| Patents for C21D 6 - Heat treatment of ferrous alloys (4,815) |
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| 08/22/2000 | US6105374 Precooling to a deep cryogenic treatment |
| 08/17/2000 | WO2000048152A1 Magneto-acoustic marker for electronic article surveillance having reduced size and high signal amplitude |
| 08/09/2000 | EP1024917A1 A steel and a heat treated tool thereof manufactured by an integrated powder metallurgical process and use of the steel for tools |
| 08/09/2000 | CN1055315C Heat treatment method for iron-base ultramicaolith iron core |
| 08/08/2000 | US6099669 Method for producing a Fe-Ni alloy sheet and a Fe-Ni alloy shadow mask |
| 08/08/2000 | US6099668 Heat resisting alloy for exhaust valve and method for producing the exhaust valve |
| 08/03/2000 | WO2000044956A1 High-hardness powder metallurgy tool steel and article made therefrom |
| 08/02/2000 | EP0820529B1 Method of manufacturing hot-worked elongated products, in particular bar or pipe, from high-alloy or hypereutectoid steel |
| 08/02/2000 | CN1261717A Squareness ratio increased R-T-B serial rare earth sintered magnetic body and its making method |
| 08/02/2000 | CN1055129C Die and quenching method of the same |
| 08/01/2000 | US6096262 Martensitic heat resisting steel |
| 07/27/2000 | WO2000043562A1 Stainless steels |
| 07/27/2000 | WO2000043555A1 Process of the production of high-carbon cast steels intended for wearing parts |
| 07/25/2000 | US6093261 Specified alloy including iron, cobalt, nickel, boron, silicon, carbon; use as strip in a marker for an article surveillance system which detects signals produced by mechanical resonance of marker within applied magnetic field |
| 07/19/2000 | EP1019549A1 Pitting resistant duplex stainless steel alloy with improved machinability |
| 07/18/2000 | US6090230 Simultaneously cooling interior and exterior of martensitic stainless steel pipe at same rate with flowing coolant water while rotating pipe around its longitudinal axis |
| 07/13/2000 | WO2000040764A2 Ultra-high strength ausaged steels with excellent cryogenic temperature toughness |
| 07/13/2000 | CA2353984A1 Ultra-high strength ausaged steels with excellent cryogenic temperature toughness |
| 07/12/2000 | EP1018125A1 Metallic glass alloys for mechanically resonant marker surveillance systems |
| 07/12/2000 | EP1017863A1 Methods for producing constituent members made of ageing-sensitive steel and coated with baking enamel |
| 07/12/2000 | EP1017862A1 Method for producing ultra-high strength, weldable steels with superior toughness |
| 07/12/2000 | EP1017861A1 Method for reducing the resistivity of the corrosion-induced oxide layer, and applications |
| 07/05/2000 | EP1015646A1 Austenitic stainless steel strips having good weldability as cast |
| 06/27/2000 | US6080247 Comminuting media comprising martensitic/austenitic steel containing retained work-transformable austenite |
| 06/22/2000 | WO2000036164A1 Wear resistant dimensionally stable bearing component for high temperature applications |
| 06/21/2000 | DE19857156A1 Verfahren zum Herstellen eines Bleches aus martensitaushärtendem Stahl A method of manufacturing a sheet of maraging steel |
| 06/20/2000 | US6077367 Method of production glassy alloy |
| 06/15/2000 | DE19853285C1 Verfahren zur Herstellung einer Schutzschicht auf einem martensitischen Stahl und Verwendung des mit der Schutzschicht versehenen Stahls A method for producing a protective layer on a martensitic steel and is provided with the use of the protective layer steel |
| 06/14/2000 | EP1008660A1 Low alloy steel for oil country tubular goods |
| 06/14/2000 | EP1008659A1 Process for producing a maraging steel sheet |
| 06/14/2000 | EP1007745A1 Metallurgical method for processing nickel- and iron-based superalloys |
| 06/13/2000 | US6074500 Method for producing a metal component made up of two partial elements |
| 06/07/2000 | EP1006204A1 Low carbon martensite stainless steel plate |
| 06/02/2000 | WO2000031312A1 Method for producing of a protective layer on a martensitic steel and utilisation of said steel coated with said protective layer |
| 05/31/2000 | EP1005050A2 R-T-B sintered magnet and method for producing same |
| 05/31/2000 | EP1004685A2 Heat-resisting cast steel |
| 05/24/2000 | EP1002885A2 Heat-resisting cast steel |
| 05/18/2000 | WO2000028101A1 New use of a stainless steel in seawater applications |
| 05/18/2000 | WO2000027578A1 Tool blank, use and manufacturing |
| 05/17/2000 | EP1001181A2 Rolling or sliding parts |
| 05/17/2000 | EP1001045A2 Heat-resisting cast steel |
| 05/17/2000 | EP1001044A2 Heat-resisting cast steel |
| 05/16/2000 | US6063218 Bearing manufacturing method |
| 05/04/2000 | WO2000024944A1 High strength corrosion resistant fe-ni-cr alloy |
| 05/03/2000 | EP0996759A1 Amorphous magnetostrictive alloy with low cobalt content and method for annealing same |
| 05/03/2000 | CN1252106A Ferromagnetic amorphous metallic alloy and annealing method |
| 05/02/2000 | US6057045 High-speed steel article |
| 05/02/2000 | US6056830 Hydrogenating and alloying rare earth element, iron, and boron powders; phase transformation; hydrogen desorption |
| 04/26/2000 | EP0995810A1 Stainless steel alloy for pulp refiner plate |
| 04/26/2000 | EP0995809A1 Steel for oil well pipes with high wet carbon dioxide gas corrosion resistance and high seawater corrosion resistance, and seamless oil well pipe |
| 04/26/2000 | EP0995806A1 Martensitic stainless steel tube and method for manufacturing the same |
| 04/25/2000 | US6053991 Production of cold working tool steel |
| 04/20/2000 | CA2285869A1 Stainless steel alloy for pulp refiner plate |
| 04/19/2000 | EP0994199A1 Stainless steel for gaskets and production thereof |
| 04/19/2000 | EP0691412B1 Method of manufacturing stainless steel sheet of high corrosion resistance |
| 04/18/2000 | US6051082 Made of steel with surface including carbides |
| 04/11/2000 | US6048414 Rolling bearings and methods of producing the same |
| 03/22/2000 | CN1050639C Iron/nickel alloy shadow mask |
| 03/16/2000 | WO2000014292A1 Stainless steel for engine gasket and production method therefor |
| 03/09/2000 | WO2000012772A1 Aperture grill material for color picture tube, production method thereof, aperture grill and picture tube |
| 03/07/2000 | US6033623 Method of manufacturing iron aluminide by thermomechanical processing of elemental powders |
| 03/07/2000 | US6033497 Pitting resistant duplex stainless steel alloy with improved machinability and method of making thereof |
| 02/29/2000 | US6030469 Fully martensitic steel alloy |
| 02/16/2000 | CN1244939A Magnetostrictive element for use in a magntomechanical surveillance system |
| 02/15/2000 | US6024916 Cast cold tool and method for producing the same |
| 02/10/2000 | WO2000006960A1 Process for nitriding of metal containing materials |
| 02/10/2000 | DE19934989A1 Composite magnetic element, useful for motor rotors and magnetic balances, consists of a chromium-aluminum steel with a nonmagnetic portion and a ferromagnetic portion having a specified low carbide content and coarse grain size |
| 02/09/2000 | EP0737757B1 High-strength ferritic heat-resistant steel and process for producing the same |
| 02/03/2000 | WO2000005733A2 High strength soft magnetic alloys |
| 02/01/2000 | US6019938 High ductility very clean non-micro banded die casting steel |
| 01/27/2000 | WO2000004198A1 Fe ALLOY MATERIAL FOR THIXOCASTING AND METHOD FOR HEATING THE SAME |
| 01/25/2000 | US6018296 Electronic detector |
| 01/19/2000 | CN1242133A Amorphous metallic alloy electrical heater system |
| 01/18/2000 | US6016029 Hot rolled low carbon steel subjected to cold rolling and annealing; excellent inner shield characteristics and improved handling strength |
| 01/18/2000 | CA2055154C Martensitic stainless steel |
| 01/12/2000 | EP0970257A1 Ferromagnetic amorphous metallic alloy and annealing method |
| 01/12/2000 | EP0638653B1 Process for producing chromium-containing stainless steel strip with excellent toughness |
| 01/06/2000 | WO2000000658A1 Case hardened steel with high tempering temperature, method for obtaining same and parts formed with said steel |
| 01/05/2000 | DE19828048A1 Chains or chain components especially high strength sliding chains useful as hoist or support chains and in chain scraper conveyors used in coal mines |
| 12/15/1999 | EP0964072A1 Austenitic stainless steel with resistance to deterioration by neutron irradiation |
| 12/08/1999 | EP0962543A1 High strength alloys with high magnetic saturation inductivity, and process for their manufacture |
| 12/08/1999 | EP0688883B1 Martensitic heat-resisting steel having excellent resistance to haz softening and process for producing the steel |
| 12/07/1999 | US5997806 Heat-resisting cast steel |
| 12/07/1999 | US5997662 Surface-hardened chain link |
| 12/02/1999 | WO1999061368A1 Hydrogen generation from reforming organic molecules using a palladium membrane reactor |
| 12/01/1999 | EP0960951A1 Steel with improved core toughness in case-carburized components |
| 11/24/1999 | CN1236401A Austenitic stainless steel with resistance to deterioration by neutron irradiation |
| 11/17/1999 | EP0957182A2 A martensitic heat resisting steel |
| 11/16/1999 | US5987088 High temperature and high pressure treatment of nuclear reactor cores |
| 11/16/1999 | US5983951 Iron chromium alloy with ferrite and martensite crystal structure |
| 11/10/1999 | EP0955388A1 Die casting steel and method for manufacture |
| 11/09/1999 | US5980662 Heating austenitic steel having low percentage carbon so that annealing occurs with an intergranular carbide precipitation rating of medium or less |
| 11/02/1999 | US5976277 High speed tool steel, and manufacturing method therefor |
| 11/02/1999 | US5976275 High-nickel austenitic stainless steel resistant to degradation by neutron irradiation |
| 10/28/1999 | DE19917625A1 Ferrous metal alloy, e.g. carbon steel, with high strength, high shaping capability and high cold workability |
| 10/27/1999 | CN1232877A Method of soft annealing high carbon steel |
| 10/13/1999 | EP0949346A1 Process of producing a dispersion strengthened ferritic-martensitic alloy |
| 10/13/1999 | CN1231345A Method for making Fe-Ni alloy used in electron gun parts |
| 10/12/1999 | US5966064 Nanocrystalline alloy having excellent pulse attenuation characteristics, method of producing the same, choke coil, and noise filter |
| 10/07/1999 | WO1999050469A1 Cold work steel |