Galvanized pipe, which is steel or iron pipe that has been coated with a protective layer of zinc, is designed to prevent rusting and corrosion. This process, known as galvanization, makes the pipe more durable and extends its lifespan. Galvanized pipes are commonly used in the construction of outdoor structures and in plumbing systems, where they can safely transport water and other liquids because the zinc coating is impermeable to water. While galvanized pipe is more expensive than some other types of pipe, it is often chosen for its strength and long-lasting durability.