Galvanneal Steel Sheet

Avoid painted metal degradation with resilient galvannealed steel sheet and coil products from alliance steel.

Galvanneal steel sheet.

Galvannealed steel is a matte uniform grey color which can be easily painted. Applications of galvanneal vary widely because many different types of steel can be galvannealed. Galvannealed or galvanneal galvannealed steel is the result from the processes of galvanizing followed by annealing of sheet steel. The steel is then annealed which converts the zinc into a zinc alloy coating that offers increased corrosion and scratch resistance.

Common applications of galvannealed steel. Galvannealed sheet is carbon steel coated with zinc on both sides applied to the metal through a continuous hot dip process. However the zinc alloy coating on galvannealed sheet is more brittle than the zinc coating of galvanized sheet. Hot rolled galvannealed steel is derived from the temperature of the alloy when it is rolled into a sheet.

This allows for the galvannealed steel to be more ductile and flexible. 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. Hot rolled steel is steel that has been heated above its recrystalization point and is pushed between two rollers to meet a certain length and thickness. Galvannealed steel is readily paintable.

In comparison to galvanized steel the coating is harder and more brittle. Galvannealed sheet can be formed much in the same way and by the same variety of processes as galvanized sheet.