Standard Thickness Steel Sheet

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Standard thickness steel sheet. Gague ga is a length measurement unit for diameters originating in north america and belongs to the browne sharpe metering system. A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. For the purpose of securing uniformity the following is established as the only standard gauge for sheet and plate iron and steel in the united states of america namely. Gauge to thickness chart click here for a printable pdf chart gauge.
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. Standard gauge number regardless. Heavier or 0037 inch thicker than the weight or thickness of the corresponding u s. The chart below can be used to determine the equivalent sheet thickness in inches or millimeters for a gauge number from the selected gauge size standard.
For example 18 gauge steel according to a gauge conversion chart is 0. Gauge is defined differently for ferrous iron based and non ferrous metals e g. Gauges are neither standard nor metric and the values are independent of those measurement systems. The galvanized sheet gauge is based on the u s.
Cold rolled steel sheet is essentially hot rolled steel that has been further processed to increase its strength and strength to weight ratio. Sheets ordered by gauge weight or thickness are subject to standard thickness and weight tolerances. Gauges are used to specify the thickness of a sheet metal. Standard specification for steel sheet and strip heavy thickness coils alloy drawing steel and structural steel hot rolled.
Thus a 10 gauge steel sheet which has a thickness of 0 1345 inches will weigh. Lastly a standard exists for zinc in which a higher gauge number indicates a thicker sheet. Number of gauge approximate thickness in fractions of an inch. In general cold rolled steel sheet can hold tighter tolerances than hot rolled when machined or otherwise fabricated and provides a better overall surface finish.
This is known as the manufacturers standard gage for sheet steel. Sheet metal thickness gauges for steel are based on a weight of 41 82 pounds per square foot per inch of thickness. When working with sheet metal the term gauge is often used. Standard steel in galvanized steel in stainless steel in aluminum brass.
Standard specification for steel sheet hot rolled carbon commercial structural and high strength low alloy and ultra high strength produced by twin roll casting process.