CO5111038A1 - ULTRA-HIGH RESISTANCE STEELS WITH EXCELLENT TEMPERATURE TENACITY - Google Patents

ULTRA-HIGH RESISTANCE STEELS WITH EXCELLENT TEMPERATURE TENACITY

Info

Publication number
CO5111038A1
CO5111038A1 CO99079003A CO99079003A CO5111038A1 CO 5111038 A1 CO5111038 A1 CO 5111038A1 CO 99079003 A CO99079003 A CO 99079003A CO 99079003 A CO99079003 A CO 99079003A CO 5111038 A1 CO5111038 A1 CO 5111038A1
Authority
CO
Colombia
Prior art keywords
temperature
steel
piece
austenite
steel plate
Prior art date
Application number
CO99079003A
Other languages
Spanish (es)
Inventor
Koo Jayoung
V Bangaru Narasimha-Ra
Ayer Raghavan
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 CO5111038A1 publication Critical patent/CO5111038A1/en

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • C22C38/16—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)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

Un método para preparar una placa de acero con una microestructura compuesta predominantemente por capas de martensita templada de grano fino, bainita inferior templada de grano fino, bainita granular fina templada (FGB), o por una mezcla de estás, en donde dicho método comprende los pasos de:(a) calentamiento de una pieza de acero a una temperatura de recalentamiento suficientemente alta como para: (i) homogenizar substancialmente dicha pieza de acero, (ii) disolver substancialmente todos los carburos y carbonitruros de niobio y vanadio presentes en dicha pieza de acero, y (iii) establecer granos finos iniciales de austenita en dicha pieza de acero;(b) reducción de dicha pieza de acero a fin de formar una placa de acero en uno o más pasos de laminación en caliente en un primer rango de temperaturas dentro del cual la austenita se recristaliza;(c) reducción adicional de dicha placa de acero en uno o más pasos de laminación en caliente en un segundo rango de temperaturas ubicadas por debajo de la temperatura y por encima de la temperatura por debajo de la cual la austenita no se recristaliza (temperatura Tnr) y por encima de la temperatura a la cual la austenita comienza a transformarse en ferrita durante el enfriamiento (temperatura de transformación Ar3); ...<EMI FILE="99079003_1" ID="1" IMF=JPEG >A method for preparing a steel plate with a microstructure predominantly composed of layers of temperate martensite of fine grain, tempered lower bainite of fine grain, tempered fine granular bainite (FGB), or a mixture of these, wherein said method comprises steps of: (a) heating a piece of steel at a reheating temperature high enough to: (i) substantially homogenize said piece of steel, (ii) substantially dissolve all the carbides and carbonitrides of niobium and vanadium present in said piece of steel, and (iii) establish initial fine grains of austenite in said steel piece; (b) reduction of said steel piece in order to form a steel plate in one or more hot rolling steps in a first range of temperatures within which austenite is recrystallized; (c) further reduction of said steel plate in one or more hot rolling steps in a second temperature range located as below the temperature and above the temperature below which the austenite does not recrystallize (temperature Tnr) and above the temperature at which the austenite begins to become ferrite during cooling (transformation temperature Ar3 ); ... <EMI FILE = "99079003_1" ID = "1" MFI = JPEG>

CO99079003A 1998-12-19 1999-12-17 ULTRA-HIGH RESISTANCE STEELS WITH EXCELLENT TEMPERATURE TENACITY CO5111038A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21577498A 1998-12-19 1998-12-19

Publications (1)

Publication Number Publication Date
CO5111038A1 true CO5111038A1 (en) 2001-12-26

Family

ID=22804333

Family Applications (1)

Application Number Title Priority Date Filing Date
CO99079003A CO5111038A1 (en) 1998-12-19 1999-12-17 ULTRA-HIGH RESISTANCE STEELS WITH EXCELLENT TEMPERATURE TENACITY

Country Status (6)

Country Link
AU (1) AU3997000A (en)
CO (1) CO5111038A1 (en)
DZ (1) DZ2971A1 (en)
PE (1) PE20001524A1 (en)
TN (1) TNSN99233A1 (en)
WO (1) WO2000039352A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US7745122B2 (en) 2005-07-15 2010-06-29 Applied Biosystems, Llc Analyzing messenger RNA and micro RNA in the same reaction mixture
US20070059713A1 (en) 2005-09-09 2007-03-15 Lee Jun E SSB-DNA polymerase fusion proteins
KR101018131B1 (en) 2007-11-22 2011-02-25 주식회사 포스코 High strength and low yield ratio steel for structure having excellent low temperature toughness
JP5365217B2 (en) * 2008-01-31 2013-12-11 Ｊｆｅスチール株式会社 High strength steel plate and manufacturing method thereof
JP5208178B2 (en) * 2010-09-30 2013-06-12 株式会社神戸製鋼所 High-strength steel sheet with a tensile strength of 980 MPa or more and excellent low-temperature toughness of multilayer prime joints
CN103014554B (en) 2011-09-26 2014-12-03 宝山钢铁股份有限公司 Low-yield-ratio high-tenacity steel plate and manufacture method thereof
CN103014539B (en) 2011-09-26 2015-10-28 宝山钢铁股份有限公司 A kind of yield strength 700MPa grade high-strength high-tenacity steel plate and manufacture method thereof
KR20140129081A (en) * 2012-02-15 2014-11-06 Jfe 죠코 가부시키가이샤 Steel for nitrocarburizing and nitrocarburized component using the steel as material
EP3736344A1 (en) 2014-03-13 2020-11-11 Sequenom, Inc. Methods and processes for non-invasive assessment of genetic variations
KR101988765B1 (en) 2017-12-21 2019-06-12 주식회사 포스코 Hot rolled steel sheet with excellent durability and method for manufacturing thereof
RU2686758C1 (en) * 2018-04-02 2019-04-30 Публичное акционерное общество "Северсталь" (ПАО "Северсталь") Structural cryogenic steel and method of its production
CN113151664B (en) * 2021-03-31 2023-02-28 甘肃酒钢集团宏兴钢铁股份有限公司 Mixed heating method for industrial high-purity nickel plate blank and stainless steel
KR20240134964A (en) 2022-04-20 2024-09-10 제이에프이 스틸 가부시키가이샤 Steel sheet and its manufacturing method
WO2023203702A1 (en) * 2022-04-20 2023-10-26 Ｊｆｅスチール株式会社 Steel sheet and method for manufacturing same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5545270A (en) * 1994-12-06 1996-08-13 Exxon Research And Engineering Company Method of producing high strength dual phase steel plate with superior toughness and weldability
US5900075A (en) * 1994-12-06 1999-05-04 Exxon Research And Engineering Co. Ultra high strength, secondary hardening steels with superior toughness and weldability
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
CN1146784A (en) * 1995-01-26 1997-04-02 新日本制铁株式会社 Weldable high-tensile steel excellent in low-temp. toughness
CN1148416A (en) * 1995-02-03 1997-04-23 新日本制铁株式会社 High strength line-pipe steel having low-yield ratio and excullent low-temp toughness

Also Published As

Publication number Publication date
PE20001524A1 (en) 2001-01-22
TNSN99233A1 (en) 2001-12-31
DZ2971A1 (en) 2004-03-15
WO2000039352A3 (en) 2000-09-21
WO2000039352A2 (en) 2000-07-06
AU3997000A (en) 2000-07-31

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