Acid-resistant steel is a kind of weather-resistant steel plate. With the development of some enterprises with high energy consumption and high pollution, the environment has gradually become worse. Severe weather such as acid rain often occurs, which is more destructive to some exposed buildings. In order to reduce these damages, some construction industries use acid-resistant steel as construction steel to alleviate this problem.
What are the advantages of acid-resistant steel?
After adding phosphorus, copper, chromium, nickel and other trace elements to the steel, a dense and strong adhesion protective film is formed on the surface of the steel, which prevents the spread and development of rust, and protects the substrate under the rust layer to slow down its corrosion rate. work. Generally, steel that is resistant to corrosion by weak corrosive media such as atmosphere, steam and water is called "stainless steel"; steel that is resistant to corrosion by chemically aggressive media such as acids, alkalis, and salts is called "acid resistant steel". This steel has good corrosion resistance, appropriate mechanical properties, and good cold and hot workability and weldability. Chromium is the main alloying element. In addition, nickel, molybdenum, titanium, niobium, copper, etc. are often added. There are many types and different properties. According to the structure, they can be divided into ferritic stainless steel, austenitic stainless steel, austenitic ferritic duplex stainless steel, martensitic stainless steel, precipitation hardening stainless steel, etc. Mainly used to make parts that work in various corrosive media.
The above is an introduction to the principle of acid-resistant steel. Acid-resistant steel is made by adding a small amount of weathering elements during smelting of ordinary carbon steel. After smelting, the acid resistance and corrosion resistance of the steel plate are improved. Such steel plates are used in construction. Greatly slow down the damage of the building and increase the service life of the building.
