Galvanized Steel Sheet Process

The hot dip galvanizing process figure 1 has been used since 1742 providing long lasting maintenance free corrosion protection at a reasonable cost for decades although hot dip galvanizing has been utilized to protect steel for generations the galvanizing process continues to evolve with new technologies and creative chemistries.

Galvanized steel sheet process.

Galvanization or galvanizing also spelled galvanisation or galvanising is the process of applying a protective zinc coating to steel or iron to prevent rusting the most common method is hot dip galvanizing in which the parts are submerged in a bath of molten hot zinc. Welding galvanized steel is a dangerous task since the galvanized zinc coating on the metal becomes extremely toxic when it s heated. Nuts bolts tools and wires of all kinds are now galvanized because it is a cheap process and definitely helps boost the metal s lifespan. The hot dip process consists of submerging the carbon steel into a molten zinc bath approximately 680 degrees fahrenheit.

In this process steel is passed as a continuous ribbon through production and into a bath of. Some drinking water pipes are still made from galvanized steel. Cool rolled sheet metal is also frequently galvanized. Galvanized steel is a carbon steel that has been coated with zinc.

Galvanized steel in particular is often what is used in modern steel frame buildings. Electro galvanized steel is a process in which a layer of zinc is bonded to steel in order to protect against corrosion. 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. Galvanneal is the process of taking hot dipped galvanized steel and passing it through a furnace to anneal the coating.

Cool rolled sheet metal is also frequently galvanized. Similar to galvanized steel is galvanneal steel. Nuts bolts tools and wires of all kinds are now galvanized because it is a cheap process and helps boost the metal s lifespan. Egi steel sheet is manufactured by electroplating a pure zinc coating on one or two sides of carbon steel sheet.

The continuous hot dip coating process according to astm a653 specification for steel sheet zinc coated galvanized or zinc iron alloy coated galvannealed by the hot dip process is a widely used method to coat sheet products prior to fabrication. Take the proper safety precautions by wearing a welding mask a good welding respirator gloves and an apron. This process causes the iron and zinc layers to diffuse into one another causing the formation of zinc iron alloy layers at the surface.