is oil used in hot- and cold-rolling of ferrous and non-ferrous metals to facilitate feed of the metal between the work rolls, improve the plastic deformation of the metal, conduct heat from the metal, and extend the life of the work rolls. Because of the pressures involved, a rolling oil may be compounded (see compounded oil) or contain EP additives. In hot rolling, the oil may also be emulsifiable (see emulsion).

Also see aluminum rolling oil.