After heat treatment, wide and thick carbon steel plates exhibit improved strength, toughness, and wear resistance, making them suitable for manufacturing heavy machinery, automotive components, and construction equipment. Q235B carbon steel wide and heavy plate is a low-carbon structural steel plate processed by specific heat treatment technologies. This steel is known for its good ductility, toughness, and weldability, and its mechanical properties and wear resistance can be significantly enhanced through heat treatment processes such as normalizing, quenching, and tempering. The production process of heat treated wide and heavy plates includes heating, soaking, cooling, and post-treatment of the plates, covering energy consumption, material consumption, waste treatment, and environmental emissions required during the production process. This dataset is formed by consolidating data from multiple sources.