The heat treatment processes of steel pipes mainly fall into the following five categories:

Steel structure is a structure made of steel as a material. The steel structure housing has been paid attention to by all parties for its comprehensive advantages such as light weight, low foundation cost, suitable for weak foundation, easy installation, fast construction, short cycle, fast investment recovery, less environmental pollution and good seismic performance.

This paper is to analyze the characteristics and advantages of steel structure, steel structure is the largest modern level of a structure. There are many characteristics of heat insulation, durability, building environmental protection building industrialization also has many advantages.

Steel structure is a kind of building structure with steel as the main component, which has excellent mechanical properties, durability and reliability, and is widely used in high-rise buildings, Bridges, airports, stadiums and other projects. In this paper, the advantages, applications and future development trends of steel structure will be discussed.