This course manual provides an overview of engineering materials used in the automotive industry. It covers the classification of metals into ferrous and non-ferrous categories, detailing the properties and applications of each. Key topics include low, medium, and high carbon steels, each suited for different automotive components based on strength, flexibility, and corrosion resistance. The manual explores alloy steel and stainless steel, emphasizing their enhanced properties like corrosion resistance and durability. Non-ferrous metals, such as aluminum, copper, brass, and titanium, are discussed for their unique qualities like lightweight and conductivity. The manual concludes with a quiz to reinforce understanding of these materials and their applications.