A201.0 (A201.0-T7, A12010) Cast Aluminum
A201.0 aluminum is an aluminum alloy formulated for casting. Cited properties are appropriate for the T7 temper. To achieve this temper, the metal is solution heat-treated and stabilized by artificial overaging. A201.0 is the Aluminum Association (AA) designation for this material. A12010 is the UNS number.
It has the highest tensile strength among the ANSI/AA cast aluminums in the database.
The graph bars on the material properties cards below compare A201.0 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
71 GPa 10 x 106 psi
Elongation at Break
4.7 %
Fatigue Strength
97 MPa 14 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
27 GPa 3.8 x 106 psi
Tensile Strength: Ultimate (UTS)
480 MPa 70 x 103 psi
Tensile Strength: Yield (Proof)
420 MPa 61 x 103 psi
Thermal Properties
Latent Heat of Fusion
390 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
650 °C 1200 °F
Melting Onset (Solidus)
570 °C 1060 °F
Specific Heat Capacity
880 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
120 W/m-K 70 BTU/h-ft-°F
Thermal Expansion
23 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
30 % IACS
Electrical Conductivity: Equal Weight (Specific)
90 % IACS
Otherwise Unclassified Properties
Base Metal Price
11 % relative
Density
3.0 g/cm3 190 lb/ft3
Embodied Carbon
8.1 kg CO2/kg material
Embodied Energy
150 MJ/kg 65 x 103 BTU/lb
Embodied Water
1150 L/kg 140 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
22 MJ/m3
Resilience: Unit (Modulus of Resilience)
1250 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
46 points
Strength to Weight: Axial
44 points
Strength to Weight: Bending
45 points
Thermal Diffusivity
46 mm2/s
Thermal Shock Resistance
21 points
Alloy Composition
Among cast aluminum alloys, the composition of A201.0 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 | 93.7 to 95.5 | |
| Cu | 4.0 to 5.0 | |
| Mn | 0.2 to 0.4 | |
| Ti | 0.15 to 0.35 | |
| Mg | 0.15 to 0.35 | |
| Fe | 0 to 0.1 | |
| Si | 0 to 0.050 | |
| res. | 0 to 0.1 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM B686: Standard Specification for Aluminum Alloy Castings, High-Strength
Handbook of Aluminum vol. 2: Alloy Production and Materials Manufacturing, George Totten and D. Scott MacKenzie (editors), 2003
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993