Galvanneal Steel Sheet

Galvannealed steel is carbon steel coated with zinc using a hot dipped process.

Galvanneal steel sheet.

Galvannealed or galvanneal galvannealed steel is the result from the processes of galvanizing followed by annealing of sheet steel. Galvannealed steel is a matte uniform grey color which can be easily painted. Hot rolled galvannealed steel is derived from the temperature of the alloy when it is rolled into a sheet. The steel is then annealed which converts the zinc into a zinc alloy coating that offers increased corrosion and scratch resistance.

Galvannealed sheet is carbon steel coated with zinc on both sides applied to the metal through a continuous hot dip process. This allows for the galvannealed steel to be more ductile and flexible. However the zinc alloy coating on galvannealed sheet is more brittle than the zinc coating of galvanized sheet. Galvannealed sheet can be formed much in the same way and by the same variety of processes as galvanized sheet.

For instance a thin low carbon steel may be galvannealed and made into a bracket on an automobile frame while a thick high strength low alloy steel may be galvannealed and used in the structure of a. 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. Applications of galvanneal vary widely because many different types of steel can be galvannealed. As a result some amount of powdering can appear when the metal is formed.

Avoid painted metal degradation with resilient galvannealed steel sheet and coil products from alliance steel. Galvannealed steel is readily paintable.