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Low carbon steel (also known as mild steel) contains up to 0.3% carbon, making it relatively soft and easy to shape. It is commonly used in construction, automotive manufacturing, and general engineering applications.
Medium carbon steel contains between 0.3% and 0.6% carbon, making it stronger than low carbon steel but less ductile. This type of steel is often used for gears, axles, and shafts.
High carbon steel contains more than 0.6% carbon, making it extremely hard and brittle. This type of steel is often used for cutting tools, knives, and blades.