Aluminum Sheet Metal Thickness Tolerance Standard

An aluminum sheet metal thickness refers to the thickness of an aluminium sheets a flat square or rectangle piece of aluminum material with a thickness of between 0 2mm and 500mm a width of 200mm some are even 50mm and above and more and a length of 16m or less.

Aluminum sheet metal thickness tolerance standard.

A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. General information of aluminum sheet thickness. Astm a240 a480 steel sheet sthickness tolerance. This is known as the manufacturers standard gage for sheet steel.

For example 18 gauge steel according to a gauge conversion chart is 0. The tolerances in the table and attachments reflect current manufacturing practices and commercial standards and are not representative of the manufacturer s standard gauge which has no inherent tolerances. Sheet metal is manufactured and delivered from the processing mill rolled to the standard thickness that you specify which is now metric. Thickness 36 48 60 title.

Gauges are used to specify the thickness of a sheet metal. Sheet metal thickness gauges for steel are based on a weight of 41 82 pounds per square foot per inch of thickness. The sheet metal does however have a tolerance on the rolling thickness which needs to be taken into account when designing a tight fitting assembly especially as the sheet metal material gets thicker. Astm a480hot rolled sheet coil thickness tolerance.

Gauges are neither standard nor metric and the values are independent of those measurement systems. Deviation allowed for the specified width. For other materials such as aluminum and brass the thicknesses will be different. Gauge to thickness chart 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.

Thus a 10 gauge steel sheet which has a thickness of 0 1345 inches will weigh. Tolerance in. Standard tolerances for aluminum usually choosing material thickness is one of the first steps a designer takes when starting a project. During the rolling process the rollers bow slightly which results in the sheets being thinner on the edges.

The aluminum sheet metal thickness can be divided into four categories. We work with nominal thicknesses so it s important to know the thickness tolerance on the material you chose in order to know if the final product will be suitable for your application. Specified width in. Aluminum sheet thickness tolerances xls author.