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EN AC-43500-T7 Cast Aluminum

EN AC-43500-T7 is EN AC-43500 aluminum in the T7 temper. To achieve this temper, the metal is solution heat-treated and stabilized by artificial overaging. It has the lowest strength and highest ductility compared to the other variants of EN AC-43500 aluminum.

The graph bars on the material properties cards below compare EN AC-43500-T7 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


Elastic (Young's, Tensile) Modulus

72 GPa 10 x 106 psi

Elongation at Break

13 %

Fatigue Strength

62 MPa 9.0 x 103 psi

Poisson's Ratio


Shear Modulus

27 GPa 3.9 x 106 psi

Tensile Strength: Ultimate (UTS)

220 MPa 32 x 103 psi

Tensile Strength: Yield (Proof)

140 MPa 20 x 103 psi

Thermal Properties

Latent Heat of Fusion

550 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

600 °C 1100 °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 80 BTU/h-ft-°F

Thermal Expansion

22 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

38 % IACS

Electrical Conductivity: Equal Weight (Specific)

130 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative


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)

26 MJ/m3

Resilience: Unit (Modulus of Resilience)

130 kJ/m3

Stiffness to Weight: Axial

16 points

Stiffness to Weight: Bending

54 points

Strength to Weight: Axial

24 points

Strength to Weight: Bending

32 points

Thermal Diffusivity

60 mm2/s

Thermal Shock Resistance

10 points

Alloy Composition

Aluminum (Al) 86.4 to 90.5
Silicon (Si) 9.0 to 11.5
Manganese (Mn) 0.4 to 0.8
Magnesium (Mg) 0.1 to 0.6
Iron (Fe) 0 to 0.25
Titanium (Ti) 0 to 0.2
Zinc (Zn) 0 to 0.070
Copper (Cu) 0 to 0.050
Residuals 0 to 0.15

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Further Reading

EN 1706: Aluminium and aluminium alloys. Castings. Chemical composition and mechanical properties

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