Weathering steel poles
Weathering steel, best known as CORTEN steel is a group of steel alloys which were developed to eliminate the need for painting, and form a stable rust-like appearance if exposed to the weather for several years. In producing our corten steel poles for vineyards we choose one main type of steel: S300JOW with a resistance of 450 RpMa. The core feature of cor-ten pole its their ability to self-protect against athmospheric agents without any need of treatment along time. 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.