A 1 mm thick cylindrical tube, 100 mm in diameter, is orthogonally turned such that the entire wall thickness of the tube is cut in a single pass. The axial feed of the tool is 1 m/minute and the specific cutting energy (u) of the tube material is 6 J/mm3 . Neglect contribution of feed force towards power. The power required to carry out this operation is _________ kW (round off to one decimal place).