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AR107720A1 - HIGH-STRENGTH AND LOW-ALLOCATED STEEL-FREE STEEL PIPE FOR TUBULAR PRODUCTS IN THE OIL INDUSTRY - Google Patents

HIGH-STRENGTH AND LOW-ALLOCATED STEEL-FREE STEEL PIPE FOR TUBULAR PRODUCTS IN THE OIL INDUSTRY

Info

Publication number
AR107720A1
AR107720A1 ARP170100470A ARP170100470A AR107720A1 AR 107720 A1 AR107720 A1 AR 107720A1 AR P170100470 A ARP170100470 A AR P170100470A AR P170100470 A ARP170100470 A AR P170100470A AR 107720 A1 AR107720 A1 AR 107720A1
Authority
AR
Argentina
Prior art keywords
steel pipe
strength
low
less
tubular products
Prior art date
Application number
ARP170100470A
Other languages
Spanish (es)
Inventor
Hiroki Ota
Yasuhide Ishiguro
Masao Yuga
Mitsuhiro Okatsu
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 AR107720A1 publication Critical patent/AR107720A1/en

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Classifications

    • 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
    • C22C38/32Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/002Heat treatment of ferrous alloys containing Cr
    • 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
    • C21D6/005Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/008Heat treatment of ferrous alloys containing Si
    • 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
    • C21D6/02Hardening by precipitation
    • 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
    • C21D8/10Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • C21D8/105Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
    • 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
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • 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
    • C22C38/02Ferrous 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
    • C22C38/20Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/22Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/24Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/26Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/28Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • 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
    • C21D2211/002Bainite
    • 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
    • C21D2211/004Dispersions; Precipitations
    • 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
    • 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
    • C21D8/10Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

Se brinda una tubería de acero sin costura de alta resistencia y de baja aleación para productos tubulares de la industria del petróleo que tiene una excelente resistencia al SSC. Es una tubería de acero sin costura de alta resistencia y de baja aleación para productos tubulares de la industria del petróleo, que comprende una composición que contiene, en términos de % en masa, C: 0,25 al 0,31%, Si: 0,01 al 0,35%, Mn: 0,45 al 0,70%, P: 0,010% o menos, S: 0,001% o menos, O: 0,0015% o menos, Al: 0,015 al 0,080%, Cu: 0,02 al 0,09%, Cr: 0,8 al 1,5%, Mo: 1,1 al 1,6%, V: 0,01 al 0,06%, Nb: 0,005 al 0,015%, B: 0,0015 al 0,0030%, Ti: 0,005 al 0,020%, y N: 0,005% o menos, y el valor de la relación entre el contenido de Ti y el contenido de N (Ti/N) oscila entre 3,0 y 4,0, siendo el resto Fe e impurezas inevitables, la tubería de acero tiene un valor (s₀,₇/s₀,₄), como relación entre el esfuerzo a una deformación del 0,7% y el esfuerzo a una deformación del 0,4% en una curva de esfuerzo-deformación, de 1,02 o menos y un límite elástico de 861 MPa o más.A high strength and low alloy seamless steel pipe is provided for tubular products of the petroleum industry that has excellent SSC resistance. It is a high-strength and low-alloy seamless steel pipe for tubular products of the petroleum industry, which comprises a composition containing, in terms of mass%, C: 0.25 to 0.31%, Si: 0.01 to 0.35%, Mn: 0.45 to 0.70%, P: 0.010% or less, S: 0.001% or less, O: 0.0015% or less, Al: 0.015 to 0.080%, Cu: 0.02 to 0.09%, Cr: 0.8 to 1.5%, Mo: 1.1 to 1.6%, V: 0.01 to 0.06%, Nb: 0.005 to 0.015% , B: 0.0015 to 0.0030%, Ti: 0.005 to 0.020%, and N: 0.005% or less, and the value of the relationship between the content of Ti and the content of N (Ti / N) ranges from 3.0 and 4.0, the rest being Fe and impurities unavoidable, the steel pipe has a value (s₀, ₇ / s₀, ₄), as a ratio between the stress at a strain of 0.7% and the stress at a deformation of 0.4% in a stress-strain curve of 1.02 or less and an elastic limit of 861 MPa or more.

ARP170100470A 2016-02-29 2017-02-24 HIGH-STRENGTH AND LOW-ALLOCATED STEEL-FREE STEEL PIPE FOR TUBULAR PRODUCTS IN THE OIL INDUSTRY AR107720A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016036575 2016-02-29

Publications (1)

Publication Number Publication Date
AR107720A1 true AR107720A1 (en) 2018-05-23

Family

ID=59743630

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP170100470A AR107720A1 (en) 2016-02-29 2017-02-24 HIGH-STRENGTH AND LOW-ALLOCATED STEEL-FREE STEEL PIPE FOR TUBULAR PRODUCTS IN THE OIL INDUSTRY

Country Status (7)

Country Link
US (1) US20190048444A1 (en)
EP (1) EP3425076B1 (en)
AR (1) AR107720A1 (en)
BR (1) BR112018017250B1 (en)
MX (1) MX386977B (en)
NZ (1) NZ744668A (en)
WO (1) WO2017149571A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3202943B1 (en) 2014-12-24 2019-06-19 JFE Steel Corporation High-strength seamless steel pipe for oil wells, and production method for high-strength seamless steel pipe for oil wells
JP5943165B1 (en) 2014-12-24 2016-06-29 Jfeスチール株式会社 High strength seamless steel pipe for oil well and method for producing the same
US10975450B2 (en) * 2016-02-29 2021-04-13 Jfe Steel Corporation Low alloy high strength thick-walled seamless steel pipe for oil country tubular goods
WO2017149570A1 (en) 2016-02-29 2017-09-08 Jfeスチール株式会社 Low-alloy, high-strength seamless steel pipe for oil well
US11313007B2 (en) 2016-10-17 2022-04-26 Jfe Steel Corporation High-strength seamless steel pipe for oil country tubular goods, and method for producing the same
US11773460B2 (en) * 2018-04-09 2023-10-03 Nippon Steel Corporation Steel pipe and method for producing steel pipe
JP7633586B1 (en) * 2023-04-06 2025-02-20 日本製鉄株式会社 Steel
WO2025033002A1 (en) * 2023-08-07 2025-02-13 日本製鉄株式会社 Steel material
WO2025033003A1 (en) * 2023-08-07 2025-02-13 日本製鉄株式会社 Steel material

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06220536A (en) * 1993-01-22 1994-08-09 Nkk Corp Production of high strength steel pipe excellent in sulfide stress corrosion cracking resistance
JP3562353B2 (en) 1998-12-09 2004-09-08 住友金属工業株式会社 Oil well steel excellent in sulfide stress corrosion cracking resistance and method for producing the same
JP3543708B2 (en) 1999-12-15 2004-07-21 住友金属工業株式会社 Oil well steel with excellent resistance to sulfide stress corrosion cracking and method for producing oil well steel pipe using the same
JP3666372B2 (en) 2000-08-18 2005-06-29 住友金属工業株式会社 Oil well steel with excellent resistance to sulfide stress corrosion cracking and its manufacturing method
JP4140556B2 (en) * 2004-06-14 2008-08-27 住友金属工業株式会社 Low alloy steel for oil well pipes with excellent resistance to sulfide stress cracking
JP4135691B2 (en) * 2004-07-20 2008-08-20 住友金属工業株式会社 Nitride inclusion control steel
WO2008123425A1 (en) * 2007-03-30 2008-10-16 Sumitomo Metal Industries, Ltd. Low alloy steel for the pipe for oil well use and seamless steel pipe
CN101928889A (en) * 2009-06-23 2010-12-29 宝山钢铁股份有限公司 Steel for resisting sulfide corrosion and manufacturing method thereof
CN102409240B (en) * 2010-09-21 2013-06-19 宝山钢铁股份有限公司 Hydrogen sulfide corrosion-resistant steel for petroleum drill rod and manufacturing method for hydrogen sulfide corrosion-resistant steel
CN102409241A (en) * 2010-09-25 2012-04-11 宝山钢铁股份有限公司 Steel for oil casing pipe, oil casing pipe and manufacturing methods thereof
JP2013129879A (en) * 2011-12-22 2013-07-04 Jfe Steel Corp High-strength seamless steel tube for oil well with superior sulfide stress cracking resistance, and method for producing the same
UA112792C2 (en) * 2012-03-07 2016-10-25 Ніппон Стіл Енд Сумітомо Метал Корпорейшн METHOD OF OBTAINING HIGH-STRENGTH STEEL MATERIAL WITH HIGH RESISTANCE TO SULFID CRASHING
JP5958450B2 (en) * 2012-11-27 2016-08-02 Jfeスチール株式会社 Low-alloy high-strength seamless steel pipe with excellent resistance to sulfide stress corrosion cracking and its manufacturing method
WO2015190377A1 (en) * 2014-06-09 2015-12-17 新日鐵住金株式会社 Low alloy steel pipe for oil well

Also Published As

Publication number Publication date
EP3425076A4 (en) 2019-04-24
EP3425076A1 (en) 2019-01-09
BR112018017250A2 (en) 2019-05-14
MX2018010363A (en) 2018-12-06
US20190048444A1 (en) 2019-02-14
NZ744668A (en) 2019-11-29
BR112018017250B1 (en) 2021-10-05
MX386977B (en) 2025-03-19
EP3425076B1 (en) 2021-11-10
WO2017149571A1 (en) 2017-09-08

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