Galvanized Sheet Metal Vs Aluminum

Galvanized steel is essentially pure zinc with a very small percentage of aluminum.

Galvanized sheet metal vs aluminum.

The combination of aluminum and zinc is used once again as a protective layer to the steel. Galvannealed steel is the preferred coated steel for use in architectural applications. Galvanized steel has a porous and rough surface which is difficult to clean. The aluminum is added to improve the adhesion between the coating and the steel substrate during formation.

If we compare galvanized and aluminium steel for facade construction steel with zinc plating and aluminum alloy sheets are the closest competitors. Iron or steel can be coated with zinc. This is known as a galvanized metal. Galvalume is aluminum and zinc coated steel.

Specification astm a 653 a 653m coating designation a a60 a40 galvanized steel zinc coated by the hot dip process resulting in a full spangled finish galvanized steel is less conducive to forming welding and painting. The zinc acts as a protective layer to iron or steel to prevent rust. G90 is the best thickness for spinning and the industry standard for coating astm a653. At the same thickness steel is 2 5 3 0 times stronger.

But nevertheless steel sheet has advantages. At wenzel we take pride in making high quality parts and use only g90 galvanized sheet meaning there is 90 ounces of zinc coating per square foot or steel sheet.