Performance and Application Value of St37-2 Steel

St37-2 steel is a carbon structural steel under the German DIN standard, equivalent to China’s Q235 series. Classified as low-carbon steel, it has excellent plasticity, toughness, weldability, and cold-bending performance, making it widely used in construction, machinery manufacturing, and general welded structures. Known for its stable performance and reasonable cost, St37-2 is a common fundamental material in structural engineering.

In terms of chemical composition, St37-2 mainly consists of iron, with small amounts of carbon, manganese, silicon, sulfur, and phosphorus. The carbon content is typically around 0.20%, ensuring good ductility and weldability. The addition of manganese enhances toughness and tensile strength, while sulfur and phosphorus are kept at low levels to avoid reducing toughness. This balanced composition allows it to meet strength requirements for standard structural parts while maintaining excellent processability.

Regarding applications, St37-2 is widely used in bridges, vehicles, building structural components, and machinery parts. It is particularly suitable for welded structures such as steel frameworks and supports. In situations where high strength is not required but good weldability and plasticity are essential, St37-2 is an ideal choice. With its well-rounded performance, this steel is widely accepted in the global market and often serves as a standardized base steel for construction projects.