CORTEN Weathering Steel Plate

Weathering steel, that is, atmospheric corrosion-resistant steel, is a low-alloy steel series between ordinary steel and stainless steel. Weathering steel is made of ordinary carbon steel with a small amount of corrosion-resistant elements such as copper and nickel. Extension, forming, welding and cutting, abrasion, high temperature and other characteristics;

At the same time, it has the characteristics of rust resistance, corrosion resistance and longevity of components, thinning and consumption reduction, labor saving and energy saving. Weathering steel is mainly used for steel structures that are exposed to the atmosphere for a long time, such as railways, vehicles, bridges, towers, photovoltaics, and high-speed projects. It is used to manufacture structural parts such as containers, railway vehicles, oil derricks, seaport buildings, oil production platforms and containers for corrosive media in chemical petroleum equipment.

After ordinary steel is rusted, it will gradually corrode and age until it is damaged, and the appearance of weathering steel gives designers the opportunity to make full use of the rusted form of steel to express in the creation of plastic art.

Cui Qingwei, Ph.D., Department of Landscape Architecture, School of Architecture, Tsinghua University, who has done a lot of research on the application of this material in landscape architecture design practice, said that in modern landscape architecture design, the choice of materials is influenced by factors such as project attributes, site conditions, designers The influence of various conditions such as preference, cost and consumption.

Starting from the material itself, each material language has its own unique expression and spiritual connotation. Corrosion steel is often used as a synonym for the industrial age, a visual expression of the concept of time, and a label of technology and cultural creativity in different types of design contexts, and is widely used. In the early stage of corrosion of weathering steel, the rust layer formed on the surface is denser than that of carbon steel, and there are relatively few cracks and holes; after 25 days, both carbon steel and weathering steel locally appear delamination, and there is no difference in corrosion products. The difference is mainly the alloy in the rust layer. the role of elements. There are Cu and Cr alloy elements precipitated in the rust layer of weathering steel, which gather at the cracks to resist the intrusion of water vapor and its harmful ions in the atmosphere and prevent further corrosion of the base metal. So as to achieve the effect of atmospheric corrosion resistance.