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.
| Al | 83.5 to 93 | |
| Cu | 6.0 to 8.0 | |
| Si | 1.0 to 3.0 | |
| Zn | 0 to 2.5 | |
| Fe | 0 to 1.2 | |
| Mn | 0 to 0.6 | |
| Ni | 0 to 0.35 | |
| Ti | 0 to 0.25 | |
| Mg | 0 to 0.1 | |
| res. | 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