# B535.0 (B535.0-F, A25350) Cast Aluminum

B535.0 aluminum is an aluminum alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. B535.0 is the Aluminum Association (AA) designation for this material. A25350 is the UNS number.

The graph bars on the material properties cards below compare B535.0 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

65

Elastic (Young's, Tensile) Modulus

66 *GPa* 9.6 *x 10 ^{6} psi*

Elongation at Break

10 *%*

Fatigue Strength

62 *MPa* 9.0 *x 10 ^{3} psi*

Poisson's Ratio

0.33

Shear Modulus

25 *GPa* 3.6 *x 10 ^{6} psi*

Shear Strength

210 *MPa* 30 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

260 *MPa* 38 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

130 *MPa* 19 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

390 *J/g*

Maximum Temperature: Mechanical

170 *°C* 340 *°F*

Melting Completion (Liquidus)

630 *°C* 1170 *°F*

Melting Onset (Solidus)

550 *°C* 1020 *°F*

Specific Heat Capacity

910 *J/kg-K* 0.22 *BTU/lb-°F*

Thermal Conductivity

96 *W/m-K* 56 *BTU/h-ft-°F*

Thermal Expansion

25 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

24 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

82 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

9.5 *% relative*

Density

2.6 *g/cm ^{3}* 160

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

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

Embodied Water

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

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

22 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

130 *kJ/m ^{3}*

Stiffness to Weight: Axial

14 *points*

Stiffness to Weight: Bending

51 *points*

Strength to Weight: Axial

28 *points*

Strength to Weight: Bending

35 *points*

Thermal Diffusivity

40 *mm ^{2}/s*

Thermal Shock Resistance

11 *points*

## Alloy Composition

Among cast aluminum alloys, the composition of B535.0 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 | 91.7 to 93.4 | |

Mg | 6.5 to 7.5 | |

Ti | 0.1 to 0.25 | |

Si | 0 to 0.15 | |

Fe | 0 to 0.15 | |

Cu | 0 to 0.1 | |

Mn | 0 to 0.050 | |

res. | 0 to 0.15 |

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

## Followup Questions

## Similar Alloys

## Further Reading

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