Introduction to

Carbon steel, also known as carbon steel, is an iron-carbon alloy with a carbon content of ωc less than 2%. In addition to carbon steel generally contains a small amount of silicon, manganese, sulfur, phosphorus.

According to the use of carbon steel can be divided into carbon structural steel, carbon tool steel and free cutting structural steel three categories. Carbon structural steel can be divided into building structural steel and machine manufacturing structural steel. According to the carbon content, carbon steel can be divided into low carbon steel (ωc≤0.25%), medium carbon steel (ωc=0.25%-0.6%) and high carbon steel (ωc> 0.6%)

According to the amount of phosphorus and sulfur, carbon steel can be divided into ordinary carbon steel (phosphorus, sulfur is higher), high-quality carbon steel (phosphorus, sulfur is lower) and advanced high-quality steel (phosphorus, sulfur is lower). The higher the carbon content of carbon steel, the higher the hardness, the strength is higher, but the plasticity is reduced.