Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120) |
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08/11/2011 | CA2788713A1 High-strength welded steel pipe and method for producing the same |
08/10/2011 | EP1635087B1 Pin for chain and method for manufacture thereof |
08/10/2011 | CN102149842A Stainless steel, cold strip produced from said steel, and method for producing a flat steel product from said steel |
08/10/2011 | CN102149841A High-strength steel sheet and method for production thereof |
08/10/2011 | CN102149840A High-strength steel plate and manufacturing method thereof |
08/10/2011 | CN102149839A Carbon steel sheet having excellent carburization properties, and method for producing same |
08/10/2011 | CN102149838A Turbocharger and adjustable blade therefor |
08/10/2011 | CN102149837A Turbocharger and blade bearing ring therefor |
08/10/2011 | CN102149836A Alloys for soft magnetic film layers in vertical magnetic recording media, sputtering target materials and manufacturing method therefore |
08/10/2011 | CN102149830A Directional electromagnetic steel plate manufacturing method |
08/10/2011 | CN102149500A Roll for supporting and conveying hot material, method for the production of a roll, method for repairing a used roll |
08/10/2011 | CN102146549A Method for producing steel for LQ380G wheels |
08/10/2011 | CN102146548A High-efficiency wear-resistant hammer head |
08/10/2011 | CN102146547A Alloy steel roller and manufacturing process thereof |
08/10/2011 | CN102146546A High-fluidity and high-abrasion resistant alloy material for solid material conveying pipe |
08/10/2011 | CN102146545A Method and composition for producing high-purity silicon iron |
08/10/2011 | CN102146527A Method for smelting low-aluminum high-vanadium iron |
08/10/2011 | CN101886215B Short-flow high-efficiency preparation method of thin high-silicon electrical steel strip |
08/10/2011 | CN101850423B High strength self-lubricating iron-copper powder composite material and preparation method thereof |
08/10/2011 | CN101831593B C90-1 steel-grade bushing special for petroleum and natural gas and manufacturing process thereof |
08/10/2011 | CN101767177B Method for forging bearing support forge piece |
08/10/2011 | CN101709430B High manganese steel crusher hammer with high original hardness and manufacturing method thereof |
08/10/2011 | CN101694879B Mo-nitride-containing surface modification fuel cell stainless steel bipolar plate and manufacturing method thereof |
08/10/2011 | CN101248194B High-strength steel pipe and method of heat treatment therefor |
08/09/2011 | US7993542 Magnetic material for magnetic refrigeration |
08/09/2011 | CA2502079C Method for making hardenable steel plates by firing, resulting steel plates |
08/04/2011 | WO2011093516A1 Highly corrosion-resistant hot-rolled ferrite stainless steel sheet having excellent toughness |
08/04/2011 | WO2011093490A1 Steel sheet and process for producing steel sheet |
08/04/2011 | WO2011093319A1 High-strength cold-rolled steel sheet, and process for production thereof |
08/04/2011 | WO2011093117A1 Production method for seamless steel pipe used in line pipe, and seamless steel pipe used in line pipe |
08/04/2011 | WO2011093070A1 Case-hardened steel and carburized material |
08/04/2011 | WO2011093059A1 Method of heat-treating metal pipes for nuclear power plant, batch-type vacuum heat-treatment furnace used therefor, and metal pipe for nuclear power plant treated using same |
08/04/2011 | WO2011092905A1 Wire material, steel wire, and processes for production of those products |
08/04/2011 | WO2011091983A2 Process for the heat treatment of metal strip material, and strip material produced in that way |
08/04/2011 | US20110189496 Steel alloy for ferritic steel having excellent creep strength and oxidation resistance at elevated usage temperatures |
08/04/2011 | US20110189401 Successive corrosion-protecting pre-treatment of metal surfaces in a multiple-step process |
08/04/2011 | US20110189047 Railroad rail steels resistant to rolling contact fatigue |
08/04/2011 | US20110186191 Steel sheet for vitreous enameling and method for producing the same |
08/04/2011 | US20110186189 High-strength cold-rolled steel sheet excellent in workability and method for manufacturing the same |
08/04/2011 | US20110186186 Iron and steel material having quenched surface layer part, method for producing the iron and steel material, and quenched component |
08/04/2011 | US20110186185 High strength steel sheet excellent in formability and method producing the same |
08/04/2011 | US20110186184 Ferritic stainless steel casting and sheet and method for producing the same |
08/04/2011 | US20110186182 Steel for nitrocarburizing and nitrocarburized parts |
08/04/2011 | CA2788143A1 Process for the heat treatment of metal strip material, and strip material produced in that way |
08/04/2011 | CA2788095A1 Steel sheet and method of manufacturing steel sheet |
08/04/2011 | CA2787575A1 High-strength cold-rolled steel sheet and method of manufacturing thereof |
08/04/2011 | CA2786978A1 Method for heat-treating metal tubes or pipes for nuclear power plant, batch-type vacuum heat treatment furnace used therefor, and metal tubes or pipes for nuclear power plant heat-treated by the same |
08/04/2011 | CA2785425A1 Method for manufacturing seamless steel pipe for line pipe and seamless steel pipe for line pipe |
08/03/2011 | EP2351868A1 Ferritic stainless steel sheet for egr coolers |
08/03/2011 | EP2351867A1 High strength hot rolled steel sheet excellent in bore expanding workability and method for production thereof |
08/03/2011 | EP2351864A1 High-hardness constant-modulus alloy insensitive to magnetism, process for producing same, balance spring, mechanical driving device, and watch |
08/03/2011 | EP2351860A1 Biocompatible material made of stainless steel with a martensitic layer obtained by quenching a nitrided layer on the surface. |
08/03/2011 | EP2350332A1 High-strength steel sheet and the method for production therefor |
08/03/2011 | EP2350326A1 Ultra-high strength stainless alloy strip, a method of making same, and a method of using same for making a golf club head |
08/03/2011 | EP2349615A1 Method for the manufacture of a compound product with a surface region of a wear resistant coating, such a product and the use of a steel material for obtaining the coating |
08/03/2011 | EP1511873B1 Cold work steel and cold work tool |
08/03/2011 | EP1479787B1 Sinter magnet made from rare earth-iron-boron alloy powder for magnet |
08/03/2011 | CN102144267A Corrosion-resistant magnet and manufacturing method therefor |
08/03/2011 | CN102144041A Seamless pipe of martensitic stainless steel for oil well pipe and process for producing the same |
08/03/2011 | CN102140612A Multi-component alloy cast steel bucket tooth and production process thereof |
08/03/2011 | CN102140611A 135 steel-level drill rod connector and heat treatment process thereof |
08/03/2011 | CN102140610A Steel suitable for drill rod joint in low-temperature environment and heat treatment process of steel |
08/03/2011 | CN102140609A Composite silicon and aluminum-added 590MPa-level transformation-induced plasticity steel and preparation method |
08/03/2011 | CN102140608A High-strength cold-rolled steel sheet excellent in workability and method for manufacturing the same |
08/03/2011 | CN102140607A Method for manufacturing hot rolled {111}(112) oriented high-silicon steel plates |
08/03/2011 | CN102140606A Hot rolled high-strength low-alloy multi-phase steel and preparation method thereof |
08/03/2011 | CN102140604A Low-temperature vanadium adding method for preparing VCp/Fe composite material by using in-situ reaction casting process |
08/03/2011 | CN102139473A Process for clearing metal grinding materials for derusting by using special steel wires for steel wire rope |
08/03/2011 | CN101818235B Manufacturing method of rough-rolled tyre for railway locomotive |
08/03/2011 | CN101812631B Steel for expandable casing for oil well and manufacturing method thereof |
08/03/2011 | CN101792885B Hot-rolled round steel for high carbon manganese and chrome grinding ball and method for producing same |
08/03/2011 | CN101704092B Bimetal liquid-liquid composite packer and production method thereof |
08/03/2011 | CN101657555B Steel material having excellent high-temperature strength and toughness, and method for production thereof |
08/03/2011 | CN101622369B High strength hot rolled steel products for line-pipes excellent in low temperature toughness and production method of the same |
08/03/2011 | CN101622080B High tensile cold rolled steel plate and method for manufacturing the cold rolled steel plate |
08/03/2011 | CN101583726B Method for quenching steel product |
08/03/2011 | CN101541994B Weld steel pipe with excellent low-temperature toughness for high-strength line pipe and process for producing the same |
08/03/2011 | CN101535518B Steel plate for linepipe having ultra-high strength and excellent low temperature toughness and manufacturing method of the same |
08/03/2011 | CN101492788B Microalloy non-hardened and tempered steel and controlled forging and cooling process |
08/03/2011 | CN101484602B High-tensile strength welded steel tube for structural partsof automobiles and method of producing the same |
08/03/2011 | CN101326568B Music string and instrument comprising said string |
08/03/2011 | CN101155935B Process for producing hot-dipped hot-rolled steel sheet |
08/02/2011 | CA2431580C Dense, dry, self-lubricating material; mechanical part made of the said material; procedure for fabricating such material |
07/28/2011 | WO2011090205A1 Steel plate for cold forging and process for producing same |
07/28/2011 | WO2011090184A1 High-strength hot-dip galvanized steel sheet with excellent processability and spot weldability and process for producing same |
07/28/2011 | WO2011090183A1 High-strength hot-dip galvanized steel sheet reduced in burr formation and process for producing same |
07/28/2011 | WO2011090182A1 High-strength hot-dip galvanized steel sheet with excellent fatigue property and hole expansibility and process for producing same |
07/28/2011 | WO2011090180A1 High-strength hot-dip galvanized steel sheet with excellent material stability and processability and process for producing same |
07/28/2011 | WO2011090179A1 High-strength hot-dip galvanized steel sheet with excellent processability and impact resistance and process for producing same |
07/28/2011 | WO2011089998A1 Ferritic stainless steel for high temperature use |
07/28/2011 | WO2011089845A1 Method for producing hot-rolled high carbon steel sheet |
07/28/2011 | WO2011089782A1 Wire material, steel wire, and process for production of wire material |
07/28/2011 | WO2010087766A8 Stainless austenitic low ni steel alloy |
07/28/2011 | US20110182765 Use of a steel alloy |
07/28/2011 | US20110182764 Heat-resistant steel for engine valve excellent high-temperature strength |
07/28/2011 | DE102009028020B4 Bohrer und Herstellungsverfahren Drills and methods of manufacture |
07/28/2011 | CA2787564A1 Steel plate for cold forging and process for producing same |
07/28/2011 | CA2786381A1 High-strength galvanized steel sheet having excellent formability and spot weldability and method for manufacturing the same |
07/27/2011 | EP2348518A1 Method for producing rare earth sintered magnet and powder container for rare earth sintered magnet production |
07/27/2011 | EP2347019A1 Granulator blades with a high wear resistance and sharpening method thereof |