AR085299A1 - Un tubo de acero y metodo para fabricarlo - Google Patents

Un tubo de acero y metodo para fabricarlo

Info

Publication number
AR085299A1
AR085299A1 ARP120100568A ARP120100568A AR085299A1 AR 085299 A1 AR085299 A1 AR 085299A1 AR P120100568 A ARP120100568 A AR P120100568A AR P120100568 A ARP120100568 A AR P120100568A AR 085299 A1 AR085299 A1 AR 085299A1
Authority
AR
Argentina
Prior art keywords
weight
steel tube
temperature
steel
approximately
Prior art date
Application number
ARP120100568A
Other languages
English (en)
Original Assignee
Siderca Sa Ind & Com
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 Siderca Sa Ind & Com filed Critical Siderca Sa Ind & Com
Publication of AR085299A1 publication Critical patent/AR085299A1/es

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/02—Rigid pipes of metal
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
    • 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
    • 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
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C21D9/14—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/42—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

Reivindicación 1: Un tubo de acero, caracterizado porque comprende: de aproximadamente 0,25% en peso a aproximadamente 0,35% en peso de carbono; de aproximadamente 0,30% en peso a aproximadamente 0,70% en peso de manganeso; de aproximadamente 0,10% en peso a aproximadamente 0,30% en peso de silicio; de aproximadamente 0,90% en peso a aproximadamente 1,70% en peso de cromo; de aproximadamente 0,60% en peso a aproximadamente 1,00% en peso de molibdeno; de aproximadamente 0,050% en peso a aproximadamente 0,150% en peso de vanadio; y de aproximadamente 0,01% en peso a aproximadamente 0,04% en peso de aluminio; donde el resto de la composición comprende hierro e impurezas; en donde el tubo de acero se procesa de tal manera que tenga un límite elástico mayor a aproximadamente 175 ksi y en donde la energía de Charpy con entalla en V es mayor o igual a aproximadamente 50 J/cm2 en la dirección transversal y 65 J/cm2 en la dirección longitudinal a una temperatura aproximada a la temperatura ambiente.Reivindicación 12: Un método para fabricar un tubo de acero, caracterizado porque comprende: proveer una composición de acero al carbono; formar la composición de acero en un tubo; calentar el tubo de acero formado en una primera operación de calentamiento a una primera temperatura; templar el tubo de acero formado en una primera operación de temple a partir de la primera temperatura a una primera velocidad tal que la microestructura del acero templado sea mayor o igual a aproximadamente 95% de martensita en volumen; calentar el tubo de acero formado después de la primera operación de temple en una segunda operación de calentamiento a una segunda temperatura menor a la primera temperatura; templar el tubo de acero formado en una segunda operación de temple a partir de la segunda temperatura a una segunda velocidad tal que la microestructura del acero templado sea mayor o igual a aproximadamente 95% de martensita en volumen, en donde el tubo de acero formado tiene un tamaño de grano menor en comparación con el tamaño de grano después de la primera operación de temple; y revenir el tubo de acero formado después de la segunda operación de temple al calentar el tubo de acero formado a una tercera temperatura menor a aproximadamente 550ºC; en donde el tubo de acero después del revenido tiene un límite elástico mayor a aproximadamente 175 ksi y en donde la energía de Charpy con entalla en V es mayor o igual a aproximadamente 50 J/cm2 en la dirección transversal y 65 J/cm2 en la dirección longitudinal a una temperatura aproximada a la temperatura ambiente.
ARP120100568A 2011-02-18 2012-02-17 Un tubo de acero y metodo para fabricarlo AR085299A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/031,133 US8414715B2 (en) 2011-02-18 2011-02-18 Method of making ultra high strength steel having good toughness

Publications (1)

Publication Number Publication Date
AR085299A1 true AR085299A1 (es) 2013-09-18

Family

ID=45656035

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP120100568A AR085299A1 (es) 2011-02-18 2012-02-17 Un tubo de acero y metodo para fabricarlo

Country Status (7)

Country Link
US (2) US8414715B2 (es)
EP (1) EP2495342B1 (es)
CN (1) CN102676930B (es)
AR (1) AR085299A1 (es)
BR (1) BR102012003528B1 (es)
DK (1) DK2495342T3 (es)
MX (1) MX2012002116A (es)

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US9188252B2 (en) 2015-11-17
US20130199674A1 (en) 2013-08-08
CN102676930B (zh) 2018-01-23
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MX2012002116A (es) 2012-09-05
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