Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
01/2003
01/29/2003CN1394237A High tensile hot rolled steel sheet and method for production thereof
01/29/2003CN1393318A Process for preparing shaped steel fibres
01/29/2003CN1100158C Extra-low iron loss high-magnetic flux density oriented electromagnetic steel plate and its mfg. method
01/29/2003CN1100157C Series electrical steel used for high efficiency motor iron core
01/28/2003US6511559 Process for producing wear-resistant edge layers in precipitation-hardenable materials
01/23/2003WO2003006699A1 High strength steel pipe having strength higher than that of api x65 grade
01/23/2003US20030018380 Platinum enhanced alloy and intravascular or implantable medical devices manufactured therefrom
01/23/2003US20030015264 Wire rod or bar is made from a steel consisting of, in weight, 0.1 to 0.5% of carbon, 0.01 to 0.5% of silicon, 0.3 to 1.5% of manganese and the balance is iron and impurities and containing stregnthening elements as required
01/23/2003US20030015263 A cold-rolled steel sheet having excellent strain age hardenability comprising, by mass %, carbon 0.15%, silicon 1.0% or less, manganese 2.0% or less, sulfur 0.01 or less, aluminum 0.005 to 0.030% and nitrogen 0.0050 to 0.0400%,
01/23/2003US20030015260 Enhancing the growth of solidification nuclei and fining a solidification structure when producing an ingot or a cast steel from the molten steel after it is subjected to decarbonization refining using ingot or continuous casting
01/22/2003EP1277848A1 High-strength heat-resistant steel, process for producing the same, and process for producing high-strength heat-restistant pipe
01/22/2003EP1277846A1 High-carbon steel wire rod with superior drawability and method for production thereof
01/22/2003EP1276915A1 Rolling bearing component
01/22/2003CN1392903A Stainless steel pipe with excellent suitability for secondary processing for automotive structure member
01/22/2003CN1099474C Iron loss low, strain characteristic resistant and practical characteristic good grain orientation electromagnet steel plate and its manufacture method
01/22/2003CN1099472C High strength phosphorated steel and its producing method
01/22/2003CN1099468C Method for producing high silicon steel and silicon steel
01/21/2003US6508893 Subjecting Iron-nickel-manganese based alloy to a hot rolling process wherein the rate of distortion during each pass of hot rolling is below 70/second resulting in the alloy having reduced rate of crack formation during hot rolling
01/21/2003US6508892 Uniform aperture diameter
01/21/2003CA2244029C Method of manufacturing helical springs
01/16/2003WO2003004715A1 Thin alloy sheet of low thermal expansion and shadow mask using the same
01/16/2003WO2003004708A1 Method for strengthening a steel channel member
01/15/2003EP1275746A2 Shaving articles formed from geometrically articulated amorphous metal alloys and processes for their production
01/15/2003EP1274868A1 Method for the production of a part of a rolling bearing
01/15/2003CN1391617A Method for fabricating vehicle components and new use of precipitation hardenable martensitic stainless steel
01/15/2003CN1390973A Corrosionproof steel
01/15/2003CN1390960A Production method for cryogenic weldable ultrahigh-strength steel plates with good toughness
01/15/2003CN1390656A Warm machining method for making stainless steel pipe
01/15/2003CN1098936C High strength galvanized steel plate excellent in adhesion of plated metal and formability in press working and high strength alloy galvanized steel plate and method for production thereof
01/09/2003WO2003002777A1 Nonoriented electromagnetic steel sheet
01/09/2003WO2003002772A1 Method for producing high-strength cold-formed steel products from a hot rolled strip, said products exhibiting good malleability
01/09/2003US20030008171 Formed via heating or soaking; tensile strength; for underbody components of vehicles
01/09/2003US20030005986 Ultra-high strength cold rolled steel sheet and method for manufacturing the same
01/09/2003US20030005985 Method for strengthening a steel channel member
01/08/2003EP1273673A1 Grain-oriented magnetic steel sheet having no undercoat film comprising forsterite as primary component and having good magnetic characteristics
01/08/2003EP1273670A1 Method for manufacturing high strength bolt excellent in resistance to delayed fracture and to relaxation
01/08/2003EP1192287B1 Method for producing non-grain oriented electric sheet steel
01/08/2003CN1098367C Aperture grill material for color picture tube, production method thereof, aperture grill and picture tube
01/08/2003CN1098366C Resin coated steel sheet suitable for use in thin-walled deep-drawn ironed can and steel sheet therefor
01/08/2003CN1098359C Ultra-high strength and phase steel with excellent cryogenic temperature toughness, and method for manufacturing the same
01/08/2003CN1098358C Ultra-high strength ausaged steels with excellent cryogenic temp. toughness
01/07/2003US6503339 Hot rolling directly from casting heat or after reheating; multiple metal forming passes producing two phase austenite and ferrite regions during finishing rolling; iron with at least carbon, silicon, aluminum and manganese
01/03/2003WO2003000951A1 Grain oriented electric sheet of metal with an electrically insulating coating
01/03/2003WO2003000938A1 Method of producing high cr-based seamless steel tube
01/03/2003WO2003000937A2 Heat treatment method for a cold-rolled strip with an ni and/or co surface coating, sheet metal producible by said method and battery can producible by said method
01/02/2003EP1268119A2 Method for producing a welding pin
01/02/2003EP1112128B1 Method and device for producing hot-rolled strips and plates
01/01/2003CN1388836A Steel sheet for porcelain enamel excellent in forming property, aging property and enameling characteristics and method for producing the same
01/01/2003CN1388835A Steel pipe for use in reinforcement of automobile and method for production thereof
01/01/2003CN1388834A High carbon steel pipe excellent in cold formability and high frequency hardenability and method for producing the same
12/2002
12/31/2002US6500280 Ferritic Cr-containing steel sheet having excellent ductility, formability, and anti-ridging properties
12/31/2002US6500278 Super high purity iron; transformer or generator cores; low cost
12/27/2002WO2002103071A1 High tensile hot rolled steel sheet excellent in shape freezing property and endurance fatigue characteristics after forming
12/27/2002WO2002103070A1 Method for producing steel pipe having high ductility
12/26/2002US20020197508 Antiaging property at room temperature and formability at the same time
12/26/2002US20020196989 Rolling bearing unit for supporting wheel
12/26/2002US20020195179 With articulated topographical definition
12/25/2002CN1386884A Method for producing oxide dispersion enhanced Cr-contg. ferrie Fe-alloy pipe
12/25/2002CA2391263A1 Shaving articles formed from geometrically articulated morphousmetal alloys and processes for their production
12/19/2002WO2002101109A1 Highly stable, steel and steel strips or steel sheets cold-formed, method for the production of steel strips and uses of said steel
12/19/2002WO2002101099A1 High tensile hot-rolled steel sheet excellent in resistance to scuff on mold and in fatigue characteristics
12/19/2002WO2002070166B1 Stainless steel wire and method for producing a wire with improved resistance to corrosion
12/19/2002WO2002064845A3 Method for producing welded tubing having a uniform microstructure
12/19/2002US20020193865 Radiopaque stent
12/19/2002US20020192508 Method of fabricating improved buffer architecture for biaxially textured structures
12/19/2002US20020192495 Heating/soaking an untreated pipe having a steel containing carbon, silicon, manganese, phosphorus, sulfur, aluminum, nitrogen and iron and reduction-rolling at a rate of >35% at 500-900degrees C.; tensile strength >MPa; vehicle underbody
12/19/2002US20020192012 Linear shape steel excellent in joint fatigue characteristics and production method therefor
12/19/2002US20020189399 Chromium, nickel, molybdenum and nitrogen with pitting resistance equivalent number of >/= 50, remelting to homogenize
12/18/2002EP1266041A1 Method for making a multiphase hot-rolled steel strip
12/18/2002CN1386144A Ferritic stainless steel for ferromagnetic parts
12/18/2002CN1386143A Steel pipe having high formability and method for producing the same
12/18/2002CN1386142A Cold rolled steel sheet and hot rolled steel sheet excellent in bake hardenability and resistance to ordinary temperatureaging and method for their production
12/18/2002CN1386141A Cold-rolled steel sheet having excellent strain aging hardening properties and method for producing the same
12/18/2002CN1386140A Cold rolled steel sheet and galvanized steel sheet having strain aging hardening property and method for producing the same
12/18/2002CN1386139A Super high tensile cold-rolled steel plate and method for production thereof
12/17/2002US6494969 High strength cold rolled steel sheet and method for manufacturing the same
12/14/2002WO2002103069A1 Steel pipe having high formability and method for production thereof
12/12/2002WO2002099150A1 Martensitic stainless steel
12/12/2002DE10130774C1 Production of a high strength cold-formed product comprises pre-casting a steel to a pre-material, hot rolling into a hot strip so that the micro-alloying elements remain dissolved, coiling, cold-forming to a product, and annealing
12/11/2002EP1264911A2 High-ductility steel sheet excellent in press formability and strain age hardenability, and method for manufacturing the same
12/11/2002EP1264910A1 Steel pipe having excellent formability and method for production thereof
12/11/2002EP1264902A2 Welded steel pipe for hydroforming and method for making the same
12/11/2002EP1264645A2 Welded steel pipe having excellent hydroformability and method for making the same
12/11/2002EP1263993A1 Method for producing non grain-oriented electric sheets
12/11/2002EP0774520B1 Process for producing steel pipe excellent in corrosion resistance and weldability
12/11/2002EP0730042B1 Bainite steel material of little scatter of quality and method of manufacturing the same
12/05/2002WO2002097146A1 Unidirectional silicon steel sheet of ultra-low iron loss and method for production thereof
12/05/2002US20020179207 Method for manufacturing high strength bolt excellent in resistance to delayed fracture and to relaxation
12/05/2002US20020179206 High strength cold rolled steel sheet and method for manufacturing the same
12/05/2002US20020179193 Hot rolling; finishing; controlling temperature
12/05/2002US20020178999 Laminate articles on biaxially textured metal substrates
12/04/2002EP1261748A1 Bar product, cylinder rods, hydraulic cylinders, and method for manufacturing
12/04/2002EP1163376B1 Method for continuous casting of highly ductile ferritic stainless steel strips between rolls, and resulting thin strips
12/04/2002EP1103626B1 HIGH Cr FERRITIC HEAT RESISTANCE STEEL
12/04/2002CN1383459A Thin steel sheet and method for prodn. thereof
12/04/2002CN1383458A High tensile cold-rolled steel sheet excellent in ductility and in strain ageing hardening properties, and method for producing same
12/04/2002CN1383457A Cold rolled steel sheet having excellent corrosion resistance to sulfuric acid
12/03/2002US6488791 Method for strengthening a steel channel member
12/03/2002US6488790 Impact strength and toughness, tensile and yield strength, eloongation, formability, fatigue resistance, weldability
12/03/2002US6488787 Cold workable steel bar or wire and process