Abstract: A bumper beam for motor vehicles includes vertical front and rear plates made of at least one metallic material. At least one elongated core made of metallic material is positioned between the two sole plates. An energy absorber is located at each end of the core and formed of a metallic hollow body, the energy absorber being positioned at right angles to the sole plates or to the core. The metallic materials of the core and the energy absorber have a ratio of elastic limit to breaking stress that is lower than that of the sole plate metallic material and lower than 0.9.