The main components of carbon steel H-beam are iron and carbon, and the carbon content has an important impact on the performance of the steel. According to different carbon contents, it can be divided into low carbon steel, medium carbon steel and high carbon steel. Low carbon steel has a lower carbon content and has better plasticity and toughness, and is suitable for manufacturing structural parts that need to withstand greater impact and vibration; medium carbon steel has a moderate carbon content, has higher strength and hardness, and is suitable for manufacturing parts and components that bear moderate loads; high carbon steel has a higher carbon content, further improves strength and hardness, but has poor plasticity and toughness.