Weathering steel screen if rust shelf life time?

Due to the strong corrosion resistance of the weather-resistant steel decorative outdoor panels, in the natural environment, it generally takes 1 to 2 years from the new steel plate to the generation of a stable, dense rust-red protective layer, and may be longer for some dry areas. Even to produce a simple uniform rusty yellow color, it takes about 1 month. In this process, the color of the component will occur uncontrollable, from blue-black to orange-red, to rust red, and finally red-brown, violent, uneven change process.

Most of the architectural landscape engineering period is tight, and the ordinary people are relatively unfamiliar with the weather-resistant steel decorative privacy screen, when they see this process, it is easy to think of the inferior project made of ordinary steel outdoor decorative screens (and even if it is the line of personnel, it is not easy to distinguish with the naked eye), this misunderstanding greatly hit the good design of the construction side.
Therefore, the introduction of accelerated corrosion of rust steel plate, the principle is through a series of physical and chemical processes to accelerate the corrosion process, so that the workpiece within a week of completion to reach the first relatively stable color state, although the state will still produce color changes in the future, but the change is quite soft and gradual, and the general poor quality ordinary steel laser cut fence panels rust and rust spot shedding process, there is huge The difference.