RU96118108A - HIGH-STRENGTH TWO-PHASE STEEL PLATE WITH EXCELLENT IMPACT VISCOSITY AND WELDABILITY - Google Patents

HIGH-STRENGTH TWO-PHASE STEEL PLATE WITH EXCELLENT IMPACT VISCOSITY AND WELDABILITY

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Publication number
RU96118108A
RU96118108A RU96118108/02A RU96118108A RU96118108A RU 96118108 A RU96118108 A RU 96118108A RU 96118108/02 A RU96118108/02 A RU 96118108/02A RU 96118108 A RU96118108 A RU 96118108A RU 96118108 A RU96118108 A RU 96118108A
Authority
RU
Russia
Prior art keywords
temperature
steel
cooling
sheet
niobium
Prior art date
Application number
RU96118108/02A
Other languages
Russian (ru)
Other versions
RU2147040C1 (en
Inventor
Джейонг Ку
Реймеш Р. Хемраджани
Original Assignee
Экссон Рисерч энд Энджиниринг Компани
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/349,856 external-priority patent/US5531842A/en
Application filed by Экссон Рисерч энд Энджиниринг Компани filed Critical Экссон Рисерч энд Энджиниринг Компани
Publication of RU96118108A publication Critical patent/RU96118108A/en
Application granted granted Critical
Publication of RU2147040C1 publication Critical patent/RU2147040C1/en

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Claims (1)

1. Способ получения двухфазной стали, содержащей ферритную и мартенсит/бейнитную фазы и имеющей предел текучести по меньшей мере 689,4 МПа (100 ksi) после 1 - 3% деформации, который включает: а) нагрев стального слитка до температуры, достаточной для растворения по существу всех карбонитридов ванадия и ниобия; б) прокатку слитка и формование листа за один или более проходов до первого уменьшения объема при температуре рекристаллизации аустенита; в) прокатку листа за один или более проходов до второго уменьшения объема при температуре ниже температуры рекристаллизации аустенита, но выше температуры точки превращения A3r; г) последующее охлаждение прокатного листа до температуры между точкой превращения A3r и примерно 500oC; д) охлаждение в воде окончательно прокатанного листа до температуры ≤ 400oC.1. A method of producing a two-phase steel containing ferritic and martensite / bainitic phases and having a yield strength of at least 689.4 MPa (100 ksi) after 1-3% deformation, which includes: a) heating the steel ingot to a temperature sufficient to dissolve essentially all carbonitrides of vanadium and niobium; b) rolling the ingot and forming the sheet in one or more passes before the first volume reduction at the austenite recrystallization temperature; c) rolling the sheet in one or more passes before the second volume reduction at a temperature below the austenite recrystallization temperature, but above the transformation point A 3r ; g) the subsequent cooling of the rolled sheet to a temperature between the point of transformation A 3r and approximately 500 o C; d) cooling in water finally rolled sheet to a temperature of ≤ 400 o C. 2. Способ по п.1, отличающийся тем, что температура нагрева при выполнении операции (а) составляет примерно 1150 - 1250oC.2. The method according to claim 1, characterized in that the heating temperature when performing operation (a) is approximately 1150 - 1250 o C. 3. Способ по п. 1, отличающийся тем, что первое уменьшение объема при прокатке составляет примерно 30 - 70%; второе - примерно 30 - 70%. 3. The method according to p. 1, characterized in that the first volume reduction during rolling is approximately 30 - 70%; the second is about 30–70%. 4. Способ по п.1, отличающийся тем, что охлаждение при выполнении операции (г) проводят на воздухе. 4. The method according to claim 1, characterized in that the cooling during the operation (g) is carried out in air. 5. Способ по п.1, отличающийся тем, что охлаждение при выполнении операции (г) проводят до превращения стали в ферритную фазу на 20 - 60% по объему. 5. The method according to claim 1, characterized in that the cooling during the operation (g) is carried out before turning the steel into the ferritic phase at 20 - 60% by volume. 6. Способ по п.1, отличающийся тем, что операцию охлаждения (д) проводят при скорости по меньшей мере 25oC/c.6. The method according to claim 1, characterized in that the cooling operation (d) is carried out at a speed of at least 25 o C / c. 7. Способ по п.1, отличающийся тем, что лист формуют в кольцевой материал или трубу для трубопровода. 7. The method according to claim 1, characterized in that the sheet is molded into an annular material or pipe for the pipeline. 8. Способ по п.7, отличающийся тем, что кольцевой материал или трубу для трубопровода расширяют на 1 - 3%. 8. The method according to p. 7, characterized in that the annular material or pipe for the pipeline expand by 1 - 3%. 9. Способ по п.1, отличающийся тем, что сталь имеет следующий химический состав, мас.%:
C - 0,05 - 0,12
Si - 0,01 - 0,50
Mn - 0,40 - 2,0
Nb - 0,03 - 0,12
V - 0,05 - 0,15
Mo - 0,2 - 0,8
Ti - 0,015 - 0,03
Al - 0,01 - 0,03
Pcm - ≤ 0,24
Fe - Остальное
10. Способ по п.9, отличающийся тем, что сумма концентраций ванадия и ниобия составляет ≥ 0,1% по массе.9. The method according to claim 1, characterized in that the steel has the following chemical composition, wt.%:
C - 0.05 - 0.12
Si - 0.01 - 0.50
Mn - 0.40 - 2.0
Nb - 0.03 - 0.12
V - 0.05 - 0.15
Mo - 0.2 - 0.8
Ti - 0.015 - 0.03
Al - 0.01 - 0.03
P cm - ≤ 0,24
Fe - Rest
10. The method according to claim 9, characterized in that the sum of the concentrations of vanadium and niobium is ≥ 0.1% by mass. 11. Способ по п.9, отличающийся тем, что концентрации ванадия и ниобия в отдельности составляют ≥ 0,04%. 11. The method according to claim 9, characterized in that the concentrations of vanadium and niobium separately are ≥ 0.04%. 12. Способ по п. 9, отличающийся тем, что сталь содержит 0,3 - 1,0% хрома. 12. The method according to p. 9, characterized in that the steel contains 0.3 - 1.0% chromium.
RU96118108A 1994-12-06 1995-12-01 High-strength two-phase steel plate with increased rigidity and welding suitability RU2147040C1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/349,856 1994-12-06
US08/349,856 US5531842A (en) 1994-12-06 1994-12-06 Method of preparing a high strength dual phase steel plate with superior toughness and weldability (LAW219)
PCT/US1995/015725 WO1996017965A1 (en) 1994-12-06 1995-12-01 Method of making dual phase steel plate

Publications (2)

Publication Number Publication Date
RU96118108A true RU96118108A (en) 1998-12-20
RU2147040C1 RU2147040C1 (en) 2000-03-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU96118108A RU2147040C1 (en) 1994-12-06 1995-12-01 High-strength two-phase steel plate with increased rigidity and welding suitability

Country Status (11)

Country Link
US (1) US5531842A (en)
EP (1) EP0742841B1 (en)
JP (1) JP3990725B2 (en)
CN (1) CN1060814C (en)
BR (1) BR9506729A (en)
CA (1) CA2182813C (en)
DE (1) DE69522315T2 (en)
MX (1) MX9603234A (en)
RU (1) RU2147040C1 (en)
UA (1) UA44265C2 (en)
WO (1) WO1996017965A1 (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5900075A (en) * 1994-12-06 1999-05-04 Exxon Research And Engineering Co. Ultra high strength, secondary hardening steels with superior toughness and weldability
DE19639062A1 (en) * 1996-09-16 1998-03-26 Mannesmann Ag Model-based process for the controlled cooling of hot strip or heavy plate in a computer-controlled rolling and cooling process
JPH10237583A (en) 1997-02-27 1998-09-08 Sumitomo Metal Ind Ltd High tensile strength steel and its production
DZ2528A1 (en) * 1997-06-20 2003-02-01 Exxon Production Research Co Container for the storage of pressurized liquefied natural gas and a process for the transport of pressurized liquefied natural gas and natural gas treatment system to produce liquefied natural gas under pressure.
TW359736B (en) * 1997-06-20 1999-06-01 Exxon Production Research Co Systems for vehicular, land-based distribution of liquefied natural gas
TW396254B (en) 1997-06-20 2000-07-01 Exxon Production Research Co Pipeline distribution network systems for transportation of liquefied natural gas
TW444109B (en) 1997-06-20 2001-07-01 Exxon Production Research Co LNG fuel storage and delivery systems for natural gas powered vehicles
ATE330040T1 (en) 1997-07-28 2006-07-15 Exxonmobil Upstream Res Co ULTRA HIGH STRENGTH WELDABLE STEELS WITH EXCELLENT ULTRA LOW TEMPERATURE TOUGHNESS
US6228183B1 (en) 1997-07-28 2001-05-08 Exxonmobil Upstream Research Company Ultra-high strength, weldable, boron-containing steels with superior toughness
ES2251096T3 (en) * 1997-07-28 2006-04-16 Exxonmobil Upstream Research Company HYPERERRISTLY STEELS ESSENTIALLY BORO FREE, SOLDABLE WITH HIGHER TENACITY.
KR100386767B1 (en) * 1997-07-28 2003-06-09 닛폰 스틸 가부시키가이샤 Method for producing ultra-high strength, weldable steels with superior toughness
US6254698B1 (en) * 1997-12-19 2001-07-03 Exxonmobile Upstream Research Company Ultra-high strength ausaged steels with excellent cryogenic temperature toughness and method of making thereof
DZ2527A1 (en) * 1997-12-19 2003-02-01 Exxon Production Research Co Container parts and processing lines capable of containing and transporting fluids at cryogenic temperatures.
DZ2530A1 (en) 1997-12-19 2003-02-01 Exxon Production Research Co Process for the preparation of a steel sheet, this steel sheet and process for strengthening the resistance to the propagation of cracks in a steel sheet.
US6159312A (en) * 1997-12-19 2000-12-12 Exxonmobil Upstream Research Company Ultra-high strength triple phase steels with excellent cryogenic temperature toughness
DZ2531A1 (en) * 1997-12-19 2003-02-08 Exxon Production Research Co Process for the preparation of a double phase steel sheet, this sheet and process for strengthening the resistance to crack propagation.
NL1016042C2 (en) * 2000-08-29 2001-07-24 Corus Technology B V Hot rolled dual phase steel band for, e.g., automotive parts contains vanadium in place of chromium
JP4085583B2 (en) 2001-02-27 2008-05-14 Ｊｆｅスチール株式会社 High-strength cold-rolled galvanized steel sheet and method for producing the same
US6852175B2 (en) * 2001-11-27 2005-02-08 Exxonmobil Upstream Research Company High strength marine structures
JP2005525509A (en) 2001-11-27 2005-08-25 エクソンモービル アップストリーム リサーチ カンパニー CNG storage and delivery system for natural gas vehicles
WO2003066921A1 (en) 2002-02-07 2003-08-14 Jfe Steel Corporation High strength steel plate and method for production thereof
JP3869747B2 (en) * 2002-04-09 2007-01-17 新日本製鐵株式会社 High-strength steel plate, high-strength steel pipe and manufacturing method excellent in deformation performance
EP1767659A1 (en) 2005-09-21 2007-03-28 ARCELOR France Method of manufacturing multi phase microstructured steel piece
DE102006054300A1 (en) * 2006-11-14 2008-05-15 Salzgitter Flachstahl Gmbh High-strength dual-phase steel with excellent forming properties
US20090301613A1 (en) 2007-08-30 2009-12-10 Jayoung Koo Low Yield Ratio Dual Phase Steel Linepipe with Superior Strain Aging Resistance
JP2009235460A (en) * 2008-03-26 2009-10-15 Sumitomo Metal Ind Ltd High-strength uoe steel pipe excellent in earthquake-proof performance and low-temperature toughness of weld heat-affected zone
FI20095528A (en) * 2009-05-11 2010-11-12 Rautaruukki Oyj Process for producing a hot rolled strip steel product and hot rolled strip steel product
FI20115702L (en) * 2011-07-01 2013-01-02 Rautaruukki Oyj METHOD FOR PRODUCING HIGH-STRENGTH STRUCTURAL STEEL AND HIGH-STRENGTH STRUCTURAL STEEL
CA2843180C (en) * 2011-07-29 2017-08-22 Nippon Steel & Sumitomo Metal Corporation High strength steel sheet and high strength galvanized steel sheet excellent in shapeability and methods of production of same
JP5608280B1 (en) * 2013-10-21 2014-10-15 大同工業株式会社 Chain bearing, its manufacturing method, and chain using the same
WO2023135550A1 (en) 2022-01-13 2023-07-20 Tata Steel Limited Cold rolled low carbon microalloyed steel and method of manufacturing thereof
CN114657458B (en) * 2022-02-18 2022-10-25 山东钢铁集团日照有限公司 Crude oil storage tank steel plate for large-thickness high-strength high-toughness high-heat input welding and preparation method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860456A (en) * 1973-05-31 1975-01-14 United States Steel Corp Hot-rolled high-strength low-alloy steel and process for producing same
US4273838A (en) * 1976-03-08 1981-06-16 Combustion Engineering, Inc. Weld metal resistant to neutron-bombardment embrittlement
JPS609086B2 (en) * 1981-02-14 1985-03-07 川崎製鉄株式会社 Manufacturing method of high toughness and high tensile strength steel
JPS57152421A (en) * 1981-03-17 1982-09-20 Kawasaki Steel Corp Production of high-tensile hot-rolled steel plate having composite structure of ferrite and martensite
JPS5834131A (en) * 1981-08-25 1983-02-28 Kawasaki Steel Corp Production of nonrefined high tensile steel plate having excellent toughness and weldability
JPS59100214A (en) * 1982-11-29 1984-06-09 Nippon Kokan Kk <Nkk> Production of thick walled high tension steel
JPS60177128A (en) * 1984-02-24 1985-09-11 Nippon Kokan Kk <Nkk> Production of 50-kg/cm2 class steel having excellent resistance to corrosion fatigue for oceanic structure
JP3035040B2 (en) * 1991-11-01 2000-04-17 株式会社神戸製鋼所 Composite structure bake hardening steel sheet with excellent deep drawability

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