1. Hygienic performance
The hygienic performance of stainless steel pipes is superior, eliminating the problem of "red water, blue-green water, and hidden water", no odor, no scaling, no precipitation of harmful substances, keeping the water pure and harmless to the human body. Copper pipes have problems with excess copper, blue-green water problems caused by corrosion, corrosive bitter odors, and scaling.
2. Service life
The aging life of stainless steel can reach more than 80 years and does not need to be replaced, while copper pipes can only be used for up to 50 years.
3. Compressive strength
The compressive strength of the stainless steel pipe is greater than 520MPa, while the compressive strength of the copper pipe is less than 40% of that of the stainless steel water pipe, and it is more likely to leak due to external forces.
4. Thermal insulation performance
The thermal conductivity of stainless steel pipe is 1/23 of that of copper pipe. Stainless steel pipe has good thermal insulation performance, especially suitable for hot water transportation, while copper pipe needs a professional insulation layer, otherwise the waste of heat energy will be too large.
5. Corrosion resistance
Stainless steel pipes can passivate with oxidants, forming a protective film on the surface to effectively prevent oxidation, while copper pipes have poor passivation ability, and copper pipes have poor corrosion resistance. Substances are precipitated, and the copper pipe welding joint cannot be dissolved, pickled, and passivated on the construction site, and it is difficult to carry out the anticorrosion of the internal welding joint of the pipeline, so the welding joint is easy to corrode and age.
Compared with copper pipes, the price of stainless steel pipes is lower than that of copper pipes. To this extent, once stainless steel pipes are used, there is almost zero maintenance, and the service life is consistent with the service life of buildings. However, the overall cost of copper pipes replacement will be the same as that of stainless steel water pipes. 2-4 times. Therefore, in summary, stainless steel water pipes have been widely used in hotels, hospitals, industrial buildings, residential and national government projects due to their advantages of safety and reliability, energy saving and environmental protection, and good economic performance. Therefore, stainless steel water pipes are known as The novel water supply pipe in the 21st century is worthy of its name.
