EP0818552A3 - Rostfreie ferritisch-austenitische Gussstahllegierung - Google Patents

Rostfreie ferritisch-austenitische Gussstahllegierung Download PDF

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Publication number
EP0818552A3
EP0818552A3 EP97111887A EP97111887A EP0818552A3 EP 0818552 A3 EP0818552 A3 EP 0818552A3 EP 97111887 A EP97111887 A EP 97111887A EP 97111887 A EP97111887 A EP 97111887A EP 0818552 A3 EP0818552 A3 EP 0818552A3
Authority
EP
European Patent Office
Prior art keywords
ferritic
stainless steel
austenitic stainless
steel casting
casting alloy
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
EP97111887A
Other languages
English (en)
French (fr)
Other versions
EP0818552A2 (de
EP0818552B1 (de
Inventor
Willi Kleemann
Benno Hoffmann
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.)
Schmidt and Clemens GmbH and Co KG
Original Assignee
Schmidt and Clemens GmbH and Co
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 Schmidt and Clemens GmbH and Co filed Critical Schmidt and Clemens GmbH and Co
Publication of EP0818552A2 publication Critical patent/EP0818552A2/de
Publication of EP0818552A3 publication Critical patent/EP0818552A3/de
Application granted granted Critical
Publication of EP0818552B1 publication Critical patent/EP0818552B1/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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Rostfreie ferritisch-austenitische Gußstahllegierung mit hoher Korrosionsbeständigkeit, insbesondere Lochfraßbeständigkeit in chloridischen Medien und hoher Festigkeit aus bis 0,030% Kohlenstoff, bis 0,30% Silizium, bis 0,40% Mangan, 8 bis 10,0% oder 6,5 bis 8,5% oder 5,5 bis 6,5% Nickel, bis 0,30% Kobalt, 0,25 bis 0,325% oder bis 0,30% Stickstoff, 26,5 bis 27,5%, 24,5 bis 26,0% oder 23 bis 24% Chrom, 4,25 bis 5,0%, 4,0 bis 4,5% oder 3,5 bis 4,0% Molybdän, bis 1,0% Wolfram, bis 0,2% Vanadium, bis 0,30% Niob, bis 0,30% Tantal, mit im Verhältnis zum Gesamtgehalt an Kohlenstoff und Stickstoff aufeinander abgestimmten Gehalten an Vanadium, Niob, Tantal und Wolfram, Rest Eisen einschließlich erschmelzungsbedingte Verunreinigungen.
EP97111887A 1996-07-13 1997-07-12 Rostfreie ferritisch-austenitische Gussstahllegierung Expired - Lifetime EP0818552B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19628350 1996-07-13
DE19628350A DE19628350B4 (de) 1996-07-13 1996-07-13 Verwendung einer rostfreien ferritisch-austenitischen Stahllegierung

Publications (3)

Publication Number Publication Date
EP0818552A2 EP0818552A2 (de) 1998-01-14
EP0818552A3 true EP0818552A3 (de) 1998-03-25
EP0818552B1 EP0818552B1 (de) 2004-11-24

Family

ID=7799785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97111887A Expired - Lifetime EP0818552B1 (de) 1996-07-13 1997-07-12 Rostfreie ferritisch-austenitische Gussstahllegierung

Country Status (3)

Country Link
EP (1) EP0818552B1 (de)
DE (2) DE19628350B4 (de)
ES (1) ES2233986T3 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR0010976A (pt) 1999-05-27 2002-03-26 Sandvik Ab Modificação da superfìcie de ligas de alta temperatura
SE0000678L (sv) * 2000-03-02 2001-04-30 Sandvik Ab Duplext rostfritt stål
KR101702252B1 (ko) * 2013-01-15 2017-02-03 가부시키가이샤 고베 세이코쇼 2상 스테인리스강재 및 2상 스테인리스강관
CN105492641A (zh) * 2013-08-28 2016-04-13 株式会社日立制作所 双相不锈钢及使用它的双相不锈钢制结构物、海洋结构物、石油/气体环境结构物、泵叶轮、泵壳及流量调节阀的阀体
JP2017095794A (ja) * 2015-11-17 2017-06-01 株式会社神戸製鋼所 二相ステンレス鋼材および二相ステンレス鋼管
CN113215478B (zh) * 2021-05-14 2022-03-04 东北大学 一种提升超级不锈钢抗高温氧化性能的方法
CN114921710A (zh) * 2022-05-20 2022-08-19 青田保俐铸造有限公司 一种提高不锈钢304铸件耐腐蚀的铸造工艺

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2721998A1 (de) * 1976-05-15 1977-12-08 Nippon Steel Corp Rostfreie chrom-nickel-stahllegierung
EP0220141A2 (de) * 1985-09-05 1987-04-29 Santrade Ltd. Rostfreier Duplexstahl mit hohem Stickstoffgehalt und gekennzeichnet durch hohe Korrosionsfestigkeit und gute Strukturstabilität
US4715908A (en) * 1985-11-26 1987-12-29 Esco Corporation Duplex stainless steel product with improved mechanical properties
JPH02258956A (ja) * 1989-03-29 1990-10-19 Sumitomo Metal Ind Ltd 熱間加工性に優れた高耐食二相ステンレス鋼
EP0534864A1 (de) * 1991-09-30 1993-03-31 Sumitomo Metal Industries, Ltd. Rostfreies Duplex-Stahl mit erhöhter Korrosionsbeständigkeit und Verfahren zur Herstellung
EP0545753A1 (de) * 1991-11-11 1993-06-09 Sumitomo Metal Industries, Ltd. Rostfreies Duplexstahl mit verbesserten Festigkeits- und Korrosionsbeständigkeitseigenschaften
WO1995000674A1 (en) * 1993-06-21 1995-01-05 Sandvik Ab Ferritic-austenitic stainless steel and use of the steel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3310693A1 (de) * 1983-03-24 1984-10-04 Fried. Krupp Gmbh, 4300 Essen Korrosionsbestaendiger chromstahl und verfahren zu seiner herstellung
SE451465B (sv) * 1984-03-30 1987-10-12 Sandvik Steel Ab Ferrit-austenitiskt rostfritt stal mikrolegerat med molybden och koppar och anvendning av stalet
JP3236713B2 (ja) * 1993-10-20 2001-12-10 川崎製鉄株式会社 深絞り成形性に優れたＦｅ−Ｃｒ−Ｎｉ系合金

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2721998A1 (de) * 1976-05-15 1977-12-08 Nippon Steel Corp Rostfreie chrom-nickel-stahllegierung
EP0220141A2 (de) * 1985-09-05 1987-04-29 Santrade Ltd. Rostfreier Duplexstahl mit hohem Stickstoffgehalt und gekennzeichnet durch hohe Korrosionsfestigkeit und gute Strukturstabilität
US4715908A (en) * 1985-11-26 1987-12-29 Esco Corporation Duplex stainless steel product with improved mechanical properties
JPH02258956A (ja) * 1989-03-29 1990-10-19 Sumitomo Metal Ind Ltd 熱間加工性に優れた高耐食二相ステンレス鋼
EP0534864A1 (de) * 1991-09-30 1993-03-31 Sumitomo Metal Industries, Ltd. Rostfreies Duplex-Stahl mit erhöhter Korrosionsbeständigkeit und Verfahren zur Herstellung
EP0545753A1 (de) * 1991-11-11 1993-06-09 Sumitomo Metal Industries, Ltd. Rostfreies Duplexstahl mit verbesserten Festigkeits- und Korrosionsbeständigkeitseigenschaften
WO1995000674A1 (en) * 1993-06-21 1995-01-05 Sandvik Ab Ferritic-austenitic stainless steel and use of the steel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 15, no. 007 (C - 0794) 9 January 1991 (1991-01-09) *

Also Published As

Publication number Publication date
EP0818552A2 (de) 1998-01-14
ES2233986T3 (es) 2005-06-16
EP0818552B1 (de) 2004-11-24
DE19628350B4 (de) 2004-04-15
DE19628350A1 (de) 1998-01-15
DE59712090D1 (de) 2004-12-30

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