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Galvanized iron pipe vs galvanized steel pipe

Galvanized iron is iron which has been coated in a layer of zinc to help the metal resist corrosion. Steel can also be galvanized. When metal is going to be used in an environment where corrosion is likely, it is often galvanized so that it will be able to withstand the conditions. Even with galvanization, however, corrosion will eventually start to occur, especially if conditions are acidic.

There are two primary techniques which can be used to make galvanized iron. The most common is hot-dip galvanization, in which the iron is moved through an extremely hot bath of molten zinc, which may be mixed with small amounts of lead, depending on the circumstances. When the iron emerges from the bath, the zinc will have bonded, creating a layer of zinc on the surface of the iron. Sometimes, the metal may be passed through a mill to flatten and even out the coating. Another technique which can be used is electrodeposition, also known as electroplating, although this is rare.Once galvanized, iron is covered in a layer of zinc which may be shiny to dull gray. The zinc can be painted, if desired, or left plain. Painting is often done when the iron must match other building materials, or when people want to make it less obvious. In the garden, for example, it may be painted green so that it will blend in with foliage instead of standing out.

As long as the zinc coating remains intact, the galvanized iron should remain in relatively good condition. However, acidic conditions can erode the zinc over time, creating patches where corrosion can occur. Corrosion can also occur when the coating is penetrated, as when someone drives a nail through a sheet of galvanized iron, exposing the iron inside to the elements. Once corrosion starts, it can spread under the zinc, eventually causing the metal to fail.There are a wide range of uses for this type of iron, which comes in pipes, stakes, sheeting, and wire, among other formats. Many hardware and home supplies carry galvanized iron products and may be willing to cut pieces to custom sizes by request. People can also be referred to professionals who will weld or cut galvanized iron to meet the needs of a particular project.

Standard iron consists entirely of the metal element iron, whereas galvanized iron has an added layer of zinc to it. When iron is galvanized, it’s submerged in a bath of liquid zinc. The zinc is heated so that it changes from a solid state to a liquid state. The iron is then dipped into the bath of molten zinc, after which it’s allowed to cool. Once the zinc cools, it hardens to form a protective shell over the surface of the iron.

Galvanized iron is the same as standard iron, the only difference is that it features a layer of zinc. The added layer of zinc helps to protect the iron from rust and corrosion. Without it, the iron will be exposed to moisture and oxygen from its surrounding environment. If left unchecked, this will trigger a chemical reaction with the iron known as oxidation. Oxidation will cause the iron to rust and corrode.

Galvanization is a method of protecting steel and iron from rusting by coating them with a thin layer of zinc. When metal is going to be used in an environment where corrosion is likely, it is often galvanized so that it will be able to withstand the conditions.

When iron is mixed with nickel and chromium, we get stainless steel, which is hard and does not rust. Steel can also be galvanized. Galvanized steel is more preferred from anticorrosion point of view.
 

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