Galvanized Sheet Metal Thickness Tolerance

Galvanized sheet thickness tolerances thickness in inches weight thickness in millimeters gage min.

Galvanized sheet metal thickness tolerance.

Thickness inches thickness inches galvanized galvannealed aluminized sheet. As a registered iso 9001 2015 company rolled steel products state of the art equipment meets virtually any requirement in panel flat quality leveling precision slitting close tolerance sheet blanking strip quality edge conditioning precision shearing and complete cold reducing capabilities. 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. A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters.

Sheet metal thickness is denoted by gauge sometimes spelled gage which indicates a standard thickness before processing. Sheet metal is manufactured and delivered from the processing mill rolled to the standard thickness that you specify which is now metric. Conversion data chart standard gauges chart gauge tolerance chart useful data page. All other gauges tolerances shown are for width over 32 to 60 inclusive.

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. Gauges 10 11 12 tolerances shown are for widths over 40 to 60 inclusive. However the range of tolerance on hot rolled sheet is much wider than the range found on cold rolled sheet. During the rolling process the rollers bow slightly which results in the sheets being thinner on the edges.

Both types of steel sheet have tolerance ranges. Sheet metal guage tolerances. And astma653 a653m 94 standard specification for sheet steel zinc coat galvanized or zinc iron alloy coated galvanized by the hot dip process. Aisi thickness tolerance ranges galvanized steel sheets thinkness.

Processing may include polishing or the applying of protective plastics which will decrease or increase a sheet s thickness respectively. For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter. 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.