The production process of hot-rolled coil includes stages such as preheating of steel billets, rough rolling, intermediate rolling, and finish rolling, covering energy consumption, material consumption, waste management, and environmental emissions required during the production process.

Hot-rolled coil is a type of steel product manufactured through a hot rolling process. It involves rolling preheated steel billets into flat plates of a certain thickness at high temperatures. The main characteristics of this type of steel are its excellent ductility and toughness, making it easy to form and process in industrial applications. Carbon steel, also known as plain carbon steel, contains about 0. 02%-2%. Carbon steel is classified into high-carbon steel, medium-carbon steel, and low-carbon steel. The higher the carbon content, the greater the hardness, strength, and wear resistance of the steel after heat treatment, but it also becomes more brittle. The lower the carbon content, the softer and more ductile it is. Carbon steel hot-rolled coil is widely used in construction, machinery manufacturing, automotive, shipbuilding, and other industries, for the production of various structural components and parts. Due to its cost-effectiveness and processing flexibility, it is one of the most commonly used types of steel.