# AS41A (AS41A-F, M10410) Magnesium

AS41A magnesium is a magnesium alloy. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. AS41A is the ASTM designation for this material. M10410 is the UNS number.

It has a very low density among magnesium alloys. In addition, it has a fairly high ductility and a fairly high melting temperature.

The graph bars on the material properties cards below compare AS41A magnesium to other magnesium alloys (top) 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

Elastic (Young's, Tensile) Modulus

45 *GPa* 6.6 *x 10 ^{6} psi*

Elongation at Break

11 *%*

Fatigue Strength

100 *MPa* 15 *x 10 ^{3} psi*

Poisson's Ratio

0.29

Shear Modulus

17 *GPa* 2.5 *x 10 ^{6} psi*

Shear Strength

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

Tensile Strength: Ultimate (UTS)

230 *MPa* 33 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

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

## Thermal Properties

Latent Heat of Fusion

370 *J/g*

Maximum Temperature: Mechanical

110 *°C* 230 *°F*

Melting Completion (Liquidus)

620 *°C* 1150 *°F*

Melting Onset (Solidus)

570 *°C* 1050 *°F*

Specific Heat Capacity

1000 *J/kg-K* 0.24 *BTU/lb-°F*

Thermal Conductivity

68 *W/m-K* 39 *BTU/h-ft-°F*

Thermal Expansion

26 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

17 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

92 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

12 *% relative*

Density

1.6 *g/cm ^{3}* 100

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

160 *MJ/kg* 68 *x 10 ^{3} BTU/lb*

Embodied Water

980 *L/kg* 120 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

21 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

220 *kJ/m ^{3}*

Stiffness to Weight: Axial

15 *points*

Stiffness to Weight: Bending

72 *points*

Strength to Weight: Axial

38 *points*

Strength to Weight: Bending

50 *points*

Thermal Diffusivity

41 *mm ^{2}/s*

Thermal Shock Resistance

14 *points*

## Alloy Composition

Mg | 92.8 to 95.8 | |

Al | 3.5 to 5.0 | |

Si | 0.5 to 1.5 | |

Mn | 0.2 to 0.5 | |

Zn | 0 to 0.12 | |

Cu | 0 to 0.060 | |

Ni | 0 to 0.030 |

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

## Followup Questions

## Similar Alloys

## Further Reading

ASTM B94: Standard Specification for Magnesium-Alloy Die Castings

Essential Readings in Magnesium Technology, Suveen N. Mathaudhu et al. (editors), 2014

Environmental Degradation of Advanced and Traditional Engineering Materials, Lloyd H. Hihara et al., 2014.

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