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515.0 (515.0-F) Cast Aluminum

515.0 aluminum is an aluminum alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. 515.0 is the Aluminum Association (AA) designation for this material. Additionally, the UNS number is A05150.

It has a moderately high melting temperature among the ANSI/AA cast aluminums in the database.

The graph bars on the material properties cards below compare 515.0 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

Elastic (Young's, Tensile) Modulus

70 GPa 10 x 106 psi

Elongation at Break

10 %

Fatigue Strength

130 MPa 19 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.8 x 106 psi

Shear Strength

190 MPa 27 x 103 psi

Tensile Strength: Ultimate (UTS)

280 MPa 41 x 103 psi

Thermal Properties

Latent Heat of Fusion

470 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

620 °C 1150 °F

Melting Onset (Solidus)

620 °C 1150 °F

Specific Heat Capacity

900 J/kg-K 0.22 BTU/lb-°F

Thermal Expansion

23 µm/m-K

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.6 g/cm3 160 lb/ft3

Embodied Carbon

8.4 kg CO2/kg material

Embodied Energy

150 MJ/kg 64 x 103 BTU/lb

Embodied Water

1120 L/kg 130 gal/lb

Common Calculations

Stiffness to Weight: Axial

15 points

Stiffness to Weight: Bending

52 points

Strength to Weight: Axial

30 points

Strength to Weight: Bending

36 points

Thermal Shock Resistance

13 points

Alloy Composition

Among cast aluminum alloys, the composition of 515.0 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) 93.6 to 96.6
Silicon (Si) 0.5 to 10
Magnesium (Mg) 2.5 to 4.0
Iron (Fe) 0 to 1.3
Manganese (Mn) 0.4 to 0.6
Copper (Cu) 0 to 0.2
Zinc (Zn) 0 to 0.1
Residuals 0 to 0.15

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

Followup Questions

Similar Alloys

Further Reading

Iron in Aluminium Alloys: Impurity and Alloying Element, N. A. Belov et al., 2002

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993