Characteristics of Corten steel
Corten steel is steel to which a relatively large amount of copper has been added and relatively
small amounts of other materials (including nickel Ni, chromium Cr and phosphorus P).
This results in a great increase in corrosion resistance in the untreated state, and in an increase in
The corrosion resistance increases because the copper causes a dense, stable layer of oxide to
form after a period of time that protects the underlying metal quite well. With regular steel the oxide
layer is not dense and the oxidation process continues without decreasing!
With Corten steel we must take into account that there will be a reduction in the thickness of the material
(because of the corrosion described above) of maximum 0.4 mm during the first 10 years and after that of
0.2 mm per 10 years. This phenomenon is called reduction and can be greater if free chlorides are present
on the surface. These can originate from sea salt, chlorine from swimming pools, de-icing salt, …
Visually, the following is obtained:
Immediately after placement, the cassettes have a metal colour.
Very quickly, under the influence of the wet and dry cycle, a light-coloured oxide layer will form that is very
irregular. Discontinuities in the exterior wall (windows, doors, awnings, …) result in a disruption of the water
flow over the exterior wall and will cause great differences in the discolouration of the surface.
After a few months, the surface will have a light brown colour (unless absolutely no water runs down the
This light brown colour will get its final dark brown colour after from 3 to 10 years.
The surface of Corten steel is continually in transformation. In this transformation, time plays an important
role. We also refer to the fact that upon damage to the exterior wall or if there are extensions or adaptations,
there will always be a difference in colour between the old and the new. These colour differences decrease
after a period of time.
Corten steel fire pit table propane
Carbon Steel, Corten Steel, Stainless steel
Rust, Bare, Powder Coated, Polished, Black Heat-resisting Paint, Iron Oxide
Diameter : 320mm--1200mm
Thickness : 1.2mm--3.0mm
Inside : Anti-wear foam paper
Outside : Plywood box
Free (without any condition)
OEM & ODM
Customized service is available.