Smelting technology of A588 weathering steel

A588 weathering steel is the same as ordinary steel plate. After a certain period of contact with the atmosphere, a layer of rust will also occur and adhere to the surface of A588 weathering steel. But the difference is that this layer of rust will not be easily erased like ordinary steel plate rust, but firmly adhered to the surface of A588 weathering steel, thereby reducing further contact between the A588 weathering steel and the atmosphere, and preventing further corrosion of A588 weathering steel. In order to deepen our understanding of A588 weathering steel, let's take a look at the A588 weathering steel smelting process.

When trace elements such as phosphorus, copper, chromium and nickel are added to A588 weathering steel, a protective film with strong adhesion is formed on the surface of A588 weathering steel, which hinders the diffusion and development of rust and protects the matrix underneath the rust layer to slow down its corrosion rate. The amorphous spinel oxide layer formed between the rust layer and the matrix is compact and has good adhesion with the matrix metal. Because of the existence of this dense oxide film, oxygen and water in the atmosphere are prevented from infiltrating into the A588 weathering steel matrix, the development of rust into the steel material is slowed down, and the atmospheric corrosion resistance of the A588 weathering steel is greatly improved. A588 weathering steel is a kind of steel system that can be thinned, bare or simplified coating, which can make products corrosion resistant, prolong life, save labor, reduce consumption, upgrade and replace. A588 weathering steel is also a steel system that can be integrated into modern metallurgical new mechanism, new technology and new technology to make its sustainable development and innovation. During smelting, scrap steel is added into the furnace together with burden, and is smelted according to conventional process. After tapping, deoxidizer and alloy are added. After argon blowing, molten steel is casted immediately. After argon blowing, the molten steel is casted into slab by continuous caster. Because of the addition of rare earth elements in steel, A588 weathering steel is purified and the content of inclusions is greatly reduced.

A588 weathering steel is mainly used in railway, vehicles, bridges, towers and other steel structures exposed to the atmosphere for a long time. It is used to manufacture structural parts such as containers, railway vehicles, oil derricks, harbour buildings, oil platforms and containers containing hydrogen sulfide corrosion media in chemical and petroleum equipment.

The above is the smelting technology of A588 weathering steel. Corrosion of A588 weathering steel will produce different colors over time, which will enhance the artistic quality in the design of some landscape or curtain wall. Therefore, A588 weathering steel has a good development prospect in the field of design as well as in the field of construction.