WO2000039352A3 - Ultra-high strength steels with excellent cryogenic temperature toughness - Google Patents

Ultra-high strength steels with excellent cryogenic temperature toughness Download PDF

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Publication number
WO2000039352A3
WO2000039352A3 PCT/US1999/029802 US9929802W WO0039352A3 WO 2000039352 A3 WO2000039352 A3 WO 2000039352A3 US 9929802 W US9929802 W US 9929802W WO 0039352 A3 WO0039352 A3 WO 0039352A3
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
plate
ultra
high strength
quenching
Prior art date
Application number
PCT/US1999/029802
Other languages
French (fr)
Other versions
WO2000039352A2 (en
Inventor
Jayoung Koo
Narasimha-Rao V Bangaru
Raghavan Ayer
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
Priority to AU39970/00A priority Critical patent/AU3997000A/en
Publication of WO2000039352A2 publication Critical patent/WO2000039352A2/en
Publication of WO2000039352A3 publication Critical patent/WO2000039352A3/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

Abstract

An ultra-high strength, weldable, low alloy steel, containing less than 9 wt% nickel, with excellent cryogenic temperature toughness in the base plate and in the heat affected zone (HAZ) when welded, having a tensile strength greater than about 830 MPa (120 ksi) and a microstructure comprising predominantly tempered fine-grained lath martensite, tempered fine-grained lower bainite, tempered fine granular bainite (FGB), or mixtures thereof, is prepared by heating a steel slab comprising iron and specified weight percentages of some or all of the additives carbon, manganese, nickel, nitrogen, copper, chromium, molybdenum, silicon, niobium, vanadium, titanium, aluminum, and boron; reducing the slab to form plate in one or more passes in a temperature range in which austenite recrystallizes; finish rolling the plate in one or more passes in a temperature range below the austenite recrystallization temperature and above the AR3 transformation temperature; quenching the finish rolled plate to a suitable Quench Stop Temperature; stopping the quenching; and tempering the plate at a suitable temperature for a period of time sufficient to cause precipitation of hardening particles.
PCT/US1999/029802 1998-12-19 1999-12-16 Ultra-high strength steels with excellent cryogenic temperature toughness WO2000039352A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU39970/00A AU3997000A (en) 1998-12-19 1999-12-16 Ultra-high strength steels with excellent cryogenic temperature toughness

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21577498A 1998-12-19 1998-12-19
US09/215,774 1998-12-19

Publications (2)

Publication Number Publication Date
WO2000039352A2 WO2000039352A2 (en) 2000-07-06
WO2000039352A3 true WO2000039352A3 (en) 2000-09-21

Family

ID=22804333

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/029802 WO2000039352A2 (en) 1998-12-19 1999-12-16 Ultra-high strength steels with excellent cryogenic temperature toughness

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
EP2308990B1 (en) 2005-07-15 2012-09-26 Life Technologies Corporation 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
WO2023203702A1 (en) * 2022-04-20 2023-10-26 Ｊｆｅスチール株式会社 Steel sheet and method for manufacturing same
JP7364137B1 (en) 2022-04-20 2023-10-18 Ｊｆｅスチール株式会社 Steel plate and its manufacturing method

Citations (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
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
US5653826A (en) * 1994-12-06 1997-08-05 Exxon Research And Engineering Company High strength dual phase steel plate with superior toughness and weldability
US5755895A (en) * 1995-02-03 1998-05-26 Nippon Steel Corporation High strength line pipe steel having low yield ratio and excellent in low temperature toughness
US5798004A (en) * 1995-01-26 1998-08-25 Nippon Steel Corporation Weldable high strength steel having excellent low temperature toughness
US5900075A (en) * 1994-12-06 1999-05-04 Exxon Research And Engineering Co. Ultra high strength, secondary hardening steels with superior toughness and weldability

Patent Citations (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
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
US5653826A (en) * 1994-12-06 1997-08-05 Exxon Research And Engineering Company 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
US5798004A (en) * 1995-01-26 1998-08-25 Nippon Steel Corporation Weldable high strength steel having excellent low temperature toughness
US5755895A (en) * 1995-02-03 1998-05-26 Nippon Steel Corporation High strength line pipe steel having low yield ratio and excellent in low temperature toughness

Also Published As

Publication number Publication date
AU3997000A (en) 2000-07-31
CO5111038A1 (en) 2001-12-26
TNSN99233A1 (en) 2001-12-31
WO2000039352A2 (en) 2000-07-06
PE20001524A1 (en) 2001-01-22
DZ2971A1 (en) 2004-03-15

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