# AM60B (AM60B-F, M10602) Magnesium

AM60B magnesium is a magnesium alloy. It is typically furnished in the as-fabricated (no temper or treatment) condition. AM60B is the ASTM designation for this material. M10602 is the UNS number. It has a fairly high ductility among magnesium alloys. In addition, it has a moderately low thermal conductivity and a moderately low tensile strength. The graph bars on the material properties cards below compare AM60B magnesium to other magnesium alloys (top) and the entire database (bottom).

## Mechanical Properties

Brinell Hardness

62

Elastic (Young's, Tensile) Modulus

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

Elongation at Break

11 *%*

Fatigue Strength

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

Poisson's Ratio

0.29

Shear Modulus

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

Shear Strength

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

Tensile Strength: Ultimate (UTS)

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

Tensile Strength: Yield (Proof)

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

## Thermal Properties

Melting Completion (Liquidus)

620 *°C* 1140 *°F*

Melting Onset (Solidus)

540 *°C* 1000 *°F*

Specific Heat Capacity

1000 *J/kg-K* 0.24 *BTU/lb-°F*

Thermal Conductivity

61 *W/m-K* 35 *BTU/h-ft-°F*

Thermal Expansion

26 *µm/m-K*

## Otherwise Unclassified Properties

Base Metal Price

12 *% relative*

Density

1.7 *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

990 *L/kg* 120 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

21 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

190 *kJ/m ^{3}*

Stiffness to Weight: Axial

15 *points*

Stiffness to Weight: Bending

71 *points*

Strength to Weight: Axial

38 *points*

Strength to Weight: Bending

50 *points*

Thermal Diffusivity

37 *m ^{2}/s*

Thermal Shock Resistance

14 *points*

## Alloy Composition

Mg | 92.6 to 94.3 | |

Al | 5.5 to 6.5 | |

Mn | 0.24 to 0.6 | |

Zn | 0 to 0.22 | |

Si | 0 to 0.1 | |

Cu | 0 to 0.010 | |

Fe | 0 to 0.0050 | |

Ni | 0 to 0.0020 |

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

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