METHOD OF PRODUCTION OF STEEL WIRE CORROSIONPROOF IN PRESENCE OF HYDROGEN SULFIDE, WIRE AND FLEXIBLE MEMBER Russian patent published in 1997 - IPC

FIELD: steel wire for manufacture of flexible pipelines corrosionproof in presence of hydrogen sulfide (H₂S), and also flexible pipelines made with the help of the wire; methods of production of this steel wire to impact corrosion resistance to it in the medium of hydrogen sulfide. SUBSTANCE: to obtain the preset parameters of deformed initial wire, heat treatment is carried out under such conditions of temperature and duration as to ensure breaking strength above 850 MPa and structure containing low amount of free ferrite. EFFECT: higher efficiency. 23 cl, 20 dwg, 1 tbl