Corps details from the second aluminium alloys are the obiect of researches alloys. Prognostication of properties of corps of gіdrona- is the purpose of to the sosіv type NSh, made from the second alloys, for vikori - stannya at renewal and technical service rural - economic technique which differs by the period of issue and has a different remaining resours. Research methods and apparatus: optical that electronic microscopy (MIM-8М), spectral, rentgenostrukturniy but chemical analyses (DRON 3М), estimation of mikrotverd (PMT), test on tearing down (MI-1М). he operating tests of picked up thread are executed details. Material is offered, communication of chemical is set composition of pervichnih, second and mixed alloys with it is pecul styami corps of gіdronasosіv. Possibility of vigotovlen is shown - nya corps of gіdronasosіv from the second alloys of aluminium with by the assured level of narobіtku, a resource is appraised. Developme are inculcated on Peresichanskomu RTP, a general economic effectefetkt made 32,77 tis.grn. Sphere of the use - repair production of spare details from the second aluminiums alloys.