Galvanneal Sheet Metal Gauge

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

Galvanneal sheet metal gauge.

18 26 gauge 48 and 60 wide products. As a registered iso 9001 2015 company rolled steel products state of the art equipment meets virtually any requirement in panel flat quality leveling precision slitting close tolerance sheet blanking strip quality edge conditioning precision shearing and complete cold reducing capabilities. In comparison to galvanized steel the coating is. Galvannealed steel sheet metal also known as galvanneal is the result of galvanizing followed by annealing of sheet steel.

Galvannealed steel is readily paintable. Sheet metal gauge size chart gauge or gage sizes are numbers that indicate the thickness of a piece of sheet metal with a higher number referring to a thinner sheet. Galvannealed sheet and coil are made with a cold rolled substrate or base metal that is hot dipped with zinc and then subjected to an annealing process that forms a zinc iron composite on the surface. Galvanneal steel galvannealed sheet metal available in different gauges.

Galvannealed steel has very similar properties as standard galvanized but the surface has a more porous and abrasive finish that more readily accepts paint. However the zinc alloy coating on galvannealed sheet is more brittle than the zinc coating of galvanized sheet. May have minor scratching. The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material.

The gauges shown above are based on american galvanneal sheet steel manufacturers gauge thickness. Galvannealed steel has a matte grey color uniform which can be easily painted. For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter. The steel is then annealed which converts the zinc into a zinc alloy coating that offers increased corrosion and scratch resistance.

This is preferred over galvanized if the metal is to be painted. Galvanneal sheets offers good paintability weldability corrosion resistance and formability. A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. Galvannealed sheet can be formed much in the same way and by the same variety of processes as galvanized sheet.

As a result some amount of powdering can appear when the metal is formed. Galvannealed steel is carbon steel coated with zinc using a hot dipped process. These will vary from british gauges with some exceptions.