AT397968B - CORROSION-RESISTANT ALLOY FOR USE AS A MATERIAL FOR PARTS IN CONTACT WITH LIFE - Google Patents
CORROSION-RESISTANT ALLOY FOR USE AS A MATERIAL FOR PARTS IN CONTACT WITH LIFE Download PDFInfo
- Publication number
- AT397968B AT397968B AT139392A AT139392A AT397968B AT 397968 B AT397968 B AT 397968B AT 139392 A AT139392 A AT 139392A AT 139392 A AT139392 A AT 139392A AT 397968 B AT397968 B AT 397968B
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- AT
- Austria
- Prior art keywords
- alloy
- manganese
- cold
- chromium
- nitrogen
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims description 24
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 28
- 229910045601 alloy Inorganic materials 0.000 claims description 22
- 239000000956 alloy Substances 0.000 claims description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 229910052759 nickel Inorganic materials 0.000 claims description 14
- 206010020751 Hypersensitivity Diseases 0.000 claims description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052804 chromium Inorganic materials 0.000 claims description 9
- 239000011651 chromium Substances 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 7
- 230000007797 corrosion Effects 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 239000011572 manganese Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 230000007815 allergy Effects 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 208000026935 allergic disease Diseases 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 239000010955 niobium Substances 0.000 claims description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims description 2
- 230000002411 adverse Effects 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims 2
- 238000005452 bending Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000029142 excretion Effects 0.000 claims 1
- 238000002474 experimental method Methods 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 claims 1
- 229910000734 martensite Inorganic materials 0.000 claims 1
- 150000001247 metal acetylides Chemical class 0.000 claims 1
- 239000002244 precipitate Substances 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 208000017520 skin disease Diseases 0.000 claims 1
- 238000005482 strain hardening Methods 0.000 claims 1
- 239000011573 trace mineral Substances 0.000 claims 1
- 235000013619 trace mineral Nutrition 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 229910000669 Chrome steel Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 208000030961 allergic reaction Diseases 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 201000005299 metal allergy Diseases 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
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
- C22C38/18—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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Adornments (AREA)
Description
AT 397 968 BAT 397 968 B
Die Erfindung betrifft eine korrosionsbeständige Legierung zur Verwendung als Werkstoff für strukturierfähige Teile, die zumindest teilweise in Berührungskontakt mit der Haut von Lebewesen, insbesondere von Menschen, stehen, enthaltend im wesentlichen die Bestandteile Mangan. Chrom und Stickstoff, Rest Eisen. Weiters befaßt sich die Erfindung mit der Verwendung einer korrosionsbeständigen Legierung als Werkstoff 5 für strukturierfähige Teile, die zumindest teilweise in Berührungskontakt mit der Haut von Lebewesen, insbesondere von Menschen, stehen.The invention relates to a corrosion-resistant alloy for use as a material for structurable parts which are at least partially in contact with the skin of living beings, in particular humans, containing essentially the components manganese. Chromium and nitrogen, the rest iron. Furthermore, the invention is concerned with the use of a corrosion-resistant alloy as material 5 for structurable parts which are at least partially in contact with the skin of living beings, in particular humans.
Die Haut von Lebewesen kann bei Reizung durch bestimmte Stoffe oder Strahlen überempfindlich reagieren. Derartige Überreaktionen nennt man Allergien, wobei auch Lebewesen derselben Gattung auf gleiche Reize keine oder überempfindliche, gegebenenfalls unterschiedliche Intensität aufweisende Reaktio-io nen zeigen können. Insbesondere die Haut des Menschen betreffend sind viele Stoffe bekannt, welche gegebenenfalls Allergien bewirken können.The skin of living things can be hypersensitive when irritated by certain substances or rays. Such overreactions are called allergies, and even living beings of the same genus can show no or hypersensitive, possibly different intensity reactions to the same stimuli. Many substances are known to affect the skin of humans in particular, which may cause allergies.
Unter den durch eine Berührung mit Metallen ausgelösten sogenannten Metallallergien ist die Nickelallergie besonders häufig gegeben. Dabei wurde festgestellt, daß nicht nur reines Nickel sondern auch Legierungen mit einer Nickelkonzentration von einigen Prozenten schon eine allergische Reaktion auslösen 75 können. Lebewesen, insbesondere Menschen, kommen im täglichen Leben zwangsläufig mit metallischen Werkstoffen, insbesondere rostfreien Stählen und Legierungen, welche Nickel enthalten können, in Berührung. Viele Gegenstände des täglichen Gebrauches wie Armbanduhren, Uhrbänder, Brillengestelle und dgl. sowie Teile von bzw. an Kleidungsstücken, z.B. Verschlußeinrichtungen, Hosennieten und auch Teile an medizinischen, am Körper zu tragenden, gegebenenfalls prothetischen Stütz- oder Haltevorrichtungen, 20 werden aus Gründen der erforderlichen Materialfestigkeit und der bevorzugten Materiaieigenschaften aus metallischen Werkstoffen gefertigt.Among the so-called metal allergies triggered by contact with metals, nickel allergy is particularly common. It was found that not only pure nickel, but also alloys with a nickel concentration of a few percent can trigger an allergic reaction 75. Living beings, especially humans, inevitably come into contact with metallic materials, especially stainless steels and alloys, which may contain nickel, in daily life. Many everyday items such as wristwatches, watch straps, eyeglass frames and the like, as well as parts of or on items of clothing, e.g. Closure devices, trousers rivets and also parts on medical, possibly prosthetic support or holding devices 20 to be worn on the body are made of metallic materials for reasons of the required material strength and the preferred material properties.
Um eine Rostbeständigkeit der Teile zu erreichen, können diese z.B. galvanisch, gegebenenfalls mit Chrom, beschichtet werden. Die Nachteile derartiger Beschichtungen sind ein hoher Aufwand bei der Herstellung und ein durch Risse in der Schicht ausgelöstes Abblättern derselben. Soll mit Sicherheit ein 25 Auslösen einer Nickelallergie vermieden werden, so dürfen die klassischen rostbeständigen Stähle mit ca. 8 bis 12 Gew.-% Nickel, wie z.B. DIN Werkstoff Nr. 1.4401 und Nr. 1.4404, für zumindest teilweise in Hautkontakt stehende Teile nicht verwendet werden. Es wurde schon versucht, nickelfreie, rostbeständige Chromstähle wie DIN Werkstoff Nr. 1.4001 und Nr. 1.4016 einzusetzen. Nachteilig bei derartigen Werkstoffen ist, daß an den mehr als 12 Gew.-% Chrom zur Ausbildung einer Passivierungsschicht an der 30 Oberfläche enthaltenden Teilen in Anwesenheit von Schweiß oder Salzlösungen Risse durch durch Zugspannungen ausgelöste örtliche Korrosion, der sog. Spannungsrißkorrosion, gebildet werden können und/oder ein großer fertigungstechnischer Aufwand erforderlich ist. Bei obigen Stählen ist auch ein z.B. chemisches Strukturieren der Oberfläche der Teile mit einer gewünschten Gleichartigkeit zur Erzielung eines besonderen Oberflächenaussehens wie dies für Uhrbänder, Uhrböden, Brillengestelle und dgl. oft 35 vorgesehen ist, meist nicht möglich. Weiters sind rostfreie Chromstähle magnetisierbar, was deren Einsatz für Gehäuse von durch Magnetfelder in ihrer Funktion beeinflußbaren Uhren ausschließt. Es ist bekannt, daß Titan keinerlei allergische Reaktionen auslöst, also besonders gut hautverträglich für Lebewesen ist. Der hohe Preis und eine oft aufwendige Hestellung von Teilen aus Titan stellen jedoch wesentliche Nachteile dar. 40 Die Erfindung setzt sich zum Ziel, die Nachteile der bekannten Materialien zu beseitigen und eine korrosionsbeständige Legierung zur Verwendung als Werkstoff für strukturierfähige Teile, die zumindest teilweise in Berührungskontakt mit der Haut von Lebewesen, insbesondere von Menschen, stehen, keine Allergien bewirkt und amagnetische Eigenschaften aufweist, zu erstellen.To achieve rust resistance of the parts, they can e.g. electroplated, optionally with chrome. The disadvantages of such coatings are high manufacturing costs and peeling caused by cracks in the layer. If a triggering of a nickel allergy is to be avoided with certainty, the classic rust-resistant steels with approx. 8 to 12% by weight nickel, e.g. DIN material No. 1.4401 and No. 1.4404, are not used for parts that are at least partially in contact with the skin. Attempts have already been made to use nickel-free, rust-resistant chrome steels such as DIN material No. 1.4001 and No. 1.4016. A disadvantage of such materials is that cracks can be formed on the more than 12% by weight chromium to form a passivation layer on the parts containing the surface in the presence of sweat or salt solutions due to local corrosion caused by tensile stress, the so-called stress corrosion cracking, and / or a large manufacturing effort is required. In the above steels, e.g. Chemical structuring of the surface of the parts with a desired uniformity in order to achieve a special surface appearance, as is often provided for watch straps, watch floors, glasses frames and the like, is usually not possible. Furthermore, stainless chrome steels can be magnetized, which excludes their use for housings from clocks that can be influenced in their function by magnetic fields. It is known that titanium does not cause any allergic reactions, so it is particularly well tolerated by living things. However, the high price and the often complex manufacture of titanium parts represent significant disadvantages. 40 The invention aims to eliminate the disadvantages of the known materials and a corrosion-resistant alloy for use as a material for structurable parts that are at least partially in contact stand with the skin of living beings, especially humans, without causing allergies and with non-magnetic properties.
Dieses Ziel wird bei einer Legierung der eingangs genannten Art dadurch erreicht,daß diese Legierung 45 in Gew.-%This goal is achieved with an alloy of the type mentioned at the outset in that this alloy 45 in% by weight
Kohlenstoff max. 0,10 Silizium max. 1,0 Mangan 11,0 bis 25,0 Chrom 10,0 bis 20,0 Molybdän bis 1,6 Stickstoff 0,05 bis 0,55 55 gegebenenfalls ein oder mehrere der Elemente Vanadin, Niob, Tantal, Wolfram, Aluminium, Titan, Kupfer, Bor in einer Konzentration von höchstens 2,0 Gew.-%, Rest Eisen und herstellungsbedingte Verunreinigungen mit der Maßgabe aufweist daß deren Nickelgehalt unter 0,5 Gew.-% liegt und der Werkstoff nach einer bei einer Temperatur von 1010 *C bis 1080 *C durchgeführten Lösungsglühbehandlung abgeschreckt und 2Carbon max. 0.10 silicon max. 1.0 manganese 11.0 to 25.0 chromium 10.0 to 20.0 molybdenum to 1.6 nitrogen 0.05 to 0.55 55 optionally one or more of the elements vanadium, niobium, tantalum, tungsten, aluminum, titanium , Copper, boron in a concentration of at most 2.0% by weight, remainder iron and production-related impurities with the proviso that their nickel content is less than 0.5% by weight and the material after a temperature of 1010 ° C. quenching solution annealing carried out up to 1080 * C and 2
Claims (9)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT139392A AT397968B (en) | 1992-07-07 | 1992-07-07 | CORROSION-RESISTANT ALLOY FOR USE AS A MATERIAL FOR PARTS IN CONTACT WITH LIFE |
| CH1862/93A CH684979B5 (en) | 1992-07-07 | 1993-06-21 | Corrosion-resistant alloy for use as a material for in physical contact with stationary parts creatures. |
| EP93890161A EP0640695B1 (en) | 1992-07-07 | 1993-08-23 | Corrosion resistant alloy, useful as material for parts in contact with living beings |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT139392A AT397968B (en) | 1992-07-07 | 1992-07-07 | CORROSION-RESISTANT ALLOY FOR USE AS A MATERIAL FOR PARTS IN CONTACT WITH LIFE |
| EP93890161A EP0640695B1 (en) | 1992-07-07 | 1993-08-23 | Corrosion resistant alloy, useful as material for parts in contact with living beings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ATA139392A ATA139392A (en) | 1993-12-15 |
| AT397968B true AT397968B (en) | 1994-08-25 |
Family
ID=25595730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT139392A AT397968B (en) | 1992-07-07 | 1992-07-07 | CORROSION-RESISTANT ALLOY FOR USE AS A MATERIAL FOR PARTS IN CONTACT WITH LIFE |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0640695B1 (en) |
| AT (1) | AT397968B (en) |
| CH (1) | CH684979B5 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0694622A1 (en) * | 1994-06-29 | 1996-01-31 | BÖHLER YBBSTALWERKE Ges.m.b.H. | Corrosion resistant alloy and method for making corrosion resistant cutting tools |
| DE102009003598A1 (en) * | 2009-03-10 | 2010-09-16 | Max-Planck-Institut Für Eisenforschung GmbH | Corrosion-resistant austenitic steel |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19607828C2 (en) * | 1995-04-15 | 2003-06-18 | Vsg En Und Schmiedetechnik Gmb | Process for producing an austenitic Cv-Mn steel |
| DE19542949A1 (en) * | 1995-11-17 | 1997-07-17 | Hilti Ag | Bolt for driving into hard materials |
| DE19758613C2 (en) * | 1997-04-22 | 2000-12-07 | Krupp Vdm Gmbh | High-strength and corrosion-resistant iron-manganese-chrome alloy |
| DE59800246D1 (en) * | 1997-04-29 | 2000-09-28 | Boehler Edelstahl Gmbh & Co Kg | Use of a biocompatible skin-compatible alloy |
| EP0918099A1 (en) * | 1997-10-27 | 1999-05-26 | Stahlwerk Ergste Westig GmbH | Chrome-manganese steel alloy |
| 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 |
| CH694401A5 (en) | 1999-05-26 | 2004-12-31 | Basf Ag | Low-nickel, low-molybdenum, biocompatible, non-allergenic, corrosion-resistant austenitic steel. |
| JP3798317B2 (en) | 1999-06-24 | 2006-07-19 | ビーエーエスエフ アクチェンゲゼルシャフト | Low nickel austenitic steel |
| GB9922757D0 (en) * | 1999-09-27 | 1999-11-24 | Heymark Metals Ltd | Improved steel composition |
| EP2617839A1 (en) | 2012-01-18 | 2013-07-24 | MeKo Laserstrahl-Materialbearbeitungen e.K. | Nickel-free iron alloy for stents |
| CN102828122B (en) * | 2012-09-13 | 2015-01-07 | 浙江腾龙精线有限公司 | Method for manufacturing stainless steel wire for spectacle frame |
| EP3176653B1 (en) * | 2015-12-03 | 2018-09-26 | Cartier International AG | Clock component having a magnetic shielding function and comprising a steel alloy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0065631A1 (en) * | 1981-03-20 | 1982-12-01 | Kabushiki Kaisha Toshiba | Corrosion-resistant non-magnetic steel and retaining ring for a generator made of it |
| EP0277065A2 (en) * | 1987-01-23 | 1988-08-03 | S.M.F. International | Non-magnetic manganese-chromium steel and tubular element of a drilling column made from this steel |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB506905A (en) * | 1938-01-22 | 1939-06-06 | Krupp Ag | Improvements in the manufacture of parts of chemical apparatus and other articles from chromium-manganese steel alloys |
| FR1204510A (en) * | 1957-04-05 | 1960-01-26 | Crucible Steel Co America | Austenitic steels substantially free of nickel |
| FR75729E (en) * | 1959-05-15 | 1961-08-04 | Crucible Steel Co America | Austenitic steels substantially free of nickel |
| BE754614A (en) * | 1969-12-27 | 1971-01-18 | Nisshin Steel Co Ltd | AUSTENITIC STAINLESS STEELS |
| BG29797A1 (en) * | 1979-06-27 | 1981-02-16 | Rashev | Austenite corrosion resistant steel |
| US4946644A (en) * | 1989-03-03 | 1990-08-07 | Baltimore Specialty Steels Corporation | Austenitic stainless steel with improved castability |
| DE4023462C1 (en) * | 1989-10-12 | 1991-07-04 | Vereinigte Schmiedewerke Gmbh, 4630 Bochum, De | |
| DE9215141U1 (en) * | 1992-11-06 | 1993-01-07 | Borchmann, Michael, Dr.med.dent., 4518 Bad Laer | Material for use in the jewellery industry for all types of jewellery |
-
1992
- 1992-07-07 AT AT139392A patent/AT397968B/en not_active IP Right Cessation
-
1993
- 1993-06-21 CH CH1862/93A patent/CH684979B5/en not_active IP Right Cessation
- 1993-08-23 EP EP93890161A patent/EP0640695B1/en not_active Revoked
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0065631A1 (en) * | 1981-03-20 | 1982-12-01 | Kabushiki Kaisha Toshiba | Corrosion-resistant non-magnetic steel and retaining ring for a generator made of it |
| EP0277065A2 (en) * | 1987-01-23 | 1988-08-03 | S.M.F. International | Non-magnetic manganese-chromium steel and tubular element of a drilling column made from this steel |
Non-Patent Citations (1)
| Title |
|---|
| CHEMICAL ABSTRACTS 100:116 071M * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0694622A1 (en) * | 1994-06-29 | 1996-01-31 | BÖHLER YBBSTALWERKE Ges.m.b.H. | Corrosion resistant alloy and method for making corrosion resistant cutting tools |
| DE102009003598A1 (en) * | 2009-03-10 | 2010-09-16 | Max-Planck-Institut Für Eisenforschung GmbH | Corrosion-resistant austenitic steel |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0640695A1 (en) | 1995-03-01 |
| EP0640695B1 (en) | 1996-06-12 |
| ATA139392A (en) | 1993-12-15 |
| CH684979GA3 (en) | 1995-02-28 |
| CH684979B5 (en) | 1995-08-31 |
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