Carbon steel angle steel is an angle steel with carbon as the main alloy element, and its carbon content is generally between 0.12% and 2.0%. Carbon steel angle steel is composed of carbon, iron, manganese, sulfur, phosphorus and other elements, among which carbon occupies a dominant position. Carbon can increase the hardness and strength of the steel, but too much carbon content can also reduce its toughness and plasticity. Carbon steel angle steel can be manufactured through various processes such as hot rolling, cold rolling, forging and casting. Due to its excellent physical properties and good processability, carbon steel angle steel is widely used in construction, engineering, manufacturing, aviation, aerospace, automobile and other fields.