Standard Steel Sheet Metal Gauges

The manufacturers standard gage provides the thicknesses for standard steel galvanized steel and stainless steel.

Standard steel sheet metal gauges.

The larger the gauge number the thinner the metal. For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter. A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. Commonly used steel sheet metal ranges from 30 gauge to about 7 gauge.

Gauges are neither standard nor metric and the values are independent of those measurement systems. Sheet metal thickness gauges for steel are based on a weight of 41 82 pounds per square foot per inch of thickness. Standard gauges of sheet metal chart. 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.

In the u s the thickness of sheet metal is commonly specified by a traditional non linear measure known as its gauge. This is known as the manufacturers standard gage for sheet steel. 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. Please note that astm states in specification astm a480 10a the use of gage number is discouraged as being an archaic term of limited usefulness not having general agreement on.

For other materials such as aluminum and brass the thicknesses will be different. Standard gauge for sheet and plate iron and steel.