JP3943021B2 - 溶接構造物用のＴｉＮ＋ＣｕＳを析出させている鋼板、及びそれを製造するための方法、並びにそれを用いた溶接構造物 - Google Patents

溶接構造物用のＴｉＮ＋ＣｕＳを析出させている鋼板、及びそれを製造するための方法、並びにそれを用いた溶接構造物 Download PDF

Info

Publication number
JP3943021B2
JP3943021B2 JP2002543039A JP2002543039A JP3943021B2 JP 3943021 B2 JP3943021 B2 JP 3943021B2 JP 2002543039 A JP2002543039 A JP 2002543039A JP 2002543039 A JP2002543039 A JP 2002543039A JP 3943021 B2 JP3943021 B2 JP 3943021B2
Authority
JP
Japan
Prior art keywords
steel
slab
tin
less
toughness
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.)
Expired - Fee Related
Application number
JP2002543039A
Other languages
English (en)
Japanese (ja)
Other versions
JP2004514060A5 (enExample
JP2004514060A (ja
Inventor
ホン チュル ジェオン
ハエ チャン チョイ
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.)
Posco Holdings Inc
Original Assignee
Posco Co Ltd
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 Posco Co Ltd filed Critical Posco Co Ltd
Publication of JP2004514060A publication Critical patent/JP2004514060A/ja
Publication of JP2004514060A5 publication Critical patent/JP2004514060A5/ja
Application granted granted Critical
Publication of JP3943021B2 publication Critical patent/JP3943021B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/24—Nitriding
    • C23C8/26—Nitriding of ferrous surfaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/06—Deoxidising, e.g. killing
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/12—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
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/009—Pearlite
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys 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
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/30—Foil or other thin sheet-metal making or treating
    • Y10T29/301—Method
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12576—Boride, carbide or nitride component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12639—Adjacent, identical composition, components
    • Y10T428/12646—Group VIII or IB metal-base
    • Y10T428/12653—Fe, containing 0.01-1.7% carbon [i.e., steel]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12951—Fe-base component
    • Y10T428/12958—Next to Fe-base component
    • Y10T428/12965—Both containing 0.01-1.7% carbon [i.e., steel]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12951—Fe-base component
    • Y10T428/12972—Containing 0.01-1.7% carbon [i.e., steel]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Steel (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
JP2002543039A 2000-11-17 2001-11-16 溶接構造物用のＴｉＮ＋ＣｕＳを析出させている鋼板、及びそれを製造するための方法、並びにそれを用いた溶接構造物 Expired - Fee Related JP3943021B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2000-0068327A KR100482208B1 (ko) 2000-11-17 2000-11-17 침질처리에 의한 용접구조용 강재의 제조방법
PCT/KR2001/001956 WO2002040731A1 (en) 2000-11-17 2001-11-16 STEEL PLATE TO BE PRECIPITATING TiN+CuS FOR WELDED STRUCTURES, METHOD FOR MANUFACTURING THE SAME, WELDING FABRIC USING THE SAME

Publications (3)

Publication Number Publication Date
JP2004514060A JP2004514060A (ja) 2004-05-13
JP2004514060A5 JP2004514060A5 (enExample) 2006-02-09
JP3943021B2 true JP3943021B2 (ja) 2007-07-11

Family

ID=19699592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002543039A Expired - Fee Related JP3943021B2 (ja) 2000-11-17 2001-11-16 溶接構造物用のＴｉＮ＋ＣｕＳを析出させている鋼板、及びそれを製造するための方法、並びにそれを用いた溶接構造物

Country Status (7)

Country Link
US (1) US6686061B2 (enExample)
EP (1) EP1339889B1 (enExample)
JP (1) JP3943021B2 (enExample)
KR (1) KR100482208B1 (enExample)
CN (1) CN1144892C (enExample)
DE (1) DE60130362T2 (enExample)
WO (1) WO2002040731A1 (enExample)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60130788T2 (de) * 2000-12-01 2008-07-17 Posco, Pohang Tin- und mns-ausscheidendes stahlblech für schweisstrukturen, hetsellungsverfahren dafür und diese verwendende schweissgefüge
US7690417B2 (en) * 2001-09-14 2010-04-06 Nucor Corporation Thin cast strip with controlled manganese and low oxygen levels and method for making same
DE60130500T2 (de) * 2001-11-16 2008-06-12 Posco, Pohang Stahlplatte mit überlegener zähigkeit in der von der schweisshitze beeinflussten zone und verfahren zu ihrer herstellung; schweisskonstruktion unter verwendung davon
JP3863818B2 (ja) * 2002-07-10 2006-12-27 新日本製鐵株式会社 低降伏比型鋼管
JP4616552B2 (ja) * 2003-06-18 2011-01-19 新日本製鐵株式会社 Ｃｕ含有鋼材
KR100723160B1 (ko) * 2005-05-03 2007-05-30 주식회사 포스코 면내이방성이 우수한 냉연강판과 그 제조방법
JP4009313B2 (ja) * 2006-03-17 2007-11-14 株式会社神戸製鋼所 溶接性に優れた高強度鋼材およびその製造方法
BRPI0718935B1 (pt) * 2006-11-30 2016-08-23 Nippon Steel & Sumitomo Metal Corp tubos soldados para tubulação de alta resistência superior em tenacidade à baixa temperatura e método de produção dos mesmos.
JP5251089B2 (ja) * 2006-12-04 2013-07-31 新日鐵住金株式会社 低温靱性に優れた高強度厚肉ラインパイプ用溶接鋼管及びその製造方法
US8110292B2 (en) * 2008-04-07 2012-02-07 Nippon Steel Corporation High strength steel plate, steel pipe with excellent low temperature toughness, and method of production of same
JP5463527B2 (ja) * 2008-12-18 2014-04-09 独立行政法人日本原子力研究開発機構 オーステナイト系ステンレス鋼からなる溶接材料およびそれを用いた応力腐食割れ予防保全方法ならびに粒界腐食予防保全方法
JP5229823B2 (ja) 2009-09-25 2013-07-03 株式会社日本製鋼所 高強度高靭性鋳鋼材およびその製造方法
CN101705425B (zh) * 2009-11-06 2011-07-20 武汉钢铁(集团)公司 含Ti抗拉强度≥450MPa级耐硫酸露点腐蚀钢
JP5432105B2 (ja) * 2010-09-28 2014-03-05 株式会社神戸製鋼所 肌焼鋼およびその製造方法
CN102912229B (zh) * 2012-10-23 2016-01-20 鞍钢股份有限公司 一种390MPa级低成本热轧结构钢板及其制造方法
CN103774060A (zh) * 2013-12-26 2014-05-07 马钢(集团)控股有限公司 一种345MPa级热轧板卷的生产工艺
US10829839B2 (en) * 2014-02-05 2020-11-10 Arcelormittal Production of HIC-resistant pressure vessel grade plates using a low-carbon composition
RU2556165C1 (ru) * 2014-11-05 2015-07-10 Юлия Алексеевна Щепочкина Сталь
KR101736611B1 (ko) * 2015-12-04 2017-05-17 주식회사 포스코 취성균열전파 저항성 및 용접부 취성균열개시 저항성이 우수한 고강도 강재 및 그 제조방법
KR101917454B1 (ko) * 2016-12-22 2018-11-09 주식회사 포스코 고강도 고인성 후강판 및 이의 제조방법
JP7230454B2 (ja) * 2018-11-21 2023-03-01 日本製鉄株式会社 継目無鋼管用鋼材
JP7303414B2 (ja) * 2018-11-28 2023-07-05 日本製鉄株式会社 鋼板
JP7670971B2 (ja) * 2021-10-19 2025-05-01 日本製鉄株式会社 鋼材

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5217314A (en) 1975-07-31 1977-02-09 Kobe Steel Ltd Structural steel for heavy heat input welding
JPS593537B2 (ja) 1982-04-26 1984-01-24 新日本製鐵株式会社 溶接構造用鋼
JPH07824B2 (ja) 1984-05-22 1995-01-11 新日本製鐵株式会社 溶接用高靭性鋼
JPS6179745A (ja) 1984-09-28 1986-04-23 Nippon Steel Corp 溶接継手熱影響部靭性のすぐれた鋼材の製造法
JPS6415320A (en) 1987-07-08 1989-01-19 Nippon Steel Corp Production of high tensile steel for low temperature use having excellent toughness of weld zone
JPH01176016A (ja) 1987-12-28 1989-07-12 Kawasaki Steel Corp 溶接継手部のじん性に優れた鋼材の製造方法
JPH0757886B2 (ja) * 1988-07-14 1995-06-21 新日本製鐵株式会社 溶接熱影響部靭性の優れたＣｕ添加鋼の製造法
JPH05186848A (ja) 1992-01-10 1993-07-27 Nippon Steel Corp 溶接熱影響部靭性の優れた大入熱溶接用鋼
JP2622800B2 (ja) * 1992-09-16 1997-06-18 新日本製鐵株式会社 現地溶接性及び耐治具跡割れ性に優れた大入熱溶接用調質高張力鋼とその製造方法
DE4311151C1 (de) * 1993-04-05 1994-07-28 Thyssen Stahl Ag Verfahren zur Herstellung von kornorientierten Elektroblechen mit verbesserten Ummagnetisierungsverlusten
JPH0762489A (ja) * 1993-08-30 1995-03-07 Nippon Steel Corp アーク溶接部の疲労特性に優れた高張力鋼
JP2953919B2 (ja) 1993-09-10 1999-09-27 新日本製鐵株式会社 高靱性高強度鋼用鋳片及びその鋳片による圧延形鋼の製造方法
JPH0860292A (ja) 1994-08-23 1996-03-05 Sumitomo Metal Ind Ltd 溶接熱影響部靱性の優れた高張力鋼
JP3256401B2 (ja) * 1995-02-27 2002-02-12 川崎製鉄株式会社 入熱５００ｋＪ／ｃｍ以上の大入熱溶接用鋼およびその製造方法
JP3214281B2 (ja) * 1995-03-03 2001-10-02 日本鋼管株式会社 低温用建築鋼材
JPH09194990A (ja) 1996-01-23 1997-07-29 Sumitomo Metal Ind Ltd 溶接熱影響部靱性の優れた高張力鋼
JP3408385B2 (ja) * 1996-04-17 2003-05-19 新日本製鐵株式会社 溶接熱影響部靭性の優れた鋼
JP3434125B2 (ja) 1996-06-04 2003-08-04 株式会社神戸製鋼所 溶接熱影響部の靱性が優れた構造用鋼板
JPH10298706A (ja) 1996-06-21 1998-11-10 Nkk Corp 大入熱溶接性、溶接割れ感受性に優れた高張力鋼およびその製造方法
JP4041201B2 (ja) 1997-02-28 2008-01-30 新日本製鐵株式会社 超大入熱溶接熱影響部の靱性に優れた溶接用高張力鋼
JP4022958B2 (ja) 1997-11-11 2007-12-19 Ｊｆｅスチール株式会社 溶接熱影響部靱性に優れた高靱性厚鋼板およびその製造方法
JP3752076B2 (ja) * 1998-04-15 2006-03-08 新日本製鐵株式会社 Ｍｇを含有する超大入熱溶接用鋼
JP2000226633A (ja) 1999-02-04 2000-08-15 Nkk Corp 靭性に優れた電子ビーム溶接用鋼
KR100368264B1 (ko) * 2000-07-05 2003-02-06 주식회사 포스코 용접열영향부 인성이 우수한 용접구조용 강재의 제조방법 및 이로부터 제조된 강재, 이를 이용한 용접구조물
KR100368242B1 (ko) * 2000-08-02 2003-02-06 주식회사 포스코 용접열영향부 인성이 우수한 용접구조용 강재 및 그제조방법, 이를 이용한 용접구조물
KR100470052B1 (ko) * 2000-11-17 2005-02-04 주식회사 포스코 고강도 용접구조용 강재 및 그 제조방법
KR100482210B1 (ko) * 2000-11-18 2005-04-21 주식회사 포스코 침질처리에 의한 고강도 용접구조용 강재의 제조방법

Also Published As

Publication number Publication date
KR20020038226A (ko) 2002-05-23
US20030131914A1 (en) 2003-07-17
EP1339889B1 (en) 2007-09-05
EP1339889A1 (en) 2003-09-03
DE60130362T2 (de) 2008-06-12
DE60130362D1 (de) 2007-10-18
WO2002040731A1 (en) 2002-05-23
CN1144892C (zh) 2004-04-07
KR100482208B1 (ko) 2005-04-21
JP2004514060A (ja) 2004-05-13
CN1395624A (zh) 2003-02-05
EP1339889A4 (en) 2004-11-03
US6686061B2 (en) 2004-02-03

Similar Documents

Publication Publication Date Title
JP3895687B2 (ja) 溶接構造物用のＴｉＮ＋ＺｒＮを析出させている鋼板、及びそれを製造するための方法、並びにそれを用いる溶接構造物
JP3863878B2 (ja) 溶接熱影響部の靭性が優れた溶接構造用鋼材、その製造方法及びこれを用いた溶接構造物
US6686061B2 (en) Steel plate having TiN+CuS precipitates for welded structures, method for manufacturing same and welded structure made therefrom
JP3895686B2 (ja) 溶接構造物用のＴｉＮ＋ＭｎＳを析出させている鋼板、及びそれを製造するための方法、並びにそれを用いる溶接構造物
JPH08295982A (ja) 低温靱性に優れた厚鋼板およびその製造方法
KR100481363B1 (ko) 미세한ＴｉＯ산화물과 ＴｉＮ의 석출물을 갖는 고강도용접구조용 강의 제조방법
KR100482197B1 (ko) 침질처리에 의한 ＴｉＮ석출물과 미세한 ＴｉＯ산화물을갖는 고강도 용접구조용 강의 제조방법
KR100368244B1 (ko) 용접열영향부 인성이 우수한 용접구조용 강재의 제조방법
KR100470649B1 (ko) 이상역 제어압연에 의한 고강도 용접구조용 강재의 제조방법
KR100360107B1 (ko) 용접열영향부 인성이 우수한 용접구조용 강재의 제조방법
KR100482196B1 (ko) 침질처리에 의한 ＴｉＮ석출물과 미세한 ＴｉＯ산화물을갖는 용접구조용 강의 제조방법
KR100481365B1 (ko) 미세한 ＴｉＯ산화물과 ＴｉＮ의 석출물을 갖는용접구조용 강의 제조방법
KR100568361B1 (ko) 침질처리에 의한 용접열영향부 인성이 우수한 용접구조용강재의 제조방법
KR20020007468A (ko) 용접열영향부 인성이 우수한 용접구조용 강재 및 그제조방법, 이를 이용한 용접구조물
KR20020041026A (ko) 침질처리에 의한 ＴｉＮ석출물과 Ｍｇ-Ｔｉ의복합산화물을 갖는 고강도 용접구조용 강재의 제조방법
KR20030053800A (ko) 용접열영향부 인성이 우수한 용접구조용 강재 및 그제조방법

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20041006

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20041214

A524 Written submission of copy of amendment under article 19 pct

Free format text: JAPANESE INTERMEDIATE CODE: A524

Effective date: 20050309

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20070320

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070404

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees