Use Of Weathering Steel

Weathering steel has excellent corrosion resistance. It has been widely used in steel structures such as buildings, vehicles, bridges, and towers. There are three main ways to use weathering steel: bare use, coating use and use after rust layer stabilization treatment.
1. Use naked:
The most common way of using weathering steel is to use it exposed. Generally, after 3 to 10 years, the rust layer on the surface of weathering steel gradually stabilizes, the corrosion development slows down, and the appearance becomes beautiful chocolate color.
Since the rust layer stabilization process of weather-resistant steel is affected by the chemical composition of the steel, the use environment, the stagnant water and dust accumulation in structural details, and mechanical wear and other conditions, if improper use destroys the conditions for the formation of a stable rust layer, weather-resistant steel will also Severe rust will occur.
2. Coating use:
In many sectors such as construction, bridges, vehicles, etc., weathering steel is mostly used for painting, just like ordinary steel. Compared with ordinary steel, weathering steel after painting shows extremely superior corrosion resistance. However, due to the increased use costs and operating procedures, coating is difficult to be widely used on large components.
3. Use after stabilization treatment
Implement a treatment on the surface of the component at the beginning to shorten the formation process of the stabilized rust layer of weathering steel. This can not only avoid the phenomenon of yellow rust liquid dripping in the early stage of use of weathering steel, prevent contamination, but also form a stable rust layer. Although exposed use is an economical and unique way to use weathering steel, it takes a long time to complete the stabilization process of the rust layer in the natural environment. Before the stable rust layer is formed, early rust liquid often sag and scatter, polluting the surrounding environment. The phenomenon.