Hot Rolled Sheet Metal Thickness Tolerance

Standard tolerances for cold rolled steel usually choosing material thickness is one of the first steps a designer takes when starting a project.

Hot rolled sheet metal thickness tolerance.

Over 0 3125 to 0 4375 incl. Astm ansi mechanical steel sheet mechanical tolerances. Hr hot rolled cr cold rolled sheet metal gage guage size chart carbon steel sheets. Of irregular shape the over thickness tolerances apply to the greatest width corresponding to the width ranges shown.

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. Sheet metal guage tolerances during the rolling process the rollers bow slightly which results in the sheets being thinner on the edges. Permitted variations in thickness of hot rolled mill plate quarto plate a b specified thickness t in.

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. Up to 0 3125 incl. Gague are used to specify the thickness of a metal sheet. Sheet metal gauge thickness chart 2019 10 24t01 36 33 00 00 when working with sheet metal the term gauge is often used.

The material is cooled by the use of oil which also acts as a lubricant during the rolling process. The following charts give typical astm and ansi steel sheet mechanical tolerance ranges. We work with nominal thicknesses so it s important to know the thickness tolerance on the material you chose in order to know if the final product will be suitable for your application. 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.

Both types of steel sheet have tolerance ranges. However the range of tolerance on hot rolled sheet is much wider than the range found on cold rolled sheet.