Ferrous metals are primarily composed of iron and are known for their magnetic properties and strength. Common examples include steel and cast iron, which are widely used in construction, manufacturing, and various industrial applications due to their durability and cost-effectiveness. These metals can be further categorized into different types based on their composition and properties. For instance, stainless steel is a popular ferrous alloy that contains chromium, making it resistant to corrosion. The versatility and abundance of ferrous metals make them essential in modern engineering and infrastructure.