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The mean field model has been used to analyze the hysteresis loops in textured and strained steel. We observe an increase of the pinning constant with plastic deformation and a strong variation of the pinning parameter in various directions in Fe‐Si steel. The interpretation of changes of the pinning parameter is related to the dislocation density for deformed specimens. It has also been demonstrated that in textured Fe‐Si steel the changes in the mean value of magnetocrystalline energy follow closely the observed changes of the pinning parameter.