Difference between CORTEN A weathering plate and ordinary steel plate

With the development of the iron and steel industry, the demand for CORTEN A weathering plate in many construction industries has gradually changed from the demand for quantity to the quality. For some open-air buildings, if the ordinary steel plate is used, it will be full of corrosion in a few years. Even if it is painted for protection, it will also damage the surrounding environment and steel itself The research and development of CORTEN A weathering plate has brought good solutions to these problems.

1. Corrosion resistance: the corrosion of CORTEN A weathering plate in natural climate is that a dense oxide layer is formed on the surface of steel, which prevents the oxygen and water in the atmosphere from penetrating into the matrix, which plays an oxidation role. The corrosion of ordinary steel will not be protected by the oxidation layer, but will be more serious.

2. Corrosion will not fall off naturally: the corrosion of CORTEN A weathering plate is naturally formed rust, which is tightly attached to the surface of the base course, and will not fall off even if touched by hand; while the surface corrosion of ordinary steel forged weathering steel plate is the same as that of CORTEN A weathering plate, it will fall off easily when touched by hand, which can be easily distinguished by naked eyes.

3. The corrosion color is natural: the corrosion of CORTEN A weathering plate presents different colors according to the degree and time of corrosion, and these colors are presented by iron ion oxidation in steel, so the corrosion will not cause damage to the surrounding ecology and environment; In order to have the same appearance as CORTEN A weathering plate, ordinary steel is painted. Even if it presents the same color, the paint itself is a chemical synthetic agent with a pungent smell and has a certain impact on the surrounding ecology.