Steel is a material with certain shape, size and properties, which is made of ingot, billet or steel through pressure processing. Most steel products are processed by pressure, and the pressure will cause plastic deformation of the processed steel products (billets, ingots, etc.). ). According to the different processing temperatures of steel, it can be divided into cold working and hot working. Steel: Ingots, billets or steel are made into various shapes, sizes and properties by pressure processing.
Steel is an indispensable and important material for national construction and the realization of the four modernizations. According to the different cross-sectional shapes, steel products are generally divided into four categories: profiles, plates, pipes and metal products, as well as heavy rail, light rail, large steel, medium steel, small steel, cold-formed steel, high-quality steel, wire rod, medium-thick steel, thin steel, electrical silicon steel sheet, strip steel and seamless steel pipe.
Metals other than ferrous metals are called nonferrous metals, such as copper, tin, lead, zinc, aluminum, brass, bronze, aluminum alloy and bearing alloy.