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213.0 (213.0-F, CS74A) Cast Aluminum

213.0 aluminum is an aluminum alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. 213.0 is the Aluminum Association (AA) designation for this material. Additionally, the SAE designation is 33. And the UNS number is A02130. Older literature may refer to this material as ASTM CS74A, but this is now discouraged.

The graph bars on the material properties cards below compare 213.0 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

85

Elastic (Young's, Tensile) Modulus

73 GPa 11 x 106 psi

Elongation at Break

1.5 %

Fatigue Strength

93 MPa 14 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

28 GPa 4.0 x 106 psi

Tensile Strength: Ultimate (UTS)

190 MPa 27 x 103 psi

Tensile Strength: Yield (Proof)

130 MPa 19 x 103 psi

Thermal Properties

Latent Heat of Fusion

410 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

670 °C 1230 °F

Melting Onset (Solidus)

480 °C 900 °F

Specific Heat Capacity

850 J/kg-K 0.2 BTU/lb-°F

Thermal Conductivity

130 W/m-K 77 BTU/h-ft-°F

Thermal Expansion

23 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

34 % IACS

Electrical Conductivity: Equal Weight (Specific)

94 % IACS

Otherwise Unclassified Properties

Base Metal Price

11 % relative

Density

3.2 g/cm3 200 lb/ft3

Embodied Carbon

7.7 kg CO2/kg material

Embodied Energy

140 MJ/kg 61 x 103 BTU/lb

Embodied Water

1090 L/kg 130 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

2.5 MJ/m3

Resilience: Unit (Modulus of Resilience)

120 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

44 points

Strength to Weight: Axial

16 points

Strength to Weight: Bending

23 points

Thermal Diffusivity

49 mm2/s

Thermal Shock Resistance

8.0 points

Alloy Composition

Among cast aluminum alloys, the composition of 213.0 aluminum is notable for containing a comparatively high amount of copper (Cu). Copper is used to improve strength. This comes at the cost of a decrease in corrosion resistance and weldability.

Aluminum (Al) 83.5 to 93
Copper (Cu) 6.0 to 8.0
Silicon (Si) 1.0 to 3.0
Zinc (Zn) 0 to 2.5
Iron (Fe) 0 to 1.2
Manganese (Mn) 0 to 0.6
Nickel (Ni) 0 to 0.35
Titanium (Ti) 0 to 0.25
Magnesium (Mg) 0 to 0.1
Residuals 0 to 0.5

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

Followup Questions

Similar Alloys

Further Reading

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

ASM Specialty Handbook: Aluminum and Aluminum Alloys, J. R. Davis (editor), 1993