All About Galvanized Pipe
Galvanized pipe is no longer installed in new homes and has not been for the last 30 or so years. This type of pipe is a steel pipe that has a zinc coating to help it last longer than regular steel pipe and was used in for water supply lines. It is not used in new homes any longer because over time the zinc reacts with the minerals in tap water and restricts the water flow causing low water pressure.
People that are using galvanized pipe now are repiping their homes by replacing old galvanized pipes or do it yourselfers making projects like a kid's fireman's pole, that do not need standard pipes that are up to code. Galvanized pipe comes in lengths of 21 feet which can be cut down to whatever length needed for your project. In order to cut the pipe you will need a pipe vise and pipe cutter as well as oil to keep the pipe cutter cool and keep it from dulling quickly. If your project is a repiping project and requires your galvanized pipe to be threaded you will need a die cutter to add threads and oil will also be used to keep this tool cool and sharp as well.
Galvanized pipe is currently used often in outdoor railings because it is good in the weather with out corroding very fast like copper or iron.