hot dipped galvanized hdg steel structure


What is Hot-Dip Galvanizing? American Galvanizers

What is Hot-Dip Galvanizing? American Galvanizers

Dec 10, 2017 · Hot-dip galvanizing (HDG) is the process of coating fabricated steel by immersing it in a bath of molten zinc. There are three fundamental steps in the hot-dip galvanizing process; surface preparation, galvanizing, and HOT-DIP GALVANIZED (HDG) SHEET STEEL - Hot-dip galvanized (HDG) is the common name for a type of sheet steel product that is coated with zinc using a continuous hot-dip coating process. The coating combines the formability and corrosion protection of zinc with the cost effectiveness of steel. HDG, bare and painted, is intended for uses where superior corrosion resistance is required. HDG Hot Dip Galvanized Coating StructureHDG Hot Dip Galvanized Coating Structure. Galvanizing forms a metallurgical bond between the zinc and the underlying steel or iron, creating a barrier that is part of the metal itself. During galvanizing, the molten zinc reacts with the surface of the steel or iron article to form a series of zinc/iron alloy layers. The figure below is a photomicrograph of a galvanized steel coating Hot-Dip Galvanizing (HDG) American Galvanizers Dec 10, 2017 · Hot-Dip Galvanizing (HDG) Whether an artful sculpture glinting under the sun or a sturdy bridge arching over a rushing river, hot-dip galvanizing protects steel from corrosion for generations throughout the world. New technologies and creative chemistry continue to evolve this 150-year old process, which facilitates its continued use in myriad applications as well as Hot-dip galvanizing of steel structures