Non-ferrous metals are those that do not contain significant amounts of iron. This category includes metals like aluminum, copper, lead, zinc, and nickel. These metals are known for their resistance to corrosion, lighter weight, and excellent conductivity, making them valuable in various applications, including construction, electrical wiring, and automotive manufacturing. Unlike ferrous metals, which can rust and are magnetic, non-ferrous metals offer unique properties that make them suitable for specific uses. For example, copper is widely used in electrical applications due to its high conductivity, while aluminum is favored in the aerospace industry for its lightweight and strength.