Hot-dip galvanization, a process in which steel is coated in zinc, was developed primarily to prevent the alloy from corroding. Steel is dipped into a bath of molten zinc and is then removed left to cool in a quench tank. When the cooling process is complete, the zinc coating is then metallurgically bonded to the steel. Hot-dip galvanizing is carried out for many purposes other than protecting steel from corrosion. These include:
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1. Longer life, lower maintenance. Galvanization renders the surface of the steel friendlier for cleaning, resulting in a maintenance-free life of up to five decades, depending on the environment where the steel is employed. When maintenance becomes necessary, the process will be straightforward, doing away with complex preparation treatments.
2. Quick coating process. A full protection coating can be applied in just a few hours, whereas a complicated paint system would require at least a week.
3. High-strength metal product. Because the coating is bonded metallurgically to the steel, galvanized steel has by far the greatest resistance to mechanical damage during handling, storage, transport, and construction. This is an extremely important quality for industries that heavily rely on steelwork (such as shipbuilding).
4. Acceleration of construction time. Galvanized steel is a finished product in itself, which means that it only requires little preparation for various applications. No painting, touch up, or inspection required.
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Chris Keehner is the president of DS Pipe & Steel Supply LLC, a supplier of more than 120 different industrial product lines with primary focus on steel, pipes, weld fittings, groove fittings, and ball valves. For inquiries, visit this website.
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