KR100482208B1 - 침질처리에 의한 용접구조용 강재의 제조방법 - Google Patents

침질처리에 의한 용접구조용 강재의 제조방법 Download PDF

Info

Publication number
KR100482208B1
KR100482208B1 KR10-2000-0068327A KR20000068327A KR100482208B1 KR 100482208 B1 KR100482208 B1 KR 100482208B1 KR 20000068327 A KR20000068327 A KR 20000068327A KR 100482208 B1 KR100482208 B1 KR 100482208B1
Authority
KR
South Korea
Prior art keywords
steel
tin
less
precipitates
affected zone
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
KR10-2000-0068327A
Other languages
English (en)
Korean (ko)
Other versions
KR20020038226A (ko
Inventor
정홍철
최해창
Original Assignee
주식회사 포스코
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
Priority to KR10-2000-0068327A priority Critical patent/KR100482208B1/ko
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to PCT/KR2001/001956 priority patent/WO2002040731A1/en
Priority to CNB018037968A priority patent/CN1144892C/zh
Priority to US10/181,328 priority patent/US6686061B2/en
Priority to JP2002543039A priority patent/JP3943021B2/ja
Priority to EP01996634A priority patent/EP1339889B1/en
Priority to DE60130362T priority patent/DE60130362T2/de
Publication of KR20020038226A publication Critical patent/KR20020038226A/ko
Application granted granted Critical
Publication of KR100482208B1 publication Critical patent/KR100482208B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26Methods of annealing
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C8/00Solid 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
    • C23C8/06Solid 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
    • C23C8/08Solid 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
    • C23C8/24Nitriding
    • C23C8/26Nitriding of ferrous surfaces
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04Removing impurities by adding a treating agent
    • C21C7/06Deoxidising, e.g. killing
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/002Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/06Ferrous alloys, e.g. steel alloys containing aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/12Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/14Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/16Ferrous alloys, e.g. steel alloys containing copper
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/005Ferrite
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/009Pearlite
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226Hot rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/30Foil or other thin sheet-metal making or treating
    • Y10T29/301Method
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12576Boride, carbide or nitride component
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12639Adjacent, identical composition, components
    • Y10T428/12646Group VIII or IB metal-base
    • Y10T428/12653Fe, containing 0.01-1.7% carbon [i.e., steel]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771Transition metal-base component
    • Y10T428/12861Group VIII or IB metal-base component
    • Y10T428/12951Fe-base component
    • Y10T428/12958Next to Fe-base component
    • Y10T428/12965Both containing 0.01-1.7% carbon [i.e., steel]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771Transition metal-base component
    • Y10T428/12861Group VIII or IB metal-base component
    • Y10T428/12951Fe-base component
    • Y10T428/12972Containing 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)
KR10-2000-0068327A 2000-11-17 2000-11-17 침질처리에 의한 용접구조용 강재의 제조방법 Expired - Fee Related KR100482208B1 (ko)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR10-2000-0068327A KR100482208B1 (ko) 2000-11-17 2000-11-17 침질처리에 의한 용접구조용 강재의 제조방법
CNB018037968A CN1144892C (zh) 2000-11-17 2001-11-16 用于焊接结构的具有TiN+CuS沉淀物的钢板,其制备方法,用其制成的焊接结构
US10/181,328 US6686061B2 (en) 2000-11-17 2001-11-16 Steel plate having TiN+CuS precipitates for welded structures, method for manufacturing same and welded structure made therefrom
JP2002543039A 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
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
EP01996634A EP1339889B1 (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
DE60130362T DE60130362T2 (de) 2000-11-17 2001-11-16 Stahlplatte mit tin- und cus-ausscheidungen für geschweisste strukturen, herstellungsverfahren dafür und diese verwendende schweissgefüge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2000-0068327A KR100482208B1 (ko) 2000-11-17 2000-11-17 침질처리에 의한 용접구조용 강재의 제조방법

Publications (2)

Publication Number Publication Date
KR20020038226A KR20020038226A (ko) 2002-05-23
KR100482208B1 true KR100482208B1 (ko) 2005-04-21

Family

ID=19699592

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2000-0068327A Expired - Fee Related KR100482208B1 (ko) 2000-11-17 2000-11-17 침질처리에 의한 용접구조용 강재의 제조방법

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
US6946038B2 (en) * 2000-12-01 2005-09-20 Posco Steel plate having Tin+MnS precipitates for welded structures, method for manufacturing same and welded structure
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
US7105066B2 (en) * 2001-11-16 2006-09-12 Posco Steel plate having superior toughness in weld heat-affected zone and welded structure made therefrom
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
KR100723216B1 (ko) * 2005-05-03 2007-05-29 주식회사 포스코 소성이방성이 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
US8039118B2 (en) * 2006-11-30 2011-10-18 Nippon Steel Corporation Welded steel pipe for high strength line pipe superior in low temperature toughness and method of production of the same
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
WO2015120189A1 (en) * 2014-02-05 2015-08-13 Arcelormittal S.A. 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

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0693371A (ja) * 1992-09-16 1994-04-05 Nippon Steel Corp 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
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
JPH08232043A (ja) * 1995-02-27 1996-09-10 Kawasaki Steel Corp 入熱500kJ/cm以上の大入熱溶接用鋼およびその製造方法
JPH08246094A (ja) * 1995-03-03 1996-09-24 Nkk Corp 低温用建築鋼材
KR20020011470A (ko) * 2000-08-02 2002-02-09 이구택 용접열영향부 인성이 우수한 용접구조용 강재 및 그제조방법, 이를 이용한 용접구조물
KR20020038225A (ko) * 2000-11-17 2002-05-23 이구택 고강도 용접구조용 강재 및 그 제조방법
KR20020038891A (ko) * 2000-11-18 2002-05-24 이구택 침질처리에 의한 고강도 용접구조용 강재의 제조방법

Family Cites Families (20)

* 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
DE4311151C1 (de) * 1993-04-05 1994-07-28 Thyssen Stahl Ag Verfahren zur Herstellung von kornorientierten Elektroblechen mit verbesserten Ummagnetisierungsverlusten
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
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0693371A (ja) * 1992-09-16 1994-04-05 Nippon Steel Corp 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
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
JPH08232043A (ja) * 1995-02-27 1996-09-10 Kawasaki Steel Corp 入熱500kJ/cm以上の大入熱溶接用鋼およびその製造方法
JPH08246094A (ja) * 1995-03-03 1996-09-24 Nkk Corp 低温用建築鋼材
KR20020011470A (ko) * 2000-08-02 2002-02-09 이구택 용접열영향부 인성이 우수한 용접구조용 강재 및 그제조방법, 이를 이용한 용접구조물
KR20020038225A (ko) * 2000-11-17 2002-05-23 이구택 고강도 용접구조용 강재 및 그 제조방법
KR20020038891A (ko) * 2000-11-18 2002-05-24 이구택 침질처리에 의한 고강도 용접구조용 강재의 제조방법

Also Published As

Publication number Publication date
WO2002040731A1 (en) 2002-05-23
EP1339889B1 (en) 2007-09-05
DE60130362D1 (de) 2007-10-18
US6686061B2 (en) 2004-02-03
CN1144892C (zh) 2004-04-07
JP2004514060A (ja) 2004-05-13
DE60130362T2 (de) 2008-06-12
JP3943021B2 (ja) 2007-07-11
KR20020038226A (ko) 2002-05-23
EP1339889A4 (en) 2004-11-03
CN1395624A (zh) 2003-02-05
EP1339889A1 (en) 2003-09-03
US20030131914A1 (en) 2003-07-17

Similar Documents

Publication Publication Date Title
KR100482208B1 (ko) 침질처리에 의한 용접구조용 강재의 제조방법
KR100380750B1 (ko) 용접열영향부 인성이 우수한 고강도 용접구조용 강재의제조방법
KR100360106B1 (ko) 용접열영향부 인성이 우수한 고강도 용접구조용 강재의 제조방법 및 이로부터 제조된 강재, 이를 이용한 용접구조물
KR100368242B1 (ko) 용접열영향부 인성이 우수한 용접구조용 강재 및 그제조방법, 이를 이용한 용접구조물
KR100482210B1 (ko) 침질처리에 의한 고강도 용접구조용 강재의 제조방법
KR100368244B1 (ko) 용접열영향부 인성이 우수한 용접구조용 강재의 제조방법
KR100470649B1 (ko) 이상역 제어압연에 의한 고강도 용접구조용 강재의 제조방법
KR100380751B1 (ko) TiN+MnS의 복합석출물을 갖는 용접구조용 강재, 그제조방법, 이를 이용한 용접구조물
KR100470055B1 (ko) 침질처리에 의한 TiN석출물과 Mg-Ti의복합산화물을 갖는 용접구조용 강재의 제조방법
KR100470052B1 (ko) 고강도 용접구조용 강재 및 그 제조방법
KR100470650B1 (ko) 침질처리와 이상역 제어압연에 의한 고강도 용접구조용강재의 제조방법
KR100360107B1 (ko) 용접열영향부 인성이 우수한 용접구조용 강재의 제조방법
KR100482194B1 (ko) 침질처리에 의해 TiN+MnS의 복합석출물을 갖는고강도 용접구조용 강재의 제조방법
KR100368243B1 (ko) 용접열영향부 인성이 우수한 용접구조용 강재 및 그제조방법, 이를 이용한 용접구조물
KR100435488B1 (ko) 침질처리에 의해 TiN과 ZrN의 석출물을 갖는용접구조용 강재의 제조방법
KR100482216B1 (ko) 침질처리에 의해 TiN+MnS의 복합석출물을 갖는용접구조용 강재의 제조방법
KR100568361B1 (ko) 침질처리에 의한 용접열영향부 인성이 우수한 용접구조용강재의 제조방법
KR100482212B1 (ko) 침질처리에 의한 TiN석출물과 Mg-Ti의복합산화물을 갖는 고강도 용접구조용 강재의 제조방법
KR100482196B1 (ko) 침질처리에 의한 TiN석출물과 미세한 TiO산화물을갖는 용접구조용 강의 제조방법
KR100435489B1 (ko) 침질처리에 의해 TiN과 ZrN의 석출물을 갖는 고강도용접구조용 강재의 제조방법
KR100482215B1 (ko) 침질처리에 의한 고강도 용접구조용 강재의 제조방법
KR100470667B1 (ko) 용접열영향부 인성이 우수한 고강도 용접구조용 강재의제조방법
KR100482214B1 (ko) 침질처리에 의한 고강도 용접구조용 강재의 제조방법
KR100482195B1 (ko) 침질처리와 이상역 제어압연에 의한 고강도 용접구조용강재의 제조방법
KR100568362B1 (ko) 대입열 용접열영향부 인성이 우수한 고강도 용접구조용강재의 제조방법

Legal Events

Date Code Title Description
PA0109 Patent application

St.27 status event code: A-0-1-A10-A12-nap-PA0109

PN2301 Change of applicant

St.27 status event code: A-3-3-R10-R13-asn-PN2301

St.27 status event code: A-3-3-R10-R11-asn-PN2301

R18-X000 Changes to party contact information recorded

St.27 status event code: A-3-3-R10-R18-oth-X000

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

A201 Request for examination
PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

R17-X000 Change to representative recorded

St.27 status event code: A-3-3-R10-R17-oth-X000

D13-X000 Search requested

St.27 status event code: A-1-2-D10-D13-srh-X000

D14-X000 Search report completed

St.27 status event code: A-1-2-D10-D14-srh-X000

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

St.27 status event code: A-1-2-D10-D22-exm-PE0701

GRNT Written decision to grant
PR0701 Registration of establishment

St.27 status event code: A-2-4-F10-F11-exm-PR0701

PR1002 Payment of registration fee

St.27 status event code: A-2-2-U10-U11-oth-PR1002

Fee payment year number: 1

PG1601 Publication of registration

St.27 status event code: A-4-4-Q10-Q13-nap-PG1601

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 4

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 5

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 6

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 7

FPAY Annual fee payment
PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 8

FPAY Annual fee payment
PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 9

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 10

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 11

FPAY Annual fee payment

Payment date: 20160328

Year of fee payment: 12

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 12

FPAY Annual fee payment

Payment date: 20170323

Year of fee payment: 13

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 13

FPAY Annual fee payment

Payment date: 20180327

Year of fee payment: 14

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 14

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 15

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000

PC1903 Unpaid annual fee

St.27 status event code: A-4-4-U10-U13-oth-PC1903

Not in force date: 20200401

Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

PC1903 Unpaid annual fee

St.27 status event code: N-4-6-H10-H13-oth-PC1903

Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

Not in force date: 20200401

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000