DE50307092D1 - FERRITIC STEEL ALLOY - Google Patents

FERRITIC STEEL ALLOY

Info

Publication number
DE50307092D1
DE50307092D1 DE50307092T DE50307092T DE50307092D1 DE 50307092 D1 DE50307092 D1 DE 50307092D1 DE 50307092 T DE50307092 T DE 50307092T DE 50307092 T DE50307092 T DE 50307092T DE 50307092 D1 DE50307092 D1 DE 50307092D1
Authority
DE
Germany
Prior art keywords
percent
weight
alloys
steel alloy
ferritic steel
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.)
Expired - Fee Related
Application number
DE50307092T
Other languages
German (de)
Inventor
Karl-Heinz Kramer
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.)
FIRTH AG
Original Assignee
FIRTH AG
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 FIRTH AG filed Critical FIRTH AG
Application granted granted Critical
Publication of DE50307092D1 publication Critical patent/DE50307092D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C22C38/02—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
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • 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
    • C22C38/04—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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Abstract

Steel alloys include no more than 1.00 percent by weight of silicon, 18.0 to 22.0 percent by weight of chromium, 1.80 to 2.50 percent by weight of molybdenum, 0.01 to 0.10 percent by weight of nitrogen, no more than 0.01 percent by weight of titanium, no more than 0.01 percent by weight of niobium, no more than 0.01 percent by weight of aluminum, the remainder being essentially iron. The alloys are ferritic but polishable and have mechanical properties that nearly match those of the standard steel alloy no. 1.4521. The steel alloys are processed into watch parts such as housing bottoms, housing shells, and faces, among others, such that watch housings produced from the alloys magnetically shield the clockwork.
DE50307092T 2002-10-04 2003-09-30 FERRITIC STEEL ALLOY Expired - Fee Related DE50307092D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH16592002 2002-10-04
PCT/CH2003/000651 WO2004031430A1 (en) 2002-10-04 2003-09-30 Ferritic steel alloy

Publications (1)

Publication Number Publication Date
DE50307092D1 true DE50307092D1 (en) 2007-05-31

Family

ID=32046629

Family Applications (1)

Application Number Title Priority Date Filing Date
DE50307092T Expired - Fee Related DE50307092D1 (en) 2002-10-04 2003-09-30 FERRITIC STEEL ALLOY

Country Status (8)

Country Link
US (1) US20060130938A1 (en)
EP (1) EP1546427B1 (en)
JP (1) JP2006501368A (en)
CN (1) CN1325687C (en)
AT (1) ATE360103T1 (en)
AU (1) AU2003264228A1 (en)
DE (1) DE50307092D1 (en)
WO (1) WO2004031430A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007248397A (en) * 2006-03-17 2007-09-27 Seiko Epson Corp Decoration and timepiece
JP5212602B2 (en) * 2007-09-14 2013-06-19 セイコーエプソン株式会社 Device and housing material manufacturing method
EP2813906A1 (en) * 2013-06-12 2014-12-17 Nivarox-FAR S.A. Part for clockwork
US10063074B2 (en) 2016-04-01 2018-08-28 Hewlett-Packard Development Company, L.P. Electronic wearable device electrode pad with collection well
JP7413685B2 (en) 2019-09-05 2024-01-16 セイコーエプソン株式会社 Metal materials, watch parts and watches
JP7404721B2 (en) 2019-09-05 2023-12-26 セイコーエプソン株式会社 Metal materials, watch parts and watches
JP7272233B2 (en) 2019-10-30 2023-05-12 セイコーエプソン株式会社 Watch parts and watches
JP7294074B2 (en) 2019-11-11 2023-06-20 セイコーエプソン株式会社 Austenitized ferritic stainless steels, parts for watches and clocks
JP2021096076A (en) * 2019-12-13 2021-06-24 セイコーエプソン株式会社 Watch exterior part, watch, and manufacturing method of watch exterior part
JP2021096079A (en) 2019-12-13 2021-06-24 セイコーエプソン株式会社 Housing and apparatus

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2848323A (en) * 1955-02-28 1958-08-19 Birmingham Small Arms Co Ltd Ferritic steel for high temperature use
GB1359629A (en) * 1971-10-26 1974-07-10 Deutsche Edelstahlwerke Gmbh Corrosion-resistant ferritic chrome steel
US3953201A (en) * 1974-03-07 1976-04-27 Allegheny Ludlum Industries, Inc. Ferritic stainless steel
US4340424A (en) * 1974-04-23 1982-07-20 Daido Tokushuko Kabushiki Kaisha Ferritic stainless steel having excellent machinability and local corrosion resistance
JPS5188413A (en) * 1975-02-01 1976-08-03 Kotaishokuseifueraitosutenresuko
EP0379061B1 (en) * 1989-01-18 1992-12-23 Eta SA Fabriques d'Ebauches Exterior cover part for a watch, and method for manufacturing the same
FR2705596B1 (en) * 1993-05-24 1995-07-13 Impac Technologies Method of injection molding of slips and device for its implementation.
KR0169172B1 (en) * 1994-02-15 1999-01-15 아키모토 유우미 Fe-cr alloy
JPH07244172A (en) * 1994-03-03 1995-09-19 Seiko Instr Inc Manufacture of watch component
JP3205162B2 (en) * 1994-03-10 2001-09-04 新日本製鐵株式会社 Ferritic stainless steel with excellent machinability and corrosion resistance
JP3589036B2 (en) * 1997-08-05 2004-11-17 Ｊｆｅスチール株式会社 Ferritic stainless steel sheet excellent in deep drawability and ridging resistance and method for producing the same
JPH11323502A (en) * 1998-05-12 1999-11-26 Sumitomo Metal Ind Ltd Ferritic stainless steel excellent in workability and toughness and slab thereof
EP0964071A1 (en) * 1998-06-12 1999-12-15 Asulab S.A. Ferritic stainless steel and exterior cover part for a watch made with such a steel

Also Published As

Publication number Publication date
CN1325687C (en) 2007-07-11
CN1688734A (en) 2005-10-26
AU2003264228A1 (en) 2004-04-23
EP1546427B1 (en) 2007-04-18
WO2004031430A1 (en) 2004-04-15
EP1546427A1 (en) 2005-06-29
JP2006501368A (en) 2006-01-12
US20060130938A1 (en) 2006-06-22
ATE360103T1 (en) 2007-05-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee