Galvanized pipe

Galvanized pipe is steel pipe with a zinc coating applied as a protective surface layer. The current identity does not resolve how that coating was applied, so it must not be assumed to mean hot-dip or electro-galvanized manufacture without supporting documentation. Zinc can provide barrier and sacrificial protection, but durability depends on the coating process, thickness and continuity, environment, installation damage, and service conditions. Selection should define the base pipe, galvanizing method, internal and external coverage, joining method, treatment of cut or welded areas, and project specification.