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511.0 (511.0-F) Cast Aluminum

511.0 aluminum is an aluminum alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. 511.0 is the Aluminum Association (AA) designation for this material. Additionally, the UNS number is A05110.

The graph bars on the material properties cards below compare 511.0 aluminum to: ANSI/AA 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

50

Elastic (Young's, Tensile) Modulus

68 GPa 9.8 x 106 psi

Elongation at Break

3.0 %

Fatigue Strength

55 MPa 8.0 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

25 GPa 3.7 x 106 psi

Shear Strength

120 MPa 17 x 103 psi

Tensile Strength: Ultimate (UTS)

150 MPa 21 x 103 psi

Tensile Strength: Yield (Proof)

83 MPa 12 x 103 psi

Thermal Properties

Latent Heat of Fusion

400 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

640 °C 1180 °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 82 BTU/h-ft-°F

Thermal Expansion

24 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

36 % IACS

Electrical Conductivity: Equal Weight (Specific)

120 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.7 g/cm3 170 lb/ft3

Embodied Carbon

8.8 kg CO2/kg material

Embodied Energy

150 MJ/kg 66 x 103 BTU/lb

Embodied Water

1180 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

3.7 MJ/m3

Resilience: Unit (Modulus of Resilience)

51 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

51 points

Strength to Weight: Axial

15 points

Strength to Weight: Bending

23 points

Thermal Diffusivity

59 mm2/s

Thermal Shock Resistance

6.5 points

Alloy Composition

Among cast aluminum alloys, the composition of 511.0 aluminum is notable for containing a comparatively high amount of magnesium (Mg). Magnesium promotes hardenability through both heat treatment and strain hardening mechanisms. It also increases susceptibility to intergranular corrosion.

Aluminum (Al) 93.3 to 96.2
Magnesium (Mg) 3.5 to 4.5
Silicon (Si) 0.3 to 0.7
Iron (Fe) 0 to 0.5
Manganese (Mn) 0 to 0.35
Titanium (Ti) 0 to 0.25
Zinc (Zn) 0 to 0.15
Copper (Cu) 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

Handbook of Aluminum vol. 2: Alloy Production and Materials Manufacturing, George Totten and D. Scott MacKenzie (editors), 2003

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