Q235 carbon steel coil can be treated differently according to different needs, but it is usually used directly without heat treatment. According to GB/T 700-2006 standard, Q235 carbon structural steel is divided into A, B, C, D four grades, each grade of chemical composition and mechanical properties are slightly different.

Q235 carbon steel coil has a wide range of applications in many fields, including construction, Bridges, vehicle manufacturing, ships, machinery and so on. In the field of construction, it is widely used to make steel structures, stairs, handrails, roofs, etc., because it has good plasticity and weldability, convenient processing and installation, while having high strength and stability, and can withstand the load required by most buildings. In bridge engineering, Q235 carbon steel coil is commonly used as a material for making bridge main beams, piers, bridge panels and other components, because it has high strength and durability, can withstand the load of vehicles and pedestrians, and has good corrosion resistance. In vehicle manufacturing, Q235 carbon steel rolls are also widely used, such as for the production of automotive body panels, frames, bumpers and other components.

Please note that the specific chemical composition, mechanical properties and application areas may vary depending on the manufacturer and market needs. Therefore, when selecting and using Q235 carbon steel coil, it is necessary to make a reasonable choice according to the specific application environment and requirements.