Galvanneal Sheet Metal

Galvannealed steel is a matte uniform grey color which can be easily painted.

Galvanneal sheet metal.

Magnetic brinell 95. For the galvannealing process the galvanized steel is then passed through a low pressure high volume air knife which blows excesses coating off of the steel before it solidifies. Galvanneal is the main paintgrip used in the duct fabrication industry taking the place of phos bond which used to be the only option many years ago. Automotive panels tool boxes hoppers drip pans fuel tanks trailer siding roofing etc.

The increase in the amount of iron on the surface strengthens the material making it less susceptible to damage. Galvannealed steel has a matte grey color uniform which can be easily painted. Galvannealed sheet is carbon steel coated with zinc on both sides applied to the metal through a continuous hot dip process. Galvannealed sheet can be formed much in the same way and by the same variety of processes as galvanized sheet.

C1008 1010 hr steel sheet astm a1011 a569 hot rolled steel sheets are the most economical steel sheets available for a wide variety of applications hr steel sheets are easy to weld form and drill and has a slight grainy surface. Galvannealed or galvanneal galvannealed steel is the result from the processes of galvanizing followed by annealing of sheet steel. In comparison to galvanized steel the coating is harder and more brittle. Galvanneal steel includes the process of galvanizing with an added step after the zinc coating the steel is heated to around 1050 fahrenheit.

Galvanized steel sheet plates are intended for use where greater corrosion protection is required without painting a lower cost alternative to stainless steel galvanized sheet and plates have a rust free protection for up to 30 years while maintaining strength with a durable surface coating. Galvannealed steel is readily paintable. The sheet metal is heated in a 1050 f annealing oven which draws some of the iron into the outermost layers of the steel creating a zinc iron alloy. In comparison to galvanized steel the coating is harder and more brittle.

Description spec sheet item codes. However the zinc alloy coating on galvannealed sheet is more brittle than the zinc coating of galvanized sheet. Metals depot stocks many sizes in precut sizes full mill sizes or we can hot dip virtually any. As a result some amount of powdering can appear when the metal is formed.

Galvanneal also known as satin coat is similar to other galvanized steels. This process of extreme heating draws more of the iron out of the steel and causes it to mix with the zinc. Popular uses for hr steel sheet include. 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 can be painted.