Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
03/2003
03/26/2003CN1405335A Modified wire material with good cold-forging characteristic
03/26/2003CN1103829C Steel band for pots and its manufacture method
03/26/2003CN1103825C Electric steel sheet with better deformability and magnetic properties and its making method
03/26/2003CN1103824C Method for producing cold-rolled bands or sheets
03/26/2003CN1103823C Method for annealing an amorphous alloy and method for manufacturing a marker
03/26/2003CN1103647C Method and arrangement for producing hot-rolled strip
03/25/2003US6537398 Method for manufacturing of strips of stainless steel and integrated rolling mill line
03/25/2003US6537394 Hot rolling, coiling, cold rolling, heat treament
03/20/2003WO2003023075A1 Method of producing (110)[001] grain oriented electrical steel using strip casting
03/20/2003WO2003023074A1 Method of continuously casting electrical steel strip with controlled spray cooling
03/20/2003US20030054195 High tensile strength hot dip plated steel sheet and method for production thereof
03/20/2003US20030051782 A steel tube having a composition which contains: 0.05-0.30% C; 1.8-4.0% Mn; Si; and Al is subjected to a diameter-reducing rolling process of no less than 20% and a temperature no higher than 800 degrees C.
03/19/2003EP1293582A2 High-strength steel wire excelling in resistance to strain aging embrittlement and longitudinal cracking, and method for production thereof
03/19/2003EP1293581A1 Steel pipe for use in reinforcement of automobile and method for production thereof
03/19/2003EP1293580A1 High carbon steel pipe excellent in cold formability and high frequency hardenability and method for producing the same
03/19/2003EP1293578A2 Quenched and tempered steel wire with excellent cold forging properties
03/19/2003CN1404420A Method and device for manufacturing a hot rolled steel strip
03/19/2003CN1403602A Hyperfine steel and its producing process
03/18/2003WO2002024968A1 Steel plate excellent in shape freezing property and method for production thereof
03/18/2003US6533876 Making use of the casting heat, fed through a furnace device, roughing, rerolled
03/14/2003CA2357452A1 Steel strapping
03/13/2003US20030049153 Strength, toughness, and ductility; useful in articles such as an aircraft structural component or a golf club head
03/13/2003US20030047258 High tensile cold-rolled steel sheet excellent in ductility and in strain aging hardening properties, and method for producing the same
03/13/2003US20030047257 Cold-rolled steel sheet having excellent strain aging hardening properties and method for producing the same
03/13/2003US20030047256 High tensile cold-rolled steel sheet having excellent strain aging hardening properties
03/13/2003US20030047246 Material for tension type color-selective device for color cathode-ray tube and method of producing same
03/13/2003US20030047242 Hot forging the steel; machining and optionally piercing the forged product; carburizing and quenching and tempering the machined steel to attain an effective case depth of 0.4 to 0.9 mm
03/12/2003EP1291451A1 Electrical sheet having insulating coating and insulating coating
03/12/2003EP1291448A1 Cold rolled steel sheet and galvanized steel sheet having strain aging hardening property and method for producing the same
03/12/2003EP1291447A1 Cold-rolled steel sheet having excellent strain aging hardening properties and method for producing the same
03/12/2003EP1291445A1 Steel material production method
03/12/2003CN1402798A Martensitic stainless steel and steelmaking process
03/12/2003CN1401807A Tagger steel strip for battery casing, and producing method thereof
03/12/2003CN1401793A Bioriented silicon steel vaccum annealing process
03/11/2003US6531001 Non-oriented magnetic steel sheet having low iron loss and high magnetic flux density and manufacturing method therefor
03/06/2003WO2003018858A1 An ultra high strength steel composition, the process of production of an ultra high strength steel product and the product obtained
03/06/2003WO2003018857A1 Steel plate exhibiting excellent workability and method for producing the same
03/06/2003WO2003018856A2 Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steels
03/06/2003WO2003018223A1 Method for processing a continuously cast metal slab or strip, and plate or strip produced in this way
03/06/2003WO2003018221A2 Device for processing a metal slab, plate or strip, and product produced using this device
03/06/2003US20030044638 Welded steel pipe having excellent hydroformability and method for making the same
03/06/2003US20030044304 High strength, oxidation resistance steel; valves for internal combustion engines
03/06/2003US20030041933 Method for making a multiphase hot-rolled steel strip
03/06/2003US20030041932 Hot rolling; controlling particle sizes
03/05/2003EP1288322A1 An ultra high strength steel composition, the process of production of an ultra high strength steel product and the product obtained
03/05/2003EP1288316A1 Method for making high-strength high-toughness martensitic stainless steel seamless pipe
03/05/2003EP1287171A1 Hardened fe-ni alloy for making integrated circuit grids and method for making same
03/05/2003CN1401212A High strength steel plate having superior electric and magnetic shielding property and method for producing same
03/05/2003CN1401012A Steel pipe having excellent formability and method for production thereof
03/05/2003CN1400959A Powders which have an antibacterial and a far infrared ray radiating property and a bio-wave steel plate which is coated with resin containing the same
03/05/2003CN1400319A Manufacture of directional electromagnetic steel plate
03/05/2003CN1102670C Non-directional electromagnetic steel sheet, and method for mfg. same
03/04/2003US6527883 Containing 0.82 mass % of C, 1.05 mass % of Si, 0.51 mass % of Mn and 0.09 mass % of Cr to be worked into steel wires of pearlite structure
03/04/2003US6527876 Silicon steel sheet and method for producing the same
02/2003
02/26/2003EP1285101A1 Electroplating annealed thin sheets and method for producing the same
02/26/2003EP1285097A1 Martensitic stainless steel and seamless steel pipes produced with it
02/26/2003CN1399001A Steel plate for barrel and its making process and barrel
02/26/2003CN1398999A Technological process of producing Al and B-containing high-strength microalloy steel
02/26/2003CN1102180C Wire materials with high drwable property and manufacture thereof
02/25/2003US6524726 Cold-rolled steel sheet and galvanized steel sheet, which are excellent in formability, panel shapeability, and dent-resistance, and method of manufacturing the same
02/25/2003US6524400 Continuous casting steel melt into strands; cooling, solidification, dividing into thin slabs; equalization in furnace; coiling, decarbonization, recrystallization, cold rolling, annealing, coating, stress relieving
02/25/2003US6524380 Magnesium methylate coatings for electromechanical hardware
02/20/2003WO2003014408A1 Steel material having high toughness and method of producing steel pipes using the same
02/20/2003WO2003014404A1 Non-grain oriented electric sheet steel or strip and method for the production thereof
02/20/2003US20030034593 Method and device for manufacturing a hot rolled steel strip
02/20/2003US20030034100 Cold rolling; tensile strength, ductility, hardening
02/20/2003US20030034092 Method of manufacturing grain-oriented electrical steel sheet
02/19/2003EP1284308A1 Magnesium oxide particle aggregate
02/19/2003CN1398302A Steel plate to be precipitating Tin+Zrn for welded structures, method for mfg. same and welding fabric using same
02/19/2003CN1101857C Method for producing raw plate for surface treatment plate for can using continuous annealing
02/19/2003CN1101856C Formed rolled piece and mfg. method thereof
02/18/2003US6521057 High-strength high-toughness steel products
02/18/2003US6521056 Stainless steel sheet has a composition containing, by weight % carbon not more than 0.02% manganese 1.5%, chromium 15%, nickel 0.05-2.0%, molybdenum 1.0 to 2.0% niobium 0.2 to 0.8% aluminum not more than 1%, nitrogen 0.02%, balance is iron
02/18/2003US6521055 Composite magnetic member comprising hollow ferromagnetic steel portion and hollow nonmagnetic steel portion formed to ferromagnetic steel, wherein nonmagnetic steel has residual compressive stress to prevent stress corrosion cracks
02/13/2003DE10161465C1 Production of hot strip used in vehicle chassis comprises casting steel into pre-material, hot rolling to form hot strip, cooling in first cooling step, and cooling in second cooling step after pause to coiling temperature
02/13/2003DE10129900C1 Verfahren zur Wärmebehandlung eines Kaltbandes mit einer Oberflächenbeschichtung aus Ni und/oder Co, durch das Verfahren herstellbares Blech und durch das Verfahren herstellbarer Batteriebecher A method of heat treatment of a cold strip with a surface coating of Ni and / or Co, producible by the method and sheet producible by the method of battery cans
02/12/2003EP1283275A1 Fe-Ni based permalloy and method of producing the same and cast slab
02/12/2003CN1396963A Steel plate to be precipitating TiN+MnS for welded structures, method for manufacturing the same and welded structure using the same
02/12/2003CN1396295A High-extension steel plate with good drawing property and strain ageing hardness property and its manufacturing method
02/12/2003CN1101482C Steel sheet for can and manufacturing method thereof
02/12/2003CN1101481C Fe-Nially for tension mask and tension mask using it and colour CRT
02/11/2003US6517955 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
02/06/2003WO2003010351A1 Multi-phase steel sheet excellent in hole expandability and method of producing the same
02/06/2003WO2002059383A3 Manufacturing process for making engine components of high carbon content steel using cold forming techniques
02/06/2003US20030024612 Corrosion resistant material
02/06/2003US20030024610 Steel wire rod for hard drawn spring,drawn wire rod for hard drawn spring and hard drawn spring, and method for producing hard drawn spring
02/06/2003US20030024606 Comprising: 1.5-8.0 weight % silicon; 0.005-2.50 weight % manganese; and not more than 50 ppm of each of carbon, sulfur, nitrogen, oxygen, and boron
02/05/2003EP1281782A1 Hot rolled wire or steel bar for machine structural use capable of dispensing with annealing, and method for producing the same
02/05/2003EP1281778A2 Method of manufacturing grain-oriented electrical steel sheet
02/05/2003EP1281777A1 Rolled h-shaped steel having uniform microstructure and uniform mechanical properties and method for producing the same
02/05/2003EP1281182A1 Iron-cobalt alloy, in particular for electromagnetic actuator mobile core and method for making same
02/05/2003EP0933440B1 Case hardened steel excellent in the prevention of coarsening of particles during carburizing thereof, method of manufacturing the same, and raw shaped material for carburized parts
02/05/2003CN1395624A Steel plate to be precipitating Tin+CuS for welded structures, method for mfg the same, welding fabric using the same
02/05/2003CN1395623A High tensile strength hot dip plated steel sheet and method for production thereof
02/05/2003CN1100885C Method for mfg. cold rolled steel sheet excellent in resistance to natural aging and panel properties
01/2003
01/30/2003WO2003008654A1 Ultra-high magnetic flux density unidirectional electrical sheet excellent in high magnetic field iron loss and coating characteristics and production method therefor
01/30/2003US20030019550 Medium carbon steel sheet and strip having enhanced uniform elongation and method for production thereof
01/30/2003US20030019549 Low-alloy carbon steel for the manufacture of pipes for exploration and the production of oil and/or gas having an improved corrosion resistance, a process for the manufacture of seamless pipes, and the seamless pipes obtained therefrom
01/29/2003EP1279747A2 A method of manufacturing grain-oriented electrical steel sheets
01/29/2003EP1279445A1 Hot rolling mill and hot rolling method