Weathering steel hollow rounded lettering various finishing bending

Weathering steel, namely atmospheric corrosion resistant steel, low alloy steel by adding a certain amount of alloying elements made of ordinary steel, the main alloying component Cu, P, Cr, Ni and other elements. Features weathering steel is able to withstand corrosion under natural atmospheric conditions. Early weathering steel, as with ordinary carbon steel will rust, the later the situation is different. After a period of time due to the weathering steel rust steel surface Cu, P and other trace element enrichment, forming an amorphous layer of dense tissue rust layer, and the substrate with very strong. This layer of rust layer can be stabilized against atmospheric moisture and intrusion of harmful ions to some extent, prevent the base metal from further corrosion. In the early weathering steel corrosion, rust layer formed on the surface than steel compact, relatively small cracks and holes; 25d after the local steel and weathering steel have suffered delamination, corrosion product is no difference, the difference is mainly rust layer alloy The element. Weathering steel rust layer has precipitated Cu, Cr alloy elements, gathered at the crack of the water vapor in the atmosphere can resist their invasion of harmful ions, to prevent further corrosion of the base metal. So as to achieve the role of atmospheric corrosion resistance! Weathering steel can also be directly exposed to the atmosphere, usually after years of rust layer gradually stabilized, corrosion no longer develop, the appearance of a beautiful chocolate. This steel junction due to aging and other issues not paint without painting and maintenance, greatly reducing maintenance costs, rusting steel, rusty steel, red rusty steel walls, rusting iron, rust red rusty red steel plate to be able to maintain long-term firming The rust layer named. Surface long reddish color rendering,