On the example porous ferric are considered particularities of physical mechanisms of plastic current of metallic material, stipulated by presence pores. Explored features deformed structures on macro, meso- and microlevels depending on porosity, changed in the interval from the compact condition before 40%, and degrees of deforming a steady-state compression, assigned from 3% before fracture. Discovered and quantitative described quick growing of rotary effects in the material when turning to high porosity to the condition, an mesolevel caused by the activation and bringing about changing the dominant mechanisms to plastic deformation.