EP2576849B1 - Verfahren zur herstellung eines profilierten drahtes, hergestellt aus einem gegenüber wasserstoffversprödung beständigen stahl mit hohen mechanischen eigenschaften - Google Patents

Verfahren zur herstellung eines profilierten drahtes, hergestellt aus einem gegenüber wasserstoffversprödung beständigen stahl mit hohen mechanischen eigenschaften Download PDF

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EP2576849B1
EP2576849B1 EP11719592.5A EP11719592A EP2576849B1 EP 2576849 B1 EP2576849 B1 EP 2576849B1 EP 11719592 A EP11719592 A EP 11719592A EP 2576849 B1 EP2576849 B1 EP 2576849B1
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Prior art keywords
wire
hydrogen
embrittlement
carried out
steel
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French (fr)
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EP2576849A1 (de
Inventor
Sylvain Foissey
Christophe Bertout
Xavier Perroud
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ArcelorMittal Wire France SA
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ArcelorMittal Wire France SA
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Application filed by ArcelorMittal Wire France SA filed Critical ArcelorMittal Wire France SA
Priority to EP19166357.4A priority Critical patent/EP3527677B1/de
Priority to DK19166357.4T priority patent/DK3527677T3/da
Priority to PL11719592T priority patent/PL2576849T3/pl
Priority to SI201131760T priority patent/SI2576849T1/sl
Priority to EP23173405.4A priority patent/EP4234749A3/de
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    • 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
    • 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
    • C21D1/20—Isothermal quenching, e.g. bainitic hardening
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • 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
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
    • 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/58—Continuous furnaces for strip or wire with heating by baths
    • 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/64—Patenting furnaces
    • 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
    • C22C38/08—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
    • C22C38/16—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
    • 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
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/22—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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium 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
    • 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
    • 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
    • C21D2211/009—Pearlite

Definitions

  • the present invention relates to the field of metallurgy dedicated to the exploitation of marine oil. It relates more particularly to steel wires which can be used as reinforcement elements or structural components or as deep water immersed structures, such as flexible offshore pipes.
  • These form wires may have a round cross section, obtained by simple drawing from a wire of larger diameter. They can also, after drawing, rolling, or drawing followed by rolling, have a flat section, or profiled U, Z, T, etc.. in such a way that they can fit into each other on the edges, or be stapled together to form articulated reinforcing plies.
  • the form yarns obtained by the traditional processes have the reputation of being difficult to withstand the relatively severe acidity conditions encountered in deep water, those provided by the NACE TM 0177 standard with solution A (pH 2.7 to 4). in this case, due to a strong presence of H 2 S in the hydrocarbon transported, and even more so if the target hardness levels are greater than 28 HRC (more than 900 MPa).
  • the document FR-B-2731371 published in 1996 also deals with the production of carbon steel shaped wires for the reinforcement of flexible off-shore pipes whose resistance in acidic medium with H 2 S is sought at a high level from the general knowledge of the influence of steel microstructures on its resistance to embrittlement by hydrogen.
  • the form wire proposed in this document which contains from 0.05 to 0.8% of C and from 0.4 to 1.5% of Mn, has undergone, after shaping (drawing or drawing-rolling), a temper followed by an income in the end.
  • the metal structure obtained is essentially a martensito-bainite returned.
  • JP 59001631 A of 1984 ( DATA BASE WPI Week 198407 Thomsom Scientific, London, GB; AN 1984-039733 ) which recommends a final treatment of restoration of the long-lasting wire, in the form of an annealing which lasts several hours.
  • JP 2001 271138 A discloses a method for manufacturing wire for prestressed concrete, for spring, for bridges, for transmission lines or for submarine optical fiber cable. This wire can be galvanized after a specific heat treatment.
  • the aim of the invention is to achieve an optimal balance between a good resistance to wet embrittlement by hydrogen under the conditions of use of the shaped wire, and an increased mechanical strength thereof, and this in the framework of an industrial production which will make it possible to offer the yarn on the market in attractive economic conditions.
  • the invention which has just been defined above, is based on the triptique: "steel grade -treatment -application" and can be seen as an optimization of the knowledge acquired by the applicant in the field of wire metallurgy steel intended for use in the deep sea.
  • the invention thus finds its primary cause in the discovery of these new, less drastic conditions to be satisfied in the region of the annulus, which allow the use of form wires with higher mechanical strength.
  • the NACE quality of today can be expressed quite validly through test results less severe than those provided by the API standard (the applicant has had to adapt the test conditions to the API standard, especially pH, to adapt to the demand).
  • the NACE quality can be recognized for a steel wire that has withstood without breakage or internal cracking for one month under a continuous stress of 90% of the Re in an aqueous solution having a pH between 5 and 6.5 and subject to bubbling of a gas containing CO 2 and a few millibars of H 2 S.
  • Table I shows seven examples of chemical compositions of shades according to the invention, which is identified in the first column by a nomenclature internal to the applicant.
  • composition taken from the steel grade referenced C88 (penultimate line of Table I), whose present components meet the following precise weight ratios: C: 0.861%, Mn: 0.644% , P: 0.012%, S: 0.003%, Si: 0.303%, Al: 0.47%, Ni: 0.015%, Cr: 0.032%, Cu: 0.006%, Mo: 0.003%, and V: 0.065%.
  • the wire rod is a hot-rolled steel wire, ie in its austenitic range (typically above 900 ° C) which is then rapidly cooled in the hot rolling mill before winding it into a coil to finish off. cool to room temperature on a storage area awaiting delivery to the customer.
  • austenitic range typically above 900 ° C
  • this starting wire which is unrolled from its coil, is first subjected, from the ambient temperature, isothermal quenching. Conventionally, it will be a patenting at constant temperature around 520-600 ° C by passing in a bath of molten lead, before cooling. This patenting gives the steel wire a pearlitic microstructure, with possible traces of ferrite, but without bainite or martensite, and that it will keep until the end.
  • the wire is then drawn (round or already flat) in a "soft" manner, that is to say, as already mentioned above, so as to limit as much as possible the level of core stresses that the metal wrought will confer on it.
  • the reason for this is that damage to the core microstructure should be limited, which would create sites favorable to a preferential accumulation of hydrogen.
  • the wire may then be subjected to a cold rolling final setting, it being specified that the rate of overall hardening (drawing + rolling) will be between 50 and 80% maxi, and, if possible preferably around 60%.
  • the intermediate yarn thus obtained has an Rm of about 1900 MPa.
  • Table II below gives the final mechanical characteristics obtained for a shaped wire having undergone a fast heat treatment of restoration under the following operating conditions, indicated by the lines A to E: stay of a duration of 5 seconds , at a temperature below the temperature Ac1 of the grade of steel considered and given in the second column of the table, before brutal cooling with water.
  • the other columns indicate respectively the average ultimate limit Rm, the average yield strength Re, the average elongation rate at break A% of the treated wire resulting from the thermomechanical operations applied, and the Re / Rm ratio.

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

Claims (2)

  1. Verfahren für die Herstellung eines Formdrahts aus geringfügig legiertem Kohlenstoffstahl mit hohen mechanischen Eigenschaften und beständig gegen Versprödung bei Wasserstoff, wobei der Formdraht dazu bestimmt ist, für die Bildung biegsamer Leitungen auf dem Gebiet der Off-Shore-Erdölgewinnung verwendet zu werden, dadurch gekennzeichnet, dass er die folgende chemische Zusammensetzung, ausgedrückt in Gewichtsprozent der Gesamtmasse, aufweist:
    0,75 ≤ C % ≤ 0,95 und
    0,30 ≤ Mn % ≤ 0,85
    mit Cr ≤ 0,4 %; V ≤ 0,16 %; Si ≤ 1,40 %,
    und eventuell nicht mehr als 0,06 % Al, nicht mehr als 0,1 % Ni und nicht mehr als 0,1 % Cu, wobei der Rest durch Eisen und die unvermeidlichen Verunreinigungen, die von der Bearbeitung des Metalls im flüssigen Zustand stammen, gegeben ist;
    und dass er ausgehend von einem heißlaminierten Vordraht in seinem austenitischen Bereich oberhalb von 900 °C, der dann auf Umgebungstemperatur abgekühlt wird und dann einen Durchmesser von 5 bis 30 mm aufweist, durch Beaufschlagen des Vordrahts zunächst mit einer thermomechanischen Bearbeitung, die in zwei aufeinander folgenden und geordneten Schritten ausgeführt wird, nämlich einer isothermischen Abschreckung, die ihm eine homogene perlitische Mikrostruktur verleiht, gefolgt von einem mechanischen Transformationsvorgang im kalten Zustand, der mit einem globalen Kalthärtungsanteil im Bereich von maximal 50 bis 80 % ausgeführt wird, um dem Draht seine endgültige Form zu verleihen, erhalten wird und dass der somit erhaltene Formdraht anschließend einer Wiederherstellungs-Wärmebehandlung unterworfen wird, die bei einer Temperatur im Bereich von 410 bis 710 °C über eine Dauer, die eine Minute nicht überschreitet, ausgeführt wird, was ihm einen Bruchwiderstand Rm von wenigstens 1300 MPa verleiht.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass seine isothermische Abschreckung ein Bleipatentierungsvorgang ist.
EP11719592.5A 2010-05-31 2011-03-23 Verfahren zur herstellung eines profilierten drahtes, hergestellt aus einem gegenüber wasserstoffversprödung beständigen stahl mit hohen mechanischen eigenschaften Active EP2576849B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP19166357.4A EP3527677B1 (de) 2010-05-31 2011-03-23 Formdraht aus stahl mit hohen mechanischen eigenschaften und beständigkeit gegen wasserstoff-versprödung
DK19166357.4T DK3527677T3 (da) 2010-05-31 2011-03-23 Formtråd i metal med høje mekaniske egenskaber og modstandsdygtighed mod forringelse på grund af vand
PL11719592T PL2576849T3 (pl) 2010-05-31 2011-03-23 Sposób wytwarzania drutu profilowego ze stali o wysokich właściwościach mechanicznych odpornego na kruchość wodorową
SI201131760T SI2576849T1 (sl) 2010-05-31 2011-03-23 Postopek za izdelavo oblikovane žice iz jekla z visokimi mehanskimi karakteristikami, odpornega proti vodikovi krhkosti
EP23173405.4A EP4234749A3 (de) 2010-05-31 2011-03-23 Formdraht aus stahl mit hohen mechanischen eigenschaften und beständigkeit gegen wasserstoff-versprödung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1002286A FR2960556B3 (fr) 2010-05-31 2010-05-31 Fil de forme en acier a hautes caracteristiques mecaniques resistant a la fragilisation par l'hydrogene
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JP2013534966A (ja) 2013-09-09
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KR20150086561A (ko) 2015-07-28
BR112012030715A2 (pt) 2016-11-01
TR201910939T4 (tr) 2019-08-21
BR112012030715B1 (pt) 2019-03-19
HUE044508T2 (hu) 2019-10-28
PT2576849T (pt) 2019-07-30
EP2576849A1 (de) 2013-04-10
SI3527677T1 (sl) 2023-11-30
AU2011260159A1 (en) 2013-01-10
CA2801355A1 (en) 2011-12-08
RU2533573C2 (ru) 2014-11-20
MX2012013947A (es) 2013-04-11
UA107705C2 (en) 2015-02-10
EP4234749A3 (de) 2024-01-17
KR20160145203A (ko) 2016-12-19
CN105714198B (zh) 2018-02-06
RU2012157550A (ru) 2014-07-20
KR101982390B1 (ko) 2019-05-27
US9249486B2 (en) 2016-02-02
EP4234749A2 (de) 2023-08-30
EP3527677A1 (de) 2019-08-21
JP6174485B2 (ja) 2017-08-02
KR20130033377A (ko) 2013-04-03
ZA201209055B (en) 2013-07-01
ES2739394T3 (es) 2020-01-30
FR2960556B3 (fr) 2012-05-11
CA2801355C (en) 2016-05-10
US20130186521A1 (en) 2013-07-25
MX341738B (es) 2016-08-31
PT3527677T (pt) 2023-09-07
HUE062854T2 (hu) 2023-12-28
FI3527677T3 (fi) 2023-09-12
SI2576849T1 (sl) 2019-09-30
WO2011151532A1 (fr) 2011-12-08
CN102959100A (zh) 2013-03-06
AU2011260159B2 (en) 2014-05-29
EP3527677B1 (de) 2023-06-28
US20150361535A1 (en) 2015-12-17
DK2576849T3 (da) 2019-07-29
FR2960556A3 (fr) 2011-12-02
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US9617625B2 (en) 2017-04-11
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