EP1584699A4 - Hochfester martensitischer edelstahl mit hervorragender beständigkeit gegen kohlensäurekorrosion und sulfid-spannungsrisskorrosion - Google Patents

Hochfester martensitischer edelstahl mit hervorragender beständigkeit gegen kohlensäurekorrosion und sulfid-spannungsrisskorrosion

Info

Publication number
EP1584699A4
EP1584699A4 EP03780915A EP03780915A EP1584699A4 EP 1584699 A4 EP1584699 A4 EP 1584699A4 EP 03780915 A EP03780915 A EP 03780915A EP 03780915 A EP03780915 A EP 03780915A EP 1584699 A4 EP1584699 A4 EP 1584699A4
Authority
EP
European Patent Office
Prior art keywords
carbon dioxide
stainless steel
dioxide gas
martensitic stainless
sulfide stress
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.)
Withdrawn
Application number
EP03780915A
Other languages
English (en)
French (fr)
Other versions
EP1584699A1 (de
Inventor
Hideki Takabe
Masakatsu Ueda
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
Sumitomo Metal Industries Ltd
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 Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Publication of EP1584699A1 publication Critical patent/EP1584699A1/de
Publication of EP1584699A4 publication Critical patent/EP1584699A4/de
Withdrawn legal-status Critical Current

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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • 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
    • C21D2211/004—Dispersions; Precipitations
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
EP03780915A 2002-12-20 2003-12-18 Hochfester martensitischer edelstahl mit hervorragender beständigkeit gegen kohlensäurekorrosion und sulfid-spannungsrisskorrosion Withdrawn EP1584699A4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002369595 2002-12-20
JP2002369595 2002-12-20
PCT/JP2003/016288 WO2004057050A1 (ja) 2002-12-20 2003-12-18 耐炭酸ガス腐食性および耐硫化物応力腐食割れ性に優れた高強度マルテンサイトステンレス鋼

Publications (2)

Publication Number Publication Date
EP1584699A1 EP1584699A1 (de) 2005-10-12
EP1584699A4 true EP1584699A4 (de) 2009-06-03

Family

ID=32677145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03780915A Withdrawn EP1584699A4 (de) 2002-12-20 2003-12-18 Hochfester martensitischer edelstahl mit hervorragender beständigkeit gegen kohlensäurekorrosion und sulfid-spannungsrisskorrosion

Country Status (12)

Country Link
US (1) US20050224143A1 (de)
EP (1) EP1584699A4 (de)
JP (1) JP4428237B2 (de)
CN (1) CN100368579C (de)
AR (1) AR042494A1 (de)
AU (1) AU2003289437B2 (de)
BR (1) BRPI0317550B1 (de)
CA (1) CA2509581C (de)
MX (1) MXPA05006562A (de)
NO (1) NO337858B1 (de)
RU (1) RU2307876C2 (de)
WO (1) WO2004057050A1 (de)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4337712B2 (ja) * 2004-11-19 2009-09-30 住友金属工業株式会社 マルテンサイト系ステンレス鋼
EP1876253B1 (de) * 2005-04-28 2013-04-17 JFE Steel Corporation Rohr aus nichtrostendem stahl für erdölbohrloch mit hervorragenden erweiterungseigenschaften
CN100453685C (zh) * 2006-07-11 2009-01-21 无锡西姆莱斯石油专用管制造有限公司 高Cr系不锈钢无缝油井管及其生产方法
EP2060644A4 (de) * 2006-08-22 2016-02-17 Nippon Steel & Sumitomo Metal Corp Martensitischer nichtrostender stahl
AU2007289709B2 (en) 2006-08-31 2010-09-16 Nippon Steel Corporation Martensitic stainless steel for welded structure
JP5145793B2 (ja) * 2007-06-29 2013-02-20 Ｊｆｅスチール株式会社 油井管用マルテンサイト系ステンレス継目無鋼管およびその製造方法
JP4951564B2 (ja) 2008-03-25 2012-06-13 住友化学株式会社 再生硫黄回収装置
JP4577457B2 (ja) * 2008-03-28 2010-11-10 住友金属工業株式会社 油井管に用いられるステンレス鋼
EP2322679B1 (de) * 2008-09-04 2020-02-26 JFE Steel Corporation Nahtloses rohr aus martensitischem nichtrostendem stahl für ölbohrlochrohr und herstellungsverfahren dafür
AR073884A1 (es) 2008-10-30 2010-12-09 Sumitomo Metal Ind Tubo de acero inoxidable de alta resistencia excelente en resistencia a la fisuracion bajo tension por sulfuros y a la corrosion de gas de acido carbonico en alta temperatura.
AR076669A1 (es) * 2009-05-18 2011-06-29 Sumitomo Metal Ind Acero inoxidable para pozos de petroleo, tubo de acero inoxidable para pozos de petroleo, y metodo de fabricacion de acero inoxidable para pozos de petroleo
CN102869803B (zh) * 2010-04-28 2016-04-27 新日铁住金株式会社 油井用高强度不锈钢和油井用高强度不锈钢管
IT1403689B1 (it) * 2011-02-07 2013-10-31 Dalmine Spa Tubi in acciaio ad alta resistenza con eccellente durezza a bassa temperatura e resistenza alla corrosione sotto tensioni da solfuri.
CN102534418A (zh) * 2012-02-29 2012-07-04 宝山钢铁股份有限公司 一种油套管用马氏体不锈钢及其制造方法
IN2014DN05668A (de) * 2012-03-26 2015-04-03 Nippon Steel & Sumitomo Metal Corp
CN102866172A (zh) * 2012-08-31 2013-01-09 广东电网公司电力科学研究院 一种T/P92钢Laves相含量测定方法
KR101521071B1 (ko) 2012-09-27 2015-05-15 히타치 긴조쿠 가부시키가이샤 석출 강화형 마르텐사이트강 및 그의 제조방법
BR102014005015A8 (pt) * 2014-02-28 2017-12-26 Villares Metals S/A aço inoxidável martensítico-ferrítico, produto manufaturado, processo para a produção de peças ou barras forjadas ou laminadas de aço inoxidável martensítico-ferrítico e processo para a produção de tudo sem costura de aço inoxidável martensítico-ferrítico
WO2016001703A1 (en) 2014-07-03 2016-01-07 Arcelormittal Method for manufacturing a high strength steel sheet and sheet obtained by the method
WO2016001705A1 (en) * 2014-07-03 2016-01-07 Arcelormittal Method for manufacturing a high strength steel sheet having improved formability and ductility and sheet obtained
ES2927150T3 (es) * 2015-02-20 2022-11-02 Jfe Steel Corp Tubería de acero de pared gruesa sin costura de alta resistencia y procedimiento para producir la misma
AU2017266359B2 (en) * 2016-05-20 2019-10-03 Nippon Steel Corporation Steel bar for downhole member and downhole member
CN105755393A (zh) * 2016-05-24 2016-07-13 江苏金基特钢有限公司 石油管道专用钢材及其制备方法
CN106399862B (zh) * 2016-09-28 2017-12-29 睿智钢业有限公司 一种高强防腐钢材及其制备方法和应用
JP6315159B1 (ja) * 2016-10-25 2018-04-25 Ｊｆｅスチール株式会社 油井管用マルテンサイト系ステンレス継目無鋼管およびその製造方法
MX2019011443A (es) * 2017-03-28 2019-11-01 Nippon Steel Corp Producto de acero inoxidable martensitico.
RU2650353C1 (ru) * 2017-09-18 2018-04-11 Юлия Алексеевна Щепочкина Сталь
BR112020004793A2 (pt) 2017-09-29 2020-09-24 Jfe Steel Corporation tubo sem costura de aço inoxidável martensítico para produtos tubulares para regiões petrolíferas, e método para sua fabricação
JP6540922B1 (ja) 2017-09-29 2019-07-10 Ｊｆｅスチール株式会社 油井管用マルテンサイト系ステンレス継目無鋼管およびその製造方法
JP6540920B1 (ja) 2017-09-29 2019-07-10 Ｊｆｅスチール株式会社 油井管用マルテンサイト系ステンレス継目無鋼管およびその製造方法
RU2659530C1 (ru) * 2017-11-27 2018-07-02 Юлия Алексеевна Щепочкина Сталь для изготовления ювелирных изделий
BR112020023438B1 (pt) 2018-05-25 2024-01-09 Jfe Steel Corporation Tubo de aço sem costuras de aço inoxidável martensítico para tubos de poço de petróleo e método para produção dos mesmos
EP3767000A4 (de) * 2018-05-25 2021-03-03 JFE Steel Corporation Nahtloses stahlrohr aus martensitischem edelstahl für erdölbohrrohre und verfahren zu seiner herstellung
AR116495A1 (es) 2018-09-27 2021-05-12 Nippon Steel Corp Material de acero inoxidable martensítico
WO2020095559A1 (ja) 2018-11-05 2020-05-14 Ｊｆｅスチール株式会社 油井管用マルテンサイト系ステンレス継目無鋼管およびその製造方法
CN111793773B (zh) * 2019-08-09 2021-10-12 中南大学 一种通过Laves相及μ相复合强硬化的高速钢及其制备方法
CN115698358B (zh) * 2020-04-01 2023-08-29 日本制铁株式会社 钢材

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02243740A (ja) * 1989-03-15 1990-09-27 Sumitomo Metal Ind Ltd 油井用マルテンサイト系ステンレス鋼材とその製造方法
JPH03120337A (ja) * 1989-10-03 1991-05-22 Sumitomo Metal Ind Ltd マルテンサイト系ステンレス鋼と製造方法
JPH05156409A (ja) * 1991-11-29 1993-06-22 Nippon Steel Corp 耐海水性に優れた高強度マルテンサイトステンレス鋼とその製造方法
EP0798394A1 (de) * 1996-03-27 1997-10-01 Kawasaki Steel Corporation Martensitisches Stahl für Rohre mit guter Korrosionsbeständigkeit und guter Schweissbarkeit
JPH10130787A (ja) * 1996-10-29 1998-05-19 Kawasaki Steel Corp 耐応力腐食割れ性および高温引張り特性に優れた油井管用高強度マルテンサイト系ステンレス鋼
US5820699A (en) * 1994-07-21 1998-10-13 Nippon Steel Corp. Martensitic stainless steel having excellent hot workability and sulfide stress cracking resistance
JP2000063997A (ja) * 1998-08-25 2000-02-29 Sumitomo Metal Ind Ltd マルテンサイト系ステンレス溶接鋼管
JP2000192203A (ja) * 1998-10-12 2000-07-11 Sumitomo Metal Ind Ltd ダウンホ―ル部材用マルテンサイト系ステンレス鋼とその製法
JP2000192196A (ja) * 1998-12-22 2000-07-11 Sumitomo Metal Ind Ltd 油井用マルテンサイト系ステンレス鋼
EP1026273A1 (de) * 1997-07-18 2000-08-09 Sumitomo Metal Industries Limited Martensitischer rostfreier stahl mit hohem korrosionswiderstand
JP2000328201A (ja) * 1999-05-17 2000-11-28 Nippon Steel Corp 熱間加工性に優れたマルテンサイト系ステンレス鋼材
JP2001107198A (ja) * 1999-10-07 2001-04-17 Nippon Steel Corp 耐ｓｓｃ性に優れたマルテンサイト系ステンレス鋼ラインパイプおよびその製造方法
JP2001279392A (ja) * 2000-03-30 2001-10-10 Sumitomo Metal Ind Ltd マルテンサイト系ステンレス鋼および製造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51133807A (en) * 1975-05-14 1976-11-19 Hitachi Ltd Turbo type impeller with high performance
MY114984A (en) * 1995-01-13 2003-03-31 Hitachi Metals Ltd High hardness martensitic stainless steel with good pitting corrosion resistance
CN1114715C (zh) * 2000-11-15 2003-07-16 浦项产业科学研究院 具有高机械强度和抗腐蚀的马氏体不锈钢

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02243740A (ja) * 1989-03-15 1990-09-27 Sumitomo Metal Ind Ltd 油井用マルテンサイト系ステンレス鋼材とその製造方法
JPH03120337A (ja) * 1989-10-03 1991-05-22 Sumitomo Metal Ind Ltd マルテンサイト系ステンレス鋼と製造方法
JPH05156409A (ja) * 1991-11-29 1993-06-22 Nippon Steel Corp 耐海水性に優れた高強度マルテンサイトステンレス鋼とその製造方法
US5820699A (en) * 1994-07-21 1998-10-13 Nippon Steel Corp. Martensitic stainless steel having excellent hot workability and sulfide stress cracking resistance
EP0798394A1 (de) * 1996-03-27 1997-10-01 Kawasaki Steel Corporation Martensitisches Stahl für Rohre mit guter Korrosionsbeständigkeit und guter Schweissbarkeit
JPH10130787A (ja) * 1996-10-29 1998-05-19 Kawasaki Steel Corp 耐応力腐食割れ性および高温引張り特性に優れた油井管用高強度マルテンサイト系ステンレス鋼
EP1026273A1 (de) * 1997-07-18 2000-08-09 Sumitomo Metal Industries Limited Martensitischer rostfreier stahl mit hohem korrosionswiderstand
JP2000063997A (ja) * 1998-08-25 2000-02-29 Sumitomo Metal Ind Ltd マルテンサイト系ステンレス溶接鋼管
JP2000192203A (ja) * 1998-10-12 2000-07-11 Sumitomo Metal Ind Ltd ダウンホ―ル部材用マルテンサイト系ステンレス鋼とその製法
JP2000192196A (ja) * 1998-12-22 2000-07-11 Sumitomo Metal Ind Ltd 油井用マルテンサイト系ステンレス鋼
JP2000328201A (ja) * 1999-05-17 2000-11-28 Nippon Steel Corp 熱間加工性に優れたマルテンサイト系ステンレス鋼材
JP2001107198A (ja) * 1999-10-07 2001-04-17 Nippon Steel Corp 耐ｓｓｃ性に優れたマルテンサイト系ステンレス鋼ラインパイプおよびその製造方法
JP2001279392A (ja) * 2000-03-30 2001-10-10 Sumitomo Metal Ind Ltd マルテンサイト系ステンレス鋼および製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2004057050A1 *

Also Published As

Publication number Publication date
JPWO2004057050A1 (ja) 2006-04-20
CN1729306A (zh) 2006-02-01
CA2509581C (en) 2010-04-06
BRPI0317550B1 (pt) 2016-06-14
NO20052986L (no) 2005-09-15
US20050224143A1 (en) 2005-10-13
MXPA05006562A (es) 2005-08-16
CA2509581A1 (en) 2004-07-08
EP1584699A1 (de) 2005-10-12
AR042494A1 (es) 2005-06-22
RU2307876C2 (ru) 2007-10-10
BR0317550A (pt) 2005-11-22
NO337858B1 (no) 2016-07-04
JP4428237B2 (ja) 2010-03-10
NO20052986D0 (no) 2005-06-17
AU2003289437B2 (en) 2007-09-20
WO2004057050A1 (ja) 2004-07-08
RU2005122929A (ru) 2006-02-10
AU2003289437A1 (en) 2004-07-14
CN100368579C (zh) 2008-02-13

Similar Documents

Publication Publication Date Title
EP1584699A4 (de) Hochfester martensitischer edelstahl mit hervorragender beständigkeit gegen kohlensäurekorrosion und sulfid-spannungsrisskorrosion
EP1662015A4 (de) Rohr aus hochfestem nichtrostendem stahl mit hervorragender korrosionsbeständigkeit zur verwendung in erdölbohrlöchern und herstellungsverfahren dafür
EP1645649A4 (de) Austenitischer nichtrostender stahl für wasserstoffgas und herstellungsverfahren dafür
EP2341161A4 (de) Hochfestes edelstahlröhrenwerk mit hervorragender festigkeit gegen sulphidbelastungsbruch und festigkeit gegen hochtemperatur-kohlendioxid-korrosion
ZA200801068B (en) Method of producing high-strength steel plates with excellent ductility and plates thus produced
PL2229463T3 (pl) Odporna na korozję zubożona austenityczna stal nierdzewna
EP1683885A4 (de) Rohr aus hochfestem nichtrostendem stahl mit hervorragender korrosionsbeständigkeit und herstellungsverfahren dafür
DE602004032497D1 (de) Rostfreier Stahl und rostfreies Stahlrohr beständig gegen Aufkohlung
EP1652950A4 (de) Martensitischer nichtrostender stahl
EP2108710A4 (de) Edelstahl auf austenitbasis und verfahren zu seiner dehydrogenierung
EP1715071A4 (de) Austenitischer nichtrostender stahl, herstellungsverfahren dafür und struktur damit
PT1563106E (pt) Aços trabalhados a frio com microestrutura de martensite/austenite de ripas em pacotes
EP2070995A4 (de) Hochkorrosionsresistentes rostverhinderndes beschichtungsmaterial, stahlmaterial mit hoher korrosionsresistenz sowie stahlkonstruktion
DE60133134D1 (de) Ferritischer nichtrostender stahl und martensitischer rostfreier stahl mit hervorragender zerspanbarkeit
EP1712651A4 (de) Nahtloses stahlrohr für ölsenkungen mit ausgezeichneter beständigkeit gegenüber sulfidbedingter spannungsrissbildung und verfahren zu dessen herstellung
HUP0303218A3 (en) Aluminium alloy with intergranular corrosion resistance, methods of manufacturing and its use
DE69821486D1 (de) Stahl für ölbohrlochrohre mit hohem korrosionswiderstand gegen feuchtes kohlendioxidgas und mit hohem korrosionswiderstand gegen seewasser, sowie nahtlose ölbohrlochrohre
IL227690A0 (en) Stainless steel of austenitic iron with low concentrations of other ores
HK1078618A1 (en) Surface-carbonitrided stainless steel parts excellent in wear resistance and method for their manufacture
EP2067527A4 (de) Katalysator zur kohlenmonoxid-umwandlung und verfahren zur kohlenmonoxid-modifikation damit
EP1514949A4 (de) PLATTE AUS FERRITISCHEM NICHTROSTENDEM STAHL MIT Ti UND HERSTELLUNGSVERFAHREN DAFÜR
EP1838890A4 (de) Duplexedelstahl mit hervorragender korrosionsbeständigkeit mit geringem nickel
PL1729582T3 (pl) Zastosowanie ulwanów jako aktywatorów reakcji obronnych roślin i odporności na stres biotyczny lub abiotyczny
EP1820868A4 (de) Legierung mit hoher härte, hoher korrosionsbeständigkeit und hoher abriebfestigkeit
EP1951922A4 (de) Stahlblech mit verbesserter korrosionsbeständigkeit für autoschalldämpfer und verfahren zur herstellung des stahlblechs

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050707

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20090508

RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 1/18 20060101ALI20090429BHEP

Ipc: C22C 38/04 20060101ALI20090429BHEP

Ipc: C22C 38/02 20060101ALI20090429BHEP

Ipc: C21D 6/00 20060101ALI20090429BHEP

Ipc: C22C 38/58 20060101ALI20090429BHEP

Ipc: C22C 38/00 20060101AFI20040716BHEP

17Q First examination report despatched

Effective date: 20091130

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100611