Galvannealed Steel Sheet Properties

Class 1 mechanical properties chemical composition.

Galvannealed steel sheet properties.

Meets astm a653 09 specifications requirements. This allows for the galvannealed steel to be more ductile and flexible. Galvanneal is similar to other galvanized steels. However galvannealed steel goes through an additional annealing process which induces diffusion alloying between the molten zinc coating and the steel.

It is perhaps most similar to hot dip galvanizing. Both are passed through a hot dip coating process. Design must allow for some strength reduction near welds. They both are zinc coated at the mill and are designed for rust and corrosion resistance.

Best use is for painted applications. This is preferred over galvanized if the metal is to be painted. Meets astm a653 09 specifications requirements. In comparison to galvanized steel the coating is harder and more brittle.

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. Carbon sheet steel with a zinc coating both sides that has been heat treated to form an iron zinc alloy layer underneath the zinc and on top of steel. Can be painted in the as shipped condition. Galvannealed steel grade data sheet.

Galvannealed steel hot dip zinc iron coated structural steel annealed with guaranteed minimum yield strength. The hot dip process pioneered by ak steel provides a tight metallurgical bond between the steel and coating. One of the primary attributes of the galvannealed coating is that the. In order to create galvanneal steel the material is run through a liquid bath of zinc alloy.

Steel base guaranteed typical range guaranteed maximum percent longitudinal tensile carbon c 0 25 yield strength minimum ksi 80 80 117 phosphorus p 0 04 tensile strength minimum ksi 82 82 120. Galvannealed steel grade data sheet galvannealed steel hot dip zinc iron coated structural steel annealed with guaranteed minimum yield strength. At times the galvannealed coating may appear similar to uncoated cold rolled steel. May have minor scratching.

The iron diffuses from the steel into the coating the galvannealed surface has a non spangled matte finish a finish very different than the highly metallic appearance of the galvanized coating. Has no protective film. 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. Light grey matte finish.