Carbon Steel is a widely used alloy made primarily of iron and carbon, with small amounts of other elements such as manganese. It is categorized into low, medium, and high carbon steel based on the carbon content, which influences its strength, hardness, and flexibility. Low carbon steel (less than 0.3% carbon) is ductile and used in applications like structural components and pipes. Medium carbon steel (0.3-0.6% carbon) offers a balance of strength and ductility, commonly used for automotive parts and machinery. High carbon steel (above 0.6% carbon) is very hard and strong, typically used in cutting tools and springs. Carbon steel is cost-effective, versatile, and easy to manufacture, making it suitable for a wide range of industrial and commercial applications.