Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120) |
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11/17/2010 | CN101886222A Method for manufacturing high-strength X90 steel grade spiral submerged arc welded pipe |
11/17/2010 | CN101886221A Micro-alloy ultra-fine grained hot rolled steel plate and production method thereof |
11/17/2010 | CN101886220A Hot continuous rolling steel plate for cold forming and production method thereof |
11/17/2010 | CN101886219A Particle-reinforced antiwear steel composite material and preparation method thereof |
11/17/2010 | CN101886218A Steel making method of J55-grade 37Mn5 oil casing pipe |
11/17/2010 | CN101886217A Medium-strength packaging steel strip and production method thereof |
11/17/2010 | CN101886216A Preparation method of Fe-6.5% Si alloy magnetic powder core with small amount of P |
11/17/2010 | CN101886215A Short-flow high-efficiency preparation method of thin high-silicon electrical steel strip |
11/17/2010 | CN101886214A Electromagnetic wave absorbing material |
11/17/2010 | CN101886213A Ultra-disperse structure complex phase alloy steel and preparation method thereof |
11/17/2010 | CN101886204A Manufacture method of multi-element alloying heat and wear resisting high-chromium steel casting |
11/17/2010 | CN101886192A Method for preparing high-performance iron nickel magnetically soft alloy by using powder metallurgy process |
11/17/2010 | CN101886171A Method for enriching nickel by pre-reducing carbon-contained pellets of laterite nickel ore |
11/17/2010 | CN101884945A Hammer head for crusher and processing method thereof |
11/17/2010 | CN101413091B Novel easy-to-cut stainless steel 303B and manufacturing method thereof |
11/17/2010 | CN101368251B Steel plate for large-thickness hydrogen-contacting equipment and its production technology |
11/17/2010 | CN101333631B Austenitic stainless steel clad tube and technique of preparing the same |
11/17/2010 | CN101316674B Process for producing rare-earth permanent magnet material |
11/17/2010 | CN101285154B Iron-chromium-cobalt permanent magnetic alloy compounding vanadium and tungsten and deformation processing technology thereof |
11/17/2010 | CN101186992B Nitrizing quenching product and its preparation method |
11/17/2010 | CN101146917B Method of manufacturing martensitic stainless steel |
11/17/2010 | CN101121992B Method for producing strong annealed steel hot-rolled sheet coil |
11/17/2010 | CN101096789B Fabrication technology of yarn making piece |
11/17/2010 | CN101090987B High-strength four-phase steel alloys |
11/16/2010 | US7833363 Steel containing C 0.1% to 0.5%; Si + Al 0.5% to 3%; Mn 0.5% to 3%; P 0.15% or less; S 0.02% or less; superior in elongation and also in the balance of strength and reduction of area even if the working ratio is set high; single heat treatment, forging, tempering, quenching |
11/16/2010 | CA2552963C Hot dip galvanized high strength steel sheet excellent in plating adhesion and hole expandability and method of production of same |
11/16/2010 | CA2502206C Stainless steel for high pressure hydrogen gas, vessel and equipment comprising the steel |
11/16/2010 | CA2409896C Austenitic alloy |
11/11/2010 | WO2010128545A1 High‑strength stainless steel pipe |
11/11/2010 | US20100284849 Austenitic cast iron and manufacturing process for the same, austenitic-cast-iron cast product and component part for exhaust system |
11/11/2010 | US20100282376 Ultra soft high carbon hot rolled steel sheet and method for manufacturing same |
11/11/2010 | US20100282374 Galvanized or galvannealed silicon steel |
11/11/2010 | US20100282372 High-strength stainless steel material and production process of the same |
11/10/2010 | EP2248925A1 Steel for machine structural use with excellent machinability |
11/10/2010 | EP2248919A1 High corrosion-resistant, high-strength and non-magnetic stainless steel, high corrosion-resistant, high-strength and non-magnetic stainless steel product and method for producing the same |
11/10/2010 | EP2248918A1 Austenitic stainless steel and process for hydrogen removal thereof |
11/10/2010 | EP2248617A2 Iron powder coated with Mg-containing oxide film |
11/10/2010 | EP2247833A1 A movable wall member in form of an exhaust valve spindle or a piston for an internal combustion engine, and a method of manufacturing such a member |
11/10/2010 | EP2247764A1 Rail steel with an excellent combination of wear properties and rolling contact fatigue resistance |
11/10/2010 | EP2247761A1 Method of making a high strength, high toughness, fatigue resistant, precipitation hardenable stainless steel |
11/10/2010 | CN101883875A High-strength steel sheet with excellent low temperature toughness and manufacturing method thereof |
11/10/2010 | CN101883874A High-strength untempered steel for fracture splitting and steel component for fracture splitting |
11/10/2010 | CN101883873A Steel for fracture split connecting rods |
11/10/2010 | CN101880858A Ferrocobalt magnetic sputtering target with high magnetic flux and manufacture method thereof |
11/10/2010 | CN101880839A Process for producing wear-resistance high-manganese steel through suspension casting |
11/10/2010 | CN101880838A Steel and car coupler made of steel |
11/10/2010 | CN101880837A Method for preparing steel |
11/10/2010 | CN101880836A Boron-containing die steel and heat treatment method thereof |
11/10/2010 | CN101880835A Seawater corrosion resistant ultra-low carbon bainite steel and preparation method thereof |
11/10/2010 | CN101880834A Cold roll with high abrasive resistance and high roughness retaining capability and manufacturing method thereof |
11/10/2010 | CN101880833A Stainless bearing steel adopting microalloying of rare earth and applicable to manufacturing miniature and small-size bearings and manufacturing method thereof |
11/10/2010 | CN101880832A Low-cost high-strength prepainted steel sheet and manufacture method thereof |
11/10/2010 | CN101880831A High-strength-and-toughness low alloy wear resistant steel and manufacturing method thereof |
11/10/2010 | CN101880830A Steel with Brinell hardness of 430-470 for cutting edge and production method thereof |
11/10/2010 | CN101880829A Novel magnesium alloy hot die steel |
11/10/2010 | CN101880828A Preparation method of low-alloy manganese martensite wear resistant cast steel |
11/10/2010 | CN101880827A IF steel with delta r less than or equal to 0.3 and production method thereof |
11/10/2010 | CN101880826A Non-hardened bainite cold heading steel for fastener and manufacturing method thereof |
11/10/2010 | CN101880825A Ultrafine grained hot rolled dual-phase steel with tensile strength of above 750MPa and manufacturing method of plate thereof |
11/10/2010 | CN101880824A Q345q-series super-thick bridge steel plate and production method thereof |
11/10/2010 | CN101880823A Hot rolled niobium micro-alloyed multi-phase steel and preparation method thereof |
11/10/2010 | CN101880822A Hot rolled high-ductility carbon steel for passenger traffic steel rails |
11/10/2010 | CN101880821A Steel-aluminum compound hot rolled steel with tensile strength of 280MPa and production method thereof |
11/10/2010 | CN101880820A Steel-aluminum compound hot rolled steel with tensile strength of 310MPa and production method thereof |
11/10/2010 | CN101880819A Steel-aluminum compound hot rolled steel with tensile strength of 340MPa and production method thereof |
11/10/2010 | CN101880818A Preparation method of X80 bent pipe and steel for pipe fittings |
11/10/2010 | CN101880817A Electromagnetic wave absorbing material formed by planar 2:17 rare earth-3d transition intermetallic compounds |
11/10/2010 | CN101465406B High-performance polycrystal texture Fe-Ga-based magnetic deformation slice material and preparation method thereof |
11/10/2010 | CN101445890B Novel high-strength and low-magnetic steel |
11/10/2010 | CN101400814B Low-carbon resulfurized free-cutting steel material |
11/10/2010 | CN101381843B 5Cr5MoWSiV cold roller heat treatment method |
11/10/2010 | CN101338402B Method for manufacturing copper-containing ferrite antimicrobial stainless steel belt |
11/10/2010 | CN101311292B Novel anti-scaffolding heat-resisting alloy, hearth roll of stainless steel normalizing furnace and production process thereof |
11/10/2010 | CN101270454B Turbine casing |
11/10/2010 | CN101258259B A maraging steel article and method of manufacture |
11/10/2010 | CN101215677B Resource-saving high-nitrogen super diphase stainless steel alloy material and preparation method thereof |
11/10/2010 | CN101033536B Carburized machine parts |
11/09/2010 | US7829202 Large-heat-input butt welded joints having excellent brittle fracture resistance |
11/09/2010 | US7828912 High-strength hot-rolled steel shaft excellent in hole expandability and ductility and production method thereof |
11/09/2010 | CA2559587C Hot dip galvanized composite high strength steel sheet excellent in shapeability and hole enlargement ability and method of production of same |
11/04/2010 | WO2010126268A2 High manganese nitrogen-containing steel sheet having high strength and high ductility, and method for manufacturing same |
11/04/2010 | WO2010126161A1 High-strength hot-dip zinc-coated steel sheet having excellent workability, weldability and fatigue properties, and process for production thereof |
11/04/2010 | WO2010125848A1 Cold-rolled steel sheet with excellent formability, shape retentivity, and surface appearance and process for producing same |
11/04/2010 | WO2010125841A1 Ferritic heat-resistant cast steel and exhaust system component |
11/04/2010 | US20100278684 Process for manufacturing stainless steel containing fine carbonitrides, and product obtained from this process |
11/04/2010 | US20100278681 Low alloyed steel powder |
11/04/2010 | US20100276955 Treatment of railway wheels |
11/04/2010 | US20100276038 Martensitic stainless steel, method for making parts from said steel and parts thus made |
11/04/2010 | CA2759913A1 High strength galvanized steel sheet having excellent formability, weldability, and fatigue properties and method for manufacturing the same |
11/03/2010 | EP2246456A1 High-strength steel sheet and process for production thereof |
11/03/2010 | EP2246455A1 High-purity ferritic stainless steel excellent in corrosion resistance and workability and process for production of the same |
11/03/2010 | EP2246454A1 Carburization-resistant metal material |
11/03/2010 | EP2246453A1 Ferrite-austenite stainless steel sheet for structural members excellent in workability and impact absorption characteristics and process for the production of the sheet |
11/03/2010 | EP2246452A1 Alloy to be surface-coated and sliding members |
11/03/2010 | EP2246451A1 Hot-forging microalloyed steel and hot-rolled steel material each having excellent fracture splittability and machinability, and hot-forging microalloyed steel part |
11/03/2010 | EP2246450A1 Steel sheets and process for manufacturing the same |
11/03/2010 | EP2245296A1 Structural part, especially motor vehicle component, made of a dual-phase steel |
11/03/2010 | EP2245203A1 Austenitic stainless steel sheet and method for making said sheet |
11/03/2010 | EP2245202A1 Austenitic stainless steel low in nickel containing stabilizing elements |
11/03/2010 | EP2245201A1 High-strength, low-alloy steel for seamless pipes with outstanding weldability and corrosion resistance |