What is galvanized steel pipe?
Galvanized steel plumbing pipes are pipes made of steel, and coated with zinc to prevent rusting. This is commonly done by dipping the pipes in a molten zinc bath. These pipes and fittings were commonly installed in homes prior to 1950 (some sites say it was used until the 1960s). Over time, the galvanized steel pipes begin to rust or corrode from the inside out, resulting in reduced water pressure and restricted water flow. This presents an increased risk of leaks or ruptures occurring in the pipes and the potential for flood damage. Corrosion also occurs to steel when it is connected directly to copper or brass.
What use of galvanized steel pipe?
Steel is affordable, strong and readily worked by craftsmen, but it will quickly rust if not protected from the effects of moisture. One way to prevent steel from rusting is to immerse it in a hot zinc bath or to attach the zinc via an electroplating process; these processes are known as galvanizing.
The zinc coating will prevent the steel core from corroding by serving as a protective outer layer. In addition, zinc in low quantities is not toxic to humans, and that makes it an ideal metal for coating water pipes.
One of the most common materials used for water transport is galvanized steel. While galvanized piping has faithfully served customers for decades, it is now obsolete and may need to be replaced due to possible problems it can cause homeowners. Below is more information on galvanized pipe and why you should contact a plumber for assistance if you discover it in your home.
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