Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120)
04/2013
04/17/2013CN103045956A Economical heat-resisting austenitic stainless steel
04/17/2013CN103045955A Metal mould material for centrifugal casting
04/17/2013CN103045954A Metal mould material for centrifugal casting
04/17/2013CN103045953A Heat-aging-resistant duplex stainless steel and fabrication method thereof
04/17/2013CN103045952A Alloy material of energy absorption crushing steel cylinder in deformation unit and production method of alloy material
04/17/2013CN103045951A High-nitrogen nickel-free austenite antibacterial stainless steel (HNSAg) and manufacturing method thereof
04/17/2013CN103045950A Low-alloy, high-strength and high-toughness composite phase steel and heat treatment method thereof
04/17/2013CN103045949A Large marine high strength corrosion-resistant stainless-steel exhaust valve seat with internal orifice diameter of larger than 220 mm
04/17/2013CN103045948A High-chromium steel and manufacturing method thereof
04/17/2013CN103045947A Manufacturing method of high-strength and high-toughness gear steel
04/17/2013CN103045946A Steel for high-titanium alloy welding wire and preparation method thereof
04/17/2013CN103045945A Economical fabrication method of high-toughness X70 pipeline hot rolled steel plate coil
04/17/2013CN103045944A High-toughness steel for petroleum casing and manufacturing method of petroleum casing
04/17/2013CN103045943A Smelting method of corrosion-resistant soft magnetic alloy material
04/17/2013CN103045942A Method for manufacturing extremely thick marine engineering steel plate with excellent low-temperature brittle fracture resistance
04/17/2013CN103045941A High-strength and high-toughness dual-phase steel and heat treatment method thereof
04/17/2013CN103045940A Non-quenched and tempered steel applicable to piston rod of oil cylinder of bulldozer
04/17/2013CN103045939A Resource-saving Q345 low-alloy series steel plate and production method thereof
04/17/2013CN103045938A Method for smelting low-strength cold heading steel
04/17/2013CN103045937A Secondary cold rolled steel and production method thereof
04/17/2013CN103045936A Method for producing Q345-level medium steel plate in alloy reduction manner
04/17/2013CN103045935A Control method for surface decarburization and ferrite distribution of steel disc bar of spring
04/17/2013CN103045929A Method for producing ferrovanadium by aluminothermic process
04/17/2013CN103045928A Method for producing ferrovanadium by aluminothermic process
04/17/2013CN103045833A Steel plate and galvanizing steel plate, and preparation method thereof
04/17/2013CN103045782A Manufacturing process of cast steel cavity water-cooled furnace bosh cooling plate
04/17/2013CN103045177A La(Fe,Si)13 based magnetic refrigeration material by taking high-Ce industrial pure mixed rare earth as raw material as well as preparation method and application thereof
04/17/2013CN103042364A Automobile air-conditioning compressor piston production method
04/17/2013CN103042195A Extrusion casting manufacture method of piston with reinforced pseudo-alloy circular groove
04/17/2013CN103042144A Method for forging automobile engine crankshaft
04/17/2013CN103042039A Controlled rolling and cooling process for Cr-containing economic X70 pipeline hot-rolled steel coil plate
04/17/2013CN103042028A Method for rolling H-shaped steel with stable impact energy
04/17/2013CN102409227B Hot rolled strip steel with low relative magnetic permeability and preparation method thereof
04/17/2013CN102383065B High-performance valve steel
04/17/2013CN102251190B Cr-Mo-Ni-Ti-V sealing ring of turbocharger
04/17/2013CN102251084B Heat treatment process of steel forging for hydraulic cylinder of deep-sea oil recovery equipment
04/17/2013CN102181776B Technique and device for producing high-grade nickel and stainless steel by reduction pelletization
04/17/2013CN102134684B Method for casting wear resistance metal material, wear resistance metal material and secondary cyclone shell made by same
04/17/2013CN102134628B Smelting method of low-carbon aluminium killed steel with low silicon content
04/17/2013CN102094153B Preparation method of high-strength high-toughness alloy steel for bolts
04/17/2013CN101410542B High-strength seamless steel pipe for mechanical structure which has excellent toughness and weldability, and method for manufacture thereof
04/17/2013CN101307518B Metal fiber ply yarn and method for making same
04/17/2013CN101125472B Hot-dip galvanized thin steel sheet, thin steel sheet processed by hot-dip galvanized layer, and a method of producing the same
04/16/2013USRE44153 Coated hot- and cold-rolled steel sheet comprising a very high resistance after thermal treatment
04/16/2013CA2748188C Stainless steel flux-cored welding wire for welding of zinc-coated steel sheet and arc welding method of zinc-coated steel sheet using same
04/11/2013WO2013051714A1 Steel plate and method for producing same
04/11/2013WO2013051513A1 Steel wire for bolt, bolt, and manufacturing processes therefor
04/11/2013WO2013051270A1 Annealing separator agent for grain-oriented electromagnetic steel sheet
04/11/2013WO2013051249A1 Welded steel pipe with excellent welding heat-affected zone toughness, and process for producing same
04/11/2013WO2013051238A1 High-strength steel sheet and method for manufacturing same
04/11/2013WO2013051232A1 Method for joining sheet bar during continuous hot rolling
04/11/2013WO2013051231A1 High-tensile steel plate giving welding heat-affected zone with excellent low-temperature toughness, and process for producing same
04/11/2013WO2013051160A1 High-strength hot-dipped galvanized steel sheet having excellent formability and impact resistance, and method for producing same
04/11/2013WO2013050397A1 Steel product with improved e-modulus and method for producing said product
04/11/2013US20130087257 Ultra high strength cold rolled steel sheet having excellent ductility and delayed fracture resistance and method for manufacturing the same
04/11/2013US20130087256 Steel wire with high strength for cold forging to improve service life of mold and method of manufacturing the same
04/11/2013US20130087254 High strength hot-rolled steel sheet having excellent stretch-flange formability and method for manufacturing the same
04/11/2013US20130087253 High strength steel sheet and method for manufacturing the same
04/11/2013US20130087252 High-strength hot-rolled steel sheet having excellent formability and method for manufacturing the same
04/11/2013US20130087250 Steel for nitriding and nitrided part
04/10/2013EP2578719A1 Hot dipped aluminum alloy coated steel material with excellent cut edge surface corrosion resistance and processed part corrosion resistance, and method for producing same
04/10/2013EP2578718A1 High-strength molten-zinc-plated steel sheet having excellent bendability and weldability, and process for production thereof
04/10/2013EP2578717A1 Steel for nitriding purposes, and nitrided member
04/10/2013EP2578716A1 Steel rail and production method thereof
04/10/2013EP2578715A1 Structural stainless steel sheet having excellent corrosion resistance in welded part, and method for producing same
04/10/2013EP2578714A1 Hot-rolled high-strength steel sheet and process for production thereof
04/10/2013EP2578713A1 Seamless steel pipe for line pipe and method for producing the same
04/10/2013EP2578712A1 Electric-resistance-welded steel pipe with excellent torsion fatigue resistance and process for producing same
04/10/2013EP2578711A1 Steel sheet, and process for production thereof
04/10/2013EP2578706A1 Process for production of unidirectional electromagnetic steel sheet
04/10/2013EP2578705A1 Process for producing steel pipe for air bag
04/10/2013EP2578338A1 Soft magnetic powder, powder granules, dust core, electromagnetic component, and method for producing dust core
04/10/2013EP2578202A2 Metal alloy for fusion of dental ceramics, and dental prosthesis
04/10/2013EP2576852A2 Alloys exhibiting spinodal glass matrix microconstituents structure and deformation mechanisms
04/10/2013EP2576849A1 Profiled wire made of hydrogen-embrittlement-resistant steel having high mechanical properties
04/10/2013EP2576104A1 Nitrided sintered steels
04/10/2013CN103038398A Steel sheet for hot stamping, and process for manufacturing hot-stamped steel products using steel sheet for hot stamping
04/10/2013CN103038383A Hot-rolled steel sheet, cold-rolled steel sheet, galvanized steel sheet, and processes for producing these
04/10/2013CN103038382A Ultra-high-strength steel bar and method for manufacturing same
04/10/2013CN103038381A Steel sheet, and process for production thereof
04/10/2013CN103032635A Method of manufacturing mineral slurry delivery pipeline which is anti-erosion and anti-wear
04/10/2013CN103032145A Vehicle exhaust system
04/10/2013CN103031500A Large-diameter flange and preparation process thereof
04/10/2013CN103031499A Iron-based sintered sliding member and production method therefor
04/10/2013CN103031498A Manufacture method of extremely thick ocean engineering steel plate with low compression ratio and super high-strength strain age
04/10/2013CN103031497A Preparation method of corrosion-resistant iron alloy for fasteners
04/10/2013CN103031496A Cast steel roller and fabrication technology thereof
04/10/2013CN103031495A Mold casting method for hollow axle steel of high-speed passenger train
04/10/2013CN103031494A Wear-resistant steel and production method thereof
04/10/2013CN103031493A 650MPa-level low-Si Cr-containing hot-rolled dual phase steel plate and manufacturing method thereof
04/10/2013CN103031492A High-toughness steel for gas cylinders and smelting method thereof
04/10/2013CN103031491A Chromium-free micro-molybdenum high-strength high heat input steel plate and manufacturing method thereof
04/10/2013CN103031490A Production method for controlling fault detection defect of medium thick plate Q345 steel
04/10/2013CN103031489A Production method of Q345B steel plate
04/10/2013CN103031488A Manufacturing method of hot rolled steel and hot rolled steel
04/10/2013CN103031487A Composition design and processing methods of high strength, high ductility, and high corrosion resistance femnalc alloys
04/10/2013CN103031486A High-carbon and medium-carbon large-diameter forged grinding ball and production process thereof
04/10/2013CN103031484A Method for smelting vanadium iron
04/10/2013CN103031483A Production process of copper-containing steel
04/10/2013CN103031482A Manganese alloying method for duplex stainless steel
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