CR sheet is cold rolled steel manufactured by drawing from HR coils. They are manufactured below 740 degree Celsius. Look-wise they are white Shiny silver-colour with oil on the surface. They are also represented by the thickness of the sheet. They are available in coil-form or bundle-form.

HR Sheets are Hot Rolled Sheets cut from hot-rolled coil of thickness starting from 1.2mm to 4mm (above 4mm it is called as Plates). Sheets are generally represented by thickness of sheet. For e.g. 2mm sheet means, Thickness of sheet = 2mm. HR Sheet is Black in color either available in Coil-form or Bundle-form. Following are the various sizes of HR Sheets in terms of Thickness:- As per British Standards thickness used to be represented by Gauge (G).