NO20003175L - Ultra-high strength steel with excellent toughness at cryogenic temperatures - Google Patents

Ultra-high strength steel with excellent toughness at cryogenic temperatures

Info

Publication number
NO20003175L
NO20003175L NO20003175A NO20003175A NO20003175L NO 20003175 L NO20003175 L NO 20003175L NO 20003175 A NO20003175 A NO 20003175A NO 20003175 A NO20003175 A NO 20003175A NO 20003175 L NO20003175 L NO 20003175L
Authority
NO
Norway
Prior art keywords
temperature
plate
austenite
quenching
plugs
Prior art date
Application number
NO20003175A
Other languages
Norwegian (no)
Other versions
NO20003175D0 (en
Inventor
Jayoung Koo
Narasimha-Rao V Bangaru
Original Assignee
Exxonmobil Upstream Res Co
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
Application filed by Exxonmobil Upstream Res Co filed Critical Exxonmobil Upstream Res Co
Publication of NO20003175L publication Critical patent/NO20003175L/en
Publication of NO20003175D0 publication Critical patent/NO20003175D0/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/001—Heat treatment of ferrous alloys containing Ni
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/02—Hardening by precipitation
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/002—Bainite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Arc Welding In General (AREA)

Abstract

Foreliggende oppfinnelse vedrører en ultrahøyfast, sveis- bar, lavlegert ståltype, inneholdende mindre enn 9 vekt% nikkel, som når sveiset har utmerket seighet i basisplaten og i den varmepåvirkede sone (HAZ) ved kryogeniske tempera- turer, og som har en strekkfasthet på mer enn 830 MPa (120 ksi) og en mikrostruktur omfattende hovedsakelig finkornet gittermartensitt og/eller finkornet lavere bainitt, prepa- reres ved oppvarming av en stålslabb omfattende jern og no- en av eller alle tilsetningsstoffene karbon, mangan, nik- kel, nitrogen, kopper, krom, molybden, silisium, niobium, vanadium, titan, aluminium og bor; reduksjon av slabben i ett eller flere stikk i et temperaturområde i hvilket aus- tenitt rekrystalliseres; sluttvalsing av platen i ett eller flere stikk i et temperaturområde under temperaturen for rekrystallisasjon av austenitt og over Ar3-omvandlings- temperaturen; bråkjøling av den sluttvalsede plate (10"') til en passende kjølestopptemperatur; stopping av bråkjø- lingen, og anløping av platen {10"') ved en passende tempe- ratur over et tidsrom som er tilstrekkelig til å forårsake utfelling av herdepartikler.The present invention relates to an ultra high-strength, weldable, low-alloy steel type containing less than 9% by weight of nickel, which when welded has excellent toughness in the base plate and in the heat affected zone (HAZ) at cryogenic temperatures, and which has a tensile strength of more than 830 MPa (120 ksi) and a microstructure comprising mainly fine-grained lattice martensite and / or fine-grained lower bainite, prepared by heating a steel slab comprising iron and any or all of the additives carbon, manganese, nickel, nitrogen, copper , chromium, molybdenum, silicon, niobium, vanadium, titanium, aluminum and boron; reduction of the slab in one or more plugs in a temperature range in which austenite is recrystallized; final rolling of the plate in one or more plugs in a temperature range below the temperature for recrystallization of austenite and above the Ar3 conversion temperature; quenching the final rolled plate (10 "') to a suitable cooling stop temperature; stopping the quenching, and annealing the plate (10"') at a suitable temperature over a period of time sufficient to cause precipitation of curing particles.

NO20003175A 1997-12-19 2000-06-19 Ultra-high strength steel with excellent toughness at cryogenic temperatures NO20003175D0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6819497P 1997-12-19 1997-12-19
PCT/US1998/012702 WO1999032672A1 (en) 1997-12-19 1998-06-18 Ultra-high strength steels with excellent cryogenic temperature toughness

Publications (2)

Publication Number Publication Date
NO20003175L true NO20003175L (en) 2000-06-19
NO20003175D0 NO20003175D0 (en) 2000-06-19

Family

ID=22081023

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20003175A NO20003175D0 (en) 1997-12-19 2000-06-19 Ultra-high strength steel with excellent toughness at cryogenic temperatures

Country Status (30)

Country Link
EP (1) EP1047799A1 (en)
JP (1) JP2001527155A (en)
KR (1) KR20010024757A (en)
CN (1) CN1282381A (en)
AR (1) AR013108A1 (en)
AT (1) ATA915498A (en)
AU (1) AU8151198A (en)
BG (1) BG104622A (en)
BR (1) BR9813630A (en)
CA (1) CA2316968A1 (en)
CO (1) CO5050267A1 (en)
DE (1) DE19882879T1 (en)
DK (1) DK200000936A (en)
FI (1) FI20001438A (en)
GB (1) GB2348887A (en)
HR (1) HRP980346A2 (en)
HU (1) HUP0101125A3 (en)
IL (1) IL136842A0 (en)
NO (1) NO20003175D0 (en)
OA (1) OA11422A (en)
PE (1) PE93599A1 (en)
PL (1) PL342646A1 (en)
SE (1) SE0002245D0 (en)
SI (1) SI20278A (en)
SK (1) SK8682000A3 (en)
TN (1) TNSN98098A1 (en)
TR (1) TR200001797T2 (en)
TW (1) TW459052B (en)
WO (1) WO1999032672A1 (en)
ZA (1) ZA985325B (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
NL1013099C2 (en) * 1999-09-20 2001-03-21 Matthijs De Jong Pressurized tank for liquefied gas, especially for gas tankers, comprises a steel material with specific silicon, chromium, copper, molybdenum and nickel contents
JP4751224B2 (en) * 2006-03-28 2011-08-17 新日本製鐵株式会社 High strength seamless steel pipe for machine structure with excellent toughness and weldability and method for producing the same
CN101497961B (en) * 2008-02-03 2011-06-15 宝山钢铁股份有限公司 Low-temperature flexibility 1.5Ni steel and method of manufacturing the same
CN100548567C (en) * 2008-03-12 2009-10-14 江阴市恒润法兰有限公司 The manufacture method of ultralow temperature high intensity fine grain simple steel flange
CN101586209B (en) * 2008-05-23 2012-03-28 宝山钢铁股份有限公司 Hot rolling wire rod of 1800 MPa level for low-alloy structure and manufacture method thereof
BR112013000436B1 (en) 2010-07-09 2018-07-03 Nippon Steel & Sumitomo Metal Corporation NI ADDED STEEL SHEET AND SAME PRODUCTION METHOD
KR101271974B1 (en) 2010-11-19 2013-06-07 주식회사 포스코 High-strength steel having excellent cryogenic toughness and method for production thereof
WO2012153009A1 (en) * 2011-05-12 2012-11-15 Arcelormittal Investigación Y Desarrollo Sl Method for the production of very-high-strength martensitic steel and sheet thus obtained
BR112014003519B1 (en) 2011-09-28 2020-05-12 Nippon Steel Corporation STEEL SHEET WITH ADDED Ni AND THE SAME PRODUCTION METHOD
CN102409258B (en) * 2011-11-04 2013-07-10 中国科学院金属研究所 Structural homogeneity control method of boron-containing high strength hydrogen resistant brittle alloy
CN103556082B (en) * 2013-11-12 2015-07-01 湖南华菱湘潭钢铁有限公司 Production method of quenched and tempered high-strength Q620F super-thick steel plate
JP6108116B2 (en) * 2014-03-26 2017-04-05 Ｊｆｅスチール株式会社 Steel plates for marine, marine structures and hydraulic iron pipes with excellent brittle crack propagation stopping properties and methods for producing the same
KR102275814B1 (en) * 2014-12-31 2021-07-09 두산중공업 주식회사 Ultra thick steel plate and manufacturing method for offshore structure having ultra-high strength and high toughness
JP6582590B2 (en) * 2015-06-17 2019-10-02 日本製鉄株式会社 Steel sheet for LPG storage tank and method for producing the same
RU2594572C1 (en) * 2015-08-27 2016-08-20 Акционерное общество "Научно-производственное объединение "Центральный научно-исследовательский институт технологии машиностроения" АО "НПО "ЦНИИТМАШ" Martensite steel for cryogenic equipment
KR101819380B1 (en) 2016-10-25 2018-01-17 주식회사 포스코 High strength high manganese steel having excellent low temperature toughness and method for manufacturing the same
KR102075205B1 (en) 2017-11-17 2020-02-07 주식회사 포스코 Cryogenic steel plate and method for manufacturing the same
KR102155430B1 (en) * 2018-12-18 2020-09-11 현대제철 주식회사 Ultra-high strength and high toughness steel plate and method for manufacturing the same
CN110616376B (en) * 2019-10-21 2021-04-02 上海材料研究所 Fe-Mn-Si-Ni-Cu elastoplastic damping steel with excellent low-cycle fatigue performance and manufacturing method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61127815A (en) * 1984-11-26 1986-06-16 Nippon Steel Corp Production of high arrest steel containing ni
US5454883A (en) * 1993-02-02 1995-10-03 Nippon Steel Corporation High toughness low yield ratio, high fatigue strength steel plate and process of producing same
US5545269A (en) * 1994-12-06 1996-08-13 Exxon Research And Engineering Company Method for producing ultra high strength, secondary hardening steels with superior toughness and weldability

Also Published As

Publication number Publication date
BG104622A (en) 2001-03-30
WO1999032672A1 (en) 1999-07-01
PL342646A1 (en) 2001-06-18
DK200000936A (en) 2000-06-16
HUP0101125A3 (en) 2001-10-29
GB0013632D0 (en) 2000-07-26
TW459052B (en) 2001-10-11
ZA985325B (en) 1999-12-20
GB2348887A (en) 2000-10-18
TR200001797T2 (en) 2001-07-23
SE0002245L (en) 2000-06-16
AU8151198A (en) 1999-07-12
HUP0101125A2 (en) 2001-08-28
PE93599A1 (en) 1999-10-12
KR20010024757A (en) 2001-03-26
ATA915498A (en) 2001-12-15
HRP980346A2 (en) 1999-08-31
SE0002245D0 (en) 2000-06-16
SK8682000A3 (en) 2001-01-18
CN1282381A (en) 2001-01-31
DE19882879T1 (en) 2001-04-26
NO20003175D0 (en) 2000-06-19
TNSN98098A1 (en) 2000-12-29
JP2001527155A (en) 2001-12-25
CO5050267A1 (en) 2001-06-27
BR9813630A (en) 2000-10-17
EP1047799A1 (en) 2000-11-02
AR013108A1 (en) 2000-12-13
CA2316968A1 (en) 1999-07-01
SI20278A (en) 2000-12-31
IL136842A0 (en) 2001-06-14
OA11422A (en) 2004-04-21
FI20001438A (en) 2000-06-16

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