Galvanneal Sheet Metal

There are however several different processes to apply this zinc layer.

Galvanneal sheet metal.

Galvannealed steel is created by a hot dip coating process. One notable process called galvannealing. The process produces a uniform zinc coating on both sides of the product. From there the steel continues through an annealing furnace converting the zinc into a zinc iron alloy coating galvanneal.

Sacrificial coatings are an excellent way to protect an underlying base material from the effects of corrosion. Galvannealed steel zinc iron alloy coated by the hot dip process followed by heating the steel to induce diffusion alloying between the molten zinc coating and the steel. Galvannealed steel is very conducive to forming welding and allows for excellent paint adhesion. The resulting finish is a dull matte surface.

In comparison to galvanized steel the coating is harder and more brittle. Galvannealed steel is a matte uniform grey color which can be easily painted. The steel is then annealed which converts the zinc into a zinc alloy coating that offers increased corrosion and scratch resistance. A particularly popular combination is coating carbon steel with a layer of zinc known as galvanized steel.

This is preferred over galvanized if the metal is to be painted. Has no protective film. It is vastly used for many miscellaneous applications. A40 galvanneal is the most commonly used coating while a60 is less popular because it tends to be too powdery when it sits unpainted too long.

Galvanneal steel is produced on a continuous hot dipped galvanized steel line. As the steel emerges from the molten zinc bath all excess zinc is removed from the surface using heated air knives. Avoid painted metal degradation with resilient galvannealed steel sheet and coil products from alliance steel. Galvannealed steel is carbon steel coated with zinc using a hot dipped process.

Description galvannealed steel has very similar properties as standard galvanized but the surface has a more porous and abrasive finish that more readily accepts paint. Galvannealed sheet is carbon steel coated with zinc on both sides applied to the metal through a continuous hot dip process. Galvannealed steel sheet metal also known as galvanneal is the result of galvanizing followed by annealing of sheet steel. Galvannealed or galvanneal galvannealed steel is the result from the processes of galvanizing followed by annealing of sheet steel.

Immediately after the hot dip process the metal is exposed to a heat treatment that allows the iron from the base metal to further diffuse into the zinc creating a zinc iron alloy layer. In comparison to galvanized steel the coating is harder and more brittle.