| Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120) |
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| 03/06/2013 | CN102953002A High-strength steel sheet excellent in seam weldability |
| 03/06/2013 | CN102953001A Cold-rolled steel sheet with tensile strength larger than 900 MPa and manufacturing method thereof |
| 03/06/2013 | CN102953000A Ultrahigh-strength steel plate and its manufacturing method |
| 03/06/2013 | CN102952999A Nuclear power station low-pressure heater steel and its making method |
| 03/06/2013 | CN102952998A 800MPa-grade hot-rolling transformation induced plasticity steel plate and its manufacturing method |
| 03/06/2013 | CN102952997A Wire rod for steel cord and its Al2O3 inclusion control method |
| 03/06/2013 | CN102952996A High-elongation cold-rolled TRIP (Transformation-Induced Plasticity) steel plate and preparation method thereof |
| 03/06/2013 | CN102952995A Environment-friendly leadless free-cutting steel and metallurgy method thereof |
| 03/06/2013 | CN102952994A Fire-resistant and earthquake-resistant steel for construction and production method thereof |
| 03/06/2013 | CN102952933A Process for improving Incoloy 800 alloy pipe corrosion resistance |
| 03/06/2013 | CN102952931A Glass-film-free oriented silicon steel manufacture method and annealing isolation agent |
| 03/06/2013 | CN102952921A Refining method of high-speed tool steel |
| 03/06/2013 | CN102950441A Production method for timing gear for engines |
| 03/06/2013 | CN102950436A Preparation method of gear for corrosion-resistant oil transfer pump |
| 03/06/2013 | CN102383022B Method for preparing high-TiC-content iron base metal ceramic material through combustion synthesis |
| 03/06/2013 | CN102330038B Environmentally friendly medium-carbon free cutting structural iron containing bismuth |
| 03/06/2013 | CN102330017B Production method of superthick steel plate by using continuous casting billet in condition of small compression ratio |
| 03/06/2013 | CN102312160B 12Cr2Mo1R steel plate for ultra-thick hydrogen-contacting equipment and production method thereof |
| 03/06/2013 | CN102304674B Austenitic stainless steel wire rod for welding |
| 03/06/2013 | CN102286704B Wear-resistant corrosion-resistant high-manganese steel and preparation method thereof |
| 03/06/2013 | CN102251172B Steel with favorable strength, plasticity, roughness, hardenability characteristic and cost performance as well as wide application |
| 03/06/2013 | CN102120262B Valve retainer |
| 03/06/2013 | CN102089451B Aluminum-plated steel sheet for hot pressing with rapid heating, process for producing same, and method of hot-pressing same with rapid heating |
| 03/06/2013 | CN102086497B Method for preparing high-Cr high-Ni oxidation-resistant heat-resistant steel formwork |
| 03/06/2013 | CN102066597B Steel material for dissimilar metal joining, joined body of dissimilar metals and process for joining dissimilar metal materials |
| 03/06/2013 | CN102046827B Method for manufacturing very high strength, cold-rolled, dual phase steel sheets, and sheets thus produced |
| 03/06/2013 | CN101952472B Steel alloy for a low alloy steel for producing high-tensile seamless steel tubing |
| 03/06/2013 | CN101655002B Oil layer-section oil casing pipe for exploiting thick oil by method of combustion drive and production method thereof |
| 03/06/2013 | CN101528968B Method for manufacturing flat steel products from a multiphase steel alloyed with silicon |
| 03/05/2013 | US8389128 High tensile-strength galvanized steel sheet and process for manufacturing high tensile-strength galvanized steel sheet |
| 03/05/2013 | US8388889 Heat-resistant, austenitic cast steel and exhaust member made thereof |
| 03/05/2013 | US8388771 High strength steel sheet having excellent formability |
| 03/05/2013 | US8388770 Cold-rolled steel sheet, method of producing the same, battery, and method of producing the same |
| 03/05/2013 | CA2757223C Steel for welded structure and producing method thereof |
| 02/28/2013 | WO2013027841A1 Heat-resisting steel for exhaust valves |
| 02/28/2013 | WO2013027779A1 Thick-walled electric-resistance-welded steel pipe and process for producing same |
| 02/28/2013 | WO2013027676A1 Untempered steel for hot forging having excellent machinability |
| 02/28/2013 | WO2013027666A1 Steel oil well pipe having excellent sulfide stress cracking resistance |
| 02/28/2013 | WO2013027665A1 Semi-hard magnetic material and theft-prevention magnetic sensor using same and method of manufacturing semi-hard magnetic material |
| 02/28/2013 | WO2013027253A1 Boron-containing stainless steel having excellent hot workability and excellent surface properties |
| 02/28/2013 | US20130048161 High strength press-formed member and method for manufacturing the same |
| 02/28/2013 | US20130048159 High-strength and high-toughness ultrafine wire rod and method for producing same |
| 02/28/2013 | US20130048158 Spring steel and method for manufacturing the same |
| 02/28/2013 | US20130048156 Case hardening steel and manufacturing method thereof |
| 02/28/2013 | US20130048151 Ultra high strength cold rolled steel sheet having excellent bendability |
| 02/28/2013 | US20130048150 Method for producing workpieces from lightweight steel having material properties that are adjustable across the wall thickness |
| 02/28/2013 | US20130047787 Carbon-material-containing iron oxide briquette composition, method for producing the same, and method for producing direct reduced iron using the same |
| 02/28/2013 | US20130047786 Processable High Thermal Neutron Absorbing Fe-Base Alloys |
| 02/28/2013 | DE19908407B4 Hochfeste Ventilfeder und Verfahren zu ihrer Herstellung High-strength valve spring and process for their preparation |
| 02/28/2013 | DE112007000273B4 Korrosionsbeständiges magnetisches Bauteil für ein Kraftstoffeinspritzventil A corrosion-resistant magnetic component for a fuel injection valve |
| 02/28/2013 | DE10244972B4 Wärmefester Stahl und Verfahren zur Herstellung desselben Of the same heat-resistant steel and methods for making |
| 02/28/2013 | DE102011081482A1 Annealed ferritic material useful for valve seat rings and turbocharger components, comprises carbon, chromium, molybdenum, vanadium, silicon, manganese, iron, production-related impurities and other elements |
| 02/28/2013 | DE102004018406B4 Kaltgeformte Feder von hoher Ermüdungsfestigkeit und hoher Korrosionsermüdungsfestigkeit, Stahl für eine solche Feder und Verfahren zur Herstellung einer solchen Feder Cold-formed spring from high fatigue strength and high corrosion fatigue strength, steel for such a spring and method for manufacturing such a spring |
| 02/28/2013 | CA2843593A1 Oil-well steel pipe having excellent sulfide stress cracking resistance |
| 02/28/2013 | CA2832021A1 Thick wall electric resistance welded steel pipe and method of production of same |
| 02/27/2013 | EP2562286A1 High strength hot-dip galvanized steel sheet with superior workability and production method therefor |
| 02/27/2013 | EP2562285A1 Austenitic-ferritic stainless steel |
| 02/27/2013 | EP2562284A1 Cr-CONTAINING STEEL PIPE FOR LINE PIPE AND HAVING EXCELLENT INTERGRANULAR STRESS CORROSION CRACKING RESISTANCE AT WELDING-HEAT-AFFECTED PORTION |
| 02/27/2013 | EP2562283A1 Steel component having excellent temper softening resistance |
| 02/27/2013 | EP2562272A2 Method for producing steel product having excellent mechanical properties, steel product produced with the method and its use |
| 02/27/2013 | EP2561286A2 Improvements in tubular solar collectors |
| 02/27/2013 | CN202755989U Stand column used for hydraulic support |
| 02/27/2013 | CN102947476A Cold-rolled thin steel sheet having excellent shape fixability, and process for production thereof |
| 02/27/2013 | CN102947471A Oriented electromagnetic steel plate production method |
| 02/27/2013 | CN102947116A Oil feed pipe and process for producing same |
| 02/27/2013 | CN102945719A High-performance ferric-based nano-crystalline soft magnetic alloy and preparation method thereof |
| 02/27/2013 | CN102943269A High temperature carburizing quenching novel technology |
| 02/27/2013 | CN102943220A Nickel-saving austenitic stainless steel and fabrication method thereof |
| 02/27/2013 | CN102943219A Nickel-saving austenitic stainless steel containing manganese, nitrogen and boron and fabrication method |
| 02/27/2013 | CN102943218A Steel 27Cr2Ni3SiMn2Mo for spinner roller and preparation technology thereof |
| 02/27/2013 | CN102943217A Cold rolling steel strip and production method thereof |
| 02/27/2013 | CN102943216A Mold steel used for hot-forging mold-pressing casting mold |
| 02/27/2013 | CN102943215A Backing material for double metal composite saw blade, and preparation method thereof |
| 02/27/2013 | CN102943214A Automotive cold-rolled diaphragm spring steel and production method thereof |
| 02/27/2013 | CN102943213A Abrasion-resistant steel for low-alloy ultra-high strength engineering machine and preparation method thereof |
| 02/27/2013 | CN102943212A NM500 high-strength wear-resistant steel plate and heat treatment technique thereof |
| 02/27/2013 | CN102943211A Method for manufacturing high-carbon martensitic stainless steel bands |
| 02/27/2013 | CN102943210A High-strength bolt and processing method thereof |
| 02/27/2013 | CN102943209A Radiation-resistant martensite heat-resistant steel having excellent compatibility with Pb and Pb-Bi |
| 02/27/2013 | CN102943208A Novel super-hard super-tough high speed steel |
| 02/27/2013 | CN102943207A High-strength fastener and processing method thereof |
| 02/27/2013 | CN102943206A High-strength hot rolled steel strip with improved zonal structure by manganese reduction and manufacturing method thereof |
| 02/27/2013 | CN102943205A Ferrite/bainite hot-rolled dual-phase steel with tensile strength level of 580MPa and preparation method thereof |
| 02/27/2013 | CN102943204A Yield strength 1100MPa level engineering machinery non-quenched and tempered hot rolled strip and preparation method thereof |
| 02/27/2013 | CN102943203A Hot-rolled H-section steel having yield strength in 700MPa level and preparation method thereof |
| 02/27/2013 | CN102943202A Fe-Al-B magnetostrictive thin piece material and preparation method thereof |
| 02/27/2013 | CN102943201A Production method of low-strength cold forging steel not requiring heat treatment |
| 02/27/2013 | CN102943200A Method for producing low-carbon thin pickling steel with yield ratio less than or equal to 0.8 through CSP (cast steel plate) process |
| 02/27/2013 | CN102943169A Quenching and annealing preparation method of ultrahigh-strength thin steel plate for automobiles |
| 02/27/2013 | CN102941347A Method for manufacturing rotating shuttle door wrench by utilizing flow temperature-pressure molding method |
| 02/27/2013 | CN102941346A Preparation method of powder metallurgy forming of multi-way valve body |
| 02/27/2013 | CN102941345A Method for manufacturing outer shuttle of rotating shuttle by injection molding |
| 02/27/2013 | CN102941335A Vacuum suction casting device, formula and preparation method for AlNiCo permanent-magnet alloy casting |
| 02/27/2013 | CN102409250B Steel for rock drilling tool and preparation method thereof |
| 02/27/2013 | CN102312176B Method for adding nitrogen into stainless steel used for thermonuclear fusion reactor |
| 02/27/2013 | CN102284612B Special mold for F-type cover plate cold-bending formation |
| 02/27/2013 | CN102277538B Tin-containing ferrite stainless steel plate and manufacturing method thereof |
| 02/27/2013 | CN102268615B Engineering steel material with excellent core low-temperature impact toughness and lamellar tearing resisting performance and production method thereof |
| 02/27/2013 | CN102268608B Large capacity high pressure gas cylinder steel and production method thereof |
| 02/27/2013 | CN102268600B Automobile compressed natural gas (CNG) bottle steel and production method thereof |