Galvanized Steel Sheet Thickness Tolerance

Both types of steel sheet have tolerance ranges.

Galvanized steel sheet thickness tolerance.

Sheet metal guage tolerances during the rolling process the rollers bow slightly which results in the sheets being thinner on the edges. Galvanized sheet thickness tolerances thickness in inches weight thickness in millimeters gage min. A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. 10 1382 1472 1292.

Tolerances shown are for 48 wide sheets. Hr hot rolled cr cold rolled. Conversion data chart standard gauges chart gauge tolerance chart useful data page. The following charts give typical astm and ansi steel sheet mechanical tolerance ranges.

The range of the tolerance minimum thickness to maximum thickness in each gauge range decreases as the sheet material becomes thinner on its nominal or mean thickness. 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. Continuous sheet galvanized coating specifications english. However the range of tolerance on hot rolled sheet is much wider than the range found on cold rolled sheet.

Weights are based on ordered thickness at 41 82 lbs. Gauges 10 11 12 tolerances shown are for widths over 40 to 60 inclusive. Steel sheet thickness tolerances hot rolled h r p o cold rolled galvanized. Aisi thickness tolerance ranges galvanized steel sheets thinkness.

For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter. Actual thickness will vary due to tolerances. And astma653 a653m 94 standard specification for sheet steel zinc coat galvanized or zinc iron alloy coated galvanized by the hot dip process. Per square foot per inch thick.

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