# 206.0-T6 Cast Aluminum

206.0-T6 aluminum is 206.0 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 206.0-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

110

Elastic (Young's, Tensile) Modulus

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

Elongation at Break

8.9 *%*

Fatigue Strength

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

Impact Strength: V-Notched Charpy

9.5 *J* 7.0 *ft-lb*

Poisson's Ratio

0.33

Shear Modulus

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

Shear Strength

260 *MPa* 37 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

380 *MPa* 56 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

240 *MPa* 35 *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

19 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

33 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

99 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

11 *% relative*

Calomel Potential

-680 *mV*

Density

3.0 *g/cm ^{3}* 190

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

150 *MJ/kg* 64 *x 10 ^{3} BTU/lb*

Embodied Water

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

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

30 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

420 *kJ/m ^{3}*

Stiffness to Weight: Axial

13 *points*

Stiffness to Weight: Bending

46 *points*

Strength to Weight: Axial

35 *points*

Strength to Weight: Bending

39 *points*

Thermal Diffusivity

46 *mm ^{2}/s*

Thermal Shock Resistance

20 *points*

## Alloy Composition

Al | 93.3 to 95.3 | |

Cu | 4.2 to 5.0 | |

Mn | 0.2 to 0.5 | |

Mg | 0.15 to 0.35 | |

Ti | 0.15 to 0.3 | |

Fe | 0 to 0.15 | |

Si | 0 to 0.1 | |

Zn | 0 to 0.1 | |

Ni | 0 to 0.050 | |

Sn | 0 to 0.050 | |

res. | 0 to 0.15 |

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

## Followup Questions

## Further Reading

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

Aluminum: Properties and Physical Metallurgy, John E. Hatch (editor), 1984

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993