In this e-Learning module, the various mechanical and physical properties of aluminum that make it the casting alloy of choice will be defined. The Aluminum Association alloy designation system will be explained to identify the various alloying elements of aluminum. In addition, an introduction to aluminum heat treatment operations will be presented. By the end of this module, you will be able to describe the principle properties of aluminum; classify an aluminum alloy using the Aluminum Association designation system, identify the different alloying elements of aluminum; and define the various aluminum heat treatment operations. (0.1 CEU)