GB1376731A - Pipe - Google Patents

Pipe

Info

Publication number
GB1376731A
GB1376731A GB837771A GB837771A GB1376731A GB 1376731 A GB1376731 A GB 1376731A GB 837771 A GB837771 A GB 837771A GB 837771 A GB837771 A GB 837771A GB 1376731 A GB1376731 A GB 1376731A
Authority
GB
United Kingdom
Prior art keywords
pipe
end portion
pipes
length
resistant
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
GB837771A
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.)
British Gas Corp
BP PLC
Original Assignee
British Gas Corp
BP PLC
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 British Gas Corp, BP PLC filed Critical British Gas Corp
Priority to GB837771A priority Critical patent/GB1376731A/en
Publication of GB1376731A publication Critical patent/GB1376731A/en
Expired 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

1376731 Metal pipes BRITISH PETROLEUM CO Ltd and BRITISH GAS CORP 3 March 1972 [1 April 1971] 8377/71 Heading F2P A pipe length suitable for constructing pipelines has an end portion which is more resistant to fracture propagation along the pipe than the remaining pipe portions. The end portion preferably does not exceed one third the length of the pipe. In one embodiment, a steel pipe for constructing pipe-lines to carry liquid and gaseous petroleum products is heat-treated over the end portion and cooled to re-orientate the crystal structure of the iron. Alternatively, a length of pipe which is more resistant to fracture propagation may be welded to the pipe end. The additional pipe section may also be of steel but with a crystal orientation, at an angle of 70 to 90 degrees to the pipe axis, or it may comprise a different metal, e.g. a tougher alloy. The pipeline may include such pipes interposed between sections of other pipes.
GB837771A 1972-03-03 1972-03-03 Pipe Expired GB1376731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB837771A GB1376731A (en) 1972-03-03 1972-03-03 Pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB837771A GB1376731A (en) 1972-03-03 1972-03-03 Pipe

Publications (1)

Publication Number Publication Date
GB1376731A true GB1376731A (en) 1974-12-11

Family

ID=9851371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB837771A Expired GB1376731A (en) 1972-03-03 1972-03-03 Pipe

Country Status (1)

Country Link
GB (1) GB1376731A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2446708A1 (en) * 1979-01-22 1980-08-14 Solvay PROCESS FOR THE PRODUCTION OF PIPES IN THERMOPLASTIC MATERIAL
FR2568349A1 (en) * 1984-07-24 1986-01-31 Centro Speriment Metallurg SHEET FOR PRESSURE GAS TRANSPORT LINE
EP0178248A2 (en) * 1984-10-10 1986-04-16 MANNESMANN Aktiengesellschaft Steel pipe as a crack stopper for gas main
EP0924023A1 (en) * 1997-12-22 1999-06-23 Asea Brown Boveri AG Method of setting a recess termination in an article

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2446708A1 (en) * 1979-01-22 1980-08-14 Solvay PROCESS FOR THE PRODUCTION OF PIPES IN THERMOPLASTIC MATERIAL
EP0014489A1 (en) * 1979-01-22 1980-08-20 SOLVAY & Cie (Société Anonyme) Method for the manufacture of thermoplastic pipelines
FR2568349A1 (en) * 1984-07-24 1986-01-31 Centro Speriment Metallurg SHEET FOR PRESSURE GAS TRANSPORT LINE
EP0178248A2 (en) * 1984-10-10 1986-04-16 MANNESMANN Aktiengesellschaft Steel pipe as a crack stopper for gas main
EP0178248A3 (en) * 1984-10-10 1987-09-16 MANNESMANN Aktiengesellschaft Steel pipe as a crack stopper for gas main
EP0924023A1 (en) * 1997-12-22 1999-06-23 Asea Brown Boveri AG Method of setting a recess termination in an article
US6093902A (en) * 1997-12-22 2000-07-25 Abb Alstom Power (Switzerland) Ltd Method of making a recess termination in a component
CN1101294C (en) * 1997-12-22 2003-02-12 阿尔斯通公司 Method for guiding inner slot end into component

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee