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In this study, MD simulations of some face centred cubic (FCC) metals at nano-scale and under uniaxial tension were carried out. The effects of different loading rates of 5–200 m/s at constant temperature on the tensile behaviour and stress–strain curves were studied. The potential used in these simulations was Sutton-Chen many-body long-range potential. In addition, Velocity Verlet formulation of Nose-Hoover dynamic was applied in order to control the temperature fluctuations. Using periodic boundary conditions, the effects of loading rate on the mechanical-failure behaviour of Al, Ag, Cu and Ni were investigated. The maximum engineering stress, failure commencement strain and strain at the failure were evaluated at different loading rates. A correlation between the radius of local necking with the ductility, deformation and loading rate was established.