# 201.0-T6 Cast Aluminum

201.0-T6 aluminum is 201.0 aluminum in the T6 temper. To achieve this temper, the metal is solution heat-treated and artificially aged until it meets standard mechanical property requirements. The graph bars on the material properties cards below compare 201.0-T6 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

140

Elastic (Young's, Tensile) Modulus

71 *GPa* 10 *x 10 ^{6} psi*

Elongation at Break

7.2 *%*

Fatigue Strength

150 *MPa* 21 *x 10 ^{3} psi*

Impact Strength: V-Notched Charpy

10 *J* 7.4 *ft-lb*

Poisson's Ratio

0.33

Shear Modulus

27 *GPa* 3.9 *x 10 ^{6} psi*

Shear Strength

290 *MPa* 42 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

460 *MPa* 67 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

390 *MPa* 57 *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*

Solidification (Pattern Maker's) Shrinkage

1.3 *%*

Specific Heat Capacity

870 *J/kg-K* 0.21 *BTU/lb-°F*

Thermal Conductivity

120 *W/m-K* 70 *BTU/h-ft-°F*

Thermal Expansion

19 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

30 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

87 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

38 *% relative*

Calomel Potential

-670 *mV*

Density

3.1 *g/cm ^{3}* 190

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

160 *MJ/kg* 69 *x 10 ^{3} BTU/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

32 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

1100 *kJ/m ^{3}*

Stiffness to Weight: Axial

13 *points*

Stiffness to Weight: Bending

45 *points*

Strength to Weight: Axial

42 *points*

Strength to Weight: Bending

43 *points*

Thermal Diffusivity

45 *mm ^{2}/s*

Thermal Shock Resistance

24 *points*

## Alloy Composition

Al | 92.1 to 95.1 | |

Cu | 4.0 to 5.2 | |

Ag | 0.4 to 1.0 | |

Mg | 0.15 to 0.55 | |

Mn | 0.2 to 0.5 | |

Ti | 0.15 to 0.35 | |

Fe | 0 to 0.15 | |

Si | 0 to 0.1 | |

res. | 0 to 0.1 |

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

## Followup Questions

## Further Reading

ASTM B618: Standard Specification for Aluminum-Alloy Investment Castings

ASTM B26: Standard Specification for Aluminum-Alloy Sand Castings

Handbook of Aluminum Bonding Technology and Data, J. D. Minford, 1993

Advanced Materials in Automotive Engineering, Jason Rowe (editor), 2012

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