With the implementation of China's reform and opening up policy, the national economy has achieved rapid growth, and a large number of urban residences, public buildings and tourist facilities have been built, which has put forward new requirements for hot water supply and domestic water supply. In particular, people are paying more and more attention to water quality issues, and the requirements are constantly increasing. Galvanized steel pipe, a commonly used pipe, will gradually withdraw from the historical stage under the influence of relevant national policies because of its corrosion, and plastic pipes, composite pipes and copper pipes have become common pipes for pipeline systems. However, in many cases, stainless steel pipes have more advantages, especially thin-walled stainless steel pipes with a wall thickness of only 0.6~1.2mm in high-quality drinking water systems, hot water systems and water supply systems that put safety and hygiene in the first place, which have the characteristics of safety and reliability, health and environmental protection, and economic applicability. It has been proved by domestic and foreign engineering practice to be one of the best, new, energy-saving and environmentally friendly pipes with the best comprehensive performance of water supply system, and it is also a very competitive water supply pipe, which will surely play an incomparable role in improving water quality and improving people's living standards.
In the building water supply pipe system, because the galvanized steel pipe has ended a hundred years of glorious history, a variety of new plastic pipes and composite pipes have developed rapidly, but various pipes still have some deficiencies to varying degrees, far from fully meeting the needs of the water supply pipe system and the country's requirements for drinking water and related water quality. Therefore, relevant experts predict that building water supply pipes will eventually return to the era of metal pipes. According to foreign application experience, thin-walled stainless steel pipes are identified as one of the pipes with the best comprehensive performance in metal pipes.
