Mild Steel Plate Thickness Tolerance

During the rolling process the rollers bow slightly which results in the sheets being thinner on the edges.

Mild steel plate thickness tolerance.

254 0 mm excl in thickness the tolerance under the specified thickness is 0 010 in. Also known as mild steel low carbon steel is easy to machine form and weld. A gauge conversion chart can be used to determine the actual thickness of sheet metal in inches or millimeters. 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.

W 7 85 t 2 where. Sheet metal guage tolerances. For example 18 gauge steel according to a gauge conversion chart is 0 0478 inch or 1 214 millimeter. Special flatness tolerances class s.

W weight of steel plate kg m 2 t plate thickness mm steel plate weight calculator metric units. Width mm length mm thickness mm density kg m 3. 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. 9 52 mm but not more than 3 in.

Meter of hot rolled mild steel plates can be calculated as. B for plates up to 10 in. The permissible under thickness is 0 3 mm for all dimensions. These precision ground sheets and bars are held to a tight thickness tolerance.

A thickness is measured along the longitudinal edges of the plate at least 3 8 in. Tolerance under specified thickness 010 x 3 4 x 52 wide plate for example would have a tolerance range of 740 780 because of tolerances ie thickness flatness and camber as well as the hot roll condition astm a36 generally does not finish to specified thickness. Steel sheets and plates are typical stocked as size 2000 mm x 3000 mm. Actual thickness will vary due to tolerances.

Highlighted red area refers to plates produced in their flat form for which the listed tolerances are only the over thickness tolerance. Thickness is measured at any point more than 25mm from any edge excluding ground areas. It s often used as wear strips liners and deflector plates. For thicknesses tolerances applicable where the surface was repaired by grinding refer to en 10163 2 delivery requirements for surface condition of hot rolled steel plates.

Tight tolerance multipurpose oil hardening o1 tool steel. For steel type l a maximum of 1 and for steel type h a maximum of 1 5 of the distance between points of contact on the plate between 300 and 1000mm but not exceeding the values in the above table.