①. No matter what steel pipe is carbon steel pipe, it is just that the carbon content of different specifications of steel pipe is different, and whether other trace elements are added to form a steel pipe with special performance, such as: stainless steel pipe

②. Ordinary carbon steel pipes are very easy to rust in humid and corrosive environments, so surface treatment is usually required. General treatments include galvanizing, plastic plating, anti-corrosion paint, etc. Galvanizing is divided into hot-dip galvanizing and cold-dip galvanizing. Galvanizing, the processing technology is different, the corrosion resistance of hot-dip galvanizing is better than that of cold-dip galvanizing, and the service life is long, but the price is high

③. According to different processing techniques, steel pipes are divided into welded steel pipes and seamless steel pipes. Usually, the steel pipes we use are welded steel pipes, and seamless steel pipes are rarely used. For details, see design requirements, design documents, or consulting design people.