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EN AC-46600 (46600-F, AISi7Cu2) Cast Aluminum

EN AC-46600 aluminum is an aluminum alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. 46600 is the EN numeric designation for this material. AISi7Cu2 is the EN chemical designation.

It has a moderately low tensile strength among Euronorm (EN) cast aluminums. In addition, it has a moderately high density and a moderately low electrical conductivity.

The graph bars on the material properties cards below compare EN AC-46600 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

77

Elastic (Young's, Tensile) Modulus

72 GPa 10 x 106 psi

Elongation at Break

1.1 %

Fatigue Strength

75 MPa 11 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

27 GPa 3.9 x 106 psi

Tensile Strength: Ultimate (UTS)

180 MPa 26 x 103 psi

Tensile Strength: Yield (Proof)

110 MPa 16 x 103 psi

Thermal Properties

Latent Heat of Fusion

490 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

620 °C 1150 °F

Melting Onset (Solidus)

560 °C 1040 °F

Specific Heat Capacity

890 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

130 W/m-K 73 BTU/h-ft-°F

Thermal Expansion

22 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

29 % IACS

Electrical Conductivity: Equal Weight (Specific)

94 % IACS

Otherwise Unclassified Properties

Base Metal Price

10 % relative

Density

2.8 g/cm3 170 lb/ft3

Embodied Carbon

7.8 kg CO2/kg material

Embodied Energy

150 MJ/kg 63 x 103 BTU/lb

Embodied Water

1080 L/kg 130 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

1.7 MJ/m3

Resilience: Unit (Modulus of Resilience)

81 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

50 points

Strength to Weight: Axial

18 points

Strength to Weight: Bending

25 points

Thermal Diffusivity

51 mm2/s

Thermal Shock Resistance

8.1 points

Alloy Composition

Among cast aluminum alloys, the composition of EN AC-46600 aluminum is notable for including lead (Pb) and tin (Sn). Lead is used to improve machinability at the cost of toxicity and a decrease in weldability. Tin is used to increase bearing properties at the cost of a decrease in corrosion resistance.

Aluminum (Al) 85.6 to 92.4
Silicon (Si) 6.0 to 8.0
Copper (Cu) 1.5 to 2.5
Zinc (Zn) 0 to 1.0
Manganese (Mn) 0.15 to 0.65
Iron (Fe) 0 to 0.8
Nickel (Ni) 0 to 0.35
Magnesium (Mg) 0 to 0.35
Titanium (Ti) 0 to 0.25
Lead (Pb) 0 to 0.25
Tin (Sn) 0 to 0.15
Residuals 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

Aluminum: Properties and Physical Metallurgy, John E. Hatch (editor), 1984