Due to its unique anti-rust properties, weathering steel, corrosion resistance, long service life, thinning and consumption reduction, labor saving, power saving, etc., what is the difference between weathering steel and ordinary steel? Today, weathering steel manufacturers will give you a detailed introduction to weathering steel!
What kind of weathering steel? Adding phosphorus, copper, chromium, nickel and other weather-resistant elements to steel can form a dense and strong adhesion oxide layer between the rust layer and the substrate. The dense oxide has stable and uniform natural corrosion characteristics. Prevent oxygen and water from penetrating into the substrate in the air, protect the substrate under the rust layer, and slow down its corrosion rate.
Therefore, in order to identify the authenticity of weathering steel, we must first understand its corrosion process. Rust spots begin to weather the steel in the early days. There is little rust in weathering steel, and the rust spots are small and dense. During the stable period of the weathering steel plate, a clear and dense anti-rust core layer will be formed, which will be closely combined with the rust spots to form a protective layer. It is difficult to wipe off rust and dark colors (generally 7-8 years, 2 years for coastal environments) by hand.
In ordinary steel grades, the initial rust spots are relatively loose, and the rust is more in the middle section, the rust is larger, and the rust is thinner. There are black spots on the bottom of the workpiece, and the rust columnar and tear marks are more serious. The stabilizer has a larger rust adjustment force, otherwise the overall rust will peel off, rust, and appear reddish brown or yellowish brown.
The articles on weathering steel products of the above-mentioned manufacturers are helpful to you.
