This article focuses on the monolithic form of nonferrous alloys. The nonferrous alloys include aluminum, copper, nickel, cobalt, titanium, zinc, magnesium, beryllium, refractory metals, and their alloys. Each metal and alloy offers unique combinations of useful physical, chemical, and structural properties that are made available by its particular composition and the proper choice of processing method. The article describes the composition, designation system, properties, and processing method of these metals and alloys. It discusses the effect of alloying elements in these alloys. The article describes the specific microstructure/property relationships that are used to make specific properties available to the designers of structural applications. It provides the examples of phase diagrams that illustrate eutectic and peritectic reactions.