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2 195 504

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IPC

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Application

2000129537/02, 2000-11-24

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Start date

2000-11-24

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Actual filing date

2000-11-24

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Published

2002-12-27

(72)

Inventor

D'Jakonova V.S.Lamukhin A.M.Golovanov A.V.Glukhov V.V.Dobrjakov V.S.Latysheva T.O.Rjabinkova V.K.Trajno A.I.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

METHOD FOR MANUFACTURE OF STRIPS FROM LOW-ALLOY NIOBIUM-VANADIUM STEEL Russian patent published in 2002 - IPC

Abstract RU 2195504 C2

FIELD: metallurgy. SUBSTANCE: method involves providing hot rolling of strips with regulated temperature at final rolling stage; cooling and winding strips into rolls. Temperature at final rolling stage is maintained within the range of 840-880 C. Strips are wound into rolls at temperature of 620-650 C with following cooling to ambient temperature for 71-120 hours. Strips are manufactured on continuous wide strip mill and are used for production of pipes for main oil and gas pipelines. EFFECT: improved toughness and resistance to sulfide stress cracking. 2 tbl

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RU 2 195 504 C2

Authors

D'Jakonova V.S.

Lamukhin A.M.

Golovanov A.V.

Glukhov V.V.

Dobrjakov V.S.

Latysheva T.O.

Rjabinkova V.K.

Trajno A.I.

Dates

2002-12-27—Published

2000-11-24—Filed