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GALVANIZATION AND POWDER COASTING

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Galvanized steel

Definition : Galvanized steel

Steel is an alloy made of iron and carbon. The maximum carbon content in steel is 2 %, above this it becomes cast iron.

Iron appeared in Europe well before the Christian era, during the period known as the "iron age", which followed on from the stone age and the bronze age. Steel has been produced industrially for about one hundred and fifty years.

Due to its mechanical properties, the ease with which it can be moulded and its competitive price, steel is very much in demand in the building and construction sectors. The Eiffel tower in Paris is an outstanding example, but, of course, steel can now be seen everywhere, in the form of bridges, viaducts, cranes, industrial installations, electricity pylons and roadside barriers. Steel is also used in the automobile industry for cars, trucks and caravans; for electrical appliances such as washing machines and microwaves; in storage and packaging, for cans, vats etc. The production of most of these objects requires standard qualities and sizes of steel that are usually available from stock.

Steel products are generally divided into flat products and long products.

To obtain a coating with a specific thickness and appearance, certain levels of Si and P must be respected. The French standard, AFNOR NF A 35-503, defines these levels and classifies steel that is "suitable for galvanization" into three categories.