09CuPCrNi-A Corten steel: Chemical Composition and Mechanical Properties

09CuPCrNi-A Corten steel is a kind of atmoSPHEric corrosion-resistant steel, and it is also a representative grade of Corten steel. In some countries, Corten steel is called Corten steel, which represents the grade Corten-A, which is similar to the domestic 09CuPCrNi-A. 09CuPCrNi-A Corten steel usually has a thickness of 1.5-20MM, and is usually shipped in the form of hot-rolled coils, but 09CuPCrNi-A Corten steel is also delivered in a cold-rolled state. The price of 09CuPCrNi-A corten steel is higher than that of SPA-H, Q235NH, Q355NH and other grades. 09CuPCrNi-A has been impact tested at -40 degrees.

Chemical Composition and Mechanical Properties

09CuPCrNi-A chemical composition:

C: ≤0.06 Si: ≤0.57 Mn: 0.48 P: 0.018 S: 0.013 Ni: 0.15 Cr: 0.47 Cu: 0.3

Mechanical properties of 09CuPCrNi-A

Lower yield strength: 355MPa

Tensile strength: 490~630

Elongation after break: ≥22

09CuPCrNi-A Corten steel is often used in railway vehicles, steel structures, towers, buildings and garden landscape decoration. It has a durable effect, so its economy is higher than that of ordinary steel. It can be painted or directly exposed to the outside air during use, due to its good atmospheric corrosion resistance.

09CuPCrNi-A Corten steel is to add a small amount of Cu, P, Cr, Ni and other alloy design elements into the steel, so that no protective layer is formed between the rust layer and the base material through the steel pipe, and it can be effectively managed the oxygen and moisture in the tissue and the atmosphere penetrate deeply into the steel pipe itself, thereby slowing down the corrosion rate and greatly improving the steel pipe's ability to resist atmospheric corrosion.

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