Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120)
01/2004
01/03/2004WO2004005567A1 Sulfur free cutting steel for machine structural use
01/02/2004EP1376625A2 Magnetic particle and its production method
01/02/2004EP1375841A2 powder metal valve seat insert
01/02/2004EP1375820A1 Steel pipe for use as embedded expanded pipe, and method of embedding oil-well steel pipe
01/02/2004EP1375694A1 Hot-rolled steel strip and method for manufacturing the same
01/02/2004EP1375693A1 Grain oriented electromagnetic steel sheet exhibiting extremely small watt loss and method for producing the same
01/02/2004EP1375689A1 Member having separation structure and method for manufacture thereof
01/02/2004EP1375683A1 High strength steel tube for air bag and method for production thereof
01/02/2004EP1375681A2 High-strength high-toughness steel , method for producing the same and method for producing high-strength high-toughness steel pipe
01/02/2004EP1374655A2 A steel plate and a hot dip galvanizing steel plate having superior electric and magnetic shielding property
01/02/2004EP1373590A1 Ultra-high-strength precipitation-hardenable stainless steel and elongated strip made therefrom
01/02/2004EP1373589A1 Steel and steel tube for high-temperature use
01/02/2004EP1373587A1 Nickel-aluminide based wear resistant material for piston rings
01/02/2004EP1372754A1 Radiopaque alloy stent
01/01/2004US20040000360 Non-heat treated crankshaft
01/01/2004US20040000283 Powder metal valve seat insert
12/2003
12/31/2003WO2004001084A1 High-strength cold rolled steel sheet and process for producing the same
12/31/2003WO2004001083A1 Steel for crude oil tank and method for manufacture thereof, crude oil tank and method for protecting corrosion thereof
12/31/2003WO2004001082A1 Stainless-steel pipe for oil well and process for producing the same
12/31/2003WO2004001081A1 Steel belt comprising martensitic steel and method for manufacturing hoop for continuously variable transmission using said steel belt
12/31/2003WO2004001076A1 Oil well steel pipe excellent in crushing resistance characteristics after pipe expansion
12/31/2003WO2004001075A1 Method for producing electric steel
12/31/2003CN1465076A Method for producing nanocomposite magnet using atomizing method
12/31/2003CN1465075A Production method for conductive paste and production method for printed circuit board
12/31/2003CN1464915A Thin alloy sheet of low thermal expansion and shadow mask using the same
12/31/2003CN1464914A Unidirectional silicon steel sheet of ultra low iron loss and method for production thereof
12/31/2003CN1463899A High-strength packaging steel band and thermal treatment process thereof
12/31/2003CN1133182C 富含镨的铁-硼-稀土组分和其制的永磁铁及其制造方法 Praseodymium-rich iron - boron - rare earth component and its system of permanent magnet and its manufacturing method
12/31/2003CN1132960C 耐污染的研磨加工不锈钢板及其制造方法 Resistant to pollution of polished stainless steel sheet and manufacturing method thereof
12/31/2003CN1132958C High-performance refractory weather-resisting building steel and its production method
12/31/2003CN1132957C Powder sintering process of producing permanent-magnet Al-Ni-Co-Ti alloy
12/31/2003CN1132956C Color kinescope
12/31/2003CA2490700A1 Oil country tubular goods excellent in collapse characteristics after expansion and method of production thereof
12/30/2003US6670048 Sintered sprocket
12/30/2003US6669789 Method for producing titanium-bearing microalloyed high-strength low-alloy steel
12/30/2003CA2292707C Improved system for processing, storing, and transporting liquefied natural gas
12/25/2003WO2003106728A1 Cold work steel and cold work tool
12/25/2003WO2003106727A1 Steel and mould tool for plastic materials made of the steel
12/25/2003US20030233911 Pre-alloyed iron based powder
12/25/2003US20030233910 Contains iron as a main component, carbon, silicon, chromium, molybdenum, cobalt, maganese, lead, vanadium, advantageously boron nitride, and tungsten; strength, wear resistance improved by a sub-zero treatment
12/24/2003WO2003106726A1 Steel sheet for vitreous enameling and production method
12/24/2003WO2003106725A1 FERRITIC STAINLESS STEEL PLATE WITH Ti AND METHOD FOR PRODUCTION THEREOF
12/24/2003WO2003106724A1 Steel excellent in machinability
12/24/2003WO2003106723A1 High strength cold rolled steel plate and method for production thereof
12/24/2003WO2003106722A1 Heat-resistant ferritic stainless steel and method for production thereof
12/24/2003WO2003106721A1 Low-thermal expansion alloy thin sheet and its manufacturing method
12/24/2003WO2003106720A1 Low-thermal expansion alloy thin sheet and its manufacturing method
12/24/2003WO2003106718A1 Hard metallic materials, hard metallic coatings, methods of processing metallic materials and methods of producing metallic coatings
12/24/2003WO2003106079A1 Prealloyed iron-based powder, a method of producing sintered components and a component
12/24/2003WO2003069000A3 Bulk-solidifying high manganese non-ferromagnetic amorphous steel alloys and related method of using and making the same
12/24/2003CN1463301A Electromagnetic sheet having insulating coating and insulating coating
12/24/2003CN1463297A Highly stable, steel and steel strips or steel sheets cold-formed, method for prodn. of steel strips and uses of said steel
12/24/2003CN1463296A Metal material having good resistance to metal dusting
12/24/2003CN1463295A Iron-based alloy and method for production thereof
12/24/2003CN1132256C Non-aqueous electrolyte electrochemical cell
12/24/2003CN1132197C Bonded magnet with low losses and easy saturation
12/24/2003CN1131982C 用于液化天然气的改进的多组分致冷方法 A method for improving a multi-component refrigeration of LNG
12/24/2003CA2489488A1 Prealloyed iron-based powder, a method of producing sintered components and a component
12/24/2003CA2488793A1 Cold work steel and cold work tool
12/23/2003US6667105 Aluminum phosphate solution, acid-soluble emulsion type acrylic-styrenic copolymer resin, zinc nitrate, silicon additive, ethylene glycol and a nonionic surfactant
12/23/2003US6667005 For use in shafts of machines such as printers
12/23/2003US6666932 Suitable for automotive chassis parts
12/23/2003US6666931 Rolling part and power transmission part
12/23/2003CA2299430C Metallurgical method for processing nickel- and iron-based superalloys
12/18/2003WO2003104563A1 Welding of an element of a track unit and a rail section without adding any material
12/18/2003WO2003104499A1 Method for producing cold rolled steel plate of super high strength
12/18/2003US20030231976 Austenitic stainless steel tube consists of prefered mass % of carbon, silicon, manganese, chromium, nickel, titanium, niobium, aluminum, nitrogen, oxygen and balance iron and impuriites; high temperature strength, corrosion resistance
12/18/2003US20030231975 Dry self-lubricating dense material; a mechanical part formed from said material; a method of manufacturing said material
12/18/2003US20030230164 Iron-based sintered alloy for use as valve seat and its production method
12/17/2003EP1371863A1 High-strength bolt excellent in delayed fracture resistance characteristics and its steel product
12/17/2003EP1371743A1 Electric welded steel tube for hollow stabilizer
12/17/2003EP1371742A1 Dry and self lubricant material,mechanical pieces made of a such material and its method of fabrication
12/17/2003EP1371434A1 Iron base rare earth alloy powder and compound comprising iron base rare earth alloy powder, and permanent magnet using the same
12/17/2003EP1370704A1 Sintered ferrous material containing copper
12/17/2003EP1347073A9 HIGH Cr FERRITIC HEAT RESISTANCE STEEL
12/17/2003EP1204771B1 Semifinished and finished products made of austenitic special steel and method for the production thereof
12/17/2003EP1070153B1 Steel composition
12/17/2003EP1049552B1 Steel powder for the preparation of sintered products
12/17/2003CN1462318A High manganese deplex stainless steel having superior hot workabilities and method for manufacturing thereof
12/17/2003CN1462317A Steel plaster excellent in shape freezing property and method for production thereof
12/17/2003CN1462316A Ferritic heat-resistant steel
12/17/2003CN1462313A Granular refined iron
12/17/2003CN1131532C Orientationless electric steel plate with fine magnetic performance and manufacturing method thereof
12/17/2003CN1131334C High-strength screw bolt steel with good delay resistant breaking performance
12/17/2003CN1131333C Serial high-magnetic induction non-orieted electrical steel and production method
12/17/2003CN1131116C Method for manufacturing components made of steel
12/16/2003US6663984 Clad steel rolled section for reinforcing concrete and method of production
12/16/2003US6663981 Marker for use in a magnetic anti-theft security system and method for marking the marker
12/16/2003US6663730 Maraging steel and process for manufacturing a strip or a part cut out of a strip of cold-rolled maraging steel
12/16/2003US6663727 A railway wheel comprising a rim, a hub, and a connecting plate between rim and the hub, the rim is composed of alloy steel containing carbon , silicon, manganese, aluminum, phosphorus, sulfur, nickel, chromium, calcium, nitrogen, iron
12/16/2003US6663726 For blanking, bending, drawing and trimming of steel sheets used in automobiles, home electric appliances, printed circuit boards, agricultural equipment
12/16/2003US6663725 High strength steel sheet and method for manufacturing the same
12/16/2003US6663501 Macro-fiber process for manufacturing a face for a metal wood golf club
12/16/2003CA2269038C Austenitic stainless steel with resistant to neutron-irradiation-induced deterioration
12/11/2003WO2003102258A1 Application of a alloy in kitchen utensils manufacture
12/11/2003US20030228949 Sintered sprocket and manufacturing method
12/11/2003US20030226625 Aircraft; corrosion resistance, high strength
12/11/2003US20030226622 Manufacturing method of auger
12/11/2003CA2488351A1 Application of an alloy in kitchen utensil products
12/10/2003EP1369941A2 Low-contact-resistance interface structure between separator and carbon material for fuel cell, separator and carbon material used therein, and production method