Hot Rolled Sheet Metal Thickness Tolerance

Astm ansi mechanical steel sheet mechanical tolerances.

Hot rolled sheet metal 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. Of irregular shape the over thickness tolerances apply to the greatest width corresponding to the width ranges shown. Sheet metal guage tolerances during the rolling process the rollers bow slightly which results in the sheets being thinner on the edges. Hr hot rolled cr cold rolled sheet metal gage guage size chart carbon steel sheets.

Sheet metal thickness sheet metal is manufactured and delivered from the processing mill rolled to the standard thickness that you specify which is now metric. However the range of tolerance on hot rolled sheet is much wider than the range found on cold rolled sheet. Up to 0 3125 incl. As the metal sheet gets thinner between the rolls its speed increases.

The material is cooled by the use of oil which also acts as a lubricant during the rolling process. Mm t 3 16 1 40 3 16 1 40 t 3 8 9 52 3 8 9 52 t 19 05 19 05 t 1 25 40. The metal is rolled to the thickness of 0 5 3 mm in case of mild steel and 0 5 5 mm in case of stainless steel. Sheet metal gauge thickness chart 2019 10 24t01 36 33 00 00 when working with sheet metal the term gauge is often used.

Standard tolerances for cold rolled steel usually choosing material thickness is one of the first steps a designer takes when starting a project. Gague are used to specify the thickness of a metal sheet. The following charts give typical astm and ansi steel sheet mechanical tolerance ranges. 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.

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. Over 0 3125 to 0 4375 incl.