EP0367360A3 - Process for manufacturing seamless pressure vessels - Google Patents

Process for manufacturing seamless pressure vessels Download PDF

Info

Publication number
EP0367360A3
EP0367360A3 EP19890250061 EP89250061A EP0367360A3 EP 0367360 A3 EP0367360 A3 EP 0367360A3 EP 19890250061 EP19890250061 EP 19890250061 EP 89250061 A EP89250061 A EP 89250061A EP 0367360 A3 EP0367360 A3 EP 0367360A3
Authority
EP
European Patent Office
Prior art keywords
pressure vessels
manufacturing seamless
seamless pressure
cooling
steel
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
EP19890250061
Other languages
German (de)
French (fr)
Other versions
EP0367360A2 (en
EP0367360B1 (en
Inventor
Dieter Dr.-Ing. Vespermann
Heinz Müller
Bernhard Dipl.-Ing. Hoffmann
Ingo Dr.-Ing. Von Hagen
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
Publication of EP0367360A2 publication Critical patent/EP0367360A2/en
Publication of EP0367360A3 publication Critical patent/EP0367360A3/en
Application granted granted Critical
Publication of EP0367360B1 publication Critical patent/EP0367360B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • 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
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C21D9/14—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

The invention relates to a process for manufacturing seamless pressure vessels from an aluminium-killed CrMo steel of specific composition. After hot forming, the pressure vessels are tempered by austenitising at 830 to 880 DEG C, cooling at a rate of 5 to 15 K/s to room temperature and drawing up to 680 DEG C and cooling in air. The steel alloy is distinguished by a nitrogen content of 0.003 to 0.01% and furthermore contains 0.010 to 0.040% of titanium and 0.001 to 0.03% of boron, with a Ti/N ratio of at least 3:4.
EP89250061A 1988-11-01 1989-10-23 Process for manufacturing seamless pressure vessels Expired - Lifetime EP0367360B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3837400 1988-11-01
DE3837400A DE3837400C2 (en) 1988-11-01 1988-11-01 Process for the production of seamless pressure vessels

Publications (3)

Publication Number Publication Date
EP0367360A2 EP0367360A2 (en) 1990-05-09
EP0367360A3 true EP0367360A3 (en) 1991-09-11
EP0367360B1 EP0367360B1 (en) 1994-08-03

Family

ID=6366452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89250061A Expired - Lifetime EP0367360B1 (en) 1988-11-01 1989-10-23 Process for manufacturing seamless pressure vessels

Country Status (5)

Country Link
US (1) US5030297A (en)
EP (1) EP0367360B1 (en)
AT (1) ATE109515T1 (en)
DE (2) DE3837400C2 (en)
ES (1) ES2057097T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5334841A (en) * 1993-01-22 1994-08-02 Minnesota Mining And Manufacturing Company Method and apparatus for detecting fluorescence
US5387392A (en) * 1993-08-25 1995-02-07 Bethlehem Steel Corporation High strength, high toughness steel grade and gas cylinder thereof
US6488790B1 (en) 2001-01-22 2002-12-03 International Steel Group Inc. Method of making a high-strength low-alloy hot rolled steel
CN104498830B (en) * 2014-12-30 2017-06-23 南阳汉冶特钢有限公司 A kind of structural alloy steel and its production method
WO2020250009A1 (en) * 2019-06-12 2020-12-17 Arcelormittal A cold rolled martensitic steel and a method of martensitic steel thereof
CN113862556B (en) * 2021-08-05 2022-08-05 邯郸新兴特种管材有限公司 4140 medium-thick-wall seamless steel pipe and production method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2703149B2 (en) * 1976-01-28 1978-07-13 Ugine Aciers, S.A., Paris Process for the production of steels containing boron
DE2649019B2 (en) * 1976-06-14 1979-10-25 Nippon Steel Corp., Tokio Method of making seamless tubes
US4740255A (en) * 1986-03-17 1988-04-26 Manton Robert B High strength weldable seamless tube of low alloy steel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6035981B2 (en) * 1981-06-25 1985-08-17 住友金属工業株式会社 High-strength, high-toughness rolled steel for pressure vessels
JPS6067624A (en) * 1983-09-22 1985-04-18 Kawasaki Steel Corp Preparation of high strength and high toughness steel pipe
JPS6187818A (en) * 1984-10-03 1986-05-06 Nippon Steel Corp Manufacture of ultrathick steel material of high strength low alloy steel
JPS62196326A (en) * 1986-02-24 1987-08-29 Sumitomo Metal Ind Ltd Manufacture of high-strength steel excellent in surface toughness

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2703149B2 (en) * 1976-01-28 1978-07-13 Ugine Aciers, S.A., Paris Process for the production of steels containing boron
DE2649019B2 (en) * 1976-06-14 1979-10-25 Nippon Steel Corp., Tokio Method of making seamless tubes
US4740255A (en) * 1986-03-17 1988-04-26 Manton Robert B High strength weldable seamless tube of low alloy steel

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 12, No. 50 (C-476), 16. Februar 1988; & JP-A-62 196 326 (SUMITOMO METAL IND.) (29-08-1987) *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 200 (C-298)[1923], 16. August 1985; & JP -A-60 067 624 (KAWASAKI SEITETSU) (18-04-1985) *
VdTüV-WERKSTOFFBLATT, Nr. 431, März 1988, Seiten 1-8, Essen, DE; "Vergüteter, Cr-Mo-legierter Walz- und Schmiedestahl 34 CrMo 4 und 34 CrMo 4/A Werkstoff-Nr. 1.7220 *

Also Published As

Publication number Publication date
EP0367360A2 (en) 1990-05-09
US5030297A (en) 1991-07-09
DE3837400A1 (en) 1990-05-03
ATE109515T1 (en) 1994-08-15
EP0367360B1 (en) 1994-08-03
DE58908140D1 (en) 1994-09-08
DE3837400C2 (en) 1995-02-23
ES2057097T3 (en) 1994-10-16

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