Magnesium die casting alloys from Chinamfg's blog

Magnesium is another very popular die casting material. It is even lighter than aluminum, with the added advantage of being highly machinable — making it suitable for cast parts that require additional laser cutting details or machined surface finishing.

A major advantage of magnesium die casting alloys is their suitability for hot-chamber die casting, making them easier to use than metal die casting like aluminum. Other elements in magnesium alloys include aluminum, zinc, manganese, and silicon.

Common magnesium die casting alloys include:

AZ91D: A general-purpose alloy with good castability, corrosion resistance, and strength-to-weight ratio. Applications include mechanical and power-train components.

AM60: An alloy with good castability, strength, vibration dampening, and ductility. It is used in automotive components such as seat frames and panels.

Rare earth alloys AS41B and AE42: Alloys with superior temperature resistance, as well as good creep resistance, corrosion resistance, and ductility. Both alloys are found in engine parts.