Steel Sheet Metal Gauge Thickness Tolerance

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.
Steel sheet metal gauge thickness tolerance. For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter. The following charts give typical astm and ansi steel sheet mechanical tolerance ranges. Contact us to know more about our reference chart in cincinnati louisville. Hr hot rolled cr cold rolled sheet metal gage guage size chart carbon steel sheets.
Commonly used steel sheet metal ranges from 30 gauge to about 7 gauge. 1250 mm wide sheet metal. 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. At american metal supply we provide the chart to calculate thickness and sheet tolerance in inches and the weight for various gauges.
4 2242 2332 2152. A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. Thickness tolerance in mm or for given width in mm. 1000 mm wide sheet metal.
Gauge differs between ferrous iron based metals and nonferrous metals such as aluminum or copper. The larger the gauge number the thinner the metal. Gauges are neither standard nor metric and the values are independent of those measurement systems.