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EN AC-46400-T6 Cast Aluminum

EN AC-46400-T6 is EN AC-46400 aluminum in the T6 temper. To achieve this temper, the metal is solution heat-treated and artificially aged until it meets standard mechanical property requirements. The graph bars on the material properties cards below compare EN AC-46400-T6 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

120

Elastic (Young's, Tensile) Modulus

72 GPa 10 x 106 psi

Elongation at Break

1.7 %

Fatigue Strength

85 MPa 12 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

27 GPa 3.9 x 106 psi

Tensile Strength: Ultimate (UTS)

310 MPa 45 x 103 psi

Tensile Strength: Yield (Proof)

270 MPa 39 x 103 psi

Thermal Properties

Latent Heat of Fusion

520 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

610 °C 1120 °F

Melting Onset (Solidus)

570 °C 1060 °F

Specific Heat Capacity

890 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

130 W/m-K 75 BTU/h-ft-°F

Thermal Expansion

22 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

33 % IACS

Electrical Conductivity: Equal Weight (Specific)

110 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.7 g/cm3 170 lb/ft3

Embodied Carbon

7.8 kg CO2/kg material

Embodied Energy

150 MJ/kg 62 x 103 BTU/lb

Embodied Water

1070 L/kg 130 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

4.9 MJ/m3

Resilience: Unit (Modulus of Resilience)

500 kJ/m3

Stiffness to Weight: Axial

15 points

Stiffness to Weight: Bending

52 points

Strength to Weight: Axial

32 points

Strength to Weight: Bending

38 points

Thermal Diffusivity

55 mm2/s

Thermal Shock Resistance

14 points

Alloy Composition

Aluminum (Al)Al 85.4 to 90.5
Silicon (Si)Si 8.3 to 9.7
Copper (Cu)Cu 0.8 to 1.3
Magnesium (Mg)Mg 0.25 to 0.65
Iron (Fe)Fe 0 to 0.8
Zinc (Zn)Zn 0 to 0.8
Manganese (Mn)Mn 0.15 to 0.55
Nickel (Ni)Ni 0 to 0.2
Titanium (Ti)Ti 0 to 0.2
Tin (Sn)Sn 0 to 0.1
Lead (Pb)Pb 0 to 0.1
Residualsres. 0 to 0.25

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

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015