![]() ![]() There are many different metals that can be made into sheet metal, such as aluminium, brass, copper, steel, tin, nickel and titanium. Parts manufactured from sheet metal must maintain a uniform thickness for ideal results. Copper thickness, for example, is measured in ounces, representing the weight of copper contained in an area of one square foot. Gauge differs between ferrous ( iron-based) metals and nonferrous metals such as aluminum or copper. Commonly used steel sheet metal ranges from 30 gauge to about 7 gauge. The larger the gauge number, the thinner the metal. ![]() In the U.S., the thickness of sheet metal is commonly specified by a traditional, non-linear measure known as its gauge. In most of the world, sheet metal thickness is consistently specified in millimeters. ![]() The coils are formed by running a continuous sheet of metal through a roll slitter. Sheet metal is available in flat pieces or coiled strips. Thicknesses can vary significantly extremely thin sheets are considered foil or leaf, and pieces thicker than 6 mm (0.25 in) are considered plate, such as plate steel, a class of structural steel. Sheet metal is metal formed into thin, flat pieces, usually by an industrial process. Microscopic close-up of mild steel sheet metal Metal formed into thin, flat pieces Sheets of Nirosta stainless steel cover the Chrysler Building. ![]()
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