Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
09/2002
09/25/2002EP1243664A1 Bar or wire product for use in cold forging and method for producing the same
09/25/2002EP1108072B1 Method and installation for producing dual-phase steel
09/25/2002CN1370851A Plastic-forming die steel and its heat treatment process
09/25/2002CN1370850A Serial high-magnetic induction non-orieted electrical steel and its production process
09/24/2002US6454881 Non-refined steel being reduced in anisotropy of material and excellent in strength, toughness and machinability
09/24/2002US6454879 Austenitic; in media with high chloride concentrations; carbon, silicon, chromium, manganese, nitrogen, iron; deformation and synergistically results in a ferrite-free material; oilfield technology, borerods and drills
09/19/2002WO2002059389A3 Steel and method for producing an intermediate product
09/19/2002WO2002059384A3 High-strength isotropic steel, method for making steel plates and resulting plates
09/19/2002WO2002038477A9 Endless yarn tensioning strip and method for producing the same
09/19/2002US20020129921 Differential quench method and apparatus
09/19/2002US20020129877 Subjecting steel to smelting, reheating, hot rolling, coiling, cold rolling; annealing of the sheet-metal strip
09/19/2002US20020129873 Ferritic stainless steel which can be used for ferromagnetic parts
09/19/2002DE10160644A1 Nichtorientiertes Elektrostahlblech mit ultrahoher magnetischer Flußdichte und Herstellungsverfahren dafür Non-oriented electrical steel sheet with ultra-high magnetic flux density and manufacturing method thereof
09/19/2002DE10110384A1 Draht aus rostfreiem Stahl Stainless steel wire
09/18/2002EP0707087B1 High-strength steel sheet adapted for deep drawing and process for producing the same
09/18/2002CN1091166C Cold-rolled strip and hot-dip coated cold-rolled steel strip for use as building material, mfg. method thereof
09/18/2002CN1091161C Method for mfg. high adherence enamel-coating steel sheet with superior formability
09/18/2002CN1091154C Prodn. method for low-carbon micro steel alloy
09/17/2002US6451450 Method of depositing a protective layer over a biaxially textured alloy substrate and composition therefrom
09/17/2002US6451136 Method for producing hot-rolled strips and plates
09/17/2002US6451134 590MPa class heavy gauge H-shaped steel having excellent toughness and method of producing the same
09/17/2002US6451128 Hot rolling annealing; cold rolling decarbonization; controlling concentration
09/12/2002WO2002070767A1 Electric welded steel tube for hollow stabilizer
09/12/2002WO2002070166A1 Stainless steel wire and method for producing a wire with improved resistance to corrosion
09/11/2002EP1238118A2 Martensitic stainless steel and steelmaking process
09/11/2002EP1116798A9 Hot rolled electrical steel sheet excellent in magnetic characteristics and corrosion resistance and method for production thereof
09/10/2002US6447622 High carbon steel wire excellent in wire-drawability and in fatigue resistance after wire drawing
09/10/2002CA2193349C Method of increasing the yield strength of cold formed steel sections
09/06/2002WO2002068703A1 Hot dip zinc plated steel sheet having high strength and method for producing the same
09/05/2002US20020121318 Method of manufacturing a high MN non-magnetic steel sheet for cryogenic temperature use
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
09/04/2002CN1367268A Method for preparing iron-nickel alloy strip
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
09/03/2002US6444051 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
08/2002
08/29/2002WO2002066697A1 Thin steel sheet for automobile excellent in notch fatigue strength and method for production thereof
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
08/29/2002US20020117238 Method for making sheet metal components with textured surfaces
08/29/2002CA2438393A1 Thin steel sheet for automobile excellent in notch fatigue strength and method for production thereof
08/28/2002EP0760397B1 Equipment for manufacturing stainless steel strip
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
08/28/2002CN1089811C Hot-rolled steel strip and method of making it
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
08/27/2002US6440211 Method of depositing buffer layers on biaxially textured metal substrates
08/22/2002WO2002064845A2 Method for producing welded tubing having a uniform microstructure
08/22/2002WO2002050314A3 Process for the production of grain oriented electrical steel strips
08/22/2002US20020112787 High-strength race and method of producing the same
08/22/2002DE10103290A1 Stahl und Verfahren zur Herstellung eines Zwischenproduktes Steel and process for the preparation of an intermediate
08/22/2002DE10102932C1 Verfahren zur Herstellung eines kalt gewalzten Bandes oder Bleches aus Stahl und nach dem Verfahren herstellbares Band oder Blech A process for producing a cold-rolled strip or sheet of steel and producible by the method strip or sheet
08/21/2002EP1233080A1 Steel for plastic molds and process of heat treatment thereof
08/21/2002EP1233079A1 Cold reduced enamelling steel sheet and an enamelled structure comprising a component of such a steel sheet
08/21/2002CN1089373C Process for the inhibition control in the prouction of grain-oriented electrical sheets
08/20/2002US6436199 Non-oriented magnetic steel sheet having low iron loss and high magnetic flux density and manufacturing method therefor
08/20/2002CA2050208C Manufacturing process for products with very high fracture loads from unstable austenitic steel and use thereof
08/15/2002WO2002050315A3 Process for the production of grain oriented electrical steel strips
08/14/2002EP1231289A1 Steel pipe having high formability and method for producing the same
08/14/2002EP1230411A1 Method for fabricating vehicle components and new use of a precipitation hardenable martensitic stainless steel
08/14/2002EP1230405A1 Method of producing ultra-fine grain structure for unalloyed or low-alloyed steel
08/14/2002EP0944910B1 Display unit for use in a magnetic anti-theft system
08/14/2002EP0796352B1 Ultra-high strength steels and method thereof
08/14/2002CN1363710A Ferritic stainless steel with excellent machinability and production thereof
08/14/2002CN1089116C Carbide annealing process for high-speed great-deformation hot-rolled and cold-upset steel
08/14/2002CN1089046C Clad material and method of manufacturing the material
08/13/2002US6432227 Electromagnetic steel sheet and process for producing the same
08/13/2002US6432222 Method for producing a grain-oriented electrical steel sheet excellent in magnetic properties
08/08/2002WO2002061161A1 High strength steel sheet having excellent formability and method for production thereof
08/08/2002WO2002061150A2 Transfer and stretching plant for metallic section bars of various kind
08/08/2002WO2002060611A1 Method for altering the profile of a roller strip
08/08/2002US20020104597 Method and apparatus for producing steel
08/08/2002US20020104586 FR-CR soft magnetic material and a method of manufacturing thereof
08/08/2002US20020104213 Process for manufacturing a cylindrical hollow body and hollow body made thereby
08/08/2002DE10106273A1 Verfahren zum Beeinflussen des Profils von Walzband Method for influencing the profile of rolled strip
08/07/2002EP1228255A1 Method for production of a hot rolled strip
08/07/2002EP1228254A1 Method for making carbon steel bands, in particular packaging steel bands, and resulting bands
08/07/2002EP1228253A1 Steel composition, method for making same and parts produced from said compositions, particularly valves
08/07/2002EP0834580B1 Alloy having high corrosion resistance in environment of high corrosiveness, steel pipe of the same alloy and method of manufacturing the same steel pipe
08/07/2002CN1088764C Ferritic stainless steel plate of high deep drawability and ridging resistance and method of mfg. same
08/07/2002CN1088763C Fe-Ni series alloy for shadow mask use
08/07/2002CN1088760C Method for manufacturing high magnetic flux density grain oriented electrical steel sheet based on low temperature slab heating method
08/06/2002US6430461 Process for monitoring and controlling the quality of rolled products from hot-rolling processes
08/06/2002US6428632 Non-oriented electromagnetic steel sheet having reduced magnetic anisotropy in high frequency region and excellent press workability
08/01/2002WO2002059389A2 Steel and method for producing an intermediate product
08/01/2002WO2002059384A2 High-strength isotropic steel, method for making steel plates and resulting plates
08/01/2002WO2002059383A2 Manufacturing process for making engine components of high carbon content steel using cold forming techniques
08/01/2002US20020102178 Shape, hardness
08/01/2002US20020100524 Method for producing welded tubing having a uniform microstructure
08/01/2002US20020100522 Annealing a carbon steel resulting in a microstructure of steel having dispersion of carbides in ferritic matrix; cold rolling annealed steel; cleaning; bridle braking; austenitizing the steel; quenching, isothermal transformation
07/2002
07/31/2002EP1227168A1 Ferritic stainless steel sheet for fuel tank and fuel pipe and method for making the same
07/31/2002EP1227163A2 Grain oriented electrical steel sheet with low iron loss and production method for same