What Is Cor-Ten Anyway?

 
            In a nutshell, Cor-Ten is a combination of alloys that thru the chemical interaction of weather and steel, prevents rust from penetrating the container and creating rust holes. Cor-Ten was patented by United States Steel and is now used in any situation where rust needs to be prohibited, and the amount of time spent on painting steel structures kept to a minimum. This is why Cor-Ten is also called the “weathering” steel. The steel actually forms a shield over the steel. Because of the distribution and concentration of the alloying combination in the steel, a prohibitive rusting effect is achieved. This shield regenerates continuously when exposed to atmospheric changes.
 
            Weathering steel is used in more things than just container manufacturing. It’s a primary addition to steel sculpture (favored by avant-guard European artists) for the effects it gives to the object. The patina is much sought after for the reddish, rust hue it imparts to the art. While some see it as rust and not pleasing at all, others see esthetic value and won’t purchase anything not made from Cor-Ten.
 
            As with all things seemingly perfect, Cor-Ten does have a few flaws. Cor-Ten in itself is not rustproof. If water is allowed to stand in pockets, it could lead to rusting. When a container is manufactured, great care is given to ensure for good drainage. Cor-Ten has also been known to discolor concrete pavement nearby from rain run-off. New formulations of Cor-Ten have vastly improved this problem. To ensure that weld points weather at the same rate, it is imperative that proper welding techniques are used to help this action along.
 
            But these minor flaws aside, a container manufactured out of Cor-Ten will give you years of service, and look healthy doing it. Your container can be painted if you decide you don’t like it’s looks, while still maintaining it’s rustproof integrity. Don’t be told the container you want is “steel”. Make sure it’s Cor-Ten steel.
 

          

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