Steel Sheet Thickness Tolerance

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.

Steel sheet thickness tolerance.

Stainless sheet thickness tolerances. During the rolling process the rollers bow slightly which results in the sheets being thinner on the edges. Thickness to be measured at 3 8 to 3 4 in. Tolerance under specified thickness 0 01 in.

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. For plates up to 10 inches excl in thickness the tolerance under the specified thickness is 0 010. Sheet metal guage tolerances. Astm a36 steel plate thickness tolerance.

Because of tolerances ie astm a36 steel plate thickness tolerance flatness and camber as well as the hot roll condition astm a36 steel plate generally does not finish to specified thickness. The flatness tolerance of of strip sheet plate and cut length shall not exceed 10mm for normal cases and 7mm where a special tolerance fs is required for length 3000mm and 12mm for normal cases and 8mm where a special tolerance fs is required for length 3000mm. Contact us to know more about our reference chart in cincinnati louisville. At american metal supply we provide the chart to calculate thickness and sheet tolerance in inches and the weight for various gauges.

4 20 2009 11 06 42 am. For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter. From the longitudinal edge. For thickness measured at any location other than that specified in note 2 the permissible maximum over tolerance shall be increased by 75 rounded to the nearest 0 01 in.

Stainless steel sheets sizes in stock. Sheet metal is manufactured and delivered from the processing mill rolled to the standard thickness that you specify which is now metric. The gauge number 18 holds no relevance to the actual measurements. Thickness is measured along the longitudinal edges of the plate at least 3 8inches but not more than 3 inches from the edge.

A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters.