Some Beneficial Properties of Stainless Steel Potable Water Tube
Excellent corrosion resistance - SS are significantly more resistant to oxidation by water and biocides than carbon steel and cast or ductile iron. This results in longer life time for pipelines.
Hygienic materials - Due to their very high passive film stability, SS are basically inert in waters. Leaching of alloying elements (Cr and Ni) is within safe limits. As a result, they provide a better quality of drinking water.
Erosion - corrosion - The duplex stainless steels are much more resistant to erosion - corrosion than carbon steel, particularly if sand particles are present.
Ease of maintenance - With high corrosion resistance and easy welding, water leaks can be drastically reduced, probably from 25% down to less than 5% which leads to further cost savings. This argument is more and more important due to the increase in the cost of water and water treatment.