Carbon steel alloys can be divided into the following categories:
Low carbon steel: The carbon content is usually less than 0.25%. Low carbon steel has relatively low strength, but good plasticity, toughness and welding performance. It is often used to manufacture various plates and stamping parts, as well as carburized parts.
Medium carbon steel: The carbon content is between 0.25% and 0.6%. Medium carbon steel has high strength, but slightly insufficient plasticity and toughness. After heat treatment and tempering, its strength and toughness are significantly improved, suitable for manufacturing shafts, rods and other parts.
High carbon steel: The carbon content is greater than 0.6%. High carbon steel has high hardness and strength, but poor plasticity and toughness. After quenching and medium temperature tempering, its hardness and strength are maintained, suitable for manufacturing parts such as springs.
Ordinary carbon steel: It contains high phosphorus and sulfur. Ordinary carbon steel has low strength and hardness, but low cost, and is often used to manufacture general mechanical parts and components.
High-quality carbon steel: contains lower phosphorus and sulfur. High-quality carbon steel has better mechanical properties and is often used to manufacture important mechanical parts and components. High-quality steel: contains lower phosphorus and sulfur. High-quality steel has higher mechanical properties and is often used to manufacture key mechanical parts and components. In addition, carbon steel can also be classified according to the smelting method and deoxidation method, such as open-hearth steel, converter steel, electric furnace steel, boiling steel, killed steel and semi-killed steel, etc.