The vast majority of Magnesium die-cast automobile parts are made from three different Magnesium alloys. Each is formulated to achieve a unique set of properties and performance characteristics best suited to specific applications. They are:
AZ91D
Most commonly used alloy for high pressure die-casting. Offers excellent strength-to-weight ratio, very good corrosion resistance and superior castability. This alloy is typically used for powertrain and mechanical components where toughness is more important than deformation capability.
AM60B
Commonly used for die-casting automotive safety components such as instrument panel structures and seat frames. This alloy offers excellent ductility, energy absorbing properties, strength and castability.
AM50A
With a lower Aluminium content than AM60B this alloy offers a further increase in ductility but at a slightly reduced strength and a slight reduction in castability. It is typically used where the performance requirements demand elongation properties beyond that of AM60B.