| Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120) |
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| 12/04/1990 | US4975129 Permanent magnet |
| 11/30/1990 | CA2017616A1 Magnetic alloy compositions and permanent magnets |
| 11/28/1990 | EP0399905A1 Stainless ferritic steel containing in particular aluminium and titanium |
| 11/28/1990 | EP0266422B1 Process for producing low core loss, thin, unidirectional silicon steel plate having excellent surface properties |
| 11/28/1990 | CN1047345A Heat treatment of corrosion resistant steels |
| 11/28/1990 | CN1010560B Rolling of base steel sheet to be surfacetreated without producing stretcher strain markings |
| 11/27/1990 | US4973415 Epoxy or silicon resin binder |
| 11/27/1990 | CA1276893C High strength weldable seamless tube of low alloy steel |
| 11/22/1990 | EP0398114A2 Process for preparation of thin grain oriented electrical steel sheet having superior iron loss and high flux density |
| 11/20/1990 | US4971637 Rare earth permanent magnet |
| 11/20/1990 | CA1276486C Method of making rare-earth element containing permanent magnets |
| 11/15/1990 | WO1990013672A1 Process for manufacturing coil-break-free hot strip and age-resistant hot-galvanized cold strip |
| 11/14/1990 | EP0397264A1 Hard magnetic material and magnet manufactured from such hard magnetic material |
| 11/13/1990 | US4969963 Soft magnetic stainless steel having good cold forgeability |
| 11/13/1990 | US4969957 Method of producing a mechanical component with superior fatigue strength |
| 11/13/1990 | CA1276095C Method for softening rolled medium carbon machine structural steels |
| 11/07/1990 | EP0396235A2 Method for producing permanent magnet alloy particles for use in producing bonded permanent magnets |
| 11/07/1990 | CN1046763A Mn alloy steel |
| 11/06/1990 | US4968357 Hot-rolled alloy steel plate and the method of making |
| 11/05/1990 | CA2014191A1 Method for producing permanent/magnet alloy particles for use in producing bonded permanent magnets |
| 11/01/1990 | WO1990012897A1 Method of manufacturing non-oriented electromagnetic steel plates with excellent magnetic characteristics |
| 11/01/1990 | WO1990012896A1 Method of manufacturing non-oriented electromagnetic steel plates with excellent magnetic characteristics |
| 10/31/1990 | EP0395623A1 Maraging steel |
| 10/31/1990 | EP0395477A1 Highly wear-resistant roll steel for cold rolling mills |
| 10/31/1990 | EP0394696A1 Method of producing grain oriented electrical steel sheet having high magnetic flux density |
| 10/31/1990 | CN1046564A Cr-mn-n series stainless steel used on rotor wheel of water turbine |
| 10/30/1990 | US4966751 Steel having good wear resistance |
| 10/30/1990 | US4966636 Ferrite-austenite |
| 10/30/1990 | US4966626 Rare earth borides |
| 10/24/1990 | EP0393508A1 Process for producing grain-oriented electrical steel sheet having superior magnetic characteristic |
| 10/24/1990 | CN1010107B Non-magnetic iron-base stainless steel used for cold upsetting |
| 10/23/1990 | US4964926 Flat rolled; stabilized with titanium and niobium; improved high temperature resistance and strength; automotive exhausts |
| 10/23/1990 | US4964924 Papermaking |
| 10/23/1990 | US4964922 Forming transverse parellel spaced stripes |
| 10/23/1990 | US4964909 Heat-insulating component and a method of making same |
| 10/23/1990 | US4964908 High density sintered ferrous alloys |
| 10/23/1990 | US4964195 Metallic card clothing |
| 10/17/1990 | EP0392202A2 Use of a fine crystalline iron-based alloy as a magnet core in an interface transformer |
| 10/17/1990 | EP0392011A1 HEAT-RESISTANT HIGH-Al AUSTENITIC STEEL HAVING EXCELLENT HOT WORKING PROPERTIES |
| 10/17/1990 | EP0391949A1 Precipitation hardening tool steel for forming tools and forming tool made from the steel |
| 10/17/1990 | EP0250414B1 Method in producing a molding of an iron alloy |
| 10/17/1990 | CN1046190A Process for raising chromium recovery ratio by use of high-carbon chrome iron for smelting stainless steel |
| 10/11/1990 | DE3910959A1 Verfahren zum herstellen von waelzlagerelementen aus durchhaertendem waelzlagerstahl Method for the manufacture of waelzlagerelementen from durchhaertendem waelzlagerstahl |
| 10/10/1990 | EP0391054A1 Use of a heat-resistant steel for corrosion-resistant components |
| 10/10/1990 | EP0391007A1 Intermediate member for connecting a part made from manganese steel to a part made from carbon steel, process for connecting these materials using this intermediate member and assembly obtained by this process |
| 10/09/1990 | US4961904 High strength; roller bearings in aviation, space exploration, heavy duty geat boxes, high speed lathes |
| 10/09/1990 | US4961903 Also with chromium, boron; ductility, corrosion resistance |
| 10/09/1990 | US4961793 Comprising specific amounts of carbon, manganese, silicon, sulfur, phosphorus, nitrogen, aluminum, copper and iron |
| 10/03/1990 | EP0390468A1 High-strength, high-fracture-toughness structural alloy |
| 10/03/1990 | EP0390140A1 Process for producing grain-oriented electrical steel sheet having excellent magnetic characteristic |
| 10/03/1990 | EP0389511A1 SINTERED Fe-Nd-B MAGNET |
| 10/03/1990 | CN1045894A Electron gun having electrodes effective for improving convergence in color cathode ray tube |
| 10/03/1990 | CN1045814A Low nickel heat-resisting steel |
| 10/03/1990 | CN1045813A Steel sheets for porcelain enameling and method of producing same |
| 10/02/1990 | US4960474 Iron, boron and rare earth components; anisotropic; flat disks |
| 10/02/1990 | US4960473 Isothermal transformation from face centered to body centered cubic microstructure |
| 10/02/1990 | US4960470 Heat treatment as controlled rolling and low temperature solution |
| 10/02/1990 | US4960469 Method of manufacturing magnetically anisotropic magnet materials and device for same |
| 09/26/1990 | EP0388415A1 Use of a tool steel for tools for pressing motor car sheet steel. |
| 09/26/1990 | CN1009740B Corrosion resistant amorphous chromium alloy compositions |
| 09/25/1990 | US4959513 Magnetically biased device incorporating a free machining, non-magnetic, austenitic stainless steel |
| 09/25/1990 | US4959274 Multilayered iron-copper-lead alloy bearing material |
| 09/25/1990 | US4959273 Corrosion-resistant permanent magnet and method for preparing the same |
| 09/25/1990 | US4958422 Wear-resistant compound roll |
| 09/25/1990 | CA1274356A1 Highly tough erw steel pipe with distinguished sour resistance |
| 09/19/1990 | EP0388283A1 Stainless ferritic steel and process for manufacturing this steel |
| 09/19/1990 | EP0387670A1 Ferritic-steel alloy |
| 09/18/1990 | US4957702 Air-cooling duplex bainite-martensite steels |
| 09/18/1990 | US4957701 High-strength high-Cr ferritic heat-resistant steel |
| 09/18/1990 | US4957700 High strength non-magnetic stainless steel |
| 09/18/1990 | US4957699 Soft magnetic Cr-Al steel |
| 09/18/1990 | CA1274155A1 Hard steel sheet manufactured from al-killed continuous-cast carbon-manganese steel, and a method for the manufacture of such sheet |
| 09/17/1990 | WO1990010723A1 Ferritic steel and method for producing such a steel |
| 09/16/1990 | CA2012065A1 Heat-deformable, ferritic steel alloy |
| 09/13/1990 | DE3937031C1 Conversion of work material to martensitic chromium steel - for prepn. of sharp knives |
| 09/12/1990 | EP0386758A1 Steel sheets for porcelain enameling and method of producing the same |
| 09/12/1990 | EP0386728A1 Martensitic stainless steels excellent in corrosion resistance and stress corrosion cracking resistance and method of heat treatment of the steels |
| 09/12/1990 | EP0386673A1 High-strength high-Cr steel with excellent toughness and oxidation resistance |
| 09/12/1990 | EP0386472A2 Process for producing rare earth-iron-boron-type permanent magnets |
| 09/11/1990 | US4956242 Steel foil for drawing container with organic film coat |
| 09/11/1990 | US4956025 Coiling, crystallization |
| 09/11/1990 | CA1273828A1 Energy storage devices and amorphous alloy electrodes for use in acid environments |
| 09/11/1990 | CA1273826A1 Amorphous metal alloy compositions for reversible hydrogen storage |
| 09/05/1990 | CN1045129A Method for smelting reduction of ni ore |
| 09/05/1990 | CN1009472B Protective tip for titanium alloy turbine blade |
| 09/05/1990 | CN1009435B Apparatus for thermal cleavage of hydrocarbons |
| 09/04/1990 | CA1273511A1 Reinforcing steel having resistance to salt and capable of preventing deterioration of concrete |
| 08/30/1990 | DE4002618A1 Low carbon martensitic steel - with low hardening produced during pre- or post-heating during welding process |
| 08/29/1990 | EP0384433A1 Ferritic heat resisting steel having superior high-temperature strength |
| 08/29/1990 | EP0384317A1 Martensitic stainless steel and method of heat treatment of the steel |
| 08/29/1990 | EP0384181A2 Steam turbine rotor shaft and heat-resisting steel therefor |
| 08/29/1990 | CN1044959A Low-aluminium silicon-titanium-iron alloy and its producing process |
| 08/29/1990 | CN1044958A Producing process of high-titanium alloy |
| 08/29/1990 | CN1009375B Productive method for particulate si-p-fe alloy |
| 08/28/1990 | US4952250 Method for manufacturing steel article having high toughness and high strength |
| 08/28/1990 | US4952239 Rare earth metal, iron, boron and additives as alloy component |
| 08/28/1990 | CA1273232A1 Oxygen containing permanent magnet alloy |
| 08/28/1990 | CA1273231A1 Permanent magnet alloy |
| 08/28/1990 | CA1273230A1 Molybdenum-free, chromium-containing alloy resistant to sulphuric acid |
| 08/23/1990 | CA2010587A1 Method of making non-oriented magnetic steel strips |