Galvanized Sheet Metal Standard Thickness

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Galvanized sheet metal standard thickness. The two most common metals used for ductwork are aluminum and galvanized steel and the requirements for both are listed in the international mechanical. And astma653 a653m 94 standard specification for sheet steel zinc coat galvanized or zinc iron alloy coated galvanized by the hot dip process. It is a coating thickness designation in the galvanizing specification astm a653. Gauge and weight chart for sheet steel galvanized steel stainless steel aluminum and strip tubing sponsored links wire gauge is a measure for the size of a wire either in diameter or in cross sectional area.

Sheet metal gauge thickness chart 2019 10 24t01 36 33 00 00 when working with sheet metal the term gauge is often used. 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. Gauge to thickness chart. The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material.

For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter. Astm a123 standard specification of zinc hot dip galvanized coatings on iron and steel products refers to products fabricated and then hot dip galvanized. The gauge number 18 holds no relevance to the actual measurements. This specification is for hot dip galvanizing steel sheet using the continuous high speed galvanizing process.

These measurements are based on astm a924 924m 94 standard specification for general requirements for sheet steel metallic coated by the hot dip process formerly astma525. A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. 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 29 0 0141 0 36 0 0172 0 44 0 0135 0 34 0 0113 0 29 28 1 64 0 0156 0 41 0 0187 0 47 0 0149 0 38 0 0126 0 32 27 0 0172 0 43 0 0202 0 51 0 0164 0 42 0 0142 0 36 26 0 0187 0 48 0 0217 0 55 0 0179 0 45 0 0159 40 25 0 0219 0 56 0 0247 0 63 0 0209 0 53 0 0179 0 46 24 0. Sheet metal thickness gauges for steel are based on a weight of 41 82 pounds per square foot per inch of thickness.

G90 is not a galvanizing specification. Gague are used to specify the thickness of a metal sheet.