Steel Sheet Metal Gauge Thickness Tolerance

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Steel sheet metal gauge thickness tolerance.

In the u s the thickness of sheet metal is commonly specified by a traditional non linear measure known as its gauge. 1250 mm wide sheet metal. Gauge differs between ferrous iron based metals and nonferrous metals such as aluminum or copper. During the rolling process the rollers bow slightly which results in the sheets being thinner on the edges.

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. The larger the gauge number the thinner the metal. At american metal supply we provide the chart to calculate thickness and sheet tolerance in inches and the weight for various gauges. 1000 mm wide sheet metal.

A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. The following charts give typical astm and ansi steel sheet mechanical tolerance ranges. 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 guage tolerances. Thickness tolerance in mm or for given width in mm. For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter.