How to distinguish weather resistant steel plate and ordinary steel plate

1. Corrosion resistance: Weather-resistant steel plates are corroded in natural climates, and a dense oxide layer is formed on the surface of the steel, which prevents oxygen and water in the atmoSPHEre from penetrating into the matrix and plays a role of oxidation; while ordinary steel is not only rusted.There will be no protection from the oxide layer, but it will rust more severely.

2. Corrosion will not fall off naturally: the corrosion of weather resistant steel plate is naturally formed, and it is tightly attached to the surface of the base layer. The weather resistant steel plate is the same, but it will easily fall off when touched by hand, which can be easily distinguished with the naked eye.

3. The color of rust is natural: the rust of weather-resistant steel plate shows different colors according to the degree of corrosion and time, and these colors are oxidized by iron ions in the steel, so the rust will not cause damage to the surrounding ecology and environment. In order to have the same appearance as the weather-resistant steel, ordinary steel is painted. Even if it shows the same color, the paint itself is a chemical synthetic agent with a pungent odor and has a certain impact on the surrounding ecology.

Pre: Main uses of different grades of carbon structural steel

Next: What are the advantages of NM400 abrasion resistant steel plate