Two ultrahigh carbon steel (1.3%C UHCS) laminates containing one nineteen and the other twenty layers have been processed by roll bonding. The processing refines their respective microstructures, diminishing the grain size and the carbides which became spheroidized. The impact test absorbed energy for the laminates can be much higher than that absorbed for the monolithic UHC steel. Moreover, the absorbed energy values of the nineteen layer laminate were higher than those of mild steels and microalloyed steels. These outstanding absorbed energy values are obtained thanks to the role played by the laminate interfaces in controlling the impact properties of these materials.