EP1031636A3 - Heavy wall steel material having superior weldability and method for producing the same - Google Patents

Heavy wall steel material having superior weldability and method for producing the same Download PDF

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Publication number
EP1031636A3
EP1031636A3 EP00301481A EP00301481A EP1031636A3 EP 1031636 A3 EP1031636 A3 EP 1031636A3 EP 00301481 A EP00301481 A EP 00301481A EP 00301481 A EP00301481 A EP 00301481A EP 1031636 A3 EP1031636 A3 EP 1031636A3
Authority
EP
European Patent Office
Prior art keywords
steel material
heavy wall
wall steel
producing
same
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.)
Granted
Application number
EP00301481A
Other languages
German (de)
French (fr)
Other versions
EP1031636B1 (en
EP1031636A2 (en
Inventor
Hiroshi Nakajima
Shiro Torizuka
Kaneaki Tsuzaki
Kotobu Nagai
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.)
Mitsubishi Heavy Industries Ltd
National Research Institute for Metals
Original Assignee
Mitsubishi Heavy Industries Ltd
National Research Institute for Metals
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 Mitsubishi Heavy Industries Ltd, National Research Institute for Metals filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP1031636A2 publication Critical patent/EP1031636A2/en
Publication of EP1031636A3 publication Critical patent/EP1031636A3/en
Application granted granted Critical
Publication of EP1031636B1 publication Critical patent/EP1031636B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1094—Alloys containing non-metals comprising an after-treatment
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0026—Matrix based on Ni, Co, Cr or alloys thereof
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

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)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

A tough high strength heavy wall steel material having superior weldability is provided, said steel material has a diameter or a side 5 mm or more in length, and comprises oxides 1 mu m or less in particle diameter homogeneously dispersed at a dispersion density in a range of from10,000 to 100,000 particles/mm<2> and uniform ferrite grains 2 mu m or less in grain diameter formed over the entire plane making a right angle with respect to the rolling direction. <IMAGE>
EP00301481A 1999-02-25 2000-02-24 Heavy wall steel material having superior weldability and method for producing the same Expired - Lifetime EP1031636B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP04896299A JP3538613B2 (en) 1999-02-25 1999-02-25 Steel thick wall material with excellent weldability and its manufacturing method
JP4896299 1999-02-25

Publications (3)

Publication Number Publication Date
EP1031636A2 EP1031636A2 (en) 2000-08-30
EP1031636A3 true EP1031636A3 (en) 2002-04-03
EP1031636B1 EP1031636B1 (en) 2004-10-13

Family

ID=12817919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00301481A Expired - Lifetime EP1031636B1 (en) 1999-02-25 2000-02-24 Heavy wall steel material having superior weldability and method for producing the same

Country Status (7)

Country Link
US (5) US20020026969A1 (en)
EP (1) EP1031636B1 (en)
JP (1) JP3538613B2 (en)
KR (1) KR100628795B1 (en)
CN (1) CN1144884C (en)
AT (1) ATE279543T1 (en)
DE (1) DE60014726T2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3944579B2 (en) * 2003-05-20 2007-07-11 独立行政法人物質・材料研究機構 Multipass warm controlled rolling process using square and oval perforated rolls.
JP4714828B2 (en) * 2004-08-06 2011-06-29 独立行政法人物質・材料研究機構 Metal wire with large strain introduced by warm controlled rolling, and manufacturing method and manufacturing apparatus thereof
DE102008053676B4 (en) * 2008-10-29 2013-03-28 Ab Skf Hydrogen-resistant steel component
IT1399625B1 (en) * 2010-04-19 2013-04-26 Archimede Solar Energy Srl IMPROVEMENT IN TUBULAR SOLAR COLLECTORS.
JP2011246804A (en) * 2010-04-30 2011-12-08 Nippon Steel Corp Electronic-beam welding joint and steel for electronic-beam welding, and manufacturing method therefor
JP5606985B2 (en) * 2011-04-08 2014-10-15 株式会社神戸製鋼所 Weld metal with excellent resistance to hydrogen embrittlement
CN102628141A (en) * 2012-05-09 2012-08-08 武汉钢铁(集团)公司 Low-cost high-ductility cold-bending formed steel with tensile resisting strength of 500MPa and manufacture method thereof
CN109665714B (en) * 2019-02-28 2021-06-29 成都光明光电股份有限公司 Optical glass, glass preform, optical element and optical instrument

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07278736A (en) * 1994-04-15 1995-10-24 Sumitomo Metal Ind Ltd Steel products having excellent toughness of weld heat affected zone
JPH093590A (en) * 1995-06-21 1997-01-07 Nippon Steel Corp Oxide dispersion strengthened ferritic heat resistant steel sheet and its production
EP0761824A2 (en) * 1995-08-29 1997-03-12 Kawasaki Steel Corporation Heavy-wall structural steel and method
JPH11246929A (en) * 1998-03-04 1999-09-14 Natl Res Inst For Metals Oxide-dispersed steel and its production
EP0984072A1 (en) * 1998-09-02 2000-03-08 Japan as represented by Director General of National Research Institute for Metals Oxide dispersion steel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05185273A (en) * 1992-01-13 1993-07-27 Tanaka Kikinzoku Kogyo Kk Oxide dispersion strengthened platinum and structure for joining platinum alloy
JP3464567B2 (en) * 1995-06-23 2003-11-10 新日本製鐵株式会社 Welded structural steel with excellent toughness in the heat affected zone
KR100340640B1 (en) * 1997-12-16 2002-07-18 이구택 Compound of flux for submerged arc welding
TW520396B (en) * 1998-03-26 2003-02-11 Nat Res Inst Metals High strength metal solidization object and oxygen-containing steel, and process for preparing the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07278736A (en) * 1994-04-15 1995-10-24 Sumitomo Metal Ind Ltd Steel products having excellent toughness of weld heat affected zone
JPH093590A (en) * 1995-06-21 1997-01-07 Nippon Steel Corp Oxide dispersion strengthened ferritic heat resistant steel sheet and its production
EP0761824A2 (en) * 1995-08-29 1997-03-12 Kawasaki Steel Corporation Heavy-wall structural steel and method
JPH11246929A (en) * 1998-03-04 1999-09-14 Natl Res Inst For Metals Oxide-dispersed steel and its production
EP0984072A1 (en) * 1998-09-02 2000-03-08 Japan as represented by Director General of National Research Institute for Metals Oxide dispersion steel

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
GREGG N. R: "A microstructural investigation of a dupley chill cast brass grain refined with aluminium and boron (M. Phil. Thesis) and references 1-66", July 1990, SURREY UNIVERSITY (DEPARTMENT OF MATERIALS SCIENCE AND ENGINEERING), XP002139572 *
J. A. GRAVES ET AL: "Undercooling behaviour during containerless processing", SOLIDIFICATION PROCESSING 1987 (PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE), October 1987 (1987-10-01), Sheffield, pages 264 - 267, XP002139571 *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 02 29 February 1996 (1996-02-29) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 05 30 May 1997 (1997-05-30) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 14 22 December 1999 (1999-12-22) *

Also Published As

Publication number Publication date
JP3538613B2 (en) 2004-06-14
KR100628795B1 (en) 2006-09-27
DE60014726T2 (en) 2006-03-09
US20050178482A1 (en) 2005-08-18
JP2000239781A (en) 2000-09-05
EP1031636B1 (en) 2004-10-13
KR20000058123A (en) 2000-09-25
US20110083775A1 (en) 2011-04-14
US20030145917A1 (en) 2003-08-07
EP1031636A2 (en) 2000-08-30
ATE279543T1 (en) 2004-10-15
US20020026969A1 (en) 2002-03-07
CN1297063A (en) 2001-05-30
CN1144884C (en) 2004-04-07
US20070119527A1 (en) 2007-05-31
DE60014726D1 (en) 2004-11-18

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