EP4578564A4 - STEEL PIPE FOR PIPING, EXCELLENT IN TERMS OF RESISTANCE TO HYDROGEN EMBRACING, AS WELL AS ITS MANUFACTURING PROCESS, AND STEEL MATERIAL FOR PIPING, AS WELL AS ITS MANUFACTURING PROCESS - Google Patents

STEEL PIPE FOR PIPING, EXCELLENT IN TERMS OF RESISTANCE TO HYDROGEN EMBRACING, AS WELL AS ITS MANUFACTURING PROCESS, AND STEEL MATERIAL FOR PIPING, AS WELL AS ITS MANUFACTURING PROCESS

Info

Publication number
EP4578564A4
EP4578564A4 EP23872572.5A EP23872572A EP4578564A4 EP 4578564 A4 EP4578564 A4 EP 4578564A4 EP 23872572 A EP23872572 A EP 23872572A EP 4578564 A4 EP4578564 A4 EP 4578564A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
pipe
conditioning pipe
steel
embrustment
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.)
Pending
Application number
EP23872572.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4578564A1 (en
Inventor
Hiroshi Okano
Yoshihiro Nishihara
Naho Inoue
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.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
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 JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP4578564A1 publication Critical patent/EP4578564A1/en
Publication of EP4578564A4 publication Critical patent/EP4578564A4/en
Pending legal-status Critical Current

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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • 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
    • 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
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • 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
    • 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
    • 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
    • C21D8/10—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C21D9/085—Cooling or quenching
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/06—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
    • C22C38/08—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
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • 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
    • C21D2211/001—Austenite
    • 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)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
EP23872572.5A 2022-09-29 2023-09-28 STEEL PIPE FOR PIPING, EXCELLENT IN TERMS OF RESISTANCE TO HYDROGEN EMBRACING, AS WELL AS ITS MANUFACTURING PROCESS, AND STEEL MATERIAL FOR PIPING, AS WELL AS ITS MANUFACTURING PROCESS Pending EP4578564A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022157170 2022-09-29
PCT/JP2023/035554 WO2024071352A1 (ja) 2022-09-29 2023-09-28 耐水素脆化特性に優れたラインパイプ用鋼管、その製造方法、ラインパイプ用鋼材およびその製造方法

Publications (2)

Publication Number Publication Date
EP4578564A1 EP4578564A1 (en) 2025-07-02
EP4578564A4 true EP4578564A4 (en) 2026-02-25

Family

ID=90478072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23872572.5A Pending EP4578564A4 (en) 2022-09-29 2023-09-28 STEEL PIPE FOR PIPING, EXCELLENT IN TERMS OF RESISTANCE TO HYDROGEN EMBRACING, AS WELL AS ITS MANUFACTURING PROCESS, AND STEEL MATERIAL FOR PIPING, AS WELL AS ITS MANUFACTURING PROCESS

Country Status (7)

Country Link
EP (1) EP4578564A4 (https=)
JP (1) JP7754273B2 (https=)
KR (1) KR20250050976A (https=)
CN (1) CN119923487A (https=)
AU (1) AU2023352016A1 (https=)
CL (1) CL2025000873A1 (https=)
WO (1) WO2024071352A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7777745B1 (ja) * 2024-03-22 2025-12-01 Ｊｆｅスチール株式会社 鋼材および鋼材の製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016089187A (ja) * 2014-10-30 2016-05-23 Ｊｆｅスチール株式会社 耐ｈｉｃ性能に優れた極厚鋼板およびその製造方法
EP3112488A1 (en) * 2014-02-27 2017-01-04 JFE Steel Corporation High-strength hot-rolled steel sheet and manufacturing method therefor
JP6536761B1 (ja) * 2017-10-03 2019-07-03 日本製鉄株式会社 鋼板および鋼板の製造方法
US20220112572A1 (en) * 2019-02-13 2022-04-14 Nippon Steel Corporation Steel pipe for fuel injection pipe, and fuel injection pipe using same
US20220136469A1 (en) * 2019-02-13 2022-05-05 Nippon Steel Corporation Steel pipe for fuel injection pipe, and fuel injection pipe using same

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005002386A (ja) 2003-06-10 2005-01-06 Sumitomo Metal Ind Ltd 高圧水素環境用鋼、鋼管およびその製造方法
JP5094272B2 (ja) 2007-08-21 2012-12-12 株式会社日本製鋼所 耐高圧水素環境脆化特性に優れた低合金高強度鋼およびその製造方法
JP4251229B1 (ja) 2007-09-19 2009-04-08 住友金属工業株式会社 高圧水素ガス環境用低合金鋼および高圧水素用容器
JP5201625B2 (ja) 2008-05-13 2013-06-05 株式会社日本製鋼所 耐高圧水素環境脆化特性に優れた高強度低合金鋼およびその製造方法
JP5353501B2 (ja) 2008-07-09 2013-11-27 新日鐵住金株式会社 耐水素性に優れた常温高圧水素ガス貯蔵鋼製容器およびその製造方法
JP5278188B2 (ja) * 2009-06-19 2013-09-04 新日鐵住金株式会社 耐水素誘起割れ性および脆性亀裂伝播停止特性に優れた厚鋼板
JP5849609B2 (ja) 2010-10-28 2016-01-27 Ｊｆｅスチール株式会社 高圧水素貯蔵用鋼材
JP5531937B2 (ja) * 2010-12-09 2014-06-25 新日鐵住金株式会社 耐水素誘起割れ性、脆性亀裂伝播停止特性および耐食性に優れた厚鋼板
BR112018012400B1 (pt) 2015-12-22 2020-02-18 Jfe Steel Corporation Tubo de aço inoxidável sem costura de alta resistência para poços de petróleo e método de fabricação do mesmo
JP6859835B2 (ja) * 2017-05-01 2021-04-14 日本製鉄株式会社 鋼材及び油井用継目無鋼管
EP3904541B1 (en) 2018-12-26 2026-04-29 JFE Steel Corporation Steel for high pressure hydrogen gas environments, steel structure for high pressure hydrogen gas environments, and method for producing steel for high pressure hydrogen gas environments
WO2022209896A1 (ja) * 2021-03-30 2022-10-06 Ｊｆｅスチール株式会社 高圧水素用鋼管、高圧水素用容器および前記鋼管の製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3112488A1 (en) * 2014-02-27 2017-01-04 JFE Steel Corporation High-strength hot-rolled steel sheet and manufacturing method therefor
JP2016089187A (ja) * 2014-10-30 2016-05-23 Ｊｆｅスチール株式会社 耐ｈｉｃ性能に優れた極厚鋼板およびその製造方法
JP6536761B1 (ja) * 2017-10-03 2019-07-03 日本製鉄株式会社 鋼板および鋼板の製造方法
US20220112572A1 (en) * 2019-02-13 2022-04-14 Nippon Steel Corporation Steel pipe for fuel injection pipe, and fuel injection pipe using same
US20220136469A1 (en) * 2019-02-13 2022-05-05 Nippon Steel Corporation Steel pipe for fuel injection pipe, and fuel injection pipe using same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AUTORENKOLLEKTIV: "Spurenelemente im Stahl - Moeglichkeiten zur Beeinflussung im Smelzbetrieb", SPURENELEMENTE IN STAEHLEN, VERLAG STAHLEISEN, DUESSELDORF, DE, 1 January 1985 (1985-01-01), pages 19 - 22, XP002433212 *
See also references of WO2024071352A1 *

Also Published As

Publication number Publication date
KR20250050976A (ko) 2025-04-15
WO2024071352A1 (ja) 2024-04-04
CL2025000873A1 (es) 2025-08-01
CN119923487A (zh) 2025-05-02
AU2023352016A1 (en) 2025-02-27
JPWO2024071352A1 (https=) 2024-04-04
EP4578564A1 (en) 2025-07-02
JP7754273B2 (ja) 2025-10-15

Similar Documents

Publication Publication Date Title
EP4296395A4 (en) STEEL PIPE FOR HIGH-PRESSURE HYDROGEN, CONTAINER FOR HIGH-PRESSURE HYDROGEN, AND METHOD FOR MANUFACTURING SAID STEEL PIPE
EP4221521A4 (en) HEATING DEVICE FOR VAPORIZING DEVICE WITH AIR PREHEATING ELEMENT AND PRODUCTION METHOD THEREOF
EP4306661A4 (en) Martensitic stainless steel sheet having excellent corrosion resistance and method for manufacturing same, and martensitic stainless bladed product
EP2183430A4 (en) ASPHALT PAVING REINFORCEMENT, PAVING METHOD AND METHOD FOR CREATING A GRID WITH ASPHALT PAVING COATING
EP3781853C0 (de) Pressfitting für eine rohrverbindung und verfahren zu seiner herstellung
EP4578564A4 (en) STEEL PIPE FOR PIPING, EXCELLENT IN TERMS OF RESISTANCE TO HYDROGEN EMBRACING, AS WELL AS ITS MANUFACTURING PROCESS, AND STEEL MATERIAL FOR PIPING, AS WELL AS ITS MANUFACTURING PROCESS
EP4119688A4 (en) Steel sheet for wind power generation plants and method for producing same
EP4257720A4 (en) HIGH STRENGTH COLD ROLLED STEEL SHEET WITH EXCELLENT BENDABILITY AND MANUFACTURING METHOD THEREOF
EP4202278C0 (en) METAL OIL WELL PIPE AND METHOD FOR MANUFACTURING METAL OIL WELL PIPE
EP4506474A4 (en) Steel sheet, member, and method for manufacturing same
EP4560038A4 (en) HIGH-STRENGTH STEEL SHEET, ITS PRODUCTION PROCESS, ELEMENT AND ITS PRODUCTION PROCESS
JP2018089937A (ja) 螺旋状層構造体、及び螺旋状層構造体の製造方法
EP4265702A4 (en) ADHESIVE LAYER COMPOSITION FOR ELECTRICAL STEEL SHEET, ELECTRICAL STEEL SHEET LAMINATE AND METHOD FOR MANUFACTURING SAME
EP4332275A4 (en) SURFACE-TREATED STEEL SHEET FOR CURRENT COLLECTOR AND ITS MANUFACTURING PROCESS
EP4132765C0 (en) LIQUEFACTOR FOR AN EXTRUSION ADDITIVE MANUFACTURING SYSTEM AND MANUFACTURING METHOD THEREOF
EP4502055A4 (en) POLYACETAL RESIN MODIFIER, POLYACETAL RESIN COMPOSITION AND PRODUCTION METHOD FOR POLYACETAL RESIN MODIFIER
EP3872208C0 (en) STEEL PLATE FOR PRESSURE VESSEL HAVING EXCELLENT CRYOGENIC TOUGHNESS AND EXCELLENT ELONGATION RESISTANCE AND METHOD FOR PRODUCING THE SAME
EP4640903A4 (en) High-strength steel plate with excellent low-temperature impact resistance, manufacturing process
EP4350024A4 (en) STEEL SHEET FOR HOT STAMPING AND ITS MANUFACTURING PROCESS
EP4079918A4 (en) ABRASION RESISTANT STEEL WITH EXCELLENT CUTTING CRACK RESISTANCE, AND MANUFACTURING METHOD THEREOF
EP4479362A4 (en) Enzymatic building material for repair offering corrosion resistance and durability
EP4578981A4 (en) High-strength steel pipe material exhibiting excellent break strength in hydrogen, its manufacturing process, high-strength steel pipe and its manufacturing process
EP4253590A4 (en) COLD FORMING WIRE ROD HAVING IMPROVED STRESS CORROSION RESISTANCE CHARACTERISTICS, STEEL WIRE, AND METHOD FOR MANUFACTURING SAME
EP4295087A4 (en) Heating system comprising a resistive heat element, controller for such heating system, and method of controlling a load current through such resistive heat element
EP4261312A4 (en) STEEL PLATE FOR PRESSURE VESSEL HAVING EXCELLENT CRYOGENIC STRENGTH AND MANUFACTURING METHOD THEREOF

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20250324

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: B21B0017000000

Ipc: C22C0038420000

RIC1 Information provided on ipc code assigned before grant

Ipc: C22C 38/42 20060101AFI20251031BHEP

Ipc: C22C 38/54 20060101ALI20251031BHEP

Ipc: C22C 38/02 20060101ALI20251031BHEP

Ipc: C22C 38/58 20060101ALI20251031BHEP

Ipc: C22C 38/48 20060101ALI20251031BHEP

Ipc: C22C 38/50 20060101ALI20251031BHEP

Ipc: C22C 38/46 20060101ALI20251031BHEP

Ipc: B21B 17/00 20060101ALI20251031BHEP

Ipc: C22C 38/14 20060101ALI20251031BHEP

Ipc: C22C 38/44 20060101ALI20251031BHEP

Ipc: C22C 38/16 20060101ALI20251031BHEP

Ipc: C22C 38/12 20060101ALI20251031BHEP

Ipc: C22C 38/06 20060101ALI20251031BHEP

Ipc: C22C 38/08 20060101ALI20251031BHEP

Ipc: C21D 8/00 20060101ALI20251031BHEP

Ipc: C22C 38/04 20060101ALI20251031BHEP

Ipc: C21D 8/02 20060101ALI20251031BHEP

Ipc: C21D 9/46 20060101ALI20251031BHEP

Ipc: C21D 8/10 20060101ALI20251031BHEP

Ipc: C21D 9/08 20060101ALI20251031BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20260126