EP1218559A2 - 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

Info

Publication number
EP1218559A2
EP1218559A2 EP00965759A EP00965759A EP1218559A2 EP 1218559 A2 EP1218559 A2 EP 1218559A2 EP 00965759 A EP00965759 A EP 00965759A EP 00965759 A EP00965759 A EP 00965759A EP 1218559 A2 EP1218559 A2 EP 1218559A2
Authority
EP
European Patent Office
Prior art keywords
steel
steel alloy
tubes
construction
strength
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.)
Granted
Application number
EP00965759A
Other languages
German (de)
English (en)
Other versions
EP1218559B1 (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
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 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

Links

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 the production of high-strength, weldable seamless steel tubes, which are to be used as construction tubes.
  • Material sheet 290 R from Mannesmannröhren-Werke AG (October 1994 edition) is a weldable fine-grain structural steel e.g. known as FGS 70 V, which has the following composition (% by weight):
  • This steel is used for the production of pipes, in particular profile pipes (ie pipes with a cross-section deviating from a circular shape) and pipe products, these products being subjected to a final tempering treatment.
  • the products are particularly suitable for heavy-duty use welded components such as constructions of steel construction (e.g. in bridge, ship, hoist and truck construction)
  • a high-strength, weldable seamless steel pipe is to be understood as a construction pipe, the tensile strength R m and the yield strength R p02 depending on the wall thickness At least the values specified in table 1 are achieved
  • Construction pipes have an elongation at break A that is at least for long samples
  • From W098 / 31843 is a process for the production of seamless conduits in the range X52 -X90 by hot rolling a pipe pre-material from one
  • the object of the present invention is to propose high-strength weldable seamless steel tubes which can be used as construction tubes and which meet the minimum requirements mentioned above in terms of tensile strength, yield strength, elongation at break and notched impact strength, the production of which should be possible with as little effort as possible and lead to optically perfect tube surface areas
  • a steel tube according to the invention as a construction tube, in particular as a profile tube, has the features of independent claim 5.
  • Toughness properties of essential nickel a suitable steel alloy can be found, which results from a specific modification of the alloy known from W098 / 31843 for seamless conduits.
  • 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 W content is at least 0.5%.
  • Ni is present as an impurity in the steel, for example if it is generated from scrap in an electric furnace, its content must not exceed 0.20%
  • the Ni content is preferably limited to a maximum of 0.15%, in particular a maximum of 0 10%.
  • the content of C is preferably limited to 0 14% to 0.20%
  • a weldable seamless construction tube which is high-strength and weldable in the sense of the values described at the beginning is provided, 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
  • the contents of C, W and Ni can advantageously be modified as has already been described above for the alloy to be used according to the invention.
  • the steel tubes according to the invention have excellent values with regard to their strength and toughness properties, as can be seen in detail from the following exemplary embodiments
  • a steel alloy with the following composition was melted and cast into a tubular cross-section
  • Fig. 3 shows the elongation at break A 5 depending on the wall thickness.
  • the construction pipes made from the steel used according to the invention had a smooth surface without the usual, distinctive shells, so that these pipes could already be used as construction pipes without additional finishing.
  • the technological properties of the pipes were determined by testing cross samples taken from the pipes produced. Samples were used which were taken from pipes with a diameter of 457 mm and a wall thickness of 20 mm or 404 mm diameter and a wall thickness of 41 mm and a diameter of 410 mm and a wall thickness of 60 mm.
  • the measured values for the proof stress R p0 , 2 have been shown graphically in FIG. 1 as a function of the wall thickness.
  • R m is shown graphically, whereby the minimum values for the material FGS 70 V were drawn in as a stair line. Here, too, the lowest determined values are significantly above the required minimum values. 3 also 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 higher than the required minimum of 14%.

Landscapes

  • 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)

Abstract

L'invention concerne l'utilisation d'un alliage d'acier comme matériau servant à produire des tubes d'acier soudables, sans joint, à résistance élevée, ledit alliage contenant (en % en poids) 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 reste étant constitué de fer et d'impuretés usuelles. Ces tubes sont produits sous la forme de tubes pour la construction, par laminage à chaud, puis trempage et revenu, à condition que l'alliage d'acier contienne en outre 0,30-1,00 % W et présente une teneur approximative en Ni inférieure ou égale 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 true EP1218559A2 (fr) 2002-07-03
EP1218559B1 EP1218559B1 (fr) 2003-05-21

Family

ID=7921072

Family Applications (1)

Application Number Title Priority Date Filing Date
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)

Families Citing this family (10)

* 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
CN104694835A (zh) 2008-11-26 2015-06-10 新日铁住金株式会社 无缝钢管及其制造方法
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.
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
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
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
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
DE59704264D1 (de) * 1997-01-15 2001-09-13 Mannesmann Ag Verfahren zur herstellung nahtloser leitungsrohre mit stabiler streckgrenze bei erhöhten einsatztemperaturen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0116391A2 *

Also Published As

Publication number Publication date
ES2199865T3 (es) 2004-03-01
WO2001016391A3 (fr) 2001-08-30
US20020150497A1 (en) 2002-10-17
WO2001016391A2 (fr) 2001-03-08
MXPA02001916A (es) 2003-07-21
EP1218559B1 (fr) 2003-05-21
DE50002289D1 (de) 2003-06-26
DE19942641A1 (de) 2001-03-22

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