Which is a characteristic of non-ferrous metals?

Non-ferrous metals are defined by the absence of iron, which makes them distinct from ferrous metals. One of their key characteristics is their resistance to corrosion, which stems from their chemical and physical properties. Unlike ferrous metals that rust when exposed to moisture due to iron reacting with oxygen, non-ferrous metals like aluminum, copper, and zinc do not undergo this process to the same extent. Instead, many non-ferrous metals form a protective oxide layer that shields them from further corrosion. This resistance makes non-ferrous metals ideal for a variety of applications, particularly in environments that are prone to moisture or corrosive substances. Understanding this characteristic is crucial for selecting the right materials for projects where durability and longevity are important considerations.