● A carbon steel coil is a continuous, rolled sheet of carbon steel (iron-carbon alloy) wound into a coil shape. Classified by carbon content (low, medium, high), it balances formability, strength, and cost. ● Low-carbon coils (e.g., A36) offer ductility and weldability, ideal for automotive parts or construction. Medium-carbon variants provide higher strength, used in machinery. High-carbon types are hard but less flexible, suited for tools. ● Available in various thicknesses and widths, these coils are unrolled for cutting, stamping, or forming. Common in manufacturing, construction, and metalworking, they serve as raw material for pipes, panels, and structural components.