Another reason not to use hot-dipped zinc coating is that for bolts and nuts of size M10 (US 3/8″) or smaller, the thick hot-dipped coating fills in too much of the threads, which reduces strength (because the dimension of the steel prior to coating must be reduced for the fasteners to fit together). In the case of automobile bodies, where additional decorative coatings of paint will be applied, a thinner form of galvanizing is applied by electrogalvanizing The hot-dip process generally does not reduce strength on a measurable scale, citation needed with the exception of high-strength steels (>1100 MPa) where hydrogen embrittlement can become a problem. In modern usage, the term “galvanizing” has largely come to be associated with zinc coatings, to the exclusion of other metals. After all of the zinc in the immediate area is consumed, localized corrosion of the base metal can occur. The primary purpose of black steel pipe is to carry propane or natural gas into residential homes and commercial buildings. Galvanized pipe is commonly used as scaffolding frames because of its resistance to corrosion. The primary use of galvanized pipe is to carry water to homes and commercial buildings. Galvanized orders may require up to 7 days processing time. Pipe Coating: Black vanish, bare, clear oil. Pre Galvanised Steel Pipes, High Quality Pre Galvanised Tube. Black iron pipe is used to transport natural and propane gas in residential applications. If there are pipes with extremely thin walls, holes or cracks, those pipes will need to be replaced by our licensed plumber, who remains on-site during the pipelining process. Prevents the Leaching of Lead into the Building Water Supply. It Takes Less Time to Line Your Pipes Than Replace Them. Potable Water Pipe Coating – 35 to 50 Years. New Plumbing Pipes Are Rated to Last for Decades. The zinc coating, whether pure or impure, interacts with the chemicals and minerals present in the tap water. Galvanized steel plumbing was standard in homes and commercial buildings during most of the 1900s. “The Edwards’ laboratory is well known for uncovering risks associated with concentrations of lead in urban water supplies,” says Domenico Grasso, PhD, Editor-in-Chief of Environmental Engineering Science and Provost, University of Delaware. Black & Galvanized Steel Tubes Conforming to IS : 1239 (I) Equivalent to BS: 1387 & Structural Tubes Conforming to IS: 1161. Galvanized steel will be good if you need a lot of steel piping and don’t quite have the budget to afford stainless steel, but it won’t last as long and is difficult to repair. With that said, galvanized pipe isn’t nearly as popular as it once was, since stainless steel tends to be stronger and lasts longer. Stainless and Galvanized Steel Pipe Prices. The deterioration of the pipes was intensified by the mechanical wear resulting from a substantial amount of suspended solids in the flowing water. View more Products related to Steel Pipes and Tubes. Owing to the wide experience in this domain, we are instrumental in offering Galvanized Steel Pipe to our clients.