CN115917028A - 不锈钢无缝钢管及其制造方法 - Google Patents

不锈钢无缝钢管及其制造方法 Download PDF

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Publication number
CN115917028A
CN115917028A CN202180043643.2A CN202180043643A CN115917028A CN 115917028 A CN115917028 A CN 115917028A CN 202180043643 A CN202180043643 A CN 202180043643A CN 115917028 A CN115917028 A CN 115917028A
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steel pipe
seamless steel
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contained
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Chinese (zh)
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加茂祐一
柚贺正雄
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JFE Steel Corp
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JFE Steel Corp
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/004Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • C21D1/25Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • 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
    • 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/004Heat treatment of ferrous alloys containing Cr and Ni
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/10Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C21D9/085Cooling or quenching
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/001Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/005Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/008Ferrous alloys, e.g. steel alloys containing tin
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/52Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/60Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C21D2211/001Austenite
    • 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
    • C21D2211/008Martensite

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  • 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)
  • Heat Treatment Of Articles (AREA)
CN202180043643.2A 2020-07-06 2021-06-10 不锈钢无缝钢管及其制造方法 Pending CN115917028A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020116091 2020-07-06
JP2020-116091 2020-07-06
PCT/JP2021/022014 WO2022009598A1 (ja) 2020-07-06 2021-06-10 ステンレス継目無鋼管およびその製造方法

Publications (1)

Publication Number Publication Date
CN115917028A true CN115917028A (zh) 2023-04-04

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CN202180043643.2A Pending CN115917028A (zh) 2020-07-06 2021-06-10 不锈钢无缝钢管及其制造方法

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Country Link
US (1) US20230340632A1 (https=)
EP (1) EP4123037A4 (https=)
JP (1) JP7226571B2 (https=)
CN (1) CN115917028A (https=)
AR (1) AR122877A1 (https=)
MX (1) MX2022016143A (https=)
WO (1) WO2022009598A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4636112A1 (en) * 2023-04-06 2025-10-22 JFE Steel Corporation Seamless stainless steel pipe and production method therefor
WO2025258259A1 (ja) * 2024-06-11 2025-12-18 Jfeスチール株式会社 ステンレス継目無鋼管およびその製造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105324495A (zh) * 2013-07-09 2016-02-10 新日铁住金株式会社 高Cr钢管的制造方法
JP6156609B1 (ja) * 2016-02-08 2017-07-05 Jfeスチール株式会社 油井用高強度ステンレス継目無鋼管およびその製造方法
CN109563581A (zh) * 2016-07-27 2019-04-02 杰富意钢铁株式会社 油井用高强度不锈钢无缝钢管及其制造方法
CN110312816A (zh) * 2017-02-24 2019-10-08 杰富意钢铁株式会社 油井用高强度不锈钢无缝钢管及其制造方法

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1514950B1 (en) * 2002-06-19 2011-09-28 JFE Steel Corporation Stainless-steel pipe for oil well and process for producing the same
CA2532222C (en) * 2003-07-22 2013-01-29 Sumitomo Metal Industries, Ltd. Martensitic stainless steel
JP5109222B2 (ja) * 2003-08-19 2012-12-26 Jfeスチール株式会社 耐食性に優れた油井用高強度ステンレス継目無鋼管およびその製造方法
BRPI0416001B1 (pt) * 2003-10-31 2017-04-11 Jfe Steel Corp tubo de aço inoxidável sem costura para tubulações de condução
JP4915121B2 (ja) * 2006-03-31 2012-04-11 住友金属工業株式会社 二相ステンレス鋼継目無管の製造方法
JP4577457B2 (ja) * 2008-03-28 2010-11-10 住友金属工業株式会社 油井管に用いられるステンレス鋼
AR073884A1 (es) * 2008-10-30 2010-12-09 Sumitomo Metal Ind Tubo de acero inoxidable de alta resistencia excelente en resistencia a la fisuracion bajo tension por sulfuros y a la corrosion de gas de acido carbonico en alta temperatura.
AR076669A1 (es) * 2009-05-18 2011-06-29 Sumitomo Metal Ind Acero inoxidable para pozos de petroleo, tubo de acero inoxidable para pozos de petroleo, y metodo de fabricacion de acero inoxidable para pozos de petroleo
EP2562284B1 (en) * 2010-04-19 2020-06-03 JFE Steel Corporation Cr-CONTAINING STEEL PIPE FOR LINE PIPE AND HAVING EXCELLENT INTERGRANULAR STRESS CORROSION CRACKING RESISTANCE AT WELDING-HEAT-AFFECTED PORTION
JP4911266B2 (ja) * 2010-04-28 2012-04-04 住友金属工業株式会社 高強度油井用ステンレス鋼及び高強度油井用ステンレス鋼管
CN104204253B (zh) * 2012-03-26 2017-03-29 新日铁住金株式会社 油井用不锈钢及油井用不锈钢管
JP5488643B2 (ja) * 2012-05-31 2014-05-14 Jfeスチール株式会社 油井管用高強度ステンレス鋼継目無管およびその製造方法
JP5967066B2 (ja) * 2012-12-21 2016-08-10 Jfeスチール株式会社 耐食性に優れた油井用高強度ステンレス継目無鋼管およびその製造方法
EP2947167B1 (en) * 2013-01-16 2016-12-07 JFE Steel Corporation Stainless steel seamless tube for use in oil well and manufacturing process therefor
EP3042968B1 (en) * 2013-09-04 2020-12-09 JFE Steel Corporation Method of manufacturing a high-strength stainless steel pipe and high-strength stainless steel pipe
CN106414785B (zh) * 2014-05-21 2018-10-09 杰富意钢铁株式会社 油井用高强度不锈钢无缝钢管及其制造方法
JP6237873B2 (ja) * 2014-11-19 2017-11-29 Jfeスチール株式会社 油井用高強度ステンレス継目無鋼管
JP6008062B1 (ja) * 2014-11-27 2016-10-19 Jfeスチール株式会社 二相ステンレス継目無鋼管の製造方法
EP3112492A1 (en) * 2015-06-29 2017-01-04 Vallourec Oil And Gas France Corrosion resistant steel, method for producing said steel and its use thereof
MX2018000331A (es) * 2015-07-10 2018-03-14 Jfe Steel Corp Tuberia de acero inoxidable sin costura de alta resistencia y metodo de fabricacion de tuberia de acero inoxidable sin costura de alta resistencia.
JP6409827B2 (ja) * 2015-08-18 2018-10-24 Jfeスチール株式会社 油井用継目無ステンレス鋼管の製造方法
CN105463335A (zh) * 2015-12-14 2016-04-06 天津钢管集团股份有限公司 马氏体相变强化型双相不锈钢及其制造无缝钢管的方法
MX2018011883A (es) 2016-03-29 2018-12-17 Jfe Steel Corp Tubo de acero inoxidable sin soldadura de alta resistencia para articulos tubulares para la industria del petroleo.
US11268161B2 (en) * 2017-01-13 2022-03-08 Jfe Steel Corporation High strength seamless stainless steel pipe and method for producing same
US11286548B2 (en) * 2017-08-15 2022-03-29 Jfe Steel Corporation High-strength stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same
JP7264596B2 (ja) * 2018-03-19 2023-04-25 日本製鉄株式会社 鋼材
US12291766B2 (en) * 2019-10-01 2025-05-06 Jfe Steel Corporation Stainless steel seamless pipe and method for manufacturing same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105324495A (zh) * 2013-07-09 2016-02-10 新日铁住金株式会社 高Cr钢管的制造方法
JP6156609B1 (ja) * 2016-02-08 2017-07-05 Jfeスチール株式会社 油井用高強度ステンレス継目無鋼管およびその製造方法
CN109563581A (zh) * 2016-07-27 2019-04-02 杰富意钢铁株式会社 油井用高强度不锈钢无缝钢管及其制造方法
CN110312816A (zh) * 2017-02-24 2019-10-08 杰富意钢铁株式会社 油井用高强度不锈钢无缝钢管及其制造方法

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Publication number Publication date
JPWO2022009598A1 (https=) 2022-01-13
WO2022009598A1 (ja) 2022-01-13
MX2022016143A (es) 2023-02-09
US20230340632A1 (en) 2023-10-26
EP4123037A4 (en) 2024-10-02
AR122877A1 (es) 2022-10-12
BR112022025826A2 (pt) 2023-01-17
JP7226571B2 (ja) 2023-02-21
EP4123037A1 (en) 2023-01-25

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