Hot Dipped Galvanised Steel Sheet

Dramatically improves press formability of hot dip galvanized steel sheet 2008 01 22 development of new hot dip galvanizing steel sheet jfe ecogal based on 5 al zn alloy coated steel sheet high functional hot dip galvanized steel sheet for construction materials electrical equipments and general steel sheet markets.

Hot dipped galvanised steel sheet.

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. Hot dipped galvanized steel sheet in coil is cold rolled steel coil coated with zinc on two sides by a continuous hot dip process. 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. This is the most widely used pregalvanized product and is specified by en 10346.

An alternative is to take a specific product typically sheet wire or tubes and galvanize them using an automated process. 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. 27 011 871 0000 info macsteel co za 7 brook road boksburg gauteng south africa. Protect against corrosion with hot dipped galvanized steel sheet and coil products from alliance steel.

Pre galvanized steel sheet. 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. Painting hot dipped galvanizing the go to document for painting hot dip galvanizing in the united states has historically been astm 5 d6386 standard practice for preparation of zinc hot dip galvanized coated iron and steel product and hardware surfaces for painting. When exposed to the atmosphere the pure zinc zn reacts with oxygen o 2 to form zinc oxide which further reacts with carbon dioxide co 2.

Produces high quality hot dip galvanized steel coils and electrogalvanized coils. 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. Sheet is uncoiled and passed through a reducing atmosphere prior to immersion in. Continuous sheet galvanizing is also a hot dip process but is only applied to steel sheet strip and wire.

This method tightly adheres the coating to the steel with an iron zinc alloy bonding layer formed by a diffusion process while the heated steel strip is in contact with the molten zinc.