NO20080938L - Ledningsror av somlose stalror og fremgangsmate for fremstilling derav - Google Patents
Ledningsror av somlose stalror og fremgangsmate for fremstilling deravInfo
- 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
Links
Classifications
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- 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.
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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JP3491148B2 (ja) | 2000-02-02 | 2004-01-26 | Jfeスチール株式会社 | ラインパイプ用高強度高靱性継目無鋼管 |
JP4016786B2 (ja) * | 2002-10-01 | 2007-12-05 | 住友金属工業株式会社 | 継目無鋼管およびその製造方法 |
JP2004176172A (ja) * | 2002-10-01 | 2004-06-24 | Sumitomo Metal Ind Ltd | 耐水素誘起割れ性に優れた高強度継目無鋼管およびその製造方法 |
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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