| Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120) |
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| 01/06/2010 | CN100577841C Austenitic stainless steel sheet excellent in color tone of surface and method for manufacturing same |
| 01/06/2010 | CN100577839C Method for manufacturing 590MPa stage low yield ratio low carbon equivalent weight steel plate for building |
| 01/05/2010 | US7641742 Carbonitriding or nitriding at 810-950 degrees C. a part formed of a steel containing 0.8-1.5 wt % of carbon, 0.4-1.2 wt % of silicon, 0.8-1.5 wt % of manganese, and 0.5-1.8 wt % of chromium, the steel having a position exhibiting HRC50 in a hardenability test; dimensional stability |
| 12/31/2009 | US20090324441 Austenitic stainless cast steel part, method for production and use thereof |
| 12/31/2009 | US20090324440 Reduction Processing of Metal-Containing Ores in The Presence of Microwave and RF Energy |
| 12/31/2009 | US20090320970 Salvage process for spring elements |
| 12/31/2009 | US20090320965 UOE steel pipe excellent in collapse strength and method of production thereof |
| 12/31/2009 | DE19941228B4 Eisenaluminidbeschichtung und deren Verwendung Iron aluminide and the use thereof |
| 12/30/2009 | WO2009157661A2 Bake hardening steel with excellent surface properties and resistance to secondary work embrittlement, and preparation method thereof |
| 12/30/2009 | WO2009157557A1 Stainless steel material for separator of solid polymer fuel cell and solid polymer fuel cell using the same |
| 12/30/2009 | EP2138600A1 High-strength hot-dip zinc-coated steel sheet |
| 12/30/2009 | EP2138599A1 High-strength hot-dip galvanized steel sheet and method for producing the same |
| 12/30/2009 | EP2138598A1 Exhaust guide part of turbocharger with nozzle vane |
| 12/30/2009 | EP2138597A1 Hot-worked steel material having excellent machinability and impact value |
| 12/30/2009 | EP2138596A1 Steel sheet for use in can, and method for production thereof |
| 12/30/2009 | EP2137327A1 Steel for tool-less hot forming or quenching with improved ductility |
| 12/30/2009 | CN201373066Y Martensitic stainless steel chain |
| 12/30/2009 | CN101617062A Electric resistance welded steel pipe for line pipe excelling in weld part toughness |
| 12/30/2009 | CN101613841A Ultrahigh-malleability tunnel supporting anchor rod steel of converter continuous cast billet and production method |
| 12/30/2009 | CN101613840A Super-thick steel plate with obdurability matching and excellent high-temperature performance and manufacturing method thereof |
| 12/30/2009 | CN101613839A High nitrogen and low nickel duplex stainless steel and manufacturing method thereof |
| 12/30/2009 | CN101613838A Niobium-titanium composite micro-alloyed hot rolled steel strip and manufacturing method thereof |
| 12/30/2009 | CN101613837A Manufacturing method of titanium micro-alloyed steel continuous casting heavy slab |
| 12/30/2009 | CN101613836A Manufacturing method of niobium-titanium composite micro-alloyed steel continuous casting heavy slab |
| 12/30/2009 | CN101613835A Alloy hot rolled steel plate and method for manufacturing high-pressure air bottle by using same |
| 12/30/2009 | CN101613834A Fe-based austenite alloy oil sleeve and manufacturing method for high-acidity deep well |
| 12/30/2009 | CN101613833A Ni-based alloy oil sleeve and manufacturing method for high-acidity deep well |
| 12/30/2009 | CN101613832A Ferrite type heat-resisting steels |
| 12/30/2009 | CN101613831A Non-hardened and non-tempered high-hardness hot rolled steel, manufacturing method thereof and application thereof |
| 12/30/2009 | CN101613830A Hot rolled bainite steel rail and production process |
| 12/30/2009 | CN101613829A Steel pipe for borehole operation of 150ksi steel grade high toughness oil and gas well and production method thereof |
| 12/30/2009 | CN101613828A Super-thick steel plate for low yield ratio buildings with 460 MPa grade yield strength and manufacturing method |
| 12/30/2009 | CN101613827A High-performance cold rolled phase transformation plasticity steel and preparation method thereof |
| 12/30/2009 | CN100575531C Composite low-carbon free-cutting steel and preparation thereof |
| 12/30/2009 | CN100575530C Thermal fatigue resisting austenite steel |
| 12/30/2009 | CN100575529C Thick steel sheet having excellent HAZ toughness for super high input heat and parent material toughness for low temperature |
| 12/30/2009 | CN100575528C Cobalt-less multi-element high speed tool steel and its manufacturing method |
| 12/30/2009 | CN100575527C Thin belt continuous casting austenitic stainless steel belt and manufacturing method thereof |
| 12/30/2009 | CN100575526C Nickel-free metastable austenitic stainless steel with TRIP effect |
| 12/30/2009 | CN100575525C Preharden steel with excellent cutting performance and toughness and manufacturing method therefor |
| 12/30/2009 | CN100575509C Comprehensive utilization method for red mud |
| 12/30/2009 | CN100574935C Steel strip and method for casting steel strip |
| 12/30/2009 | CN100574921C High-strength part and process for producing the same |
| 12/30/2009 | CN100574910C Centrifugal casting for semi-steel/graphite steel composite roll collar and its preparation method |
| 12/30/2009 | CA2729091A1 Stainless steel material for a separator of a solid polymer fuel cell and a solid polymer fuel cell using the separator |
| 12/29/2009 | CA2463688C Martensitic stainless steel |
| 12/29/2009 | CA2399936C Method of producing high nitrogen ultra low carbon steel |
| 12/24/2009 | US20090317285 High strength steel plate superior in stretch flange formability and fatigue characteristics |
| 12/24/2009 | US20090317284 High strength steel plate with high manganese having excellent burring workability |
| 12/24/2009 | US20090317283 Corrosion-Resistant, Cold-Formable, Machinable, High Strength, Martensitic Stainless Steel |
| 12/24/2009 | US20090317282 Method for manufacturing porous body |
| 12/24/2009 | US20090317281 method of atomic transformation |
| 12/23/2009 | WO2009154245A1 Ni-BASE ALLOY-HIGH CHROMIUM STEEL STRUCTURE AND PROCESS FOR PRODUCING THE NI-BASE ALLOY-HIGH CHROMIUM STEEL STRUCTURE |
| 12/23/2009 | WO2009154235A1 Steel for heat treatment |
| 12/23/2009 | EP2135967A1 Forging steel |
| 12/23/2009 | EP2135966A1 Pearlite steel rail of high internal hardness type excellent in wear resistance and fatigue failure resistance and process for production of the same |
| 12/23/2009 | EP2135963A1 Process for manufacturing martensite stainless steel pipe |
| 12/23/2009 | EP2135962A1 Case-hardened steel pipe excellent in workability and process for production thereof |
| 12/23/2009 | EP2135699A1 Hot water container and process for production thereof |
| 12/23/2009 | EP2134882A2 Microalloyed steel with good resistance to hydrogen for the cold-forming of machine parts having high properties |
| 12/23/2009 | EP1573075B8 Method for producing a steel product |
| 12/23/2009 | CN101611163A Low yield ratio dual phase steel linepipe with superior strain aging resistance |
| 12/23/2009 | CN101611162A Ferritic stainless steel for exhaust gas passage member |
| 12/23/2009 | CN101609689A Magnetic recording medium based on multiferroic film and write-in method thereof |
| 12/23/2009 | CN101608286A Duplex stainless steel with special magnetic property |
| 12/23/2009 | CN101608285A Interstitial free (IF) hot rolled strip and manufacturing method thereof |
| 12/23/2009 | CN101608284A Titanium microalloyed hot rolled strip and manufacturing method thereof |
| 12/23/2009 | CN101608283A Thick steel plate with excellent brittlement crevasse crack propagation halt characteristic and manufacturing method thereof |
| 12/23/2009 | CN101608282A Drill rod material steel pipe resisting low temperature of -40 to -60 DEG C and manufacturing method thereof |
| 12/23/2009 | CN101608281A Giant magnetostrictive large volume Fe81Ga19 alloy material and preparation method thereof |
| 12/23/2009 | CN100572762C Spiracula seat of car engine as well as manufacturing technology thereof |
| 12/23/2009 | CN100572743C Continuous expansion tube |
| 12/23/2009 | CN100572110C Annular concentrically twisted bead cord |
| 12/23/2009 | CN100571971C Hot rolled steel plate for punch process and method of manufacturing the same |
| 12/22/2009 | US7635406 Method for manufacturing a low alloy steel excellent in corrosion resistance |
| 12/22/2009 | CA2573224C High-strength quenched formed body with good corrosion resistance and process for producing the same |
| 12/17/2009 | WO2009151140A1 High-strength steel sheet and process for producing molten steel for high-strength steel sheet |
| 12/17/2009 | WO2009150989A1 Process for producing high-alloy seamless pipe |
| 12/17/2009 | WO2009150904A1 Steel material for dissimilar metal joining, joined body of dissimilar metals and process for joining dissimilar metal materials |
| 12/17/2009 | WO2009150885A1 Stainless steel and surface treatment method for stainless steel |
| 12/17/2009 | WO2009150843A1 R-t-cu-mn-b type sintered magnet |
| 12/17/2009 | WO2009150319A1 Method for manufacturing very high strength, cold-rolled, dual phase steel sheets, and sheets thus produced |
| 12/17/2009 | US20090311125 Hot-working steel excellent in machinability and impact value |
| 12/17/2009 | US20090311122 Powder forged member, powder mixture for powder forging, method for producing powder forged member, and fracture split type connecting rod using the same |
| 12/17/2009 | US20090308504 Steel sheet excellent in fine blanking performance and manufacturing method of the same |
| 12/17/2009 | US20090308503 Rod or wire manufacturing system, related methods, and related products |
| 12/17/2009 | US20090308502 Process for obtaining a pipe for supplying fuel to an internal combustion engine |
| 12/17/2009 | US20090308499 Process for manufacturing iron-carbon-manganese austenitic steel sheet with excellent resistance to delayed cracking, and sheet thus produced |
| 12/17/2009 | DE112007002815T5 Verfahren zur Herstellung eines ausgerichteten Körpers, eines geformten Körpers und eines gesinterten Körpers, sowie Verfahren zur Herstellung eines Permanentmagneten A process for producing an aligned body, a molded body and a sintered body and process for producing a permanent magnet |
| 12/17/2009 | DE102009023479A1 Bauelement aus einem ferromagnetischen Formgedächtnismaterial und dessen Verwendung Component of a ferromagnetic shape memory material and its use |
| 12/17/2009 | CA2727224A1 High-strength steel sheet and method of producing molten steel for high-strength steel sheet |
| 12/17/2009 | CA2725290A1 Method for manufacturing very high strength, cold-rolled, dual phase steel sheets, and sheets thus produced |
| 12/16/2009 | EP2133443A1 Low alloy steel for the pipe for oil well use and seamless steel pipe |
| 12/16/2009 | EP2133442A1 Low-alloy steel, seamless steel pipe for oil well, and process for producing seamless steel pipe |
| 12/16/2009 | EP2133441A1 High-strength hot-rolled steel plate excellent in low-temperature toughness for spiral pipe and process for producing the same |
| 12/16/2009 | EP2133440A1 Ferritic stainless steel for warm-water vessel with welded structure, and warm-water vessel |
| 12/16/2009 | EP2132351A1 Apparatus for extraction of saccharides from lignocellulose material by means of hydrolysis and use of a certain material in the apparatus |
| 12/16/2009 | EP2132350A1 Turbine component with thermal insulation layer |
| 12/16/2009 | EP2049699B1 Method for steel strip coating and a steel strip provided with said coating |
| 12/16/2009 | CN101605616A Process for producing seamless steel pipe made of high-chromium high-nickel alloy steel |