AU736035B2 - Ultra-high strength, weldable steels with excellent ultra-low temperature toughness - Google Patents

Ultra-high strength, weldable steels with excellent ultra-low temperature toughness Download PDF

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Publication number
AU736035B2
AU736035B2 AU86764/98A AU8676498A AU736035B2 AU 736035 B2 AU736035 B2 AU 736035B2 AU 86764/98 A AU86764/98 A AU 86764/98A AU 8676498 A AU8676498 A AU 8676498A AU 736035 B2 AU736035 B2 AU 736035B2
Authority
AU
Australia
Prior art keywords
steel
fine
temperature
less
grained
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
AU86764/98A
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English (en)
Other versions
AU8676498A (en
Inventor
Hitoshi Asahi
Narasimha-Rao V. Bangaru
Takuya Hara
Ja Young Koo
Michael J. Luton
Clifford W. Petersen
Hiroshi Tamehiro
Yoshio Terada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
ExxonMobil Upstream Research Co
Original Assignee
Nippon Steel Corp
ExxonMobil Upstream Research 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 Nippon Steel Corp, ExxonMobil Upstream Research Co filed Critical Nippon Steel Corp
Publication of AU8676498A publication Critical patent/AU8676498A/en
Application granted granted Critical
Publication of AU736035B2 publication Critical patent/AU736035B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • C22C38/08—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
    • 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)
  • Laminated Bodies (AREA)
AU86764/98A 1997-07-28 1998-07-28 Ultra-high strength, weldable steels with excellent ultra-low temperature toughness Ceased AU736035B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US5391597P 1997-07-28 1997-07-28
US60/053915 1997-07-28
PCT/US1998/015921 WO1999005335A1 (en) 1997-07-28 1998-07-28 Ultra-high strength, weldable steels with excellent ultra-low temperature toughness

Publications (2)

Publication Number Publication Date
AU8676498A AU8676498A (en) 1999-02-16
AU736035B2 true AU736035B2 (en) 2001-07-26

Family

ID=21987407

Family Applications (1)

Application Number Title Priority Date Filing Date
AU86764/98A Ceased AU736035B2 (en) 1997-07-28 1998-07-28 Ultra-high strength, weldable steels with excellent ultra-low temperature toughness

Country Status (14)

Country Link
US (1) US6264760B1 (enExample)
EP (1) EP1025272B1 (enExample)
JP (1) JP4294854B2 (enExample)
KR (1) KR100375086B1 (enExample)
CN (2) CN1085258C (enExample)
AT (1) ATE330040T1 (enExample)
AU (1) AU736035B2 (enExample)
BR (1) BR9811051A (enExample)
CA (1) CA2295582C (enExample)
DE (1) DE69834932T2 (enExample)
ES (1) ES2264572T3 (enExample)
RU (1) RU2218443C2 (enExample)
UA (1) UA59411C2 (enExample)
WO (1) WO1999005335A1 (enExample)

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US6264760B1 (en) 2001-07-24
EP1025272A1 (en) 2000-08-09
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CA2295582C (en) 2007-11-20
ATE330040T1 (de) 2006-07-15
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WO1999005335A8 (en) 1999-05-06
AU8676498A (en) 1999-02-16
JP4294854B2 (ja) 2009-07-15
CN1390960A (zh) 2003-01-15
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CN1265709A (zh) 2000-09-06
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