Using a hydraulic press flat samples prepared from magnesium alloy for static tensile test while using the probe emitting sound waves. The samples were cut from a sheet of magnesium alloy AZ31 along the rolling direction. The study of static tensile tests showed no effect of ultrasound waves on the elongation and tensile strength of the samples. This could be the result of improper, transverse to the sample, the direction of application of the source of acoustic waves.