# 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 10 ^{6} psi*

Elongation at Break

4.7 *%*

Fatigue Strength

97 *MPa* 14 *x 10 ^{3} psi*

Poisson's Ratio

0.33

Shear Modulus

27 *GPa* 3.8 *x 10 ^{6} psi*

Tensile Strength: Ultimate (UTS)

480 *MPa* 70 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

420 *MPa* 61 *x 10 ^{3} 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/cm ^{3}* 190

*lb/ft*

^{3}Embodied Carbon

8.1 *kg CO _{2}/kg material*

Embodied Energy

150 *MJ/kg* 65 *x 10 ^{3} BTU/lb*

Embodied Water

1150 *L/kg* 140 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

22 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

1250 *kJ/m ^{3}*

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 *mm ^{2}/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