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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.

Aluminum (Al) 82.6 to 90.3
Silicon (Si) 7.5 to 9.5
Copper (Cu) 2.0 to 3.5
Zinc (Zn) 0 to 1.2
Manganese (Mn) 0.15 to 0.65
Iron (Fe) 0 to 0.8
Magnesium (Mg) 0.050 to 0.55
Nickel (Ni) 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 0.25

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