance
9.5 points
Alloy Composition
Among cast aluminum alloys, the composition of EN AC-46200 aluminum is notable for including lead (Pb) and containing a comparatively high amount of copper (Cu). Lead is used to improve machinability at the cost of toxicity and a decrease in weldability. Copper is used to improve strength. This comes at the cost of a decrease in corrosion resistance and weldability.
| Al | 82.6 to 90.3 | |
| Si | 7.5 to 9.5 | |
| Cu | 2.0 to 3.5 | |
| Zn | 0 to 1.2 | |
| Mn | 0.15 to 0.65 | |
| Fe | 0 to 0.8 | |
| Mg | 0.050 to 0.55 | |
| Ni | 0 to 0.35 | |
| Ti | 0 to 0.25 | |
| Pb | 0 to 0.25 | |
| Sn | 0 to 0.15 | |
| res. | 0 to 0.25 |
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
Aluminum: Properties and Physical Metallurgy, John E. Hatch (editor), 1984