Hot Dip Galvanized Steel Sheet

Protect against corrosion with hot dipped galvanized steel sheet and coil products from alliance steel.

Hot dip galvanized steel sheet.

A thin coat of zinc adheres to the steel part and is quickly oxidized by the surrounding atmosphere. The steel is rinsed again immersed in a flux bath removed and allowed to dry. Hot dip galvanized hdg steel is often just called galvanized steel although the full name is more correct. Hot dip galvanization is a form of galvanization it is the process of coating iron and steel with zinc which alloys with the surface of the base metal when immersing the metal in a bath of molten zinc at a temperature of around 449 c 840 f.

The finish is applied by passing the steel through a molten bath of zinc at a high temperature. As a very cost effective building material and decorative material because our products are cheap and reliable our products are sold all over the world favored by local customers and also promote the development of the local economy. A coil to coil process steel sheets from 0 010 to 1 70 inches 0 25 mm to 4 30 mm thick and up to 72 inches 1 830 mm wide is passed as a continuous ribbon through cleaning baths and molten zinc at speeds up to 600 feet per minute. Produces high quality hot dip galvanized steel coils and electrogalvanized coils.

Commercial steel deep drawing steel and extra deep drawing steel are designations described in the astm specifications for steel sheet zinc coated galvanized or zinc iron alloy coated galvannealed by the hot dip process a653 a653m. In alternative processes the flux solution floats on the top of the molten zinc and the steel item receives the flux layer as it enters the hot dip tank to be galvanized. Continuous sheet galvanizing is also a hot dip process but is only applied to steel sheet strip and wire. Hot dip galvanized roofing sheet tolerances on dimensions and shape according to din en 59 231.

This specification is for hot dip galvanizing steel sheet using the continuous high speed galvanizing process. Production of galvannealed sheet steel begins with hot dip galvanization of sheet steel. Astm a123 standard specification of zinc hot dip galvanized coatings on iron and steel products refers to products fabricated and then hot dip galvanized. It is a coating thickness designation in the galvanizing specification astm a653.

Hot dip galvanizing is a process of coating steel with a thin zinc layer which serves as a barrier between the steel and the environment. G90 is not a galvanizing specification. Hdg steel products are prepared by plunging a steel product into a vat of molten zinc.