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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.

Aluminum (Al) 93.7 to 95.5
Copper (Cu) 4.0 to 5.0
Manganese (Mn) 0.2 to 0.4
Titanium (Ti) 0.15 to 0.35
Magnesium (Mg) 0.15 to 0.35
Iron (Fe) 0 to 0.1
Silicon (Si) 0 to 0.050
Residuals 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