# 514.0 (514.0-F, LM5, G4A, A05140) Cast Aluminum

514.0 aluminum is an aluminum alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. 514.0 is the Aluminum Association (AA) designation for this material. LM5 is the British Standard (BS) designation. A05140 is the UNS number. Additionally, the SAE designation is 320. Older literature may refer to this material as ASTM G4A, but this is now discouraged.

The graph bars on the material properties cards below compare 514.0 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

50

Elastic (Young's, Tensile) Modulus

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

Elongation at Break

7.3 *%*

Fatigue Strength

48 *MPa* 7.0 *x 10 ^{3} psi*

Poisson's Ratio

0.33

Shear Modulus

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

Shear Strength

140 *MPa* 20 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

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

Tensile Strength: Yield (Proof)

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

## Thermal Properties

Latent Heat of Fusion

400 *J/g*

Maximum Temperature: Mechanical

170 *°C* 340 *°F*

Melting Completion (Liquidus)

640 *°C* 1180 *°F*

Melting Onset (Solidus)

610 *°C* 1120 *°F*

Solidification (Pattern Maker's) Shrinkage

1.3 *%*

Specific Heat Capacity

900 *J/kg-K* 0.22 *BTU/lb-°F*

Thermal Conductivity

140 *W/m-K* 80 *BTU/h-ft-°F*

Thermal Expansion

24 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

35 *% 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

8.9 *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)

11 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

41 *kJ/m ^{3}*

Stiffness to Weight: Axial

14 *points*

Stiffness to Weight: Bending

51 *points*

Strength to Weight: Axial

19 *points*

Strength to Weight: Bending

26 *points*

Thermal Diffusivity

57 *mm ^{2}/s*

Thermal Shock Resistance

7.9 *points*

## Alloy Composition

Among cast aluminum alloys, the composition of 514.0 aluminum is notable for containing a comparatively high amount of magnesium (Mg). Magnesium promotes hardenability through both heat treatment and strain hardening mechanisms. It also increases susceptibility to intergranular corrosion.

Al | 93.6 to 96.5 | |

Mg | 3.5 to 4.5 | |

Fe | 0 to 0.5 | |

Mn | 0 to 0.35 | |

Si | 0 to 0.35 | |

Ti | 0 to 0.25 | |

Zn | 0 to 0.15 | |

Cu | 0 to 0.15 | |

res. | 0 to 0.15 |

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

## Followup Questions

## Similar Alloys

## Further Reading

ASTM B618: Standard Specification for Aluminum-Alloy Investment Castings

ASTM B26: Standard Specification for Aluminum-Alloy Sand Castings

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