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Galvanized steel pipes are coated with zinc to slow down rusting. Hot-dip galvanized pipes are used for exterior structures, while electroplated pipes are used internally. Galvanized steel is strong, lightweight, and resistant to rot and fire, making it ideal for construction and automobile interiors.
Galvanized Pipe Steel is an alloy of iron and carbon that has been rolled into a tube shape, often round, square or rectangular, and then coated with zinc. Steel pipes are usually galvanized in one of two ways. It can be hot dipped or passed through molten zinc, which forms a thick protective coating, or electroplated – passed through a zinc solution with an electric current, resulting in a thinner layer of zinc which adheres to the steel.
When steel pipe is galvanized, the zinc that adheres to it will corrode faster than the steel. This is beneficial because it works to slow down the time it will take for the steel to rust. This process is actually electrochemical in nature, with zinc having a higher electronegativity than steel. When zinc is applied to steel with the understanding that it will corrode faster, but shorten its corrosion time, the zinc is referred to as a sacrificial anode.
This metal tube is used in a variety of construction settings. A common use of galvanized steel tube sections is as internal framing members in all types of building construction. For internal use, electroplated or electrogalvanized steel can be used. Because the zinc layer on this type of coated steel is thinner, it is generally not used where it will be exposed to external elements.
Hot-dip galvanized tubular steel is typically the product of choice for exterior structural applications. This type of pipe is often used in the construction of carports, playground equipment, farm buildings, awnings, sheds and trailers. Can be coated with a stoked enamel finish to provide further corrosion protection.
The benefits of using galvanized steel pipes in construction are many. It’s very strong. Consequently, less wood is required to frame a building than if the same building were framed with wood. It also generally weighs less than wood. This usually means that a building won’t have to be designed for as much load or weight, which often reduces construction expenses. Other benefits of metal pipes include resistance to rot, resistance to fire, and the fact that they won’t crack or warp.
Galvanized tubular steel is also sometimes used for the construction of automobile interiors. Steel gives the car chassis strength, while the fact that it is galvanized protects against corrosion. Also, galvanized steel sheet is sometimes used to make automobile bodies. This metal plate, along with the painted finish, helps retard the rusting of the bodywork.
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