Hot-rolled sheets play a crucial role in sheet metal processing, finding extensive applications across various industries due to their unique properties and cost-effectiveness. These sheets are produced by rolling steel at high temperatures, above its recrystallization point, which results in good formability and relatively low production costs.

　　In the automotive industry, hot-rolled sheets are widely used for manufacturing structural components. For instance, the chassis frames of vehicles rely on hot-rolled sheets for their strength and durability. The ability of hot-rolled sheets to withstand heavy loads and resist deformation under stress makes them ideal for supporting the vehicle's weight and providing a stable foundation for other components. Additionally, parts such as cross members, side rails, and some suspension components are often fabricated from hot-rolled sheets. Their formability allows for the creation of complex shapes through processes like stamping and bending, enabling automotive designers to optimize the vehicle's structure for safety and performance.

　　The construction industry also benefits significantly from hot-rolled sheets in sheet metal processing. They are used in the fabrication of large-scale structural elements, such as beams, columns, and trusses for buildings and bridges. The high strength and stiffness of hot-rolled sheets ensure that these structures can bear heavy loads, including the weight of the building itself, occupants, and environmental forces like wind and earthquakes. In addition, hot-rolled sheets are employed in the production of metal roofing and siding. Their durability and resistance to corrosion, especially when coated with protective layers, make them suitable for withstanding harsh weather conditions, providing long-lasting protection for buildings.

　　Another important application area is the manufacturing of industrial equipment. Hot-rolled sheets are used to fabricate the enclosures and frames of machinery, such as large industrial presses, conveyor systems, and agricultural equipment. The robustness of hot-rolled sheets can protect the internal components of the equipment from external impacts and provide a stable platform for operation. Moreover, in the production of storage tanks and containers, hot-rolled sheets are favored for their ability to maintain structural integrity under high pressure and stress, ensuring the safe storage and transportation of various materials.