For example in one gauge system 18 gauge steel measures 0 0478 inches thick but 18 gauge aluminum is 0 0403 inches thick.
Aluminum sheet metal gauge metric.
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.
Sheet metal gauge size chart 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.
Gague are used to specify the thickness of a metal sheet.
This chart covers the common and uncommon sheet metal sizes for steel aluminum and galvanized steel.
Gague ga is a length measurement unit for diameters originating in north america and belongs to the browne sharpe metering system.
The gauge number 18 holds no relevance to the actual measurements.
These dimensions vary slightly between different materials such as stainless steel and aluminium but should be accurate enough for most everyday purposes.
When working with sheet metal the term gauge is often used.
For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter.
Use the chart below to convert standard gauge numbers in decimals of an inch for sheet steel aluminum and stainless steel.
Standard steel mm non ferrous aluminum mm galvanized steel mm 000000.