Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120)
07/2012
07/04/2012CN102534373A Super-high strength cold rolled steel belt suitable for rolling formation and manufacture method of super-high strength cold rolled steel belt
07/04/2012CN102534372A Preparation method of P110-grade expansion tube for exploiting petroleum and gas
07/04/2012CN102534371A Mg-containing steel plate for TMCP (Thermal Mechanical Control Processing) type E460 ultrahigh-strength ship structure and production method thereof
07/04/2012CN102534370A High-strength ultra-low carbon bake hardening steel plate and manufacturing process thereof
07/04/2012CN102534369A Method for preparing N80 steel-grade expansion tubes for petroleum and natural gas exploitation
07/04/2012CN102534368A Low-alloy high-strength wide and thin steel plate and production method thereof
07/04/2012CN102534367A Steel for superhigh-strength hot rolling automobile structure and preparation method thereof
07/04/2012CN102534366A Non-magnetic or weakly-magnetic high manganese steel balance block for compressor
07/04/2012CN102534365A Aluminum killed steel hot dip galvanized sheet and production method thereof
07/04/2012CN102534364A Production method capable of improving magnetic property of common grain-oriented silicon steel
07/04/2012CN102534363A Energy-saving and high-production-efficiency method for preparing common grain-oriented silicon steel
07/04/2012CN102534362A Preparation technology for fine-grained steel 510L
07/04/2012CN102534361A Hadfield steel and method for obtaining the same
07/04/2012CN102534360A Production method for cold-rolled thin strip steel plate for sliding rail
07/04/2012CN102534359A High-strength cold-rolled steel sheet excellent in coating adhesion, workability and hydrogen embrittlement resistance, and steel component for automobile
07/04/2012CN102534358A Manufacturing method of high-coercivity R-Fe-B sintered permanent magnet material
07/04/2012CN102534353A Low-chromium multi-component alloy cast ball and preparation method thereof
07/04/2012CN102534350A Manufacturing method of novel iron-base alloy target
07/04/2012CN102534349A Alloy steel powder for powder metallurgy, iron-based sintering material and manufacturing method thereof
07/04/2012CN102534166A Preparation method of J55-grade steel ERW (electric resistance welding) expansion pipe with high diameter expansion performance
07/04/2012CN102534157A Hot rolling method for high-efficiency and high-grade electrical sheet product
07/04/2012CN102534152A Rolling method capable of preventing pockmarks on surface of ship plate
07/04/2012CN102534149A Heat treatment process for rolling mill guide alloy
07/04/2012CN102528324A Alloy powder for manufacturing tubular welding wire and preparation method thereof
07/04/2012CN102528323A Alloy pipe wire produced by prefabricated alloy powder for overlaying welding of support roller and manufacture method of alloy pipe wire
07/04/2012CN102528040A Process method for manufacturing balance weight for compressor by powder metallurgy
07/04/2012CN102528016A Powdered alloy steel for metal injection molding and preparation method thereof
07/04/2012CN102527956A Continuous-cast P91-steel round pipe billet and production process thereof
07/04/2012CN102527892A Manufacturing method of martensitic stainless steel forged piece with high electric resistivity and high magnetic conductivity
07/04/2012CN102527724A Manufacturing method of alloy tubular product
07/04/2012CN102527722A Perforating and rolling equipment and method of high-alloy and hard-deformation seamless steel tube
07/04/2012CN102280241B Manufacturing process for iron-silicon-aluminum soft magnetic powder
07/04/2012CN102230126B Method for manufacturing micro motor magnet
07/04/2012CN102181800B Fire-resistant seamless steel pipe for building and machining method thereof
07/04/2012CN102127678B Method for producing hot rolled steel coil
07/04/2012CN102051541B Heat-resisting steel material and preparation method thereof
07/04/2012CN102051455B Heat-treatment process for low-temperature abrasion-resistant alloy cast steel
07/04/2012CN102029347B Manufacturing method of gear shaft forge piece for offshore drilling platform
07/04/2012CN101994066B Deformation induced maraging stainless steel and machining process thereof
07/04/2012CN101988172B High-strength shock-resistance steel bars and production method thereof
07/04/2012CN101985721B Method for preparing oriented silicon steel thin strip using aluminum nitride as inhibitor
07/04/2012CN101967610B High carbon high silicon martensite stainless steel billet and preparation method thereof
07/04/2012CN101967605B Carbide precipitation type rare earth carburizing steel
07/04/2012CN101967604B Boron-nitrogen composite microalloyecd steel allowing for high heat input welding and manufacturing method
07/04/2012CN101956144B Heat treatment method for manufacturing Martensitic-ferrite plastic mould steel
07/04/2012CN101935802B Method for producing 490MPa level acid-washing-free hot rolled steel plate
07/04/2012CN101935800B High-silicon-steel thin belt and preparation method thereof
07/04/2012CN101928884B X52 pipeline steel and production method thereof
07/04/2012CN101899621B 3Cr seamless steel pipe and production method thereof
07/04/2012CN101899618B X46 pipeline steel and preparation method thereof
07/04/2012CN101899617B X56 pipeline steel and production method thereof
07/04/2012CN101899614B Composite micro-alloying hot rolled steel plate containing V and Nb and preparation method thereof
07/04/2012CN101892370B Fe-Cr-Mn-N austenitic stainless steel with good hot workability and manufacturing method thereof
07/04/2012CN101886217B Medium-strength packaging steel strip and production method thereof
07/04/2012CN101880834B Cold roll with high abrasive resistance and high roughness retaining capability and manufacturing method thereof
07/04/2012CN101880831B High-strength-and-toughness low alloy wear resistant steel and manufacturing method thereof
07/04/2012CN101849026B Steel for weld construction having excellent high-temperature strength and low-temperature toughness and process for producing the steel
07/04/2012CN101831592B Shockproof strip material of nuclear power station steam generator, and preparation method thereof
07/04/2012CN101824578B production method of iron-based magnetostrictive alloy wire
07/04/2012CN101772583B Hot-rolled shape steel for ships and process for manufacturing the same
07/04/2012CN101755068B Steel pipes excellent in deformation characteristics and process for manufacturing the same
07/04/2012CN101748329B 610MPa automobile girder steel and production method thereof
07/04/2012CN101688272B Steel plate exhibiting excellent bendability by line heating and process for production of the plate
07/04/2012CN101680069B High carbon steel sheet superior in fatiugue lifeand manufacturing method thereof
07/04/2012CN101674861B Guide wire and stent
07/04/2012CN101649420B Ultra-strength, high toughness and low yield ratio steel and steel plate and manufacturing method thereof
07/04/2012CN101631880B Steel for tool-less hot forming or quenching with improved ductility
07/04/2012CN101617062B Electric resistance welded steel pipe for line pipe excelling in weld part toughness
07/04/2012CN101545072B Method for producing oriented silicon steel having high electromagnetic performance
07/04/2012CN101512032B Martensitic stainless steel for welded structure
07/04/2012CN101410194B Cold finish seamless steel pipe for drive shaft and method for producing the same
07/04/2012CN101379210B Iron-nickel-cobalt alloy
07/04/2012CN101356295B Steel sheet for continuous cast enameling with highly excellent unsusceptibility to fishscaling and process for producing the same
07/04/2012CN101353767B Spring wire rod excelling in fatigue characteristics
07/04/2012CN101346487B Cr-containing steel excellent in thermal fatigue characteristics
07/04/2012CN101316943B Steel for hot tooling, and part produced from said steel, method for the production thereof, and uses of the same
07/04/2012CN101208446B High-strength wire rod having superior rod drawability, and manufacturing method therefor
07/04/2012CN101166842B Oxygen activating material, combustion efficiency improving material, plant growth promoting material, aerobic microorganism activating material, animal growth promoting and activating material, myomalacia material, rust removal and rust-resisting material, and method of oxygen activation
07/04/2012CN101035921B High strength thin steel plate excellent in elongation and bore expanding characteristics and method for production thereof
06/2012
06/28/2012WO2012087045A2 Low iron loss high strength non-oriented electromagnetic steel sheet and method for manufacturing same
06/28/2012WO2012087028A2 Steel sheet for an oil sand slurry pipe having excellent abrasion resistance, corrosion resistance and low-temperature toughness and method for manufacturing same
06/28/2012WO2012087016A2 Grain-oriented electric steel sheet having superior magnetic property and method for manufacturing same
06/28/2012WO2012086706A1 Oil feed pipe and method for producing same
06/28/2012WO2012086578A1 Fe-pt ferromagnetic sputtering target and method for producing same
06/28/2012WO2012086534A1 Process for production of non-oriented electromagnetic steel sheet
06/28/2012WO2012086300A1 Sputtering target for magnetic recording film, and process for production thereof
06/28/2012WO2012083974A1 Heat treatment process for a manufacturing process of a drive belt metal ring component
06/28/2012WO2012083549A1 Die steel
06/28/2012WO2012059080A3 Ni-fe-cr-mo alloy
06/28/2012WO2011132107A3 Improvements in tubular solar collectors
06/28/2012US20120164453 Iron-based soft magnetic powder for dust core, preparation process thereof, and dust core
06/28/2012US20120160832 Gear part and method of producing thereof
06/28/2012US20120160376 Heat resistant cast steel, manufacturing method thereof, cast parts of steam turbine, and manufacturing method of cast parts of steam turbine
06/28/2012US20120160373 Forging heat resistant steel, manufacturing method thereof, forged parts and manufacturing method thereof
06/28/2012US20120160363 High manganese containing steels for oil, gas and petrochemical applications
06/28/2012DE102010056264A1 Producing steel element comprising zinc alloy coating, comprises stamping out blank from sheet metal coated with zinc alloy, heating stamped-out blank to temperature, and holding blank at this temperature for predetermined time
06/28/2012CA2822863A1 Steel sheet for an oil sand slurry pipe having excellent abrasion resistance, corrosion resistance, and low-temperature toughness and method for manufacturing same
06/28/2012CA2821087A1 Method of producing non-oriented electrical steel sheet
06/27/2012EP2469641A1 Dye-sensitized solar cell and method for manufacturing the same
06/27/2012EP2468911A1 Hot pressed member, steel sheet for hot pressed member, and method for producing hot pressed member