Steel balls bai can be divided into stainless steel bal […]
Steel balls bai can be divided into stainless steel balls, bearing steel du balls, and carbon steel balls according to their materials; among them, carbon steel balls are divided into high, medium, and dao low carbon steel balls according to the material used. So how is carbon steel classified?
Carbon steel is classified according to the carbon content. The carbon content is less than 1.35%. In addition to iron, carbon and impurities such as silicon, manganese, phosphorus, and sulfur within the limit, steel that does not contain other alloying elements.
The performance of carbon steel mainly depends on the carbon content. As the carbon content increases, the strength and hardness of the steel increase, and the ductility, toughness and weldability decrease. Compared with other steels, carbon steel is the first to be used, with low cost, wide performance range and the largest amount.Carbon Steel Ball
Usually divided into low carbon steel (carbon content of 0.04% to 0.25%), medium carbon steel (carbon content of 0.25% to 0.6%) and high carbon steel (carbon content of 0.6% to 1.35%) according to carbon content.
Divided into ordinary carbon steel by quality, its harmful impurities phosphorus and sulfur content are less than 0.05%, including Class A steel (Class A steel, guaranteed mechanical properties), Class B steel (Class B steel, guaranteed chemical composition) and special class Steel (Class C steel, guaranteed mechanical properties and chemical composition); high-quality carbon steel, the content of harmful impurities phosphorus and sulfur are less than 0.04%; high-quality carbon steel, the content of harmful impurities phosphorus and sulfur less than 0.03%.
According to the purpose, it is divided into carbon structural steel and carbon tool steel. The former is mainly used to manufacture various structural parts and machine parts, generally low-carbon steel and medium-carbon steel; the latter is used to manufacture knives, measuring tools, molds, etc. Generally high-carbon steel.