EP1352982A3 - Nichtrostender Stahl, Verfahren zum Herstellen von spannungsrissfreien Formteilen und Formteil - Google Patents

Nichtrostender Stahl, Verfahren zum Herstellen von spannungsrissfreien Formteilen und Formteil Download PDF

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Publication number
EP1352982A3
EP1352982A3 EP03008317A EP03008317A EP1352982A3 EP 1352982 A3 EP1352982 A3 EP 1352982A3 EP 03008317 A EP03008317 A EP 03008317A EP 03008317 A EP03008317 A EP 03008317A EP 1352982 A3 EP1352982 A3 EP 1352982A3
Authority
EP
European Patent Office
Prior art keywords
stainless steel
manufacturing
ferrite
vol
balance
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.)
Granted
Application number
EP03008317A
Other languages
English (en)
French (fr)
Other versions
EP1352982A2 (de
EP1352982B1 (de
Inventor
Gabriele Dr. Brückner
Hans-Joachim Dr. Rer. Nat. Krautschick
Wolfgang Dr. Rer. Nat. Schlump
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.)
Outokumpu Nirosta GmbH
Original Assignee
ThyssenKrupp Nirosta GmbH
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 ThyssenKrupp Nirosta GmbH filed Critical ThyssenKrupp Nirosta GmbH
Publication of EP1352982A2 publication Critical patent/EP1352982A2/de
Publication of EP1352982A3 publication Critical patent/EP1352982A3/de
Application granted granted Critical
Publication of EP1352982B1 publication Critical patent/EP1352982B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/18—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
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • 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
    • C21D2211/001—Austenite
    • 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
    • C21D2211/005—Ferrite
    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling

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 Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Die Erfindung betrifft einen kostengünstig herstellbaren nichtrostenden Stahl, der auch bei konventioneller Kaltumformung unempfindlich gegen die Entstehung von Spannungsrissen ist, sowie ein Verfahren zur Herstellung von spannungsrißfreien, kaltumgeformten Bauteilen. Bei dem erfindungsgemäßen Stahl wird anstelle des einphasigen rein austenitischen Gefüges ein zweiphasiges Mischgefüge vorgesehen, bei dem durch Zulegieren von Si und/oder Mo und teilweise unter Absenkung des Ni-Gehaltes bzw. durch Austausch von Ni durch Cu die Austenit- (A) und Ferrit- (F) Anteile eingestellt sind. Der Austenit wird dabei soweit stabilisiert, daß die Martensitbildung bei Verformung nicht mehr zu Spannungsrissen führt.
EP03008317A 2002-04-10 2003-04-10 Nichtrostender Stahl, Verfahren zum Herstellen von spannungsrissfreien Formteilen und Formteil Expired - Lifetime EP1352982B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10215598A DE10215598A1 (de) 2002-04-10 2002-04-10 Nichtrostender Stahl, Verfahren zum Herstellen von spannungsrißfreien Formteilen und Formteil
DE10215598 2002-04-10

Publications (3)

Publication Number Publication Date
EP1352982A2 EP1352982A2 (de) 2003-10-15
EP1352982A3 true EP1352982A3 (de) 2004-01-07
EP1352982B1 EP1352982B1 (de) 2005-10-05

Family

ID=28051225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03008317A Expired - Lifetime EP1352982B1 (de) 2002-04-10 2003-04-10 Nichtrostender Stahl, Verfahren zum Herstellen von spannungsrissfreien Formteilen und Formteil

Country Status (4)

Country Link
EP (1) EP1352982B1 (de)
AT (1) ATE305986T1 (de)
DE (2) DE10215598A1 (de)
ES (1) ES2250773T3 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090005252A (ko) * 2004-01-29 2009-01-12 제이에프이 스틸 가부시키가이샤 오스테나이트·페라이트계 스테인레스 강
DE102005024029B3 (de) * 2005-05-23 2007-01-04 Technische Universität Bergakademie Freiberg Austenitischer Leichtbaustahl und seine Verwendung
ITRM20070069A1 (it) * 2007-02-12 2008-08-13 Thyssenkrupp Acciai Speciali Acciaio inossidabile austenitico
EP2163659B1 (de) 2008-09-11 2016-06-08 Outokumpu Nirosta GmbH Nichtrostender Stahl, aus diesem Stahl hergestelltes Kaltband und Verfahren zur Herstellung eines Stahlflachprodukts aus diesem Stahl
FI122657B (fi) 2010-04-29 2012-05-15 Outokumpu Oy Menetelmä korkean muokattavuuden omaavan ferriittis-austeniittisen ruostumattoman teräksen valmistamiseksi ja hyödyntämiseksi
KR20120132691A (ko) 2010-04-29 2012-12-07 오또꿈뿌 오와이제이 높은 성형성을 구비하는 페라이트-오스테나이트계 스테인리스 강의 제조 및 사용 방법
FI125442B (fi) 2010-05-06 2015-10-15 Outokumpu Oy Matalanikkelinen austeniittinen ruostumaton teräs ja teräksen käyttö
KR101460279B1 (ko) 2012-12-24 2014-11-11 주식회사 포스코 Ｃｒ－Ｍｎ계 스테인리스강
DE102013003516A1 (de) * 2013-03-04 2014-09-04 Outokumpu Nirosta Gmbh Verfahren zur Herstellung eines ultrahochfesten Werkstoffs mit hoher Dehnung
DE102015005742A1 (de) * 2015-05-05 2016-11-10 Dbi Gas- Und Umwelttechnik Gmbh Verfahren zur Herstellung von Feinblech aus einem nichtrostenden, austenitischen CrMnNi-Stahl

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2163511A1 (de) * 1971-12-21 1972-07-13 Armco Steel Corp Austenitisch-ferritischer rostfreier Stahl
US3861908A (en) * 1973-08-20 1975-01-21 Crucible Inc Duplex stainless steel
JPH05247594A (ja) * 1992-03-03 1993-09-24 Sumitomo Metal Ind Ltd 耐候性に優れた二相ステンレス鋼
US6096441A (en) * 1997-06-30 2000-08-01 Usinor Austenoferritic stainless steel having a very low nickel content and a high tensile elongation
WO2002027056A1 (en) * 2000-09-27 2002-04-04 Avestapolarit Aktiebolag (Publ) Ferritic-austenitic stainless steel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2045584A1 (de) * 1969-06-03 1971-03-05 Ugine Kuhlmann
DE3825634C2 (de) * 1988-07-28 1994-06-30 Thyssen Stahl Ag Verfahren zur Erzeugung von Warmbad oder Grobblechen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2163511A1 (de) * 1971-12-21 1972-07-13 Armco Steel Corp Austenitisch-ferritischer rostfreier Stahl
US3861908A (en) * 1973-08-20 1975-01-21 Crucible Inc Duplex stainless steel
JPH05247594A (ja) * 1992-03-03 1993-09-24 Sumitomo Metal Ind Ltd 耐候性に優れた二相ステンレス鋼
US6096441A (en) * 1997-06-30 2000-08-01 Usinor Austenoferritic stainless steel having a very low nickel content and a high tensile elongation
WO2002027056A1 (en) * 2000-09-27 2002-04-04 Avestapolarit Aktiebolag (Publ) Ferritic-austenitic stainless steel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 004 (C - 1149) 6 January 1994 (1994-01-06) *

Also Published As

Publication number Publication date
EP1352982A2 (de) 2003-10-15
ES2250773T3 (es) 2006-04-16
EP1352982B1 (de) 2005-10-05
ATE305986T1 (de) 2005-10-15
DE10215598A1 (de) 2003-10-30
DE50301283D1 (de) 2006-02-16

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