GNEE GROUP

What is A/B Corten Steel？

Corten steel is created using copper (Cu), chromium (Cr), and nickel (Ni) as the primary alloying elements with less than 0.2% carbon (C) present. It is available in two distinct grades, each of which is structurally and chemically distinct from the other.

Corten A Steel Sheet is mainly distinguished by additional phosphorous (P), which is generally present in the alloy at concentrations of 0.07 – 0.15%. This imparts enhanced corrosion-resistant properties. Corten B Steel, meanwhile, is not as anti-corrosive but is more suitable for heavy, load-bearing applications.

When to Use Corten A Material

The self-generating patina of Corten A benefits from the enhanced corrosion-resistant properties of the alloy, enjoying longer-lasting and more robust weatherproof properties. This also enables the use of Corten steel in more harsh environments, such as gas flues and for various components in industrial and hot-working environments.

Corten A is also more suitable for meeting the demands of aesthetic architectural applications. The improved corrosion resistances ensure the attractive, rust-like finish lasts for longer with minimal to no maintenance. In fact, Corten A forms the basis of some of the most famous Corten steel structures around the world.

When to Use Corten B Steel

Corten B is preferable for heavy structural applications due to its enhanced tensile strength. The minimum tensile strength of Corten B strips is approximately 485 N/mm2. This provides significantly improved load-bearing capabilities, which makes Corten B suited for heavyweight fascia and structural elements that are constantly exposed to atmospheric corrosives and weathering conditions.

Corten Steel from GNEE Steel

GNEE Steel is leading supplier of Corten steel, providing strips ,sheet, plate in thicknesses ranging from 2 – 13 mm. If you would like to learn more about the Corten steel products from GNEE Steel, please contact a member of the team directly.