How to rust ASTM A 709 gr.50w weathering steel plate?

ASTM A 709 gr.50w weathering steel plate is mainly anti-corrosion and has good welding performance. According to the addition of aging resistance element, a layer of high density about 50 ~ 100 μ m thick is produced between the rust layer and the base material of ASTM A 709 gr.50w steel plate, which has good adhesion with the base metal material.

How to rust ASTM A 709 gr.50w weathering steel plate? Generally, it takes 1-2 years for ASTM A 709 gr.50w weathering steel plate to rust, and only slight yellow rust color is found in 2-3 months, which makes it easy to rust.
1、 It can quickly produce a stable, uniform color and bright red air oxide film which is not easy to be wiped off. Under the natural environment of 25 ℃ outdoor temperature, the rust process is generally carried out within 3 hours.
2、 Under the scheme of rust solution catalytic reaction, the surface of ASTM A 709 gr.50w weathering steel plate is not smooth and tactile, which makes the buildings richer in sense of volume and quality, improves the visual impact and the actual effect of perception, rapidly improves the actual effect of landscape design, and improves the economic benefits and plastic arts economic benefits.
3、 ASTM A 709 gr.50w weathering steel plate will not be damaged by local location, local weather and direction, and the color of rust red air oxide film is uniform and stable.
4、 The process treatment of ASTM A 709 gr.50w weathering steel plate has no corrosion, and is not easy to damage the re generation of rust layer in the middle and later stage. The environmental protection is non-toxic and does not harm the plant growth. It does not harm the interdependence of limited raw materials and surrounding green plants, reflecting the concept of sustainable design scheme.

ASTM A 709 gr.50w weathering steel plate is a kind of high alloy steel which is close to the common carbon steel and stainless steel plate. The aluminum alloy element composition of ASTM A 709 gr.50w weathering steel plate is not high, but its characteristics are very good. ASTM A 709 gr.50w weathering steel plate is widely used in railway lines, landscape, highway and bridge and other sites.