Pseudo-alloys possess series of the unique properties, allowing using them in many fields of engineering. These alloys represent systems in which the tungsten crystal phase is grouted by a bunch from alloy Cu-Ni or Fe-Ni. An often detail from these alloys fabricate by powder metallurgical techniques, but was brought up a question about electrochemical shaping of details from these alloys. Corrosion of alloys in sour, alkaline and neutral mediums is spotted by their basic component - tungsten. The connecting phase representing (for example, alloy ВНМ-3-2) a solid solution approximately consisting of 60% Ni and 40% Cu, that is on properties is closer to nickel, insignificantly affects corrosion rate of an alloy. Researches show that at treatment on direct current a nickel and copper with high efficiency dissolve in neutral solutions and are passivated in the alkaline. At tungsten treatment the inverse picture is observed. At anodic polarization of alloy ВНМ-3-2 in solution NaCl on the polarization curves two peaks are observed: the first corresponds to dissolution of tungsten, second - a binding phase. On a surface of the alloy dissolved at values of potentials, close to the second peak, is visible that in this case dissolve thin layers of a binding phase, baring a tungsten skeleton. In the field of the potentials following the second peak, all surface is blocked by a dense film of products of anodic dissolution of tungsten. Thus process is sharply retarded. In case of imitation of needling operations it is visible that in solution NaCl alloy practically does not dissolve, becoming covered by a dense passive film. Nickel dissolves with a current efficiency close to 100 %, and copper - with a current efficiency of 45-47 % at conversion on Cu +. At an alloy starts to dissolve the binding phase representing a solid solution of tungsten and copper in nickel. With increase in concentration of salt to 75-100 g/l the binding phase dissolves even more, baring grains of the carbide skeleton. Thus intensity of peaks of a binding phase decreases and intensity of peaks of skeleton amplifies. In an electrolyte on basis of NaOH the tungsten dissolution goes with a current efficiency ≈ 100 %. Copper dissolves with small speed, nickel practically does not dissolve, becoming covered by a passive film. In alkali the alloy dissolves with a current efficiency from 40 to 54 % (200 g/l). In this case the tungsten skeleton dissolves, baring thin layers of a binding phase (at concentration NaOH more than 100 g/l). Thereby the process of dissolution of an alloy as a whole is making difficult. Increases in speed of dissolution of an alloy, it is possible to achieve only in the two-component electrolyte containing both NaOH, and NaCl. In case of addition NaCl in a solution containing 100 g/l NaOH, the maximum - is observed at 100-125 g/l NaCl (in this case a current efficiency ≈ 85 %). Both phases of an alloy dissolve with close speeds. On the first piece of the curve (NaCl 0-100 g/l) removal is defined by behavior of the tungsten skeleton which in this case mainly dissolves. The binding phase simultaneously starts to dissolve. But at the further increase in concentration NaCl dissolution of a binding phase prevails, the tungsten phase dissolves more slowly, and speed of dissolution of an alloy as a whole falls.