Ga Size Sheet Metal
Corresponds to the standard steel thickness of 0 0329 inches 0 84mm.
Ga size sheet metal. The story of gauge. Sheet metal knowledge menu sheet metal manufacturing and services. Gague ga is a length measurement unit for diameters originating in north america and belongs to the browne sharpe metering system. Gauge or gage sizes are numbers that indicate the thickness of a piece of sheet metal with a higher number referring to a thinner sheet.
For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter. The corresponding galvanized steel thickness is 0 0366 inches 0 93mm and the corresponding aluminum thickness is 0 028 inches 0 71mm. The thickness of sheet metal is commonly specified by a traditional non linear measure known as its gauge. The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material.
Metal gauges below you ll find the info you need with our sheet steel stainless steel and aluminum sheet metal charts. A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. Gague are used to specify the thickness of a metal sheet. The gauge number 18 holds no relevance to the actual measurements.
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 meaning.