The results of study of phase composition, structure and properties of multi-component complex alloyed wear-resistant brass are presented. Material contains aluminium, manganese, silicon, nickel and chromium besides copper and zinc. A review on influence of these components on formation of intermetallics with different chemical composition and morphology is made. On the basis of analysis it is revealed that wear resistance ofbrass is highly dependent on the ratio of α- and ß-phases and volume fraction of intermetallic particles. Chemical X-ray fluorescence, scanning electron microscopy (SEM) and electron-probe microanalysis (EPMA) are used. On the basis of experiments it is established that alloys without chromium contain rod-shaped intermetallics based on Mn-Si compound with a ratio of length to cross sectional dimension 2...4; these intermetallics create the effect of anisotropy in alloy. Presence of chromium in alloy leads to formation of equiaxial intermetallics with a chromium silicide core and manganese silicide coat; in this case the alloy is isotropic. It is established by metallographic study that a density of distribution of intermetallic compounds 50...130 thousand particles per 1 mm3 is required to archive a hardness of brass 291...298 HB. Cast ingots are made by semi-casting method and then pressed to tube bars; finished products are made by stamping so, production technology can improve mechanical characteristics of alloy.