Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120)
09/2002
09/18/2002CN1091168C Corrosion-resistant low-nickel austenitic stainless steel
09/18/2002CN1091167C High Cr cast steel grate and its manufacture method
09/18/2002CN1091166C Cold-rolled strip and hot-dip coated cold-rolled steel strip for use as building material, mfg. method thereof
09/18/2002CN1091165C 悬挂弹簧钢 Suspension spring steel
09/18/2002CN1091164C Making process of microalloyedplastic-mould steel
09/18/2002CN1091163C High strength low expansion alloy steel
09/18/2002CN1091162C Iron-cobalt alloy
09/18/2002CN1091161C Method for mfg. high adherence enamel-coating steel sheet with superior formability
09/18/2002CN1091157C Perro-titanium base hydrogen storage alloy
09/17/2002US6451134 590MPa class heavy gauge H-shaped steel having excellent toughness and method of producing the same
09/17/2002US6451133 Chemical resistance
09/17/2002US6451128 Hot rolling annealing; cold rolling decarbonization; controlling concentration
09/17/2002CA2232024C Improved heat treatment of grinding rod
09/12/2002WO2002070909A1 Rolling bearing with nitriding steel cylindrical rolling elements
09/12/2002WO2002070769A1 Steel article
09/12/2002WO2002070768A2 A cast shaped article made from high strenght, precipiation-hardenable stainless steel and a process for making same
09/12/2002WO2002070767A1 Electric welded steel tube for hollow stabilizer
09/12/2002WO2002070766A1 Steel sheet for tension mask and method for production thereof, tension mask, and cathode ray tube
09/12/2002WO2002070762A1 Member having separation structure and method for manufacture thereof
09/12/2002US20020127132 High temperature, high strength magnetic alloys with high saturation magnetization for use as rotors, stators, and/or bearings of an auxiliary power unit of an aircraft jet engine
09/12/2002US20020127131 Austenitic stainless steel less susceptible to cracking during forming and a manufacturing method thereof
09/12/2002US20020126573 Housing for plastics, metal powder, ceramic powder or food processing machines
09/12/2002US20020124913 Iron-chromium-nickel-aluminum (Fe-Cr-Ni-Al); amounts of Ni, Cr and Al in the alloy are adjusted in proper ranges, to strengthen without deteriorating oxidation resistance
09/12/2002US20020124911 Carburizable, hardness, fracture resistance, content of tungsten, molybedenum, cobalt or vanadium adjusted to compensate for reduction of chromium
09/12/2002US20020124716 Method for producing tubes for heavy guns
09/12/2002DE10106217A1 Production of neodymium-iron-boron alloys comprises subjecting a starting alloy containing impurities to a protective gas atmosphere above the liquidus temperature
09/12/2002CA2440123A1 Rolling bearing with nitriding steel cylindrical rolling elements
09/12/2002CA2436423A1 Steel article
09/11/2002EP1239257A1 Method for producing gun barrels
09/11/2002EP1238118A2 Martensitic stainless steel and steelmaking process
09/11/2002EP1133579B1 Method for producing of a protective layer on a martensitic steel and utilisation of said steel coated with said protective layer
09/11/2002EP1116798A9 Hot rolled electrical steel sheet excellent in magnetic characteristics and corrosion resistance and method for production thereof
09/11/2002CN1368560A Phase transformation control nitride evolved hardened quenched and tempered steel
09/11/2002CN1090682C Fast melt-quenching process to synthesize cubic Laves phase giant magnetostrictive material with high pr content and preparation method
09/10/2002US6447622 High carbon steel wire excellent in wire-drawability and in fatigue resistance after wire drawing
09/10/2002US6447621 R-T-B rare earth sintered magnet having improved squareness ratio and method for producing same
09/10/2002US6447619 High surface pressure resistant steel parts and methods of producing same
09/10/2002CA2226350C Cold-forming steel
09/06/2002WO2002069357A1 Bonded magnets made with atomized permanent magnetic powders
09/06/2002WO2002068703A1 Hot dip zinc plated steel sheet having high strength and method for producing the same
09/05/2002US20020122956 Magnetic marker and manufacturing method therefor
09/05/2002US20020122740 Railway wheel alloy
09/05/2002US20020122739 Improved workability thereof, strength, and heat resistance; iron/chromium/aluminum alloy also containing zirconium, titanium and a Be element of below 0.1 wt %.
09/05/2002US20020121318 Method of manufacturing a high MN non-magnetic steel sheet for cryogenic temperature use
09/04/2002EP1236937A2 Seal rings for potable water applications
09/04/2002EP1236809A2 High-hardness martensitic stainless steel excellent in corrosion resistance
09/04/2002EP1235943A1 PRODUCT MADE FROM AN ALLOY CONTAINING ONE OR MORE OF Cr, Al, Si, Ti, M AND SOCALLED ODE AND METHOD TO PRODUCE SAID PRODUCT
09/04/2002EP1235940A2 Cold formed flat-rolled steel structural members
09/04/2002EP1235682A1 Method for the production of a heat resistant alloy with good high temperature oxidation resistance
09/04/2002EP1163063A4 Hardened steel security materials
09/04/2002EP1140719B1 Use of an enamelling composition, enabling to avoid fish-scales and resulting enamelled sheet
09/04/2002EP1068366B1 Steel material and method for its manufacturing
09/04/2002EP0851037B1 High-chromium and high-nickel alloy with hydrogen sulfide corrosion resistance
09/04/2002CN1367848A Method of making weathering grade plate and product therefrom
09/04/2002CN1367846A High resistance steel band or sheet and method for production theirof
09/04/2002CN1367272A Ultrahigh carbon steel base material with superplasticity, its production method and application
09/04/2002CN1367268A Method for preparing iron-nickel alloy strip
09/04/2002CN1090246C Cold rolled steel sheet excellent in baking hardenability
09/04/2002CN1090245C High corrosion resistant aluminium alloy containing zirconium
09/04/2002CN1090242C Orientation silicon-iron sheet with excelent magnetic property and its production method
09/04/2002CN1090241C 简易钢包精炼方法 Easy ladle refining method
09/04/2002CN1090067C Method for manufacturing powder metallurgical body
09/04/2002CN1090066C Heat treatment of metal castings and in furnace sand reclamation equipment and technology
09/03/2002US6444168 Apparatus comprising furnaces, reactors or conduits used in applications requiring anti-coking properties and novel steel compositions
09/03/2002US6444055 Composite material with a high proportion of intermetallic phases, preferably for friction bodies
09/03/2002US6444052 Production method of anisotropic rare earth magnet powder
09/03/2002US6444051 Method of manufacturing a grain-oriented electromagnetic steel sheet
09/03/2002US6444050 Artificially creating randomly oriented fine grains regularly disposed in a steel containing small amounts of carbon, silicon and manganese; decreased strain susceptibility
09/03/2002US6444049 Method for producing high silicon steel, and silicon steel
09/03/2002US6444048 Alloy for use in preparation of R-T-B-based sintered magnet and process for preparing R-T-B-based sintered magnet
08/2002
08/29/2002WO2002067275A1 Method of making material alloy for iron-based rare earth magnet
08/29/2002WO2002066697A1 Thin steel sheet for automobile excellent in notch fatigue strength and method for production thereof
08/29/2002WO2002066695A1 Hydrogen occlusion alloy
08/29/2002WO2002066173A1 A self-adjusting blade
08/29/2002US20020119858 Rolling element for a continuously variable transmission (CVT), a CVT using the rolling element and a method for producing the rolling element
08/29/2002US20020119070 .51-.55 wt% carbon, 1.15-1.25 wt% manganese, .15-.30 wt% silicon, .9-1.1 wt% chromium, .15-.25 wt% molybdenum, .1-.15 wt% vanadium, .015-.060 wt% aluminum, .015-.03 wt% niobium, .008-.012 wt% nitrogen and the balance iron and impurities
08/29/2002US20020119069 20-30% manganese, 5.5-6% silicon, 2-5% chromium, .1-.5% nitrogen and 61-70% iron; 100% shape recovery with one cycle of thermo-mechanical training with a prestrain of 3%
08/29/2002US20020117538 Process for producing welded steel pipes with a high degree of strength, ductility and deformability
08/29/2002US20020117241 Method of manufacturing Fe-Ni alloy material for pressed flat mask
08/29/2002US20020117240 Ferritic stainless steel sheet for fuel tank and fuel pipe and method for making the same
08/29/2002US20020117239 Ferritic stainless steel sheet having good workability and manufacturing method thereof
08/29/2002US20020117023 Iron component and a manufacturing method therefor
08/29/2002US20020117022 Converting trivalent iron ions and impurity divalent copper ions in aqueous solution of iron chloride to divalent iron ions and monovalent copper ions using hydrochloric acid, separating monovalent copper ions using ion exchange resins
08/29/2002CA2438393A1 Thin steel sheet for automobile excellent in notch fatigue strength and method for production thereof
08/28/2002EP1235290A2 Stainless steel separator for fuel cells, method for making the same, and solid polymer fuel cell including the same
08/28/2002EP1234894A1 Corrosion resistant, high strength alloy and a method for manufacturing the same
08/28/2002CN1366559A High tensile cold-rolled steel sheet having excellent strain aging hardening properties
08/28/2002CN1366558A High tensile hot-rolled steel sheet having excellent strain aging hardening properties and method for producing same
08/28/2002CN1366557A Color CRT mask frame, steel plate for use therein, process for producing steel plate, and color CRT having frame
08/28/2002CN1366555A Method for manufacturing high strength bolt excellent in resistance to delayed fracture and relaxation
08/28/2002CN1366090A Unmodified steel for sucker rod and its making technology
08/28/2002CN1089811C Hot-rolled steel strip and method of making it
08/27/2002US6441228 Apparatus and process for producing (meth)acrylic acid
08/27/2002US6440768 Thermoelectric semiconductor material and method of manufacturing the same
08/27/2002US6440584 Hot-dip galvanized steel sheet and method for producing the same
08/27/2002US6440579 Process for producing a drawn wire made of stainless steel, in particular a wire for reinforcing tires, and wire obtained by the process
08/27/2002US6440236 Martensite phase and the remainder substantially of austenite phase, and has mo-system precipitates and ti-system precipitates distributed in the martensite phase
08/27/2002US6440235 Method of manufacturing high productive and high strength rolled H-shaped
08/27/2002US6440233 Rolling bearing
08/27/2002US6440232 Inner and outer races of a power roller bearing, an input disk, and an output disk is composed of an alloy steel material