# EN AC-45300-T6 Cast Aluminum

EN AC-45300-T6 is EN AC-45300 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 EN AC-45300-T6 to: Euronorm (EN) 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

120

Elastic (Young's, Tensile) Modulus

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

Elongation at Break

1.0 *%*

Fatigue Strength

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

Poisson's Ratio

0.33

Shear Modulus

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

Tensile Strength: Ultimate (UTS)

290 *MPa* 41 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

230 *MPa* 34 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

470 *J/g*

Maximum Temperature: Mechanical

170 *°C* 340 *°F*

Melting Completion (Liquidus)

630 *°C* 1160 *°F*

Melting Onset (Solidus)

590 *°C* 1090 *°F*

Specific Heat Capacity

890 *J/kg-K* 0.21 *BTU/lb-°F*

Thermal Conductivity

150 *W/m-K* 85 *BTU/h-ft-°F*

Thermal Expansion

22 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

36 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

120 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

9.5 *% relative*

Density

2.7 *g/cm ^{3}* 170

*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

1120 *L/kg* 130 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

2.7 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

390 *kJ/m ^{3}*

Stiffness to Weight: Axial

14 *points*

Stiffness to Weight: Bending

50 *points*

Strength to Weight: Axial

29 *points*

Strength to Weight: Bending

35 *points*

Thermal Diffusivity

60 *mm ^{2}/s*

Thermal Shock Resistance

13 *points*

## Alloy Composition

Al | 90.2 to 94.2 | |

Si | 4.5 to 5.5 | |

Cu | 1.0 to 1.5 | |

Mg | 0.35 to 0.65 | |

Fe | 0 to 0.65 | |

Mn | 0 to 0.55 | |

Ni | 0 to 0.25 | |

Ti | 0 to 0.25 | |

Pb | 0 to 0.15 | |

Zn | 0 to 0.15 | |

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

EN 1706: Aluminium and aluminium alloys. Castings. Chemical composition and mechanical properties

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