Steel is also widely used in some precision machinery, such as machine tools, precision instruments, etc. These machines require high-precision processing and assembly, and the good processing performance and stability of steel make it a reliable choice.

Steel is often used to manufacture heavy machinery, such as cranes, excavators, road rollers, etc. These machines need to withstand huge loads and impacts, and the high strength and toughness of steel make it an ideal material.

Steel is also used to manufacture power transmission and transformation equipment, such as towers and transformers. These equipment need to withstand the test of natural disasters such as strong winds and lightning, and the high strength and corrosion resistance of steel make it a reliable choice.

Steel is often used to build large public buildings, such as stadiums, exhibition halls, bridges, etc. These buildings usually have the characteristics of large spans, light weight and good earthquake resistance. For example, the National Stadium (Bird's Nest) is built with steel structure, demonstrating the excellent performance of steel in the field of construction.

With the development of technology, steel is increasingly used in residential buildings. Steel-structured houses have the advantages of fast construction, strong earthquake resistance, and recyclability. In some developed countries, steel-structured houses have become a popular construction method.

Steel is one of the main materials for shipbuilding and is used to build structures such as hulls, decks, and cabins. Steel has good corrosion resistance and wind and wave resistance, which can ensure the safe navigation of ships in severe sea conditions.