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Stainless steel pipes have a long service life. From the analysis of the use of stainless steel in foreign countries, the service life of stainless steel water pipes can reach 100 years, at least 70 years, which is as long as the service life of buildings.
2. Corrosion resistance
One of the outstanding advantages of stainless steel drainage pipes and fittings is its excellent corrosion resistance, which is superb among all kinds of pipes. Because stainless steel can passivate with oxidants, a tough and dense chromium-rich oxide protective film, Dr2O3, is formed on the surface, which effectively prevents further oxidation reactions. Other metal pipes, such as galvanized water pipes and copper pipes, have little passivation ability. This is the key reason why the corrosion resistance of galvanized pipes is far less than that of stainless steel pipes.
3. Heat resistance and heat preservation
The thermal conductivity of stainless steel pipe is 1/25 of copper pipe and 1/4 of ordinary steel pipe, which is especially suitable for hot water transportation. The stainless steel commonly used in the water industry is 304 and 316 stainless steel, which can meet most of the water treatment and customs conditions.
The tensile strength of 304 stainless steel pipe is twice that of steel pipe and 8-10 times that of plastic pipe. The strength of the material determines whether the water pipe is strong, crashworthy, safe and reliable. Due to the excellent mechanical properties of stainless steel drain pipes and pipe fittings, they can withstand very high pressures, up to 10Mpa or more