Rusting treatment for Corten steel

The weather-resistant steel plate is between ordinary steel and stainless steel. It is used for outdoor steel for containers, power plants, chimneys, railway projects, such as large outdoor sculpture steel. Weather-resistant steel (that is, atmospheric corrosion-resistant steel) is between ordinary steel and stainless steel Between low-cost and low-alloy steel series.

After adding trace elements such as phosphorus, copper, chromium and nickel to the steel, a dense and strong protective film is formed on the surface of the steel, which prevents the diffusion and development of rust and protects the substrate under the rust layer to slow down its corrosion rate. . The amorphous spinel oxide layer formed between the rust layer and the substrate with a thickness of about 50 μm to 100 μm is dense and has good adhesion to the metal of the substrate. The presence of this dense oxide film prevents the atmosphere The infiltration of oxygen and water into the steel matrix slows down the deep development of corroded steel materials and greatly improves the resistance of steel materials to large gas corrosion.

1. Rapidly form a rust-red oxide film that is stable, uniform in color thickness, and not easily wiped off. The rust treatment process is generally completed within 3 hours under an outdoor temperature of 25 degrees Celsius.
Second, under the rust treatment catalytic scheme, the surface roughness produced quickly has a feel, making its structures more volume and quality, sublimating visual and sensory effects, quickly improving the effect of garden design, and improving economic and artistic benefits!
This feel is the feel that the designer yearns for. Normal weathering steel naturally rust takes 1-2 years to have such an effect. It only has a slight yellow rust color for 2-3 months. There is no feel and it is easy to fall off!
3. The color of the rust-red oxide film formed is uniform and stable regardless of the local geographical location, local weather, the prescribed location (facing southeast or northwest), etc.

Fourth, the treatment process is not corrosive, and will not affect the continued formation of the surface rust layer at the later stage. It is environmentally friendly, non-toxic and harmless, and does not affect the growth of plants. Does not affect the mutual symbiosis of limited materials and surrounding plants, reflecting a sustainable design concept.