Galvanized steel is the result of applying a protective zinc coating to steel to prevent it from rusting. The coating is used to prevent corrosive substances from reaching the metal underneath and stop the formation of rust. Galvanization is important because it provides long-lasting protection for steel. You can tell when metal is galvanized because the zinc makes a distinctive pattern on the metal called “spangle.” Our galvanized steel sheet and coils are often used by customers in HVAC and construction.