Galvanized steel pipe is a steel pipe that has been coated with zinc. This coating protects the steel from corrosion.  It is most commonly used for outdoor construction like fences and handrails, or for some interior plumbing. It is also sometimes called galvanized iron pipe.

Galvanized steel round pipes have many applications, including plumbing, construction, and irrigation.

Plumbing

Water supply: Used in homes and businesses for water supply linesSewer: Used in sewer plumbing systemsFire fighting: Used in fire fighting systems

Construction

Fencing: Used for outdoor fencingHandrails: Used for handrails and support structuresScaffolding: Used for scaffoldingRoofing: Used for roofing, siding, beams, and framesLarger construction projects: Used for larger construction projects

Irrigation

Farm irrigation: Used in farm irrigation systems

Generally, galvanised steel lasts between 25 to 50 years before it starts losing its integrity. The exact lifespan depends on a few factors: Type of galvanisation: There are four main methods of steel galvanisation, and which one you choose has a big impact on the metal's lifespan.