Magnesium Alloy
| Alloy Designation |
Alloying Additives |
Uses |
Reasons for use |
| AZ91 |
9.0 % Al 0.7 % Zn 0.13 % Mn |
General casting alloy |
Good castability, good mechanical properties at T<150ºC. |
| AM60 |
6.0 % Al 0.15% Mn |
High pressure die casting alloy |
Greater toughness and ductility than AZ91, slightly lower strength. Often preferred for automotive structural applications. |
| AZ31 |
3.0 % Al 1.0 % Zn 0.2 % Mn |
Wrought magnesium products |
Good extrusion alloy. |
| ZE41 |
4.2 % Zn 1.2 % RE 0.7 % Zr |
Specialist casting alloy |
Rare earth addition improves creep strength at elevated temperature. Pressure tight. |
| AS41 |
4.2 % Al 1.0 % Si |
General casting alloy |
Better creep resistance than AZ91 at elevated temperatures but lower strength. |
For critical low weight applications, alloys can be used that contain zirconium, expensive rare earths and even silver. Alloy development remains a strong area for research, particularly with a view to improving the corrosion resistance and high temperature creep resistance of cast components.
Related References:
Magnesium Alloys
Mechanical Properties of Magnesium Alloys
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