# 5457-H25 Aluminum

5457-H25 aluminum is 5457 aluminum in the H25 temper. To achieve this temper, the metal is strain hardened, and then partially annealed, to a strength that is roughly 5/8 of the way between annealed (O) and full-hard (H28).

The graph bars on the material properties cards below compare 5457-H25 aluminum to: 5000-series alloys (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

48

Elastic (Young's, Tensile) Modulus

68 *GPa* 9.9 *x 10 ^{6} psi*

Elongation at Break

12 *%*

Fatigue Strength

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

Poisson's Ratio

0.33

Shear Modulus

26 *GPa* 3.7 *x 10 ^{6} psi*

Shear Strength

110 *MPa* 16 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

180 *MPa* 26 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

160 *MPa* 23 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

400 *J/g*

Maximum Temperature: Mechanical

180 *°C* 360 *°F*

Melting Completion (Liquidus)

660 *°C* 1210 *°F*

Melting Onset (Solidus)

630 *°C* 1170 *°F*

Specific Heat Capacity

900 *J/kg-K* 0.22 *BTU/lb-°F*

Thermal Conductivity

180 *W/m-K* 100 *BTU/h-ft-°F*

Thermal Expansion

24 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

46 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

150 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

9.5 *% relative*

Density

2.7 *g/cm ^{3}* 170

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

160 *MJ/kg* 67 *x 10 ^{3} BTU/lb*

Embodied Water

1190 *L/kg* 140 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

21 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

190 *kJ/m ^{3}*

Stiffness to Weight: Axial

14 *points*

Stiffness to Weight: Bending

50 *points*

Strength to Weight: Axial

18 *points*

Strength to Weight: Bending

26 *points*

Thermal Diffusivity

72 *mm ^{2}/s*

Thermal Shock Resistance

7.9 *points*

## Alloy Composition

Al | 97.8 to 99.05 | |

Mg | 0.8 to 1.2 | |

Mn | 0.15 to 0.45 | |

Cu | 0 to 0.2 | |

Fe | 0 to 0.1 | |

Si | 0 to 0.080 | |

Zn | 0 to 0.050 | |

V | 0 to 0.050 | |

res. | 0 to 0.1 |

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

## Followup Questions

## Further Reading

ASTM B209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate

Aluminum Standards and Data, Aluminum Association Inc., 2013

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