METHOD OF MANUFACTURING PIPES FROM CARBON STEEL

FIELD: manufacture of high-strength oil application pipes resistant to sulfide corrosion cracking. SUBSTANCE: method includes pipe rolling at 850-930 C, cooling from temperature of rolling end in water for 1-2 s down to temperature of 630-670 C, repeated heating up to 780-830 C with subsequent cooli...

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Main Authors POPOVTSEV JU.A, GREKHOV A.I, MARCHENKO L.G, KRIVOSHEEVA ANTONINA ANDREEVNA, ORLOV V.A, BRIZHAN A.I, ZHUKOVA S.JU, TETJUEVA T.V, USOV V.A, SHEPELEV A.V
Format Patent
LanguageEnglish
Published 20.06.1999
Edition6
Subjects
CHEMISTRY
GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS
MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS
METALLURGY
METALLURGY OF IRON
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Summary:FIELD: manufacture of high-strength oil application pipes resistant to sulfide corrosion cracking. SUBSTANCE: method includes pipe rolling at 850-930 C, cooling from temperature of rolling end in water for 1-2 s down to temperature of 630-670 C, repeated heating up to 780-830 C with subsequent cooling in water and tempering at 650-720 C. EFFECT: higher strength properties of pipes and their resistance to sulfide corrosion cracking. 2 cl, 1 tbl
Bibliography:Application Number: RU19980111927