The composite coatings of Sn-PbMo6S8 (PbMo6S8 content 28-88 wt.%), Sn-NbCxNy (NbCxNy content 10-88 wt.%) and Sn-Ti0.63Nb0.34C0.38N0.58 (Ti0.63Nb0.34C0.38N0.58 content 55-70 wt.%) were electrodeposited from potassium pyrophosphate Sn(IV) and Sn(LI) complex salt K-8[Sn(P2O7)(3)], K-6[Sn(P2O7)(2)] electrolytes containing cation active organic substances alkylbenzyltrimethylammonium (I) or alkyldiethanolbenzylammonium (II) chlorides. The structure of the composite coatings was dependent on the conditions of electrodeposition, the disperse phase content and the thermal treatment was investigated by means of scanning electron microscopy. It was determined that pores or crevices which may form, depending on the conditions of electrodeposition, can be prevented by means of a thermal treatment for 4-8 h at. 260, 280 and 310 degrees C. The composite coatings of Sn-PbMo6S8 obtained with a PbMo6S8 content > 54 wt.% are superconductive coatings. The Sn-Ti0.63Nb0.34C0.38N0.58 coatings are conductive coatings. The Sn-NbCxNy coatings are corrosion resistive coatings at a temperature of 40 +/- 10 degrees C and relative humidity of 98% The Sn-NbCxNy with NbCxNy content up to 30 wt.% are solderable coatings at a temperature of 310 degrees C.