Results of experiments on metal chip crushing and other light scrap at industrial rotary jet mills developed in LLC «New technologies – engineering» (St. Petersburg) are resulted. Problems of high efficiency mills creation and maintenance of crushing in the inert media are solved. The wide spectrum of metals is investigated. Possible spheres of powders application are analyzed. The paper shows, that it is possible to produce from a powder the materials with porosity of ~50 % with use of electropulse technology.