Galvanized Sheet Metal Vs Aluminum

The zinc acts as a protective layer to iron or steel to prevent rust.

Galvanized sheet metal vs aluminum.

Galvanized steel has better corrosion resistance. Galvalume is aluminum and zinc coated steel. The combination of aluminum and zinc is used once again as a protective layer to the steel. This is known as a galvanized metal.

This is achieved through a multi step process where a steel sheet is immersed in pure molten zinc at a very high temperature bonding the zinc to the 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. 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. 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. At the same thickness steel is 2 5 3 0 times stronger. Galvannealed steel is the preferred coated steel for use in architectural applications. But nevertheless steel sheet has advantages.

G90 is the best thickness for spinning and the industry standard for coating astm a653. Iron or steel can be coated with zinc.