# 5056-H38 Aluminum

5056-H38 aluminum is 5056 aluminum in the H38 temper. This is the strongest temper normally produced through the action of strain hardening followed by stabilization. It is closely related to H18. The graph bars on the material properties cards below compare 5056-H38 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

100

Elastic (Young's, Tensile) Modulus

67 *GPa* 9.8 *x 10 ^{6} psi*

Elongation at Break

14 *%*

Fatigue Strength

150 *MPa* 22 *x 10 ^{3} psi*

Poisson's Ratio

0.33

Shear Modulus

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

Shear Strength

220 *MPa* 32 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

420 *MPa* 61 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

350 *MPa* 50 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

400 *J/g*

Maximum Temperature: Mechanical

190 *°C* 370 *°F*

Melting Completion (Liquidus)

640 *°C* 1180 *°F*

Melting Onset (Solidus)

570 *°C* 1050 *°F*

Specific Heat Capacity

910 *J/kg-K* 0.22 *BTU/lb-°F*

Thermal Conductivity

130 *W/m-K* 73 *BTU/h-ft-°F*

Thermal Expansion

24 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

29 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

99 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

9.5 *% relative*

Calomel Potential

-780 *mV*

Density

2.7 *g/cm ^{3}* 170

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

150 *MJ/kg* 66 *x 10 ^{3} BTU/lb*

Embodied Water

1180 *L/kg* 140 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

57 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

880 *kJ/m ^{3}*

Stiffness to Weight: Axial

14 *points*

Stiffness to Weight: Bending

51 *points*

Strength to Weight: Axial

44 *points*

Strength to Weight: Bending

47 *points*

Thermal Diffusivity

53 *mm ^{2}/s*

Thermal Shock Resistance

18 *points*

## Alloy Composition

Al | 93 to 95.4 | |

Mg | 4.5 to 5.6 | |

Fe | 0 to 0.4 | |

Si | 0 to 0.3 | |

Mn | 0.050 to 0.2 | |

Cr | 0.050 to 0.2 | |

Zn | 0 to 0.1 | |

Cu | 0 to 0.1 | |

res. | 0 to 0.15 |

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

## Followup Questions

## Further Reading

ASTM B211: Standard Specification for Aluminum and Aluminum-Alloy Bar, Rod, and Wire

Aluminum Standards and Data, Aluminum Association Inc., 2013

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