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Galvanized steel has gone through a chemical process to keep it from corroding. The steelgets coated in layers of zinc because rust won't attack this protective metal. For countless outdoor, marine, or industrial applications, galvanized steel is an essential fabrication component.
The principal method of making steel resist corrosion is by alloying it with another metal, zinc. When steel is submerged in melted zinc, the chemical reaction permanently bonds the zinc to the steel through galvanizing. Therefore, the zinc isn't exactly a sealer, like paint, because it doesn't just coat the steel; it actually permanently becomes a part of it.
The zinc goes through a reaction with the iron molecules within the steel to form galvanizedsteel. The most external layer is all zinc, but successive layers are a mixture of zinc and iron, with an interior of pure steel. These multiple layers are responsible for the amazing property of the metal to withstand corrosion-inducing circumstances, such as saltwater or moisture.
Zinc also protects the steel by acting as a "sacrificial layer." If, for some reason, rust does take hold on the surface of galvanized steel, the zinc will get corroded first. This allows the zinc that is spread over the breach or scratch to prevent rust from reaching the steel.
Wiki User
∙ 11y ago
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∙ 15y agoIron with a zinc coating. Galvanizing is the application of a zinc coating over a metal (usually steel) to inhibit corrosion. The process is simple. In this case, manufacture your part (either forge or cast the iron) and then hot dip it in molten zinc to coat it and produce your galvanized iron part.
Wiki User
∙ 12y agoA steel article is dipped into a hot bath of moten zinc metal, which leaves a coating on the steel. The coating is known as "self healing"- a scratch through the zinc will close itself, and prevent the steel from rusting.
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∙ 12y agoSteel is commonly galvanized by plating it with Zinc.
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∙ 12y agomost are made from copper cause its easy for energy to flow through
Wiki User
∙ 14y agoa core of steel
a coating of zinc.
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