Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
10/2003
10/15/2003CN1124358C Hot-dip galvanized steel sheet having high strength and also being excellent in formability and gelvanizing property and method for producing the same
10/15/2003CN1124357C Electric steel plate suitable for making small core and its manufacture
10/14/2003US6632301 Method and apparatus for bainite blades
10/14/2003US6632298 Casting slab for shadow mask, method for heat treatment thereof and material for shadow mask
10/14/2003US6632296 Steel pipe having high formability and method for producing the same
10/14/2003US6632295 High tensile strength hot-rolled steel sheet and method for manufacturing the same
10/09/2003WO2003083151A1 Steel wire for hard drawn spring excellent in fatigue strength and resistance to settling, and hard drawn spring
10/09/2003US20030190493 High strength; hot rolling; cold rolling
10/09/2003US20030190251 High-strength micro-alloy steel and process for making same
10/09/2003US20030188811 High tensile strength cold rolled steel sheet having excellent strain age hardening characteristics and the production thereof
10/09/2003US20030188806 Decarburization annealing followed by coating of annealing separator and final annealing, wherein alumina powder calcined at temperature of 900-1,400 degrees C is used as annealing separator
10/09/2003US20030188805 Last forming pass of hot rolling is carried out in the mixed region austenite/ferrite wherein total deformation epsilon H achieved during rolling in mixed region austenite/ferrite is less-than 35%; thicker magnetic steel sheet
10/08/2003EP1350859A1 High-tensile strength hot-rolled steel sheet excellent in elongation properties and stretch flangeability, and producing method thereof
10/08/2003CN1123642C Relaxation-separation-phase change control tech for producing high-strength low-alloyed steel
10/08/2003CN1123403C Method and equipment for rolling hot-rolling wide strip steel in small sized strip steel prodn. equipment
10/07/2003US6630103 Ultra-high-strength precipitation-hardenable stainless steel and strip made therefrom
10/02/2003WO2003080885A1 Cast piece and sheet of ferritic stainless steel, and method for production thereof
10/02/2003US20030183304 Excellent in high magnetic field core loss property containing, in percentage by weight, not greater than 0.005% of C, 2.0-7.0% of Si, not greater than 0.2% of Mn, one or both of S and Se in a total amount of not greater than 0.005%,
10/02/2003US20030183292 Stainless steel oil feeding pipe
10/02/2003DE10229994C1 Production and/or heat treatment of a spatial composite material made from at least two materials with different thermal expansion coefficients comprises heating the composite during its production and/or heat treatment, and cooling
10/01/2003EP1348772A1 Method of processing and heat-treating NbC-added Fe-Mn-Si-based shape memory alloy
10/01/2003EP1348771A1 High strength hot rolled steel plate excellent in enlargeability and ductility and method for production thereof
10/01/2003EP1200635B1 High tensile steel band or sheet and method for the production thereof
10/01/2003EP1026275B1 High-strength, high-toughness rolled shape steel and production method thereof
10/01/2003CN1446295A Stainless steel oil feeding pipe
10/01/2003CN1446129A Method and installation for producing thin flat products
10/01/2003CN1445372A Processing heat treatment method of Fe-Mn-Si series shape memory alloy which adding NbC
09/2003
09/25/2003WO2003078668A1 Process for producing high tensile hot-dip zinc-coated steel sheet of excellent ductility and antifatigue properties
09/25/2003US20030180554 Unidirectional silicon steel sheet of ultra-low iron loss and method for production thereof
09/25/2003US20030180553 Applying liquids comprising phosphate and silica sols, or alumina sols and boric acid, to alloys, then baking and annealing improve bonding strength and effieciency of magnetic cores
09/25/2003US20030180175 Corrosion-resisting and wear-resisting alloy and device using the same
09/25/2003US20030180174 High-strength steel pipe of API X65 grade or higher and manufacturing method therefor
09/25/2003US20030178111 Rolling the steel material, quenching and tempering the same to establish a relationship between content of molybdenum in the carbides precipitated at austenite grain boundaries and austenite grain size can be defined; useful for under oil well
09/25/2003US20030178110 Rolling temperature of the first deformation stage in the blooming train, in the upper austenite region, leads, reduction of 40-70%, to the transformation of the cast strand to a rolled structure by complete recrystallization
09/25/2003CA2475950A1 Process for producing high tensile hot-dip zinc-coated steel sheet of excellent ductility and antifatigue properties
09/24/2003EP1347072A1 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
09/24/2003EP1347071A1 Cold worked aluminium killed steel sheet and process for manufacturing packaging from this metal sheet
09/24/2003EP1346780A1 Hot rolling method and hot rolling line
09/24/2003EP1346069A1 Magnetic steel sheet with non-oriented grains, method for making steel plates and resulting steel plates
09/24/2003EP1346068A1 Process for the production of grain oriented electrical steel
09/24/2003EP0929883B1 Display element for use in a magnetic anti-theft system
09/24/2003CN1443867A Austenitic system stainless steel with excellent resistance to aqueous vapour oxidation and its making method
09/24/2003CN1443610A Production process of flexible shaft steel wire
09/23/2003US6624556 Fe-Ni alloy used for a shadow mask and a method for producing a shadow mask
09/23/2003US6623691 Ultra-low carbon steel composition, the process of production of an ULC BH steel product and the product
09/23/2003US6623573 Steel sheet and method for manufacturing the same
09/23/2003US6622778 Method for the direct production of scale-free thin metal strip
09/18/2003WO2003076676A2 Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steels
09/18/2003WO2003076675A1 Steel plate subjected to heat treatment and process for producing the same
09/18/2003WO2003076673A2 High-resistant, low-density hot laminated sheet steel and method for the production thereof
09/18/2003US20030175524 Electrical sheet having insulating coating and insulating coating
09/18/2003US20030175145 Comprises hot/cold rolling steel sheet, pickling, then annealing
09/18/2003US20030172531 Method of manufacturing flat wire coil springs to improve fatigue life and avoid blue brittleness
09/17/2003EP1344439A1 A high strength steel plate having superior electric and magnetic shielding property, and method making the same
09/17/2003CN1442270A Non copper plating solid welding wire used for carbon dioxide gas protective arc welding
09/17/2003CN1121502C Super fine organization steel and method for mfg. same
09/16/2003US6620377 High hardness stainless steel for screws used in magnetic memory devices
09/16/2003US6619849 Rolling bearing unit for supporting wheel
09/12/2003WO2003074742A1 A method for manufacturing an ultra-high-tensile pressure turned sheet metal product of steel
09/12/2003WO2003028912A3 Method and system for thermal treatment of rails
09/11/2003US20030168137 For producing plates of fine-particle steel
09/11/2003US20030168136 Steel wire and method of manufacturing the same
09/10/2003EP1342812A1 Magnesium oxide particle aggregate
09/10/2003EP1342807A2 Austenitic stainless steel tube and manufacturing method thereof
09/10/2003EP1342801A1 High tensile strength hot dip plated steel sheet and method for production thereof
09/10/2003EP1342515A1 Process for the manufacture of closed, hardened sections with no cross-sectional limits
09/10/2003EP1341937A1 Method for producing a hot rolled strip made of a steel comprising a high content of manganese
09/09/2003US6617050 Low density and high ductility alloy steel for a golf club head
09/09/2003US6616779 Workpiece made from a chromium alloy
09/09/2003US6616778 The slab is rolled in the austenitic range in the preliminary rolling device and, after rolling in the austenitic range, is cooled to a temperature at which the steel has a ferritic structure, and rolled
09/09/2003US6615476 Method of manufacturing a hollow shaft having a flange at one end thereof
09/04/2003WO2003072841A1 Atmosphere corrosion resisting steel plate having high strength and excellent bending formability and method for production thereof
09/04/2003US20030164360 Non-copper-plated solid wire for carbon dioxide gas shielded arc welding
09/04/2003US20030164211 Fe-ni or fe-ni-co or fe-ni-co-cu alloy strip with improved cuttability
09/03/2003EP1339889A1 STEEL PLATE TO BE PRECIPITATING TiN+CuS FOR WELDED STRUCTURES, METHOD FOR MANUFACTURING THE SAME, WELDING FABRIC USING THE SAME
09/03/2003EP1339880A1 Method for making a strip or a workpiece cut out from a cold rolled maraging steel strip
09/03/2003CN2570300Y Speed regulation and controlled blowing cooling device
09/03/2003CN1120247C Nanometer grain low-alloy steel plate production method
09/02/2003US6613163 Steel band with good forming properties and method for producing same
09/02/2003US6613160 Method to produce grain-oriented electrical steel sheet having high magnetic flux density
08/2003
08/28/2003WO2003070997A1 Steel sheet for inner magnetic shield and method of producing the same, inner magnetic shield, and color cathode ray tube
08/28/2003US20030160558 Cold rolling; etching slits; wrinkle resistance; magnetic shields
08/28/2003US20030159765 Nano-composite martensitic steels
08/27/2003EP1338667A1 Composite structure type high tensile strength steel plate, plated plate of composite structure type high tensile strength steel and method for their production
08/27/2003EP1338666A1 Material for shadow mask, method for production thereof, shadow mask comprising the material and picture tube using the shadow mask
08/27/2003EP1338665A1 High tensile hot rolled steel sheet and method for production thereof
08/27/2003EP1337678A1 Steel plate to be precipitating tin+mns for welded structures, method for manufacturing the same and welding fabric using the same
08/27/2003EP1337673A1 Method for producing a cold rolled strip that is cold formed with low degrees of deformation
08/27/2003EP1337453A1 Endless yarn tensioning strip and method for producing the same
08/27/2003EP1337362A1 A method of producing steel strip
08/27/2003EP1194598B1 Use of a steel for producing components of picture tubes and method for producing components of picture tubes made of sheet steel
08/27/2003CN1119429C Hot-rolled steel plate and its manufacture
08/27/2003CN1119428C High strength cold rolled steel plate and method for peoducing same
08/27/2003CN1119426C Low iron-loss thin non-oriented silicon steel plates with excelent machining performance and preparation thereof
08/21/2003WO2003069010A1 Steel sheet for container excellent in formability and properties at weld, and method for producing the same
08/21/2003WO2003069007A1 Low thermal expansion alloy thin sheet and its production method
08/21/2003WO2003069006A1 Mask material for color picture tube, its production method, mask for color picture tube, and color picture tube
08/21/2003WO2003035915A8 Method for producing monocrystalline metallic wire
08/21/2003US20030155052 High strength steel pipe for an air bag and a process for its manufacture
08/21/2003US20030155048 Electroplating annealed thin sheets and method for producing the same