EP0649913B1 - Acier inoxydable austénitique à hautes caractéristiques ayant une grande stabilité structurale et utilisations - Google Patents
Acier inoxydable austénitique à hautes caractéristiques ayant une grande stabilité structurale et utilisations Download PDFInfo
- Publication number
- EP0649913B1 EP0649913B1 EP94402202A EP94402202A EP0649913B1 EP 0649913 B1 EP0649913 B1 EP 0649913B1 EP 94402202 A EP94402202 A EP 94402202A EP 94402202 A EP94402202 A EP 94402202A EP 0649913 B1 EP0649913 B1 EP 0649913B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel according
- stainless steel
- corrosion
- chemical composition
- manufacturing
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 33
- 239000010959 steel Substances 0.000 title claims abstract description 33
- 238000005260 corrosion Methods 0.000 claims abstract description 40
- 230000007797 corrosion Effects 0.000 claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 claims abstract description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 26
- 239000000126 substance Substances 0.000 claims abstract description 19
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 19
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 229910001220 stainless steel Inorganic materials 0.000 claims description 17
- 239000010935 stainless steel Substances 0.000 claims description 13
- 229910052804 chromium Inorganic materials 0.000 claims description 11
- 229910052759 nickel Inorganic materials 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000013256 coordination polymer Substances 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 229920001131 Pulp (paper) Polymers 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 229910000746 Structural steel Inorganic materials 0.000 claims description 2
- 238000009854 hydrometallurgy Methods 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 33
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract description 6
- 239000010937 tungsten Substances 0.000 abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 19
- 239000011651 chromium Substances 0.000 description 13
- 238000001556 precipitation Methods 0.000 description 13
- 239000011572 manganese Substances 0.000 description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 7
- 239000010955 niobium Substances 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000011733 molybdenum Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 206010070834 Sensitisation Diseases 0.000 description 3
- 240000008042 Zea mays Species 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 230000008313 sensitization Effects 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000011534 incubation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 240000002228 Cynara humilis Species 0.000 description 1
- 235000005921 Cynara humilis Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- -1 chromium carbides Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 239000003348 petrochemical agent Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- 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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
Definitions
- the present invention relates to stainless steel austenitic with high mechanical resistance, high corrosion resistance and very good structural stability.
- High austenitic stainless steels mechanical characteristics and high resistance to known corrosion also have the disadvantage of not be able to be used in the form of solid parts. In effect, when parts cool, instability of the structure causes intermetallic precipitation which very markedly deteriorate the resistance to corrosion and mechanical properties of steel.
- the purpose of the present invention is to provide high austenitic stainless steel mechanical and which simultaneously has a very large corrosion resistance in a chlorinated medium and a very good structural stability.
- the subject of the invention is an austenitic stainless steel with high mechanical characteristics, high resistance to corrosion and having great structural stability, the chemical composition of which comprises by weight: 23% ⁇ Cr ⁇ 28% 15% ⁇ Ni ⁇ 28% 0.5% ⁇ Mn ⁇ 6% 0% ⁇ Cu ⁇ 5% 0% ⁇ C ⁇ 0.06% 0% ⁇ If ⁇ 1% 0% ⁇ Nb ⁇ 0.5% 0% ⁇ V ⁇ 0.5% 0% ⁇ Al ⁇ 0.1% 3% ⁇ Mo ⁇ 8% 0.35% ⁇ N ⁇ 0.8% 1% ⁇ W ⁇ 5% the rest being made up of iron and impurities linked to the production.
- the chemical composition of the steel comprises by weight: 23% ⁇ Cr ⁇ 26% 21% ⁇ Ni ⁇ 23% 2% ⁇ Mn ⁇ 3.5% 1% ⁇ Cu ⁇ 2% 0% ⁇ C ⁇ 0.03% 0% ⁇ If ⁇ 0.4% 0% ⁇ Nb ⁇ 0.5% 0% ⁇ Al ⁇ 0.1% 4.5% ⁇ Mo ⁇ 6.5% 0.4% ⁇ N ⁇ 0.55% 2% ⁇ W ⁇ 3.5% the rest being made up of iron and impurities linked to the production.
- the chemical composition of the steel must, preferably satisfy the relationship: 113 + 16 (% Mo + 0.7% W) + 525% N> 420
- this steel can be used for the production of solid parts. He can also be used for manufacturing equipment for massive oil rigs or for manufacturing equipment for chemical plants, for pulp mills paper, pollution control facilities or for manufacture of containers for transporting products corrosive, or finally, for the manufacture of ship. This steel can also be used to make clad sheets.
- stainless steels austenitics which are alloys based on iron and high chromium and nickel content which have a structure naturally austenitic in the solid state practically at any temperature.
- the structure is not 100% austenitic near the solidification point but becomes solid as soon as the temperature lowers.
- superaustenitic the structure is 100% austenitic upon solidification.
- the inventors unexpectedly found that by simultaneously adding to these steels contents high in nitrogen: from 0.35% by weight to 0.8% by weight, and preferably from 0.4% to 0.55% and in tungsten: from 1% by weight at 5% by weight, and preferably 2% to 3.5%, we obtained at the same time high mechanical characteristics, very high resistance to corrosion in the environment chlorinated and very good structural stability, i.e. kinetics of precipitation of intermetallic phases at very slow high temperature.
- Such steels always contain a little carbon, silicon and aluminum. Carbon content must be less than 0.06% and preferably less 0.03% to avoid precipitation of carbide at grain boundaries.
- the silicon and aluminum that served as deoxidizers during processing are limited to 1% for silicon and 0.1% for aluminum.
- the corrosion rate in hydrochloric medium is 100 MDJ (mg / dm 2 / day); after hyper quenching followed by an sensitization treatment by maintaining at 800 ° C. for 15 min, the corrosion rate under the same conditions is 200 MDJ.
- the steel according to the invention is much less sensitive to thermal cycles of sensitization. It results that it is possible to produce clad sheets consisting of a layer of steel according to the invention and a layer of structural steel, the properties of which of stainless plating are comparable to the properties a massive stainless steel sheet made in the same shade.
- the steel according to the invention having a large structural stability can be used to manufacture including molded parts, forgings, rolled bars, rolled sheets, profiles, seamless tubes and welded tubes in particular when these objects are massive, that is to say when they are used in the form of thick pieces i.e. minimum thickness greater than 4 mm, especially when these are pieces thicker than 4 mm and less than 40 mm; they then present a good homogeneity of characteristics in thickness; for thicknesses greater than 40 mm, very good stability structural maintains high levels of resilience and ductility in thickness.
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)
- Laminated Bodies (AREA)
- Catalysts (AREA)
- Pens And Brushes (AREA)
- Electroplating Methods And Accessories (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Physical Vapour Deposition (AREA)
- Heat Treatment Of Articles (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9312578 | 1993-10-21 | ||
FR9312578A FR2711674B1 (fr) | 1993-10-21 | 1993-10-21 | Acier inoxydable austénitique à hautes caractéristiques ayant une grande stabilité structurale et utilisations. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0649913A1 EP0649913A1 (fr) | 1995-04-26 |
EP0649913B1 true EP0649913B1 (fr) | 2000-01-26 |
Family
ID=9452089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94402202A Expired - Lifetime EP0649913B1 (fr) | 1993-10-21 | 1994-10-03 | Acier inoxydable austénitique à hautes caractéristiques ayant une grande stabilité structurale et utilisations |
Country Status (12)
Country | Link |
---|---|
US (1) | US5494636A (fi) |
EP (1) | EP0649913B1 (fi) |
AT (1) | ATE189268T1 (fi) |
CA (1) | CA2118288C (fi) |
DE (1) | DE69422772T2 (fi) |
DK (1) | DK0649913T3 (fi) |
ES (1) | ES2141808T3 (fi) |
FI (1) | FI109032B (fi) |
FR (1) | FR2711674B1 (fi) |
GR (1) | GR3033188T3 (fi) |
NO (1) | NO302710B1 (fi) |
PT (1) | PT649913E (fi) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6354219B1 (en) | 1998-05-01 | 2002-03-12 | Owen Oil Tools, Inc. | Shaped-charge liner |
US6168755B1 (en) | 1998-05-27 | 2001-01-02 | The United States Of America As Represented By The Secretary Of Commerce | High nitrogen stainless steel |
DE19924098A1 (de) * | 1999-05-26 | 2000-12-07 | Boehringer Ingelheim Pharma | Edelstahlkanister für treibgasbetriebene Dosieraerosole |
US6739333B1 (en) * | 1999-05-26 | 2004-05-25 | Boehringer Ingelheim Pharma Kg | Stainless steel canister for propellant-driven metering aerosols |
SE527177C2 (sv) * | 2001-09-25 | 2006-01-17 | Sandvik Intellectual Property | Användning av ett austenitiskt rostfritt stål |
EP1605072B1 (en) * | 2003-03-20 | 2012-09-12 | Sumitomo Metal Industries, Ltd. | Stainless steel for high pressure hydrogen gas, vessel and equipment comprising the steel |
US20040221929A1 (en) | 2003-05-09 | 2004-11-11 | Hebda John J. | Processing of titanium-aluminum-vanadium alloys and products made thereby |
US6960820B2 (en) * | 2003-07-01 | 2005-11-01 | International Business Machines Corporation | Bipolar transistor self-alignment with raised extrinsic base extension and methods of forming same |
US7837812B2 (en) | 2004-05-21 | 2010-11-23 | Ati Properties, Inc. | Metastable beta-titanium alloys and methods of processing the same by direct aging |
SE528008C2 (sv) * | 2004-12-28 | 2006-08-01 | Outokumpu Stainless Ab | Austenitiskt rostfritt stål och stålprodukt |
US8430075B2 (en) * | 2008-12-16 | 2013-04-30 | L.E. Jones Company | Superaustenitic stainless steel and method of making and use thereof |
US10053758B2 (en) * | 2010-01-22 | 2018-08-21 | Ati Properties Llc | Production of high strength titanium |
US9255316B2 (en) | 2010-07-19 | 2016-02-09 | Ati Properties, Inc. | Processing of α+β titanium alloys |
US8499605B2 (en) | 2010-07-28 | 2013-08-06 | Ati Properties, Inc. | Hot stretch straightening of high strength α/β processed titanium |
US8613818B2 (en) | 2010-09-15 | 2013-12-24 | Ati Properties, Inc. | Processing routes for titanium and titanium alloys |
US9206497B2 (en) | 2010-09-15 | 2015-12-08 | Ati Properties, Inc. | Methods for processing titanium alloys |
US10513755B2 (en) | 2010-09-23 | 2019-12-24 | Ati Properties Llc | High strength alpha/beta titanium alloy fasteners and fastener stock |
KR20210100212A (ko) * | 2011-05-26 | 2021-08-13 | 유나이티드 파이프라인스 아시아 패시픽 피티이 리미티드 | 오스테나이트계 스테인리스강 |
US8652400B2 (en) | 2011-06-01 | 2014-02-18 | Ati Properties, Inc. | Thermo-mechanical processing of nickel-base alloys |
US9347121B2 (en) * | 2011-12-20 | 2016-05-24 | Ati Properties, Inc. | High strength, corrosion resistant austenitic alloys |
US9050647B2 (en) | 2013-03-15 | 2015-06-09 | Ati Properties, Inc. | Split-pass open-die forging for hard-to-forge, strain-path sensitive titanium-base and nickel-base alloys |
US9869003B2 (en) | 2013-02-26 | 2018-01-16 | Ati Properties Llc | Methods for processing alloys |
US9192981B2 (en) | 2013-03-11 | 2015-11-24 | Ati Properties, Inc. | Thermomechanical processing of high strength non-magnetic corrosion resistant material |
US9777361B2 (en) | 2013-03-15 | 2017-10-03 | Ati Properties Llc | Thermomechanical processing of alpha-beta titanium alloys |
US11111552B2 (en) | 2013-11-12 | 2021-09-07 | Ati Properties Llc | Methods for processing metal alloys |
US20150337419A1 (en) * | 2014-05-20 | 2015-11-26 | Crs Holdings Inc. | Austenitic Stainless Steel Alloy |
US10094003B2 (en) | 2015-01-12 | 2018-10-09 | Ati Properties Llc | Titanium alloy |
US10502252B2 (en) | 2015-11-23 | 2019-12-10 | Ati Properties Llc | Processing of alpha-beta titanium alloys |
US10669601B2 (en) | 2015-12-14 | 2020-06-02 | Swagelok Company | Highly alloyed stainless steel forgings made without solution anneal |
SE540488C2 (en) * | 2017-03-21 | 2018-09-25 | Valmet Oy | Method for hydrolysis of lignocellulosic materials |
US20190136335A1 (en) | 2017-11-07 | 2019-05-09 | Swagelok Company | Highly alloyed stainless steel forgings made without solution anneal |
CN116695028B (zh) * | 2023-05-30 | 2024-05-14 | 鞍钢股份有限公司 | 一种高强韧高耐蚀性核电奥氏体不锈钢及其制造方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04218643A (ja) * | 1990-12-18 | 1992-08-10 | Hitachi Metals Ltd | エンジンバルブ用耐熱合金 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3165400A (en) * | 1961-06-27 | 1965-01-12 | Chrysler Corp | Castable heat resisting iron alloy |
US3969109A (en) * | 1974-08-12 | 1976-07-13 | Armco Steel Corporation | Oxidation and sulfidation resistant austenitic stainless steel |
EP0342574A1 (de) * | 1988-05-17 | 1989-11-23 | Thyssen Edelstahlwerke AG | Korrosionsbeständiger austenitischer Stahl |
JP3073754B2 (ja) * | 1989-08-02 | 2000-08-07 | 日立金属株式会社 | エンジンバルブ用耐熱鋼 |
SE465373B (sv) * | 1990-01-15 | 1991-09-02 | Avesta Ab | Austenitiskt rostfritt staal |
JP2500162B2 (ja) * | 1991-11-11 | 1996-05-29 | 住友金属工業株式会社 | 耐食性に優れた高強度二相ステンレス鋼 |
IT1257695B (it) * | 1992-04-24 | 1996-02-01 | Acciaio austeno-ferritico avente alta resistenza alla corrosione ed elevato carico di snervamento allo stato solubizzato. | |
FR2705689B1 (fr) * | 1993-05-28 | 1995-08-25 | Creusot Loire | Acier inoxydable austénitique à haute résistance à la corrosion par les milieux chlorurés et sulfuriques et utilisations. |
-
1993
- 1993-10-21 FR FR9312578A patent/FR2711674B1/fr not_active Expired - Fee Related
-
1994
- 1994-10-03 DE DE69422772T patent/DE69422772T2/de not_active Expired - Lifetime
- 1994-10-03 AT AT94402202T patent/ATE189268T1/de active
- 1994-10-03 EP EP94402202A patent/EP0649913B1/fr not_active Expired - Lifetime
- 1994-10-03 DK DK94402202T patent/DK0649913T3/da active
- 1994-10-03 ES ES94402202T patent/ES2141808T3/es not_active Expired - Lifetime
- 1994-10-03 PT PT94402202T patent/PT649913E/pt unknown
- 1994-10-06 US US08/318,993 patent/US5494636A/en not_active Expired - Lifetime
- 1994-10-17 CA CA002118288A patent/CA2118288C/fr not_active Expired - Lifetime
- 1994-10-18 NO NO943942A patent/NO302710B1/no not_active IP Right Cessation
- 1994-10-19 FI FI944908A patent/FI109032B/fi not_active IP Right Cessation
-
2000
- 2000-04-12 GR GR20000400882T patent/GR3033188T3/el not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04218643A (ja) * | 1990-12-18 | 1992-08-10 | Hitachi Metals Ltd | エンジンバルブ用耐熱合金 |
Also Published As
Publication number | Publication date |
---|---|
DK0649913T3 (da) | 2000-06-19 |
EP0649913A1 (fr) | 1995-04-26 |
PT649913E (pt) | 2000-06-30 |
NO302710B1 (no) | 1998-04-14 |
NO943942L (no) | 1995-04-24 |
DE69422772D1 (de) | 2000-03-02 |
US5494636A (en) | 1996-02-27 |
FI944908A (fi) | 1995-04-22 |
NO943942D0 (no) | 1994-10-18 |
CA2118288C (fr) | 2004-10-05 |
ATE189268T1 (de) | 2000-02-15 |
FI944908A0 (fi) | 1994-10-19 |
FI109032B (fi) | 2002-05-15 |
FR2711674B1 (fr) | 1996-01-12 |
ES2141808T3 (es) | 2000-04-01 |
CA2118288A1 (fr) | 1995-04-22 |
DE69422772T2 (de) | 2000-06-08 |
FR2711674A1 (fr) | 1995-05-05 |
GR3033188T3 (en) | 2000-08-31 |
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