EP1085105B1 - Automatenlegierung - Google Patents

Automatenlegierung Download PDF

Info

Publication number
EP1085105B1
EP1085105B1 EP20000118990 EP00118990A EP1085105B1 EP 1085105 B1 EP1085105 B1 EP 1085105B1 EP 20000118990 EP20000118990 EP 20000118990 EP 00118990 A EP00118990 A EP 00118990A EP 1085105 B1 EP1085105 B1 EP 1085105B1
Authority
EP
European Patent Office
Prior art keywords
mass
content
including zero
alloy
free cutting
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 - Lifetime
Application number
EP20000118990
Other languages
English (en)
French (fr)
Other versions
EP1085105A2 (de
EP1085105A3 (de
Inventor
Kiyohito Ishida
Katsunari Oikawa
Takashi c/o Tohoku Tokushuko K.K. Ebata
Takayuki Inoguchi
Tetsuya Shimizu
Michio Okabe
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.)
ISHIDA, KIYOHITO
OIKAWA, KATSUNARI
Daido Steel Co Ltd
Tohoku Tokushuko KK
Tohoku Techno Arch Co Ltd
Japan Research Industries and Industrial Technology Association (JRIA)
Original Assignee
Daido Steel Co Ltd
Tohoku Tokushuko KK
Tohoku Steel Co Ltd
Tohoku Techno Arch Co Ltd
Japan Research Industries and Industrial Technology Association (JRIA)
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
Priority claimed from JP2000070257A external-priority patent/JP3425114B2/ja
Priority claimed from JP2000221433A external-priority patent/JP3425124B2/ja
Priority claimed from JP2000251602A external-priority patent/JP3425128B2/ja
Priority claimed from JP2000251626A external-priority patent/JP3425129B2/ja
Priority to EP04004045A priority Critical patent/EP1431411B1/de
Priority to EP04004043A priority patent/EP1431409B1/de
Priority to EP04004044A priority patent/EP1431410B1/de
Application filed by Daido Steel Co Ltd, Tohoku Tokushuko KK, Tohoku Steel Co Ltd, Tohoku Techno Arch Co Ltd, Japan Research Industries and Industrial Technology Association (JRIA) filed Critical Daido Steel Co Ltd
Priority to EP04004046A priority patent/EP1431412B1/de
Publication of EP1085105A2 publication Critical patent/EP1085105A2/de
Publication of EP1085105A3 publication Critical patent/EP1085105A3/de
Publication of EP1085105B1 publication Critical patent/EP1085105B1/de
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
    • C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
    • C22C19/057—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being less 10%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
    • 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
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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
    • 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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • 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
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur

Definitions

  • a free cutting alloy excellent in machinability is, in a case, selected for improvement of productivity.
  • free cutting alloy containing an element improving machinability such as S, Pb, Se or Bi (hereinafter referred to as machinability-improving element) is widely used.
  • machinability-improving element an element improving machinability such as S, Pb, Se or Bi
  • a free cutting alloy constituted as stainless steel of the present invention is to be more detailed, ferrite containing stainless steel (hereinafter referred to as a first selection invention), wherein a composition of the free cutting alloy of the present invention is as follows:
  • the free cutting alloy contains: 2 mass % or lower, including zero, Ni; 12 to 35 mass % Cr; and 0.005 to 0.4 mass % C.
  • C is an important element forming a compound improving machinability. When a content thereof is lower than 0.005 mass %, however, an effect exerting sufficient machinability can not be imparted to the alloy, while when in excess of 0.4 mass %, much of a single carbide not effective for improving machinability is formed.
  • Addition of C is preferably set in the range of 0.01 to 0.1 mass %, wherein it is preferable that addition of C is adjusted so properly that the effect of imparting machinability on the alloy is optimized depending on an amount of a constituting element of a compound improving machinability such as a (Ti,Zr) based compound.
  • a P content is preferably set as low as possible and to 0.05 mass % or lower, including zero. Although the P content is more desirably set to 0.03 mass % or lower, including zero, reduction in content more than necessary has a chance to be reflected on increased production cost.
  • Te, Bi and Pb can further improve machinability, the elements may add if necessary.
  • the lower limits thereof at which the respective effects are exerted to clearness are as follows: 0.005 mass % Te; 0.01 mass % Bi and 0.01 mass % Pb, respectively.
  • the upper limits are set as follows: 0.1 mass % Te; 0.2 mass % Bi; and 0.3 mass % Pb.
  • Evaluation of cold workability was performed by measuring a threshold compressive stain in a compression test on specimens Nos. 1 to 5 and 13.
  • Test pieces for compression each had the shape of a cylinder of 15 mm in diameter and 22.5 mm in height and each piece was compressed by a 600 t oil hydraulic press to obtain a threshold compressive strain, wherein the threshold compressive strain is defined as In (H0/H) or a natural logarithm of H0/H, H0 being an initial height of the test piece and H being a threshold height which is a maximum height at which no cracking has occurred.
  • First selection inventive alloys of the specimens Nos. 1 to 5 were confirmed to have high threshold compressive ratios almost equal to comparative steel specimen No. 15 and higher than comparative steel specimen No. 16 by about 20 %, and have a good cold workability as well.
  • Evaluation of corrosion resistivity was performed by a salt spray test. Test pieces each were prepared so to have the shape of a cylinder of 10 mm in diameter and 50 mm in height. The entire surface of each test piece was polished with No. 400 emery paper and cleaned. A test piece was exposed to a fog atmosphere of 5 mass % NaCl aqueous solution at 35°C for 96 hr. Final evaluation was visually performed with the naked eye. As a result, the inventive steel of the present invention was confirmed to maintain good corrosion resistivity. The results are shown in Table 2.

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)
  • Soft Magnetic Materials (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Powder Metallurgy (AREA)

Claims (4)

  1. Automatenlegierung, welche als Ferrit-haltiger Edelstahl ausgebildet ist, enthaltend:
    2 Massen-% oder weniger, einschließlich null, Ni; 12 bis 35 Massen-% Cr; und 0,005 bis 0,4 Massen-% C;
    ein oder mehrere aus Ti und Zr, wobei WTi + 0,52 WZr = 0,03 bis 3,5 Massen-%, worin WTi und WZr die jeweiligen Anteile von Ti und Zr in Massen-% angeben, erfüllt ist;
    und ein oder mehrere aus S und Se in den jeweiligen Bereichen von 0,01 bis 1 Massen-% für S und 0,01 bis 0,8 Massen-% für Se und
    eine (Ti, Zr)-basierte Verbindung, welche ein oder mehrere von Ti und Zr als eine Metall-Element-Komponente enthält,
    und worin C ein unabdingbares Element als Bindungskomponente mit der Metall-Element-Komponente darstellt, und wobei ein oder mehrere von S, Se und Te in einer Matrix-Metallphase dispergiert sind; wobei wahlweise weiterhin enthalten sind:
    2 Massen-% oder weniger, einschließlich null, Si; 2 Massen-% oder weniger, einschließlich null, Mn; 2 Massen-% oder weniger, einschließlich null, Cu; 2 Massen-% oder weniger, einschließlich null, Co;
    ein oder mehrere von Mo und W in den jeweiligen Bereichen von 0,1 bis 4 Massen-% für Mo und 0,1 bis 3 Massen-% für W;
    0,05 Massen-% oder weniger, einschließlich null, P; 0,03 Massen-% oder weniger, einschließlich null, O; 0,05 Massen-% oder weniger, einschließlich null, N;
    ein oder mehrere aus Te, Bi und Pb in den jeweiligen Bereichen von 0,005 bis 0,1 Massen-% für Te; 0,01 bis 0,2 Massen-% für Bi; und 0,01 bis 0,3 Massen-% für Pb;
    ein oder mehrere, ausgewählt aus der Gruppe, bestehend aus Ca, Mg, B und REM (ein oder mehrere der als Gruppe 3A in dem Periodensystem der Elemente klassifizierten Metallelemente) in dem Bereich von 0,0005 bis 0,01 Massen-% für ein Element oder als Gesamtgehalt von mehr als einem Element in Kombination;
    ein oder mehrere, ausgewählt aus der Gruppe, bestehend aus Nb, V, Ta und Hf in dem jeweiligen Bereich von 0,01 bis 0,5 Massen-%, wobei der Rest Fe und unvermeidbare Verunreinigungen sind.
  2. Automatenlegierung nach Anspruch 1, worin WS/(WTi+0,52 WZr) 0,45 oder weniger beträgt, worin WS, WTi und WZr jeweils einen S-Gehalt, einen Ti-Gehalt und einen Zr-Gehalt bedeuten.
  3. Automatenlegierung nach einem der Ansprüche 1 bis 2, wobei der Wso-Wert, welcher den freigesetzten S-Gehalt darstellt, geringer als 0,035 Massen-% ist, sofern der folgende Test durchgeführt wird:
    ein Legierungsteststück der Automatenlegierung wird derartig hergestellt, dass es die Form eines rechteckigen Prismas der Größe von 15 mm in der Länge, 25 mm in der Breite und 3 mm in der Dicke aufweist, wobei die Gesamtoberfläche mit einem Schmirgelpapier der Nr. 400 poliert wurde;
    eine Silberfolie der Größe von 10 mm in der Länge, 5 mm in der Breite und 0,1 mm in der Dicke mit einer Reinheit von 99,9% oder mehr als S-Getter;
    0,5 cm3 reines Wasser werden in ein Gefäß mit einem Innenvolumen von 250 cm3 zusammen mit dem Teststück versiegelt;
    die Temperatur in dem Gefäß wird auf 85°C erhöht, und die Temperatur wird anschließend 20 Stunden lang dort gehalten;
    und anschließend wird der S-Gehalt in Massenprozent in der Silberfolie analysiert, wobei der erhaltene S-Gehalt als der Wso definiert ist.
  4. Automatenlegierung nach einem der Ansprüche 1 bis 3, worin die Teilchengröße der (Ti, Zr)-basierten Verbindung, wie sie in der Struktur eines polierten Abschnitts in der Legierung beobachtet wird, in dem Bereich von durchschnittlich 0,1 bis 30 µm liegt und wobei weiterhin ein Flächenverhältnis der Verbindung in der Struktur in dem Bereich von 1 bis 20% liegt.
EP20000118990 1999-09-03 2000-09-01 Automatenlegierung Expired - Lifetime EP1085105B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP04004046A EP1431412B1 (de) 1999-09-03 2000-09-01 Automatenlegierung
EP04004045A EP1431411B1 (de) 1999-09-03 2000-09-01 Automatenlegierung
EP04004044A EP1431410B1 (de) 1999-09-03 2000-09-01 Automatenlegierung
EP04004043A EP1431409B1 (de) 1999-09-03 2000-09-01 Automatenlegierung

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP25090299 1999-09-03
JP25090299 1999-09-03
JP2000070257 2000-03-14
JP2000070257A JP3425114B2 (ja) 2000-03-14 2000-03-14 Ｐｂフリー型フェライト系快削ステンレス鋼
JP2000221433A JP3425124B2 (ja) 2000-07-21 2000-07-21 フェライト系快削ステンレス鋼
JP2000221433 2000-07-21
JP2000251626 2000-08-22
JP2000251626A JP3425129B2 (ja) 1999-09-03 2000-08-22 快削合金材料
JP2000251602 2000-08-22
JP2000251602A JP3425128B2 (ja) 2000-08-22 2000-08-22 快削合金材料

Related Child Applications (4)

Application Number Title Priority Date Filing Date
EP04004046A Division EP1431412B1 (de) 1999-09-03 2000-09-01 Automatenlegierung
EP04004043A Division EP1431409B1 (de) 1999-09-03 2000-09-01 Automatenlegierung
EP04004044A Division EP1431410B1 (de) 1999-09-03 2000-09-01 Automatenlegierung
EP04004045A Division EP1431411B1 (de) 1999-09-03 2000-09-01 Automatenlegierung

Publications (3)

Publication Number Publication Date
EP1085105A2 EP1085105A2 (de) 2001-03-21
EP1085105A3 EP1085105A3 (de) 2001-05-16
EP1085105B1 true EP1085105B1 (de) 2006-06-28

Family

ID=27530219

Family Applications (5)

Application Number Title Priority Date Filing Date
EP04004043A Expired - Lifetime EP1431409B1 (de) 1999-09-03 2000-09-01 Automatenlegierung
EP20000118990 Expired - Lifetime EP1085105B1 (de) 1999-09-03 2000-09-01 Automatenlegierung
EP04004045A Expired - Lifetime EP1431411B1 (de) 1999-09-03 2000-09-01 Automatenlegierung
EP04004044A Expired - Lifetime EP1431410B1 (de) 1999-09-03 2000-09-01 Automatenlegierung
EP04004046A Expired - Lifetime EP1431412B1 (de) 1999-09-03 2000-09-01 Automatenlegierung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP04004043A Expired - Lifetime EP1431409B1 (de) 1999-09-03 2000-09-01 Automatenlegierung

Family Applications After (3)

Application Number Title Priority Date Filing Date
EP04004045A Expired - Lifetime EP1431411B1 (de) 1999-09-03 2000-09-01 Automatenlegierung
EP04004044A Expired - Lifetime EP1431410B1 (de) 1999-09-03 2000-09-01 Automatenlegierung
EP04004046A Expired - Lifetime EP1431412B1 (de) 1999-09-03 2000-09-01 Automatenlegierung

Country Status (2)

Country Link
EP (5) EP1431409B1 (de)
DE (5) DE60029364T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003049240A (ja) * 2001-06-01 2003-02-21 Daido Steel Co Ltd 快削鋼
JP2003049241A (ja) * 2001-06-01 2003-02-21 Daido Steel Co Ltd 快削鋼
JP4895434B2 (ja) 2001-06-04 2012-03-14 清仁 石田 快削性Ｎｉ基耐熱合金
EP1378578B1 (de) * 2002-06-05 2007-11-07 Kiyohito Ishida Hochtemperaturfeste Nickelbasislegierung mit guter Zerspannbarkeit
RU2485200C1 (ru) * 2012-01-30 2013-06-20 Открытое акционерное общество "Тольяттиазот" Жаропрочный хромоникелевый сплав с аустенитной структурой
CN102723158B (zh) * 2012-07-06 2015-12-02 白皞 含稀土的高磁导率Ni-Fe软磁合金及其制备方法和用途
DE102013214464A1 (de) * 2013-07-24 2015-01-29 Johannes Eyl Verfahren zum Herstellen einer chromhaltigen Legierung und chromhaltige Legierung
RU2551328C1 (ru) * 2014-03-12 2015-05-20 Павел Сергеевич Кучин Литейный сплав на основе железа
RU2586949C1 (ru) * 2015-06-08 2016-06-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Уральский государственный университет" (национальный исследовательский университет) (ФГБОУ ВПО "ЮУрГУ" (НИУ)) Мартенситно-ферритная коррозионно-стойкая хромоникелевая сталь с улучшенной обрабатываемостью резанием
RU2600467C1 (ru) * 2015-06-25 2016-10-20 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") Высокопрочная бериллийсодержащая сталь
CN105033501B (zh) * 2015-08-03 2017-10-27 合肥通用机械研究院 一种乙烯裂解炉管用微合金化35Cr45NiNb焊丝
CN110438510B (zh) * 2018-05-02 2021-07-06 温州酷乐餐桌用品有限公司 一种减少不锈钢餐刀中重金属含量处理方法
CN109321806A (zh) * 2018-10-16 2019-02-12 李访 一种秸秆颗粒机秆体粉碎头及其制备方法
CN110819918A (zh) * 2019-11-12 2020-02-21 段劲松 一种具有高耐磨耐蚀性的球磨机用耐磨钢球

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE400314B (sv) * 1974-10-18 1978-03-20 Sandvik Ab Rostfritt automatstal
JPS60155653A (ja) * 1984-01-25 1985-08-15 Hitachi Ltd 鉄基超合金の製造方法
JPS63125639A (ja) * 1985-04-16 1988-05-28 Aichi Steel Works Ltd 軟磁性ステンレス鋼
JPH0765144B2 (ja) * 1986-10-07 1995-07-12 大同特殊鋼株式会社 冷間鍛造用ステンレス鋼
JP2734035B2 (ja) * 1988-12-23 1998-03-30 大同特殊鋼株式会社 冷間鍛造性に優れたステンレス鋼
EP0767247A4 (de) * 1995-02-23 1999-11-24 Nippon Steel Corp Kaltgewalztes stahlblech und feuerversinkter galvanisiertes stahlblech mit hervorragender gleichmässiger bearbeitbarkeit, und verfahren zur herstellung der bleche
JP3601749B2 (ja) * 1996-10-24 2004-12-15 大同特殊鋼株式会社 高強度、快削フェライト系ステンレス鋼
CA2243123C (en) * 1996-11-25 2002-01-29 Sumitomo Metal Industries, Ltd. Steel products excellent in machinability and machined steel parts
JP3777756B2 (ja) * 1997-11-12 2006-05-24 大同特殊鋼株式会社 フェライト系快削ステンレス鋼で製造した電子機器部品
JPH11229032A (ja) * 1998-02-13 1999-08-24 Sumitomo Metal Ind Ltd 軟窒化用鋼材の製造方法及びその鋼材を用いた軟窒化部品
JP3890724B2 (ja) * 1998-02-19 2007-03-07 住友金属工業株式会社 被削性に優れたフェライト・パーライト型非調質鋼材
JP3489434B2 (ja) * 1998-04-10 2004-01-19 住友金属工業株式会社 高強度快削非調質鋼材

Also Published As

Publication number Publication date
EP1085105A2 (de) 2001-03-21
DE60029261D1 (de) 2006-08-17
EP1431410A1 (de) 2004-06-23
DE60029063D1 (de) 2006-08-10
EP1431411B1 (de) 2006-07-05
DE60029364T2 (de) 2007-08-09
EP1431411A1 (de) 2004-06-23
EP1431412B1 (de) 2006-08-16
EP1431409A1 (de) 2004-06-23
DE60029260T2 (de) 2007-08-30
DE60029063T2 (de) 2007-06-28
EP1431409B1 (de) 2006-07-05
DE60029260D1 (de) 2006-08-17
DE60029364D1 (de) 2006-08-24
DE60029261T2 (de) 2007-02-01
DE60030175D1 (de) 2006-09-28
EP1431412A1 (de) 2004-06-23
DE60030175T2 (de) 2007-08-30
EP1431410B1 (de) 2006-07-12
EP1085105A3 (de) 2001-05-16

Similar Documents

Publication Publication Date Title
EP1085105B1 (de) Automatenlegierung
US6866725B2 (en) Steel pipe excellent in formability and method of producing the same
EP3553195B1 (de) Hoch mn-haltiges stahlblech und verfahren zur herstellung davon
JP2009091655A (ja) フェライト系快削ステンレス鋼
KR101479826B1 (ko) 용접부의 특성이 우수한 마르텐사이트 스테인리스 강 및 마르텐사이트 스테인리스 강재
EP2492366A1 (de) Warmarbeitsstahl mit herausragender Härte und Wärmeleitfähigkeit
JP2002180166A (ja) 高延性で板面内材質異方性の小さいチタン板およびその製造方法
GB2075549A (en) Ferritic stainless steel having good corrosion resistance
US20140178243A1 (en) Hot work tool steel with outstanding toughness and thermal conductivity
KR102560819B1 (ko) 우수한 스케일 접착성을 가진 고강도 열연 강 및 이의 제조 방법
IE43069B1 (en) Free machining steel
US5190722A (en) High cold-forging electromagnetic stainless steel
JP2009046732A (ja) オーステナイト系快削ステンレス鋼
JP2000034538A (ja) 旋削加工性に優れた機械構造用鋼
JP3425124B2 (ja) フェライト系快削ステンレス鋼
KR920006583B1 (ko) 강자성 Ni-Fe계 합금 및 이 합금의 우수한 표면성상을 가진 합금 물품의 제조방법
JP2003221654A (ja) 快削ステンレス鋼
JP3442705B2 (ja) 快削鋼
JP3425128B2 (ja) 快削合金材料
JP3425114B2 (ja) Ｐｂフリー型フェライト系快削ステンレス鋼
JP3425129B2 (ja) 快削合金材料
US7381369B2 (en) Free cutting alloy
US20030170138A1 (en) Free cutting alloy
Laitinen et al. Corrosion fatigue resistance of powder metallurgy and forged duplex stainless steels
JPH08225893A (ja) 中性子遮蔽用オーステナイトステンレス鋼

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20010625

AKX Designation fees paid

Free format text: DE FR GB SE

17Q First examination report despatched

Effective date: 20030708

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DAIDO TOKUSHUKO KABUSHIKI KAISHA

Owner name: TOHOKU TECHNOARCH CO., LTD.

Owner name: TOHOKU TOKUSHUKO KABUSHIKI KAISHA

Owner name: OIKAWA, KATSUNARI

Owner name: JAPAN INDUSTRIAL TECHNOLOGY ASSOCIATION

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DAIDO TOKUSHUKO KABUSHIKI KAISHA

Owner name: JAPAN INDUSTRIAL TECHNOLOGY ASSOCIATION

Owner name: TOHOKU TOKUSHUKO KABUSHIKI KAISHA

Owner name: TOHOKU TECHNOARCH CO., LTD.

Owner name: ISHIDA, KIYOHITO

Owner name: OIKAWA, KATSUNARI

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60029063

Country of ref document: DE

Date of ref document: 20060810

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070329

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20090826

Year of fee payment: 10

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100901

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20140827

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20140911

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20140906

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60029063

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150902

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150930