NO20072779L - Stallegering og framgangsmate for tilvirkning av denne - Google Patents

Stallegering og framgangsmate for tilvirkning av denne

Info

Publication number
NO20072779L
NO20072779L NO20072779A NO20072779A NO20072779L NO 20072779 L NO20072779 L NO 20072779L NO 20072779 A NO20072779 A NO 20072779A NO 20072779 A NO20072779 A NO 20072779A NO 20072779 L NO20072779 L NO 20072779L
Authority
NO
Norway
Prior art keywords
weight
steel
manufacture
temperatures
stable alloy
Prior art date
Application number
NO20072779A
Other languages
English (en)
Inventor
Shuji Hashizume
Yusuke Minami
Tatsuo Ono
Original Assignee
Nkktubes
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 Nkktubes filed Critical Nkktubes
Publication of NO20072779L publication Critical patent/NO20072779L/no

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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties of ferrous metals or ferrous alloys 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

Landscapes

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

Abstract

Martensittisk rustfritt stål for rimelige sømløse rør med flytegrense på 655 MPa, høy seighet og god korrosjonsmotstand i omgivelser med høye nivå av CO2, og en framgangsmåte for framstilling av samme. Stålet omfatter C: 0,005 - 0,05 vekt %, Si: 0,1 - 0,5 vekt %, Mn: 0,2 - 2,0 vekt %, P: inntil 0,05 vekt %, S: inntil 0,005 vekt %, Cr: 10,0 - 12,5 vekt %, Mo: 0,1 - 0,5 vekt %, Ni: 1,5 - 3,0 vekt %, N: inntil 0,02 vekt %, Al: 0,01 - 0,1 vekt %, hvorved FI-verdien definert ved formelen [FI = Cr + Mo - Ni - 30(C + N)] ligger i området 5,00 til 8,49, og resten er hovedsakelig Fe. Framgangsmåten omfatter trinnene med å varme det avkjølte stålet på nytt ved temperaturer fra 780 ºC til 960 ºC, bråkjøle det oppvarmete stålet, og deretter temperere det bråkjølte stålet ved temperaturer i området fra 550 ºC til 650 ºC.
NO20072779A 2004-12-15 2007-05-31 Stallegering og framgangsmate for tilvirkning av denne NO20072779L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/018710 WO2006064553A1 (ja) 2004-12-15 2004-12-15 靭性に優れた６５５ＭＰａ級マルテンサイト系ステンレス鋼及びその製造方法

Publications (1)

Publication Number Publication Date
NO20072779L true NO20072779L (no) 2007-07-06

Family

ID=36587618

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20072779A NO20072779L (no) 2004-12-15 2007-05-31 Stallegering og framgangsmate for tilvirkning av denne

Country Status (4)

Country Link
US (2) US20080112839A1 (no)
JP (1) JP4975448B2 (no)
NO (1) NO20072779L (no)
WO (1) WO2006064553A1 (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102839331B (zh) * 2011-06-24 2014-10-01 宝山钢铁股份有限公司 一种高韧性耐腐蚀钢及其制造方法
CN107552567A (zh) * 2017-09-08 2018-01-09 苏州钢特威钢管有限公司 1Cr17铁素体不锈钢管的制备方法
CN114836689B (zh) * 2022-04-25 2023-04-07 宁国东方碾磨材料股份有限公司 一种高铬耐磨钢球及其制备方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000024783A (ja) * 1998-07-13 2000-01-25 Nippon Steel Corp 長尺耐食鋼管および製造法
MY120831A (en) * 1998-12-08 2005-11-30 Sumitomo Metal Ind Martensitic stainless steel products.
JP2000328202A (ja) * 1999-05-19 2000-11-28 Sumitomo Metal Ind Ltd 成形性と耐食性ならびに靭性に優れた低炭素マルテンサイト系ステンレス鋼板とその製造方法および溶接鋼管
JP3890821B2 (ja) * 1999-08-24 2007-03-07 住友金属工業株式会社 耐応力腐食割れ性に優れた高強度高靱性ステンレス鋼
JP3503560B2 (ja) * 2000-02-14 2004-03-08 住友金属工業株式会社 耐食性に優れた低降伏比マルテンサイト系ステンレス鋼およびその製造方法
JP3666388B2 (ja) * 2000-12-19 2005-06-29 住友金属工業株式会社 マルテンサイト系ステンレス継目無鋼管
JP3642030B2 (ja) * 2001-02-09 2005-04-27 住友金属工業株式会社 高強度マルテンサイト系ステンレス鋼およびその製造方法
JP3812360B2 (ja) * 2001-04-09 2006-08-23 住友金属工業株式会社 強度安定性に優れたマルテンサイト系ステンレス鋼
JP3938738B2 (ja) * 2002-09-27 2007-06-27 エヌケーケーシームレス鋼管株式会社 高靱性を有する高クロム鋼及びその製造方法

Also Published As

Publication number Publication date
US20080112839A1 (en) 2008-05-15
US20100096048A1 (en) 2010-04-22
WO2006064553A1 (ja) 2006-06-22
US8747575B2 (en) 2014-06-10
JPWO2006064553A1 (ja) 2008-06-12
JP4975448B2 (ja) 2012-07-11

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