Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120)
06/2012
06/20/2012CN102505093A Solid expansion tube steel for open hole completion of oil and gas well and manufacturing method thereof
06/20/2012CN102502898A Stirring knife for sewage treatment, using method and equipment
06/20/2012CN102051527B Pipe made of high-strength and high-tenacity X90 thick wall seamless pipeline steel and manufacturing method thereof
06/20/2012CN101925678B Hollow member and method for manufacturing same
06/20/2012CN101921964B X70QS seamless line pipe with HIC (Hydrogen Induced Cracking) resistance
06/20/2012CN101857942B Hot rolled steel plate with 590MPa-level tensile strength and production method thereof
06/20/2012CN101835917B Thick steel sheet having high strength and method for producing same
06/20/2012CN101736197B Steels with excellent toughness for welding heat affected section and method of producing the same
06/20/2012CN101573466B Ferritic stainless steel and manufacture method thereof
06/20/2012CN101379208B Steel plate having excellent fine blanking processability and method for manufacture thereof
06/19/2012CA2718098C Hot-rolled steel sheet excellent in fatigue properties and stretch-flange formability and method for manufacturing the same
06/19/2012CA2488790C Steel and mould tool for plastic materials made of the steel
06/14/2012WO2012077827A1 Steel foil for solar cell substrate, solar cell substrate, solar cell, and methods for manufacturing the steel foil and the solar cell
06/14/2012WO2012077705A1 Gas-carburized steel component with excellent surface fatigue strength, gas-carburizing steel material, and process for producing gas-carburized steel component
06/14/2012WO2012077631A1 Composite magnetic material raw material and composite magnetic material
06/14/2012WO2012077628A1 Steel sheet for bottom covers of aerosol cans and method for producing same
06/14/2012WO2012077150A2 Process for manufacturing high manganese content steel with high mechanical resistance and formability, and steel so obtainable
06/14/2012WO2012077072A1 Heat treatment method for martensitic stainless steel parts made with rapid prototyping techniques and the like and hardened by precipitation
06/14/2012WO2012075919A1 Lining board for large-scale ball mill and method for heat treatment thereof
06/14/2012US20120145286 Hadfield steel and method for obtaining the same
06/14/2012US20120145285 Method for producing an iron-chromium alloy
06/14/2012US20120145283 Carburization heat treatment method and method of use
06/14/2012US20120144989 High ballistic strength martensitic armour steel alloy
06/14/2012DE202012003298U1 Vormaterial für Kunststoffformen oder Kunststoffform Material for plastic molds and plastic mold
06/14/2012CA2818911A1 Steel sheet for bottom covers of aerosol cans and method for producing same
06/13/2012EP2463397A1 ALLOY COMPOSITION, NANOCRYSTALLINE Fe ALLOY, AND PREPARATION METHOD THEREFOR
06/13/2012EP2463395A1 Metal plate for radiation heating, process for producing same, and processed metal having portion with different strength and process for producing same
06/13/2012EP2463394A1 Nonmagnetic stainless steel, member for radio-controlled timepiece, production process of nonmagnetic stainless steel, and radio wave receiver
06/13/2012EP2462252A2 Non-heat treated rolled steel and drawn wire rod with excellent toughness, and method for manufacturing the same
06/13/2012EP1704261B1 Bake-hardenable cold rolled steel sheet having excellent formability, and method of manufacturing the same
06/13/2012CN102498531A NdFeB sintered magnet production method and production device, and NdFeB sintered magnet produced with said production method
06/13/2012CN102498228A Feedstock powder for production of high hardness overlays
06/13/2012CN102498227A Bearing steels
06/13/2012CN102496403A Nonmagnetic copper-clad steel wire for electric wire/cable
06/13/2012CN102492897A Steel for lower plate of cargo oil tank of tanker
06/13/2012CN102492896A Steel for upper deck of cargo oil tank of tanker
06/13/2012CN102492895A Heat resistant steel for high temperature furnace tube
06/13/2012CN102492894A High-dimension stable corrosion-resistant martensite steel and preparation method of steel structural material
06/13/2012CN102492893A General oriented silicon steel produced by continuous casting and rolling of sheet billet and its manufacture method
06/13/2012CN102492823A Continuous annealing process of cold rolling low alloy high-strength steel plate with yield strength at grade of 420 MPa
06/13/2012CN102492815A Heat treatment technology after austenite shot-blast steel pipe cold deformation
06/13/2012CN102489681A Centrifugally cast cross-wedge rolling die and manufacturing method thereof
06/13/2012CN102489646A Method for processing steel ball
06/13/2012CN102489515A Manufacturing process method for seamless steel tube
06/13/2012CN102108469B Hot rolling hot straightening roll suitable for thick steel plates with thickness of less than or equal to 60mm and preparation method thereof
06/13/2012CN102002637B Alloy steel and manufacture method thereof
06/13/2012CN102002634B Carbon steel containing vanadium and titanium and manufacture method thereof
06/13/2012CN101818308B Steel for longitudinal resistance welded pipe with low yield ratio and manufacturing method thereof
06/13/2012CN101736200B High-carbon steel multi-alloy wear-resisting ball and production method thereof
06/13/2012CN101714443B Sintered magnet and rotating machine equipped with the same
06/13/2012CN101652822B R-Fe-B系稀土类烧结磁铁 R-Fe-B based rare-earth sintered magnet
06/13/2012CN101628307B Double-metal straightening roller and manufacturing process thereof
06/13/2012CN101622368B Electric resistance welded steel pipe prior to heat treatment and process for manufacturing the same
06/13/2012CN101586205B Method for producing low-alloy peritectic steel by medium-thickness slab caster
06/13/2012CN101365819B Steel wire having excellent cold heading quality and quenching property and method for producing the same
06/13/2012CN101277781B Weld joint formed with stainless steel-based weld metal for welding a zinc-based alloy coated steel sheet
06/13/2012CN101153370B Low alloy high-strength steel plate capable of being welded in large energy input and method of producing the same
06/12/2012US8197617 High-strength steel sheet having excellent elongation, stretch flangeability and weldability
06/12/2012US8197614 Spring steel with improved hardenability and pitting resistance
06/12/2012US8197574 Dispersoid reinforced alloy powder and method of making
06/12/2012CA2668069C Steel plate for linepipe having ultra-high strength and excellent low temperature toughness and manufacturing method of the same
06/12/2012CA2550454C Hardfacing electrode
06/07/2012WO2012074132A1 Process for production of hot-pressed member
06/07/2012WO2012073914A1 Steel sheet for can, and process for producing same
06/07/2012WO2012073896A1 Rolled steel bar or wire for hot forging
06/07/2012WO2012073772A1 Hot rolling method for silicon-containing steel slab
06/07/2012WO2012073538A1 High-strength bake-hardening cold-rolled steel sheet and method for manufacturing same
06/07/2012WO2012073488A1 Bearing steel exhibiting excellent machinability after spheroidizing annealing and excellent resistance to hydrogen fatigue after quenching/tempering
06/07/2012WO2012073485A1 Carburizing steel having excellent cold forgeability, and production method thereof
06/07/2012WO2012073458A1 Bearing steel exhibiting excellent machinability after spheroidizing annealing and excellent resistance to hydrogen fatigue after quenching/tempering
06/07/2012WO2012072884A1 Ultra high-strength structural steel and method for producing ultra high-strength structural steel
06/07/2012US20120141670 Open-porous metal foam body and a method for fabricating the same
06/07/2012US20120141318 Austenitic stainless steel
06/07/2012US20120138198 Bake-hardenable cold rolled steel sheet with superior strength, galvannealed steel sheet using the cold rolled steel and method for manufacturing the cold rolled steel sheet
06/07/2012US20120138197 High-strength hot-rolled steel sheet and method for manufacturing the same
06/07/2012CA2820571A1 Method for manufacturing warm press-formed members
06/07/2012CA2818682A1 Steel sheet for can having high strength and high formability, and method for manufacturing the same
06/07/2012CA2817408A1 Abrasion resistant steel, method of manufacturing an abrasion resistant steel and articles made therefrom
06/06/2012EP2460904A2 Austenitic steel for hydrogen technology
06/06/2012EP2460903A1 High-strength cold-rolled steel sheet and method for producing same
06/06/2012EP2460902A1 Grain-oriented magnetic steel sheet
06/06/2012EP2460901A1 High-strength steel sheet, and process for production thereof
06/06/2012EP2460900A1 Stainless steel for fuel cell separators which has excellent electrical conductivity and ductility, and process for production thereof
06/06/2012EP2460899A1 Ferritic stainless steel for egr cooler and egr cooler
06/06/2012EP2460897A1 Process for production of high-strength cold-rolled steel sheet having excellent chemical conversion processability
06/06/2012EP2460613A1 Welded structural member and welding method
06/06/2012EP2459756A1 Process for producing an ultra-low-carbon steel slab, strip or sheet
06/06/2012EP1876255B1 Carbonitriding or cementation steel and method of producing parts with said steel
06/06/2012EP1597404B1 Fine-grained martensitic stainless steel and method thereof
06/06/2012CN102485362A Method for producing high-strength, low alloy steel with copper
06/06/2012CN102127713B Oxide dispersion-strengthening ferrite steel with bicrystal structure and production method thereof
06/06/2012CN102080194B Large-deformation-preventing pipeline steel with excellent aging resistance and production method thereof
06/06/2012CN102041445B Preparation method of high-strength ultralow-expansion invar-based composite material
06/06/2012CN102031452B 合金钢及其制造方法 Alloy and manufacturing method thereof
06/06/2012CN101948983B Preparation method of rail steel
06/06/2012CN101914723B Hot-rolling large-deformation-resistance pipeline steel and preparation method thereof
06/06/2012CN101914715B Method for smelting stainless steel mother liquor
06/06/2012CN101903556B Processes for producing high-strength hot-dip galvanized steel sheet and high-strength galvannealed steel sheet
06/06/2012CN101892427B High manganese steel and manufacturing method
06/06/2012CN101880830B Steel with Brinell hardness of 430-470 for cutting edge and production method thereof