# ISO-WD43150 (MgMn2) Magnesium

ISO-WD43150 magnesium is a magnesium alloy. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. It has a very high thermal conductivity among magnesium alloys. In addition, it has a very high electrical conductivity and a very high melting temperature.

The graph bars on the material properties cards below compare ISO-WD43150 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

2.8 *%*

Fatigue Strength

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

Poisson's Ratio

0.29

Shear Modulus

18 *GPa* 2.6 *x 10 ^{6} psi*

Shear Strength

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

Tensile Strength: Ultimate (UTS)

250 *MPa* 36 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

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

## Thermal Properties

Latent Heat of Fusion

350 *J/g*

Maximum Temperature: Mechanical

95 *°C* 200 *°F*

Melting Completion (Liquidus)

610 *°C* 1130 *°F*

Melting Onset (Solidus)

590 *°C* 1090 *°F*

Specific Heat Capacity

990 *J/kg-K* 0.24 *BTU/lb-°F*

Thermal Conductivity

140 *W/m-K* 78 *BTU/h-ft-°F*

Thermal Expansion

27 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

31 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

170 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

12 *% relative*

Density

1.7 *g/cm ^{3}* 100

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

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

Embodied Water

970 *L/kg* 120 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

6.1 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

250 *kJ/m ^{3}*

Stiffness to Weight: Axial

15 *points*

Stiffness to Weight: Bending

71 *points*

Strength to Weight: Axial

41 *points*

Strength to Weight: Bending

52 *points*

Thermal Diffusivity

81 *mm ^{2}/s*

Thermal Shock Resistance

14 *points*

## Alloy Composition

Mg | 97.5 to 98.8 | |

Mn | 1.2 to 2.0 | |

Si | 0 to 0.1 | |

Cu | 0 to 0.050 | |

Ni | 0 to 0.010 | |

res. | 0 to 0.3 |

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

## Followup Questions

## Similar Alloys

## Further Reading

ISO 3116: Magnesium and magnesium alloys - Wrought magnesium alloys

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