EP0160616B1 - Verwendung eines Stahls in schwefelwasserstoffhaltiger Atmosphäre - Google Patents

Verwendung eines Stahls in schwefelwasserstoffhaltiger Atmosphäre Download PDF

Info

Publication number
EP0160616B1
EP0160616B1 EP85730016A EP85730016A EP0160616B1 EP 0160616 B1 EP0160616 B1 EP 0160616B1 EP 85730016 A EP85730016 A EP 85730016A EP 85730016 A EP85730016 A EP 85730016A EP 0160616 B1 EP0160616 B1 EP 0160616B1
Authority
EP
European Patent Office
Prior art keywords
cooled
steel
pipes
temperature
air
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
Application number
EP85730016A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0160616A3 (en
EP0160616A2 (de
Inventor
Ingo Dr.-Ing. Von Hagen
Hans-Georg Dr.-Ing. Hillenbrand
Rolf Konrad Dr.-Ing. Pöpperling
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Priority to AT85730016T priority Critical patent/ATE38059T1/de
Publication of EP0160616A2 publication Critical patent/EP0160616A2/de
Publication of EP0160616A3 publication Critical patent/EP0160616A3/de
Application granted granted Critical
Publication of EP0160616B1 publication Critical patent/EP0160616B1/de
Expired legal-status Critical Current

Links

Images

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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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

  • a steel is known with alloy areas of the elements C, Mn, Si, Cr, V, N, of which the current one is a selection (DE-OS 31 27 373). From such steels it is known that the finished product has a yield strength between 480 and 650 N / mm2 with a special deformation and temperature control.
  • the special feature is that during tube production the hollow body is cooled to a temperature between Ac1 and plus 500 ° C before the final longitudinal rolling and then heated to a temperature above Ar3 as the last rolling section to reduce the stretch.
  • quality level N 80 is neither required nor guaranteed that the product, when used in media containing hydrogen sulfide, generally has sufficiently reliable resistance to stress corrosion cracking.
  • quality level L 80 is prescribed for use under sour gas conditions according to API, which has limited technological properties compared to quality level N 80 and a limitation of hardness to a maximum of HRC 22 and a remuneration structure.
  • the tempering consists of quench hardening and subsequent tempering. The high expenditure of energy and time for the treatment and reworking of the product is perceived as a disadvantage.
  • the invention is based on the above steel alloy and the production of pipes therefrom. It has set itself the task of selecting alloy ranges and of carrying out the heat treatment in such a way that a fine-grained ferritic pearlitic structure is produced which has comparable stress corrosion cracking resistance as a tempered structure with comparable yield strengths.
  • ferritic-pearlitic steels Due to a higher ratio of yield strength to tensile strength of tempered compared to ferritic-pearlitic steels, ferritic-pearlitic steels have a higher tensile strength and thus hardness with the same yield strength.
  • the structures of the steels mentioned in claim 1 have a maximum hardness of HRC 26. At the same time, these steels have comparable resistance to stress corrosion cracking to tempered steels with HRC 22. However, this condition has not been practiced with the previously usual materials, which also achieve the required mechanical strength, and has also not become known in the literature.
  • the current proposal avoids the subsequent tempering and specifies an alloy selection for a steel that cools in air from the hot forming heat and, if necessary, undergoes normalization treatment during the hot rolling process and fulfills requirements for a narrow yield strength range as well as for high resistance to hydrogen-induced stress corrosion cracking. This results in a simplified production of a product for use in an atmosphere containing hydrogen sulfide.
  • the hardness was HRC 23 and the average grain size was ASTM 10.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
EP85730016A 1984-04-24 1985-02-01 Verwendung eines Stahls in schwefelwasserstoffhaltiger Atmosphäre Expired EP0160616B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85730016T ATE38059T1 (de) 1984-04-24 1985-02-01 Verwendung eines stahls in schwefelwasserstoffhaltiger atmosphaere.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3415590 1984-04-24
DE19843415590 DE3415590A1 (de) 1984-04-24 1984-04-24 Verwendung eines stahls in schwefelwasserstoffhaltigen medien

Publications (3)

Publication Number Publication Date
EP0160616A2 EP0160616A2 (de) 1985-11-06
EP0160616A3 EP0160616A3 (en) 1986-12-30
EP0160616B1 true EP0160616B1 (de) 1988-10-19

Family

ID=6234444

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85730016A Expired EP0160616B1 (de) 1984-04-24 1985-02-01 Verwendung eines Stahls in schwefelwasserstoffhaltiger Atmosphäre

Country Status (7)

Country Link
US (1) US4631095A (enrdf_load_stackoverflow)
EP (1) EP0160616B1 (enrdf_load_stackoverflow)
JP (1) JPS60234952A (enrdf_load_stackoverflow)
AT (1) ATE38059T1 (enrdf_load_stackoverflow)
BR (1) BR8501925A (enrdf_load_stackoverflow)
CA (1) CA1239332A (enrdf_load_stackoverflow)
DE (1) DE3415590A1 (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909675A1 (de) * 1989-03-23 1990-09-27 Siemens Ag Sperren von mfv-teilnehmernummern
DE4019118C1 (enrdf_load_stackoverflow) * 1990-06-12 1991-04-18 Mannesmann Ag, 4000 Duesseldorf, De
DE4439059A1 (de) * 1994-11-02 1996-05-09 Teves Gmbh Alfred Verschlußvorrichtung zum Verschließen von Druckmittel führenden Kanälen in einem Gehäuse
EP0940476B1 (en) * 1997-04-30 2005-06-29 JFE Steel Corporation Process for producing steel pipe having high ductility and strength
US5993570A (en) * 1997-06-20 1999-11-30 American Cast Iron Pipe Company Linepipe and structural steel produced by high speed continuous casting
WO1999000525A1 (fr) * 1997-06-26 1999-01-07 Kawasaki Steel Corporation Tuyau en acier a grains ultrafins et procede de fabrication dudit tuyau
ATE312208T1 (de) * 1997-06-26 2005-12-15 Jfe Steel Corp Verfahren zur herstellung von stahlrohr mit ultrafeinem gefüge
US6149862A (en) * 1999-05-18 2000-11-21 The Atri Group Ltd. Iron-silicon alloy and alloy product, exhibiting improved resistance to hydrogen embrittlement and method of making the same
RU2153011C1 (ru) * 1999-10-18 2000-07-20 Открытое акционерное общество "Синарский трубный завод" Способ изготовления труб из углеродистых и низколегированных сталей
JP2006083963A (ja) * 2004-09-16 2006-03-30 Ntn Corp 中空状動力伝達シャフト
CN102400057B (zh) * 2011-11-28 2014-12-03 宝山钢铁股份有限公司 抗二氧化碳腐蚀油井管用低合金钢及其制造方法
DE102015217399A1 (de) * 2015-09-11 2017-03-16 Thyssenkrupp Ag Rohrfeder für Kraftfahrzeuge und ein Verfahren zum Herstellen einer Rohrfeder

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB839063A (en) * 1957-02-11 1960-06-29 Fagersta Bruks Ab Improvements relating to steel for welding or cold working
US3741822A (en) * 1971-07-14 1973-06-26 North Star Steel Co High strength steel
US4256517A (en) * 1978-01-09 1981-03-17 Republic Steel Corporation Welded alloy casing
DE2900022C3 (de) * 1979-01-02 1981-12-03 Estel Hoesch Werke Ag, 4600 Dortmund Verfahren zum Herstellen von Profilen
US4282047A (en) * 1979-08-29 1981-08-04 Kawasaki Steel Corporation Method of producing steel pipe material for oil well
JPS5937328B2 (ja) * 1980-09-05 1984-09-08 新日本製鐵株式会社 耐サワ−特性のすぐれた鋼管用熱延鋼材の製造方法
US4354882A (en) * 1981-05-08 1982-10-19 Lone Star Steel Company High performance tubulars for critical oil country applications and process for their preparation
US4394189A (en) * 1981-05-08 1983-07-19 Lone Star Steel Company High performance tubulars for critical oil country applications and improved process for their preparation
US4370178A (en) * 1981-06-30 1983-01-25 Republic Steel Corporation Method of making as-pierced tubular products
DE3127373C2 (de) * 1981-07-09 1985-08-29 Mannesmann AG, 4000 Düsseldorf Verfahren zum Herstellen von nahtlosen Stahlrohren für die Erdölindustrie
CS330783A2 (en) * 1982-07-09 1984-06-18 Mannesmann Ag Zpusob vyroby plechu s jemnozrnnou strukturou z nizce legovane oceli pro vyrobu trub velkeho prumeru

Also Published As

Publication number Publication date
ATE38059T1 (de) 1988-11-15
CA1239332A (en) 1988-07-19
DE3415590C2 (enrdf_load_stackoverflow) 1987-11-12
US4631095A (en) 1986-12-23
EP0160616A3 (en) 1986-12-30
JPS60234952A (ja) 1985-11-21
BR8501925A (pt) 1985-12-24
DE3415590A1 (de) 1985-10-31
EP0160616A2 (de) 1985-11-06

Similar Documents

Publication Publication Date Title
DE3541620C2 (enrdf_load_stackoverflow)
DE69703149T2 (de) Gebrauchtsfertiges metalldraht und verfahren zu dessen herstellung
DE69420473T2 (de) Hochzäher und hochfester, nicht angelassener Stahl und Herstellungsverfahren dazu
DE69730739T2 (de) Stahl für Rohrleitungen mit ausgezeichneter Beständigkeit gegen Spannungsrißkorrosion auf der Außenfläche
EP0160616B1 (de) Verwendung eines Stahls in schwefelwasserstoffhaltiger Atmosphäre
DE19610675C1 (de) Mehrphasenstahl und Verfahren zu seiner Herstellung
DE60129463T2 (de) Walzdraht für hartgezogene feder, gezogener draht für hartgezogene feder und hartgezogene feder und verfahren zur herstellung von hartgezogenen federn
DE69708832T2 (de) Kaltgewalztes Stahlblech und sein Herstellungsverfahren
DE3041565C2 (enrdf_load_stackoverflow)
DE1483218C3 (de) Verfahren zum Herstellen eines warmfesten, ferritischen Cr-Mo-V-Stahles mit hoher Zeitstandfestigkeit und verbesserter Zeitbruchdehnung
DE3124977A1 (de) "federstahl fuer fahrzeuge"
DE69203228T2 (de) Metalldraht aus einem stahlsubstrat mit kaltgehärteter geglühter martensitischer struktur und beschichtung.
DE2459654B2 (de) Herstellung eines Stahldrahtes mit guter Ziehfähigkeit und einer Zugfestigkeit von über 115kp/mm2
DE3616518C2 (enrdf_load_stackoverflow)
DE2356791A1 (de) Verfahren zum herstellen von draht aus niedriglegiertem stahl
DE19920324B4 (de) Verwendung eines Stahls mit ausgezeichneter Bruchspaltbarkeit und Dauerfestigkeit in Pleuelstangen
DE2259420C3 (de) Verwendung eines hochkohlenstoffhaltigen Stahls als Werkstoff für Draht
DE69107439T2 (de) Hochfester rostfreier Stahl mit guten Zähigkeitseigenschaften, und Verfahren zu seiner Herstellung.
DE19839383C2 (de) Verfahren zur thermomechanischen Behandlung von Stahl für torsionsbeanspruchte Federelemente
DE69123134T2 (de) Verfahren zum Herstellen eines hochfesten, elektrowiderstands- geschweissten Stahlrohres
EP0035681B1 (de) Verwendung eines Stahls hoher Festigkeit und Zähigkeit
DE2324750A1 (de) Herstellung von gehaertetem stahl
DE69214421T2 (de) Rohfabrikate grosser Länge für Herstellungsverfahren durch Kaltumformen, insbesondere für Kaltstauchen von formgebend bearbeitete Erzeugnisse wie Bolzen, und Verfahren zur Herstellung dieser kaltgeformten Gegenstände
DE2709263A1 (de) Hochfester stahl fuer das aufchromen durch diffusion
DE2935690C2 (de) Verfahren zum Herstellen von Röhrenstahl

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE FR GB IT

17P Request for examination filed

Effective date: 19860503

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE FR GB IT

17Q First examination report despatched

Effective date: 19880224

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE FR GB IT

REF Corresponds to:

Ref document number: 38059

Country of ref document: AT

Date of ref document: 19881115

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19890201

Ref country code: AT

Effective date: 19890201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19890228

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

BERE Be: lapsed

Owner name: MANNESMANN A.G.

Effective date: 19890228

GBPC Gb: european patent ceased through non-payment of renewal fee
26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19891027

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST