Omad chose corten steel for these features:
- its high corrosion resistance (CORrosion resistance),
- its mechanical resistance (TENsile strength),
- the beauty and novelty of its color tones,
- the environmental performance of 100% recyclable material,
- the suitability to architectural applications,
- the union of strength and modernity.
Cor-ten steel (CORrosion resistance + TENsile strength) was patented in 1933 by American Company “United States Steel Corporation”, part of weathering steel, that is a group of steel alloys which were developed to eliminate the need for painting, and form a stable rust-like appearance. “Weathering” means that due to their chemical compositions, these steels exhibit increased resistance to atmospheric corrosion compared to other steels. This is because the steel forms a protective layer on its surface under the influence of the weather. The corrosion-retarding effect of the protective layer is produced by the particular distribution and concentration of alloying elements in it. The layer protecting the surface develops and regenerates continuously when subjected to the influence of the weather. In other words, the steel is allowed to rust in order to form the ‘protective’ coating. It ‘s not recommended for use in confined spaces, not in contact with the atmosphere. Recommendations for use: Water stagnation must be avoided. Should be used only mechanical fasteners or stainless steel coated. Should not be in contact with noble materials such as zinc. To make it shine and reduce metal powders dispersion use a lightly moistened cloth or apply some scalded linseed oil on the corten hardware surface with a brush. The surface appearance can be uneven, according with natural features of corten steel, as well as it could produce metal powders. The corten’s surface appearance is warm and intense. The natural elegance of rust offers many opportunities for application of this material, from sculptures to buildings and much more.
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