# 356.0-T6 Cast Aluminum

356.0-T6 aluminum is 356.0 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. It has the highest strength compared to the other variants of 356.0 aluminum.

The graph bars on the material properties cards below compare 356.0-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

75

Elastic (Young's, Tensile) Modulus

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

Elongation at Break

3.8 *%*

Fatigue Strength

75 *MPa* 11 *x 10 ^{3} psi*

Poisson's Ratio

0.33

Shear Modulus

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

Shear Strength

190 *MPa* 28 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

240 *MPa* 35 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

170 *MPa* 24 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

500 *J/g*

Maximum Temperature: Mechanical

170 *°C* 340 *°F*

Melting Completion (Liquidus)

620 *°C* 1140 *°F*

Melting Onset (Solidus)

570 *°C* 1050 *°F*

Solidification (Pattern Maker's) Shrinkage

1.3 *%*

Specific Heat Capacity

900 *J/kg-K* 0.22 *BTU/lb-°F*

Thermal Conductivity

150 *W/m-K* 88 *BTU/h-ft-°F*

Thermal Expansion

21 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

40 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

140 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

9.5 *% relative*

Calomel Potential

-730 *mV*

Density

2.6 *g/cm ^{3}* 160

*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

1110 *L/kg* 130 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

8.2 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

190 *kJ/m ^{3}*

Stiffness to Weight: Axial

15 *points*

Stiffness to Weight: Bending

53 *points*

Strength to Weight: Axial

26 *points*

Strength to Weight: Bending

33 *points*

Thermal Diffusivity

64 *m ^{2}/s*

Thermal Shock Resistance

11 *points*

## Alloy Composition

Al | 90.1 to 93.3 | |

Si | 6.5 to 7.5 | |

Mg | 0.2 to 0.45 | |

Fe | 0 to 0.6 | |

Mn | 0 to 0.35 | |

Zn | 0 to 0.35 | |

Ti | 0 to 0.25 | |

Cu | 0 to 0.25 | |

res. | 0 to 0.15 |

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 B108: Standard Specification for Aluminum-Alloy Permanent Mold Castings

ASTM B26: Standard Specification for Aluminum-Alloy Sand Castings

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

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

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015