S355

S355 is a type of structural steel commonly used in construction and engineering. The "S" stands for 'structural', while "355" refers to the minimum yield strength of 355 megapascals (MPa), indicating its strength when subjected to stress. This steel is known for its excellent weldability and formability, making it suitable for various applications such as beams, bridges, and buildings. S355 can be used in different environmental conditions and is available in various thicknesses, providing engineers with a versatile material for robust and durable structures.