EN AC-46300 (46300-F, AISi7Cu3Mg) Cast Aluminum
EN AC-46300 aluminum is an aluminum alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. 46300 is the EN numeric designation for this material. AISi7Cu3Mg is the EN chemical designation.
It has a moderately high density among Euronorm (EN) cast aluminums. In addition, it has a moderately low electrical conductivity and a fairly low melting temperature.
The graph bars on the material properties cards below compare EN AC-46300 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
91
Elastic (Young's, Tensile) Modulus
73 GPa 11 x 106 psi
Elongation at Break
1.1 %
Fatigue Strength
79 MPa 11 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
27 GPa 4.0 x 106 psi
Tensile Strength: Ultimate (UTS)
200 MPa 29 x 103 psi
Tensile Strength: Yield (Proof)
110 MPa 17 x 103 psi
Thermal Properties
Latent Heat of Fusion
490 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
630 °C 1160 °F
Melting Onset (Solidus)
530 °C 990 °F
Specific Heat Capacity
880 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
120 W/m-K 68 BTU/h-ft-°F
Thermal Expansion
22 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
27 % IACS
Electrical Conductivity: Equal Weight (Specific)
84 % IACS
Otherwise Unclassified Properties
Base Metal Price
10 % relative
Density
2.9 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)
1.9 MJ/m3
Resilience: Unit (Modulus of Resilience)
89 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
49 points
Strength to Weight: Axial
20 points
Strength to Weight: Bending
27 points
Thermal Diffusivity
47 mm2/s
Thermal Shock Resistance
9.1 points
Alloy Composition
Among cast aluminum alloys, the composition of EN AC-46300 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 | 84 to 90 | |
| Si | 6.5 to 8.0 | |
| Cu | 3.0 to 4.0 | |
| Mg | 0.3 to 0.6 | |
| Mn | 0.2 to 0.65 | |
| Fe | 0 to 0.8 | |
| Zn | 0 to 0.65 | |
| Ni | 0 to 0.3 | |
| Ti | 0 to 0.25 | |
| Pb | 0 to 0.15 | |
| Sn | 0 to 0.1 | |
| res. | 0 to 0.55 |
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