EP1087029A3 - Improved steel composition - Google Patents

Improved steel composition Download PDF

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Publication number
EP1087029A3
EP1087029A3 EP00107561A EP00107561A EP1087029A3 EP 1087029 A3 EP1087029 A3 EP 1087029A3 EP 00107561 A EP00107561 A EP 00107561A EP 00107561 A EP00107561 A EP 00107561A EP 1087029 A3 EP1087029 A3 EP 1087029A3
Authority
EP
European Patent Office
Prior art keywords
steel
nickel
nitrogen
good
promoter
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Withdrawn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
EP00107561A
Other languages
German (de)
French (fr)
Other versions
EP1087029A2 (en
Inventor
Stuart David c/o Heymark Metals Ltd. Wardall
John Edwin c/o Heymark Metals Limited Fryer
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.)
Heymark Metals Ltd
Original Assignee
Heymark Metals 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 Heymark Metals Ltd filed Critical Heymark Metals Ltd
Publication of EP1087029A2 publication Critical patent/EP1087029A2/en
Publication of EP1087029A3 publication Critical patent/EP1087029A3/en
Withdrawn legal-status Critical Current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
    • C22C38/001—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
    • C22C38/38—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials For Medical Uses (AREA)

Abstract

The invention relates to a steel composition which is substantially free of nickel and which can be used for medical implants and/or jewellery manufacture. Some humans experience severe allergic reactions to Nickel and therefore there has been a desire for some time to provide a Nickel free steel. Nickel is an important constituent of surgical grade steel because it is a good austenite promoter, and steel thus formed has good strength properties and has paramagnetic characteristics which are essential for such steels. The absence of Nickel results in the formation of ferritic steel which is ferromagnetic, which cannot be used for medical implants. The invention results from the realisation that Nitrogen is a good promoter of austenitic steel structures, and although Nitrogen is a gas and thus generally insoluble in molten steel, a careful balance of additional alloying elements such as Manganese, Chromium, and Molybdenum, with Iron can result in a molten alloy in which Nitrogen can be dissolved at atmospheric pressure to a degree at which its austenitic steel structure promotion effects are readily appreciable.
EP00107561A 1999-09-27 2000-04-07 Improved steel composition Withdrawn EP1087029A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9922757.1A GB9922757D0 (en) 1999-09-27 1999-09-27 Improved steel composition
GB9922757 1999-09-27

Publications (2)

Publication Number Publication Date
EP1087029A2 EP1087029A2 (en) 2001-03-28
EP1087029A3 true EP1087029A3 (en) 2001-05-16

Family

ID=10861624

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00107561A Withdrawn EP1087029A3 (en) 1999-09-27 2000-04-07 Improved steel composition

Country Status (2)

Country Link
EP (1) EP1087029A3 (en)
GB (2) GB9922757D0 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2275074T3 (en) 2003-04-22 2007-06-01 Curaden International Ag INTERDENTAL BRUSH.
DE102009003598A1 (en) * 2009-03-10 2010-09-16 Max-Planck-Institut Für Eisenforschung GmbH Corrosion-resistant austenitic steel
EP2617839A1 (en) * 2012-01-18 2013-07-24 MeKo Laserstrahl-Materialbearbeitungen e.K. Nickel-free iron alloy for stents
CN103374685B (en) * 2012-04-23 2016-06-08 钢铁研究总院 A kind of stainless material and manufacture method thereof
CN103233174B (en) * 2013-04-26 2015-06-10 中国科学院金属研究所 High-nitrogen austenitic stainless steel for vascular stent and application thereof
CN104878316A (en) * 2014-02-27 2015-09-02 南京理工大学 High-strength high-toughness high-nitrogen austenitic stainless steel
KR20200046831A (en) * 2018-10-25 2020-05-07 주식회사 포스코 Low temperature austenitic high manganese steel having excellent surface quality and resistance to stress corrosion cracking, and manufacturing method for the same
CN113817969B (en) * 2020-06-19 2022-09-27 香港大学 High-strength super-corrosion-resistant non-magnetic stainless steel and preparation method thereof
EP4316727A1 (en) 2022-08-05 2024-02-07 Outokumpu Oyj Filler metal for welding of dissimilar welds
WO2024056822A1 (en) 2022-09-14 2024-03-21 Danmarks Tekniske Universitet Methods for improving corrosion and wear resistance and strength of essentially nickel-free high-manganese austenitic stainless steel components

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB778597A (en) * 1955-02-15 1957-07-10 Ford Motor Co Improvements in or relating to the manufacture of nitrogen-rich wrought austenitic alloys
FR2493344A1 (en) * 1980-11-05 1982-05-07 Gen Electric
JPS61238943A (en) * 1985-04-15 1986-10-24 Kobe Steel Ltd High-strength non-magnetic steel excelling in rust resistance
DE4242757C1 (en) * 1992-12-17 1994-03-24 Krupp Vdm Gmbh Low nickel@ content steel alloy for jewellery, etc - comprises silicon@, manganese@, nitrogen@, chromium@, phosphorus@, sulphur@, copper@ and molybdenum@
JPH10121203A (en) * 1996-10-09 1998-05-12 Daido Steel Co Ltd Nonmagnetic stainless steel for organism

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1205659A (en) * 1981-03-20 1986-06-10 Masao Yamamoto Corrosion-resistant non-magnetic steel and retaining ring for a generator made of it
AT397968B (en) * 1992-07-07 1994-08-25 Boehler Ybbstalwerke CORROSION-RESISTANT ALLOY FOR USE AS A MATERIAL FOR PARTS IN CONTACT WITH LIFE
DE19513407C1 (en) * 1995-04-08 1996-10-10 Vsg En & Schmiedetechnik Gmbh Steel alloy used for jewellery implants and dental applications
DK0875591T3 (en) * 1997-04-29 2000-10-23 Boehler Edelstahl Gmbh & Co Kg Use of a biocompatible skin compatible alloy

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB778597A (en) * 1955-02-15 1957-07-10 Ford Motor Co Improvements in or relating to the manufacture of nitrogen-rich wrought austenitic alloys
FR2493344A1 (en) * 1980-11-05 1982-05-07 Gen Electric
JPS61238943A (en) * 1985-04-15 1986-10-24 Kobe Steel Ltd High-strength non-magnetic steel excelling in rust resistance
DE4242757C1 (en) * 1992-12-17 1994-03-24 Krupp Vdm Gmbh Low nickel@ content steel alloy for jewellery, etc - comprises silicon@, manganese@, nitrogen@, chromium@, phosphorus@, sulphur@, copper@ and molybdenum@
JPH10121203A (en) * 1996-10-09 1998-05-12 Daido Steel Co Ltd Nonmagnetic stainless steel for organism

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
MENZEL ET AL: "High nitrogen containing Ni-free austenitic steels for medical applications", ISIJ INTERNATIONAL,JP,TOKYO, vol. 7, no. 36, 1996, pages 893 - 900, XP002074520 *
PATENT ABSTRACTS OF JAPAN vol. 011, no. 085 (C - 410) 14 March 1987 (1987-03-14) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 10 31 August 1998 (1998-08-31) *

Also Published As

Publication number Publication date
EP1087029A2 (en) 2001-03-28
GB9922757D0 (en) 1999-11-24
GB2345491B (en) 2000-12-06
GB0008103D0 (en) 2000-05-24
GB2345491A (en) 2000-07-12

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