JPS55104425A - Steel pipe of surerior sour gas resistance - Google Patents

Steel pipe of surerior sour gas resistance

Info

Publication number
JPS55104425A
JPS55104425A JP1221779A JP1221779A JPS55104425A JP S55104425 A JPS55104425 A JP S55104425A JP 1221779 A JP1221779 A JP 1221779A JP 1221779 A JP1221779 A JP 1221779A JP S55104425 A JPS55104425 A JP S55104425A
Authority
JP
Japan
Prior art keywords
sour gas
working layer
resistance
outside surfaces
gas resistance
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.)
Pending
Application number
JP1221779A
Other languages
Japanese (ja)
Inventor
Makoto Sato
Makio Iino
Nobuji Nomura
Hiroshi Takezawa
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP1221779A priority Critical patent/JPS55104425A/en
Publication of JPS55104425A publication Critical patent/JPS55104425A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F16L9/00—Rigid pipes
    • F16L9/02—Rigid pipes of metal
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like

Landscapes

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

Abstract

PURPOSE:To improve sour gas resistance by forming the working layer of the specific thickness on the inside surface or inside and outside surfaces of oil well pipes and line pipes by shot peening or other methods. CONSTITUTION:A working layer is provided on the inside surface or inside and outside surfaces of the oil well pipes equivalent to 5A, 5AX, 5AC in API standard and the line pipes equivalent to 5L, 5LX, 5LS, 5LU by shot peening, embossing, grinding or the like. This working layer is formed to a thickness or 0.5mu or more per surface of the both inside and outside surfaces of the pipe, more than 1/2 the plate thickness in total. This working layer forms a dense and stable anti-corrosion film under sour gas environment, thereby considerably improving sour gas resistance charactertistics such as hydrogen blister resistance, corrosion to hydrogen sulfide or sulfide corrosion cracking resistance.
JP1221779A 1979-02-07 1979-02-07 Steel pipe of surerior sour gas resistance Pending JPS55104425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1221779A JPS55104425A (en) 1979-02-07 1979-02-07 Steel pipe of surerior sour gas resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1221779A JPS55104425A (en) 1979-02-07 1979-02-07 Steel pipe of surerior sour gas resistance

Publications (1)

Publication Number Publication Date
JPS55104425A true JPS55104425A (en) 1980-08-09

Family

ID=11799206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1221779A Pending JPS55104425A (en) 1979-02-07 1979-02-07 Steel pipe of surerior sour gas resistance

Country Status (1)

Country Link
JP (1) JPS55104425A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998000569A1 (en) * 1996-06-28 1998-01-08 Nippon Steel Corporation Steel having excellent outer surface scc resistance for pipeline

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998000569A1 (en) * 1996-06-28 1998-01-08 Nippon Steel Corporation Steel having excellent outer surface scc resistance for pipeline
US6517643B1 (en) 1996-06-28 2003-02-11 Nippon Steel Corporation Steel having excellent outer surface SCC resistance for pipeline

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