EP1218559B1 - Utilisation d'un alliage d'acier pour produire des tubes d'acier sans joint a resistance elevee - Google Patents

Utilisation d'un alliage d'acier pour produire des tubes d'acier sans joint a resistance elevee Download PDF

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Publication number
EP1218559B1
EP1218559B1 EP00965759A EP00965759A EP1218559B1 EP 1218559 B1 EP1218559 B1 EP 1218559B1 EP 00965759 A EP00965759 A EP 00965759A EP 00965759 A EP00965759 A EP 00965759A EP 1218559 B1 EP1218559 B1 EP 1218559B1
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EP
European Patent Office
Prior art keywords
steel alloy
steel
tubes
strength
construction
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.)
Expired - Lifetime
Application number
EP00965759A
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German (de)
English (en)
Other versions
EP1218559A2 (fr
Inventor
Ingo Von Hagen
Kurt Niederhoff
Bernhard Koschlig
Markus Pardun
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.)
Vallourec Deutschland GmbH
Original Assignee
V&M Deutschland GmbH
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Publication date
Application filed by V&M Deutschland GmbH filed Critical V&M Deutschland GmbH
Publication of EP1218559A2 publication Critical patent/EP1218559A2/fr
Application granted granted Critical
Publication of EP1218559B1 publication Critical patent/EP1218559B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/12—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
    • C22C38/18—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
    • 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

Definitions

  • the invention relates to the use of a steel alloy for producing high-strength, Weldable seamless steel tubes that are used as construction tubes should.
  • This steel is used for the production of pipes, in particular of profiled pipes (ie pipes with a cross-section other than circular), and of pipe products, which products undergo a final tempering treatment.
  • the products are particularly suitable for highly stressed welded components such as structures of steel construction (eg in bridge, ship, hoist and truck construction).
  • a high-strength, weldable seamless steel pipe is to be understood here as meaning a construction pipe whose tensile strength R m and its yield strength R p0.2 reach at least the values given in Table 1, depending on the wall thickness.
  • Construction tubes have an elongation at break A, which is at least 16% for longitudinal samples and at least 14% for transverse samples. Furthermore, such high-strength steel pipes must also have a toughness which corresponds at least to the values for the notched impact work specified in Table 2.
  • Wall thickness (mm) Impact energy A v (J) at - 40 ° C average along crosswise ⁇ 20 40 27 > 20 - 50 30 25 > 50 27 ---
  • Object of the present invention is useful as a construction tubes
  • the investigations carried out in the course of the present invention led to the surprising result that waiving the steel according to Material sheet 290 R to achieve its strength and Toughness properties essential nickel important a suitable steel alloy can be found, which is characterized by a deliberate modification of the WO98 / 31843 known alloy for seamless pipes results.
  • the Steel alloy to be used according to the invention differs from the latter in particular by the mandatory addition of 0.2% - 0.5% Cr.
  • the predetermined ranges for the contents of C and Mn are higher Values and there is definitely a minimum vanadium content of 0.03% required.
  • weldable seamless steel pipes proposed a steel alloy, which is a for this use unusual addition of tungsten in the range of 0.3% - 1.0%.
  • the W content is at least 0.5%. So far Ni at all is contained as an impurity in the steel, for example, if this Scrap produced in the electric furnace, its content may not exceed 0.20% be.
  • the Ni content to a maximum of 0.15%, in particular limited to 0.10%.
  • the content becomes C is preferably limited to 0.14% - 0.20%.
  • a high-strength, weldable seamless construction tube is provided in the sense of the values described at the outset, which is designed in particular as a profile tube and is produced by hot rolling and subsequent tempering. It consists of a steel alloy with the following composition: C 0.12 - 0.25% Si ⁇ 0.40% Mn 1.20 - 1.80% P ⁇ 0.025% S ⁇ 0.010% al 0.01 - 0.06% Cr 0.20 - 0.50% Not a word 0.20 - 0.50% V 0.03 - 0.10% W 0.30 - 1.00% Ni 0,00 - 0,20% N ⁇ 0.02% Cu ⁇ 0.20% Remaining iron and usual impurities
  • the contents of C, W and Ni can be advantageously modified as this already for the alloy to be used according to the invention already has been described.
  • the steel tubes according to the invention have excellent values in terms of their strength and toughness properties, as is apparent from the the following embodiments in detail.
  • a steel alloy with the following composition was melted and cast into tubular extruded material with a round cross-section: C 0.17% Si 0.32% Mn 1.50% P 0.01% S 0.001% al 0.031% Cr 0.32% Not a word 0.27% Cu 0.16% Ni 0.12% V 0.07% W 0.56% N 0.006% Cu 0.02% Remaining iron and usual impurities
  • This tube pre-material was then in a conventional manner on a Pilger No. rolled into tubes of different dimensions. After cooling at room temperature, the tubes thus produced were also known per se Subjected to a tempering treatment. Compared to corresponding Steel pipes made of the well-known steel FGS 70 V had those of the invention used construction tubes made a smooth surface without the otherwise pronounced bowls, so that these tubes already without a additional post-processing were used as construction tubes.
  • the technological properties of the pipes were determined by testing transverse samples taken from the pipes produced. Samples were taken from tubes of 457 mm diameter at 20 mm wall thickness or 404 mm diameter at 41 mm wall thickness or 410 mm diameter at 60 mm wall thickness.
  • the measured values for the proof stress R p0.2 have been illustrated graphically as a function of the wall thickness in FIG. 1
  • the emergencydehnego for the known example mentioned material FGS 70 V has been entered in the form of a stair line. It can be seen that even the lowest measured values are still far above the required minimum values.
  • the result of the determination of the tensile strength R m was plotted in Figure 2, again with the minimum values for the material FGS were plotted as a step line 70 volts.
  • FIG. 3 shows the result of the measurement of the elongation at break A 5 on transverse samples for different wall thicknesses. Again, the lowest values are significantly above the required minimum value of 14%.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Claims (8)

  1. Utilisation d'un alliage d'acier contenant (pourcentage pondéral) : C 0,12 - 0,25 % Si ≤ 0,40 % Mn 1,20 - 1,80 % P ≤ 0,025 % S ≤ 0,010 % Al 0,01 - 0,06 % Cr 0,20 - 0,50 % Mo 0,20 - 0,50 % V 0,03 - 0,10 % Cu ≤ 0,20 % N ≤ 0,02 %
       le restant étant du fer et des impuretés usuelles, comme matière pour fabriquer des tubes en acier sans soudure, pouvant être soudés, à haute résistance, comme tubes de construction, par laminage à chaud et trempe et revenu suivants, sous réserve que l'alliage d'acier contient, de façon supplémentaire, 0,30 - 1,00% W et une teneur existante en Ni ne vaut pas plus de 0,20%.
  2. Utilisation selon la revendication 1, caractérisée en ce que l'alliage d'acier contient au moins 0,50% W.
  3. Utilisation selon une des revendications 1 à 2, caractérisée en ce que l'alliage d'acier contient moins de 0,15%, en particulier au plus 0,10% Ni.
  4. Utilisation selon une des revendications 1 à 3, caractérisée en ce que la teneur en C se trouve dans la plage de 0,14 à 0,20%.
  5. Tube de construction sans soudure, pouvant être soudé, à haute résistance, en particulier tube profilé, fabriqué par laminage à chaud et trempe et revenu suivants, constitué d'un alliage d'acier ayant la composition suivante : C 0,12 - 0,25 % Si ≤ 0,40 % Mn 1,20 - 1,80 % P ≤ 0,025 % S ≤ 0,010 % Al 0,01 - 0,06 % Cr 0,20 - 0,50 % Mo 0,20 - 0,50 % V 0,03 - 0,10 % W 0,30 - 1,00 % Ni 0,00 - 0,20 % Cu ≤ 0,20 % N ≤ 0,02 %
       le restant étant du fer et des impuretés usuelles.
  6. Tube de construction selon la revendication 5, caractérisé en ce que l'alliage d'acier contient au moins 0,50% W.
  7. Tube de construction selon une des revendications 5 à 6, caractérisé en ce que l'alliage d'acier contient moins de 0,15%, en particulier au plus 0,10% Ni.
  8. Tube de construction selon une des revendications 5 à 7, caractérisé en ce que la teneur en C se trouve dans la plage de 0,14 à 0,20%.
EP00965759A 1999-08-30 2000-08-14 Utilisation d'un alliage d'acier pour produire des tubes d'acier sans joint a resistance elevee Expired - Lifetime EP1218559B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19942641A DE19942641A1 (de) 1999-08-30 1999-08-30 Verwendung einer Stahllegierung zur Herstellung hochfester nahtloser Stahlrohre
DE19942641 1999-08-30
PCT/DE2000/002787 WO2001016391A2 (fr) 1999-08-30 2000-08-14 Utilisation d'un alliage d'acier pour produire des tubes d'acier sans joint a resistance elevee

Publications (2)

Publication Number Publication Date
EP1218559A2 EP1218559A2 (fr) 2002-07-03
EP1218559B1 true EP1218559B1 (fr) 2003-05-21

Family

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Family Applications (1)

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EP00965759A Expired - Lifetime EP1218559B1 (fr) 1999-08-30 2000-08-14 Utilisation d'un alliage d'acier pour produire des tubes d'acier sans joint a resistance elevee

Country Status (6)

Country Link
US (1) US20020150497A1 (fr)
EP (1) EP1218559B1 (fr)
DE (2) DE19942641A1 (fr)
ES (1) ES2199865T3 (fr)
MX (1) MXPA02001916A (fr)
WO (1) WO2001016391A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105986190A (zh) * 2015-02-25 2016-10-05 鞍钢股份有限公司 一种高强高韧性起重机臂架用管及其制造方法
CN109097707A (zh) * 2018-09-07 2018-12-28 无锡华贝钢管制造有限公司 一种130ksi强度低温用臂架用无缝钢管以及制备工艺

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005046459B4 (de) * 2005-09-21 2013-11-28 MHP Mannesmann Präzisrohr GmbH Verfahren zur Herstellung von kaltgefertigten Präzisionsstahlrohren
DE102008010749A1 (de) 2008-02-20 2009-09-24 V & M Deutschland Gmbh Stahllegierung für einen niedrig legierten Stahl zur Herstellung hochfester nahtloser Stahlrohre
WO2010061882A1 (fr) 2008-11-26 2010-06-03 住友金属工業株式会社 Tube en acier sans soudure et son procédé de fabrication
FR2939449B1 (fr) * 2008-12-09 2011-03-18 Vallourec Mannesmann Oil & Gas France Acier faiblement allie a limite d'elasticite elevee et haute resistance a la fissuration sous contrainte par les sulfures.
CN105506464B (zh) * 2015-12-10 2017-12-12 北京太普国际管业有限公司 一种汽车轴用无缝钢管及制造方法
DE102016107141A1 (de) * 2016-04-18 2017-10-19 Benteler Steel/Tube Gmbh Kraftfahrzeuganhänger, Fahrwerkachse, insbesondere für einen Kraftfahrzeuganhänger und Verwendung der Fahrwerksachse und eines Werkstoffes
ES2846779T3 (es) 2016-07-13 2021-07-29 Vallourec Deutschland Gmbh Acero microaleado y método para producir dicho acero
WO2024133917A1 (fr) * 2022-12-22 2024-06-27 Tenaris Connections B.V. Composition d'acier, procédé de fabrication, article en acier et leurs utilisations

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1084231A (fr) * 1900-01-01
JPS5161473A (en) * 1974-11-27 1976-05-28 Nippon Kokan Kk Kosokukonoritsugasushiirudoaakuyosetsunyoru atsunikuteionyokochoryokukokanno seizoho
JP2669220B2 (ja) * 1991-10-04 1997-10-27 住友金属工業株式会社 耐火性に優れたボルトおよびナット用鋼
US5454883A (en) * 1993-02-02 1995-10-03 Nippon Steel Corporation High toughness low yield ratio, high fatigue strength steel plate and process of producing same
DE4446709A1 (de) * 1994-12-15 1996-06-27 Mannesmann Ag Verwendung einer Stahllegierung für Konstruktions-Hohlprofile
FR2729974B1 (fr) * 1995-01-31 1997-02-28 Creusot Loire Acier a haute ductilite, procede de fabrication et utilisation
JPH09194998A (ja) * 1996-01-09 1997-07-29 Nkk Corp 溶接鋼管およびその製造方法
EP0954617B1 (fr) * 1997-01-15 2001-08-08 MANNESMANN Aktiengesellschaft Procede de fabrication de tuyaux de conduite sans joint, a limite d'elasticite stable a des temperatures d'utilisation elevees

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105986190A (zh) * 2015-02-25 2016-10-05 鞍钢股份有限公司 一种高强高韧性起重机臂架用管及其制造方法
CN109097707A (zh) * 2018-09-07 2018-12-28 无锡华贝钢管制造有限公司 一种130ksi强度低温用臂架用无缝钢管以及制备工艺

Also Published As

Publication number Publication date
DE19942641A1 (de) 2001-03-22
US20020150497A1 (en) 2002-10-17
WO2001016391A3 (fr) 2001-08-30
MXPA02001916A (es) 2003-07-21
WO2001016391A2 (fr) 2001-03-08
DE50002289D1 (de) 2003-06-26
ES2199865T3 (es) 2004-03-01
EP1218559A2 (fr) 2002-07-03

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