Different Gauges Of Sheet Metal

History of the gauge system.

Different gauges of sheet metal.

Kynar galvalume steel for metal roofing and gutters. For 18 ga crs the weight is 2 0 pounds per square foot and for 20 ga crs the weight is 1 5 pounds per square foot. There are several different gauge systems used today with specific gauge designations used for specific metal types. Thus a 10 gauge steel sheet which has a thickness of 0 1345 inches will weigh 41 82 0 1345 5 625 pounds per square foot.

Even when the non ferrous metal plate and the steel plate are the same ga the thickness is actually different. 0 027 or 0 032 for seamless gutters and any other thickness for custom gutters. The customary range gauge of a metal sheet is from a scale of 35 going down to 6. For example a gage ordinarily used for copper brass and other non ferrous materials may incorrectly be used for steel and vice versa.

Sheet metal on the other hand is basically metal designed into thin quantities used for metalworking. The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material. The brown and sharpe gage also known as the american wire gage awg is used for most non ferrous metals such as aluminum and brass. The gauge system has long history in metal fabrication.

Is different from inches there is no conversion formula. Kynar aluminum for metal roofing. 0 7 mm 0 8mm and 1 5 mm. 16 ga crs is 2 5 pounds per square foot.

Steel or sheet metal steel is an alloy made up of different kinds of elements. Because of the varying thicknesses a gauge chart should be used to ensure the metal meets the required dimensions. Galvanized steel sheet metal measuring 30 gauges equals 0 0157 inch but the same gauge standard steel sheet metal measures 0 0120 inch and 30 gauge stainless steel measures 0 0125 inch. The manufacturers standard gage provides the thicknesses for standard steel galvanized steel and stainless steel.

But iron presents the greatest value compared to other components such as carbon. You can find the gauge to mm inch conversion for sheet metal by the chart below. Unfortunately there is considerable variation in the use of different gages. For example in one gauge system 18 gauge steel measures 0 0478 inches thick but 18 gauge aluminum is 0 0403 inches thick.