Hot Rolled Sheet Metal Thickness Tolerance

The steel cools.

Hot rolled sheet metal thickness tolerance.

However this cannot be said about cold rolled sheet and hot rolled sheet. Some metal forming processes allow for more precision than others. 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. With these two products the cold rolled product has low carbon content and it is typically annealed making it softer than hot rolled sheet.

Dimensional tolerances are usually 2 to 5 of the overall dimension. During the rolling process the rollers bow slightly which results in the sheets being thinner on the edges. Gague are used to specify the thickness of a metal sheet. This keeps the market price of hot rolled steel lower.

Also for similar metals hot rolled products seem to be less costly than cold rolled ones. 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 gauge thickness chart 2019 10 24t01 36 33 00 00 when working with sheet metal the term gauge is often used. Conversion data chart standard gauges chart gauge tolerance chart useful data page.

Hot rolled mild steel seems to have a wider tolerance for amount of included carbon than does cold rolled steel and is therefore more difficult for a blacksmith to use. Continuous rolling gives the desired final shape a metal sheet 3 mm and upwards or profile. An example of this can be found with hot rolled and cold rolled metal. Sheet metal is manufactured and delivered from the processing mill rolled to the standard thickness that you specify which is now metric.

Any project where tolerances surface condition concentricity and straightness are the major factors. Hot rolled steel starts as a large rectangular length of metal called a billet. 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. The billet is first heated and then pre processed where it is.

Sheet metal guage tolerances.