A steel chimney, also known as a metal chimney, is a type of chimney that is constructed using steel components. Steel chimneys are used in industrial and commercial settings to vent gases and fumes produced by boilers, furnaces, and other industrial processes. Steel chimneys are typically made from either stainless steel or carbon steel. Stainless steel is preferred for its corrosion resistance, durability, and aesthetic appeal. Carbon steel, on the other hand, is less expensive.