EP4234749A2 - Formdraht aus stahl mit hohen mechanischen eigenschaften und beständigkeit gegen wasserstoff-versprödung - Google Patents

Formdraht aus stahl mit hohen mechanischen eigenschaften und beständigkeit gegen wasserstoff-versprödung Download PDF

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Publication number
EP4234749A2
EP4234749A2 EP23173405.4A EP23173405A EP4234749A2 EP 4234749 A2 EP4234749 A2 EP 4234749A2 EP 23173405 A EP23173405 A EP 23173405A EP 4234749 A2 EP4234749 A2 EP 4234749A2
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EP
European Patent Office
Prior art keywords
shaped wire
wire
shaped
mpa
high mechanical
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.)
Withdrawn
Application number
EP23173405.4A
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English (en)
French (fr)
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EP4234749A3 (de
Inventor
Sylvain Foissey
Christophe Bertout
Xavier Perroud
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.)
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
Publication of EP4234749A2 publication Critical patent/EP4234749A2/de
Publication of EP4234749A3 publication Critical patent/EP4234749A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties of ferrous metals or ferrous alloys 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
    • 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
    • C21D9/54—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
    • C22C38/08—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 maritime oil exploitation. It relates more particularly to steel wires which can be used as reinforcing or structural elements for components or works submerged in deep water, such as flexible offshore pipes.
  • These shaped wires can have a round cross section, obtained by simple drawing from a wire rod of larger diameter. They can also, after drawing, rolling, or drawing followed by rolling, have a flat section, or profiled in U, Z, T, etc. so as to be able to fit together in banks or be stapled together to form articulated reinforcing layers.
  • JP H11 256274 A JP 2001 271138 A , JP 2004 307929 A , And JP 2008 261027 A disclose examples of steel wires.
  • carbon-manganese steels containing 0.15-0.80% C (by weight) with an initial pearlito-ferritic structure are usually used in known manner.
  • an appropriate stress-relieving heat treatment is applied to it to obtain the required hardness. It is through this level of hardness that the nominal criteria for use are met, for example the ISO 15156 standard stipulating that these grades of Mn steel have resistance under stress in an H 2 S environment suitable for use. "shaped thread" retained here, if the hardness of the thread is less than or equal to 22 HRC.
  • the shaped yarns obtained by traditional processes have the reputation of being difficult to withstand the relatively severe acidity conditions encountered in deep waters, those provided for 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 all the 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 relates to the production of shaped wires, in carbon steel, for the reinforcement of flexible off-shore pipes whose resistance in an acid environment with H 2 S is sought at a high level based on general knowledge of the influence of steel microstructures on its resistance to hydrogen embrittlement.
  • the shaped wire proposed in this document which contains 0.05 to 0.8% C and 0.4 to 1.5% Mn, has undergone, after shaping (drawing or drawing-rolling), quenching followed by final tempering.
  • the metal structure obtained is essentially a tempered martensito-bainitic.
  • JP 59001631 A from 1984 (DATA BASE WPI Week 198407 Thomsom Scientific, London, GB; AN 1984-039733) which recommends a long-term final wire restoration treatment, in the form of an annealing which lasts several hours.
  • the invention proposes here to achieve an optimal balance between a necessary good resistance to wet embrittlement by hydrogen under the conditions of use of the shaped wire, and an increased mechanical resistance of the latter, and this in the framework of industrial production which will make it possible to offer the yarn on the market under attractive economic conditions.
  • the subject of the invention is a shaped yarn according to claim 1, which may optionally comprise the characteristics of claim 2.
  • the invention also relates to a shaped yarn according to claim 3, which may optionally comprise the characteristics of claim 4.
  • the invention also relates to a shaped yarn according to claim 5, which may optionally comprise the characteristics of claim 6.
  • the invention which has just been defined above, is based on the triptych: "steel grade - treatment - application" and can be seen as an optimization of the knowledge acquired by the applicant in the field of wire metallurgy. of steel intended for use in the deep sea.
  • the invention thus finds its root cause in the discovery of these new, less drastic conditions to be satisfied in the area of the ring finger, which allow the use of shaped wires with higher mechanical strength.
  • the NACE quality can be expressed quite validly through less severe test results than those provided for by the API standard (the applicant therefore had to adapt the test conditions in relation to the API standard, in particular pH, to adapt to demand).
  • the NACE quality can be recognized by a steel wire having withstood without breakage or internal cracking for one month under a continuous stress of 90% of Re in an aqueous solution having a pH between 5 and 6.5 and subjected to bubbling of a gas containing CO 2 and a few millibars of H 2 S.
  • Table I presents seven examples of chemical compositions of shades in accordance with the invention, which are identified in the first column by a nomenclature internal to the applicant.
  • the wire rod is a hot rolled steel wire, i.e. in its austenitic range (classically above 900°C) which is then rapidly cooled in the hot rolling process before winding it into a coil to finish cool to room temperature in a storage area awaiting delivery to customers.
  • austenitic range classically above 900°C
  • this starting wire rod which is unwound from its reel, first undergoes, from ambient temperature, an isothermal quenching. Conventionally, this will involve patenting at a constant temperature of around 520-600°C by passing through 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, which 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 working of the metal will give it.
  • the reason for this is that damage to the core microstructure should be limited, damage which would create favorable sites for preferential accumulation of hydrogen.
  • the wire may then undergo cold rolling to bring it to final dimensions, it being specified that the overall hardening rate (drawing+rolling) will be between 50 and 80% maximum, and, if possible, preferably around 60%.
  • the intermediate wire thus obtained has an Rm of approximately 1900 MPa.
  • Table II below gives the final mechanical characteristics obtained for a shaped wire having undergone a rapid heat treatment for restoration under the following operating conditions, marked by lines A to E: stay for a period of 5 seconds , at a temperature lower than the Ac1 temperature of the steel grade considered and given in the second column of the table, before sudden cooling in water.
  • the other columns indicate respectively the average breaking strength Rm, the average yield strength Re, the average rate of elongation at breaking A% of the treated yarn resulting from the thermomechanical operations applied, and the Re/Rm ratio.

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  • 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 Strip Materials And Filament Materials (AREA)
  • Metal Extraction Processes (AREA)
  • Heat Treatment Of Articles (AREA)
EP23173405.4A 2010-05-31 2011-03-23 Formdraht aus stahl mit hohen mechanischen eigenschaften und beständigkeit gegen wasserstoff-versprödung Withdrawn EP4234749A3 (de)

Applications Claiming Priority (4)

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
PCT/FR2011/000167 WO2011151532A1 (fr) 2010-05-31 2011-03-23 Fil de forme en acier à hautes caractéristiques mécaniques résistant à la fragilisation par l'hydrogène
EP19166357.4A EP3527677B1 (de) 2010-05-31 2011-03-23 Formdraht aus stahl mit hohen mechanischen eigenschaften und beständigkeit gegen wasserstoff-versprödung
EP11719592.5A EP2576849B1 (de) 2010-05-31 2011-03-23 Verfahren zur herstellung eines profilierten drahtes, hergestellt aus einem gegenüber wasserstoffversprödung beständigen stahl mit hohen mechanischen eigenschaften

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP19166357.4A Division EP3527677B1 (de) 2010-05-31 2011-03-23 Formdraht aus stahl mit hohen mechanischen eigenschaften und beständigkeit gegen wasserstoff-versprödung
EP19166357.4A Division-Into EP3527677B1 (de) 2010-05-31 2011-03-23 Formdraht aus stahl mit hohen mechanischen eigenschaften und beständigkeit gegen wasserstoff-versprödung
EP11719592.5A Division EP2576849B1 (de) 2010-05-31 2011-03-23 Verfahren zur herstellung eines profilierten drahtes, hergestellt aus einem gegenüber wasserstoffversprödung beständigen stahl mit hohen mechanischen eigenschaften

Publications (2)

Publication Number Publication Date
EP4234749A2 true EP4234749A2 (de) 2023-08-30
EP4234749A3 EP4234749A3 (de) 2024-01-17

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ID=43063841

Family Applications (3)

Application Number Title Priority Date Filing Date
EP11719592.5A Active EP2576849B1 (de) 2010-05-31 2011-03-23 Verfahren zur herstellung eines profilierten drahtes, hergestellt aus einem gegenüber wasserstoffversprödung beständigen stahl mit hohen mechanischen eigenschaften
EP19166357.4A Active EP3527677B1 (de) 2010-05-31 2011-03-23 Formdraht aus stahl mit hohen mechanischen eigenschaften und beständigkeit gegen wasserstoff-versprödung
EP23173405.4A Withdrawn EP4234749A3 (de) 2010-05-31 2011-03-23 Formdraht aus stahl mit hohen mechanischen eigenschaften und beständigkeit gegen wasserstoff-versprödung

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EP11719592.5A Active EP2576849B1 (de) 2010-05-31 2011-03-23 Verfahren zur herstellung eines profilierten drahtes, hergestellt aus einem gegenüber wasserstoffversprödung beständigen stahl mit hohen mechanischen eigenschaften
EP19166357.4A Active EP3527677B1 (de) 2010-05-31 2011-03-23 Formdraht aus stahl mit hohen mechanischen eigenschaften und beständigkeit gegen wasserstoff-versprödung

Country Status (22)

Country Link
US (2) US9249486B2 (de)
EP (3) EP2576849B1 (de)
JP (1) JP6174485B2 (de)
KR (3) KR101982390B1 (de)
CN (2) CN102959100A (de)
AU (1) AU2011260159B2 (de)
BR (1) BR112012030715B1 (de)
CA (1) CA2801355C (de)
DK (2) DK3527677T3 (de)
ES (2) ES2956022T3 (de)
FI (1) FI3527677T3 (de)
FR (1) FR2960556B3 (de)
HU (2) HUE062854T2 (de)
MX (1) MX341738B (de)
PL (2) PL3527677T3 (de)
PT (2) PT3527677T (de)
RU (1) RU2533573C2 (de)
SI (2) SI2576849T1 (de)
TR (1) TR201910939T4 (de)
UA (1) UA107705C2 (de)
WO (1) WO2011151532A1 (de)
ZA (1) ZA201209055B (de)

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DK2576849T3 (da) 2019-07-29
US20130186521A1 (en) 2013-07-25
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PT2576849T (pt) 2019-07-30
KR20160145203A (ko) 2016-12-19
PL2576849T3 (pl) 2019-11-29
EP3527677A1 (de) 2019-08-21
FR2960556B3 (fr) 2012-05-11
AU2011260159B2 (en) 2014-05-29
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UA107705C2 (en) 2015-02-10
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