Galvanneal Sheet Metal

Galvannealed steel has a matte grey color uniform which can be easily painted.

Galvanneal sheet metal.

As the metal strip exits the coating bath the zinc is subjected to an in line heat treatment that converts the entire coating to a zinc iron alloy giving the sheet improved surface finish so it can be painted. Galvannealed steel is created by a hot dip coating process. In comparison to galvanized steel the coating is harder and more brittle. A particularly popular combination is coating carbon steel with a layer of zinc known as galvanized steel.

Galvannealed steel is carbon steel coated with zinc using a hot dipped process. Galvannealed steel is very conducive to forming welding and allows for excellent paint adhesion. Galvanneal is the main paintgrip used in the duct fabrication industry taking the place of phos bond which used to be the only option many years ago. The steel is then annealed which converts the zinc into a zinc alloy coating that offers increased corrosion and scratch resistance.

Avoid painted metal degradation with resilient galvannealed steel sheet and coil products from alliance steel. Has no protective film. One notable process called galvannealing. This is preferred over galvanized if the metal is to be painted.

There are however several different processes to apply this zinc layer. In comparison to galvanized steel the coating is harder and more brittle. It is vastly used for many miscellaneous applications. As the steel emerges from the molten zinc bath all excess zinc is removed from the surface using heated air knives.

Galvanneal steel is produced on a continuous hot dipped galvanized steel line. Galvannealed or galvanneal galvannealed steel is the result from the processes of galvanizing followed by annealing of sheet steel. Sacrificial coatings are an excellent way to protect an underlying base material from the effects of corrosion. Galvannealed sheet is carbon steel coated with zinc on both sides applied to the metal through a continuous hot dip process.

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. Galvannealed steel sheet metal also known as galvanneal is the result of galvanizing followed by annealing of sheet steel. Galvannealed steel is a matte uniform grey color which can be easily painted. The resulting finish is a dull matte surface.

From there the steel continues through an annealing furnace converting the zinc into a zinc iron alloy coating galvanneal. 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.