NO20080938L - Ledningsror av somlose stalror og fremgangsmate for fremstilling derav - Google Patents

Ledningsror av somlose stalror og fremgangsmate for fremstilling derav

Info

Publication number
NO20080938L
NO20080938L NO20080938A NO20080938A NO20080938L NO 20080938 L NO20080938 L NO 20080938L NO 20080938 A NO20080938 A NO 20080938A NO 20080938 A NO20080938 A NO 20080938A NO 20080938 L NO20080938 L NO 20080938L
Authority
NO
Norway
Prior art keywords
someless
stalks
making
methods
wire rods
Prior art date
Application number
NO20080938A
Other languages
English (en)
Other versions
NO341250B1 (no
Inventor
Yuji Arai
Kunio Kondo
Nobuyuki Hisamune
Original Assignee
Sumitomo Metal Ind
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 Sumitomo Metal Ind filed Critical Sumitomo Metal Ind
Publication of NO20080938L publication Critical patent/NO20080938L/no
Publication of NO341250B1 publication Critical patent/NO341250B1/no

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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
    • 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
    • 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
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S148/00—Metal treatment
    • Y10S148/902—Metal treatment having portions of differing metallurgical properties or characteristics
    • Y10S148/909—Tube

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Conductive Materials (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

Et sømløst stålrør for ledningsrør med en høy styrke og god seighet og korrosjonsmotstand endog selv om det har en tykk vegg, har en kjemisk sammensetning som i masseprosent omfatter C: 0,02-0,08 %, Si: høyst 0,5 %, Mn: 1,5-3,0 %, Al: 0,001-0,10 %, Mo: mer enn 0,4 % til 1,2 %, N: 0,002-0,015%, Ca: 0,0002-0,007%, idet resten er Fe og forurensninger, hvori innholdet av forurensningene er høyst 0,03 % for P, høyst 0,005 % for S, høyst 0,005 % for O, og mindre enn 0,0005 % for B, og hvori verdien av Pcm beregnet ved den følgende ligning (1) er minst 0,185 og høyst 0,250. Stålrøret har en mikrostruktur som primært omfatter bainitt og som har en lengde av sementitt på høyst 20 mikrometer: Pcm = [C] + [Si]/30 + ([Mn] + [Cr] + [Cu])/20 + [Mo]/15 + [V]/10 + 5[B]... (1) hvori [C], [Si], [Mn], [Cr], [Cu], [Mo], [V] og [B] er respektive tall som angir innholdet i masseprosent av C, Si, Mn, Cr, Cu, Mo, V og B.
NO20080938A 2005-08-22 2008-02-25 Ledningsrør av sømløse stålrør og fremgangsmåte for fremstilling derav NO341250B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005240069 2005-08-22
PCT/JP2006/316399 WO2007023806A1 (ja) 2005-08-22 2006-08-22 ラインパイプ用継目無鋼管およびその製造方法

Publications (2)

Publication Number Publication Date
NO20080938L true NO20080938L (no) 2008-05-08
NO341250B1 NO341250B1 (no) 2017-09-25

Family

ID=37771549

Family Applications (3)

Application Number Title Priority Date Filing Date
NO20080939A NO338486B1 (no) 2005-08-22 2008-02-25 Ledningsrør av sømløse stålrør og fremgangsmåte for fremstilling derav.
NO20080938A NO341250B1 (no) 2005-08-22 2008-02-25 Ledningsrør av sømløse stålrør og fremgangsmåte for fremstilling derav
NO20080941A NO340253B1 (no) 2005-08-22 2008-02-25 Sømløst stålrør for ledningsrør og fremgangsmåte for fremstilling derav

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NO20080939A NO338486B1 (no) 2005-08-22 2008-02-25 Ledningsrør av sømløse stålrør og fremgangsmåte for fremstilling derav.

Family Applications After (1)

Application Number Title Priority Date Filing Date
NO20080941A NO340253B1 (no) 2005-08-22 2008-02-25 Sømløst stålrør for ledningsrør og fremgangsmåte for fremstilling derav

Country Status (10)

Country Link
US (3) US7896984B2 (no)
EP (3) EP1918398B1 (no)
JP (3) JP4502011B2 (no)
CN (3) CN101300369B (no)
AR (2) AR054935A1 (no)
AU (3) AU2006282411B2 (no)
BR (3) BRPI0615362B8 (no)
CA (3) CA2620054C (no)
NO (3) NO338486B1 (no)
WO (3) WO2007023806A1 (no)

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JP4792778B2 (ja) * 2005-03-29 2011-10-12 住友金属工業株式会社 ラインパイプ用厚肉継目無鋼管の製造方法

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EP1918398A1 (en) 2008-05-07
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