Abstract A study of magnetic interactions and magnetization reversal at room temperature in hybrid magnets consisting of micrometrics particles of strontium ferrite and Magnequench MQP-Q alloy was carried out. Materials with three different compositions were considered. These materials present different intensity of coupling between their components. In each case, the evolution of the DCD reversible ( M rev ) and irreversible ( M irr ) magnetization components during the magnetization and the demagnetization processes was determined. M rev ( M irr ) H i curves were built, being H i the internal field of the sample. In order to investigate the nature of the magnetic interactions between the different grains, a study of the δM d ( H i ) plots was developed. The experimental behavior of the M rev ( M irr ) H i curves suggest the existence of a complex non-uniform mechanism for the magnetization reversal in these materials. The δM d ( H i ) plots shown a notable predominance of the demagnetizing-like magnetostatic interactions.