Gauge is defined differently for ferrous iron based and non ferrous metals e g.
Average sheet metal thickness.
Manufacturers standard gauge for sheet steel is based on an average density of 41 82 lb per square foot per inch thick equivalent to 501 84 pounds per cubic foot 8 038 7 kg m 3.
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.
Kynar galvalume steel for metal roofing and gutters.
For example 3 gauge steel is 0 2391 inches thick while a sheet of 3 gauge zinc is 0 006 inches thick.
A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters.
0 7 mm 0 8mm and 1 5 mm.
0 027 or 0 032 for seamless gutters and any other thickness for custom gutters.
For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter.
This is known as the manufacturers standard gage for sheet steel.
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Gague are used to specify the thickness of a metal sheet.
Sheet metal measuring tools.
For other materials such as aluminum and brass the thicknesses will be different.
The gauge number 18 holds no relevance to the actual measurements.
Sheet metal gauge thickness chart 2019 10 24t01 36 33 00 00 when working with sheet metal the term gauge is often used.
Gauge to thickness chart.
Gauge to thickness chart.
The two most common metals used for ductwork are aluminum and galvanized steel and the requirements for both are listed in the international mechanical.
Gauge stainless galvanized sheet steel aluminum fraction inches mm inches mm inches mm inches mm 30 0 0125 0 33 0 0157 0 40 0 0120 0 30 0 0100 0 25 29 0 0141 0 36 0 0172 0 44 0 0135 0 34 0 0113 0 29 28 1 64 0 0156 0 41 0 0187 0 47 0 0149 0 38 0 0126 0 32 27 0 0172 0 43 0 0202 0 51 0 0164 0 42 0 0142 0 36 26 0 0187 0 48 0 0217 0 55 0 0179 0 45 0 0159 40 25 0 0219 0 56 0 0247 0 63 0 0209.
20 gauge became common in more recent times and this meant 0 0359 inch thick metal still a lot to work with in bumping and metal finishing.
The standard thickness of sheet metal depends on the gauge and the type of metal.