Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
05/2003
05/08/2003US20030084973 Process for the production of a strip of hot rolled steel of very high strength, usable for shaping and particularly for stamping
05/08/2003US20030084972 For a metal sheet, composed of a finish rolling mill, a leveler, and a cooling apparatus installed from upstream to downstream in a metal sheet transporting direction; finer refining crystal grains
05/08/2003US20030084966 The matrix phase contains tempered martensite, tempered martensite and ferrite, tempered bainite, or tempered bainite and ferrite, and the second phase comprises 1 to 30% of martensite at an area ratio based on the entire structure
05/07/2003EP1308532A2 Ferritic stainless steel sheet having excellent deep-drawability and brittle resistance to secondary processing and method for making the same
05/07/2003CN1415775A Method for producing superfine integrated ferrite grain and steel of retained austenite
05/07/2003CN1107736C Stentor cemented steel for gear and thermal working tech
05/07/2003CN1107734C Non-orientation electromagnetic steel sheet possesing high magnetic permeability and its mfg. method
05/07/2003CN1107731C Method for mfg. cold rolled shadow mask steel sheet using pack annealing tech
05/06/2003US6558815 Hot dip Galvanized steel plate excellent in balance of strength and ductility and in adhesiveness between steel and plating layer
05/06/2003US6558486 Method of producing cold rolled steel strip
05/06/2003US6558483 Cu precipitation strengthened steel
05/06/2003US6558479 Magnetostriction properties induced by high tension of insulation film and imposition of fine strains by laser irradiation
05/06/2003US6557622 Differential quench method and apparatus
05/02/2003EP1306600A1 Stainless steel oil feeding pipe
05/02/2003EP1306456A1 Cold rolled steel sheet and hot rolled steel sheet excellent in bake hardenability and resistance to ordinary temperature aging and method for their production
05/02/2003EP1305122A1 Production method and installation for producing thin flat products
05/02/2003EP1169486B1 Method of producing a hot-rolled strip
05/02/2003EP0885978B1 Steel sheet for double wound pipe and method of producing the pipe
05/01/2003WO2003035922A1 Method for press working, plated steel product for use therein and method for producing the steel product
05/01/2003WO2003035921A1 Martensitic stainless steel and method for manufacturing same
05/01/2003WO2003035915A1 Method for producing monocrystalline metallic wire
05/01/2003US20030082066 Powder metallurgical process of preparing a sheet from a powder having an intermetallic alloy composition such as an iron, nickel or titanium aluminide; use as electrical resistance heating element having improved properties
05/01/2003US20030079815 To be made into steel wires for tire reinforcement, steel wires for prestressed concrete, and steel wires for ropes
04/2003
04/30/2003CN1414119A Method of producing common orientation silicon steel
04/30/2003CN1107121C Antibiotic parts and its producing process
04/29/2003US6554925 Method for manufacturing cold-rolled steel sheet
04/29/2003US6554919 Also good molding characteristics to produce parts by stamping, profiling and hydroforming
04/29/2003US6554918 High-strength hot-rolled steel sheet superior in stretch flange formability and method for production thereof
04/29/2003CA2073131C Improved drawing-quality steel, process for making sheet metal for drawing and sheet metal thereof
04/24/2003WO2003033746A1 Method for the production of non-grain oriented electric sheets
04/24/2003WO2003033185A1 Method of manufacturing steel plate
04/24/2003WO2003018856A3 Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steels
04/24/2003WO1996002676A8 Cold formed high-strength steel structural members
04/24/2003US20030077479 Low density and high ductility alloy steel for a golf club head
04/24/2003US20030077200 Enhanced radiopaque alloy stent
04/24/2003US20030075250 Bar or wire product for use in cold forging and method for producing the same
04/23/2003EP1304393A1 Piston ring excellent in resistance to scuffing, cracking and fatigue and method for producing the same, and combination of piston ring and cylinder block
04/23/2003CN1413267A Advanced alloy fiber and process of making
04/23/2003CN1412334A Production process of wear-resisting alloy steel cutting ring
04/23/2003CN1412333A Thin steel plate with good machining performance and formed precision and its mfg. method
04/22/2003US6551419 Hot-rolled steel wire and rod for machine structural use and a method for producing the same
04/22/2003US6550122 Method of manufacturing laminated ring
04/17/2003WO2003031670A1 Steel sheet for container and method of producing the same
04/17/2003WO2003031669A1 High-strength thin steel sheet drawable and excellent in shape fixation property and method of producing the same
04/17/2003US20030072671 Nanocarbide precipitation strengthened ultrahigh strength, corrosion resistant, structural steels
04/16/2003EP1302556A1 Stainless steel sheet product good of delayed fracture-strength and manufacturing method thereof
04/16/2003EP1301639A2 Method and apparatus for the direct production of scale-free thin metal strip
04/16/2003CN1410580A Cold rolling electromagnetic pure iron plate having very low coercive force and production method thereof
04/16/2003CN1410561A Deep cold rolling method of nano crystal metal material
04/16/2003CN1105785C Process for producing of grain oriented electrical steel strips
04/16/2003CN1105784C Method of soft annealing high carbon steel
04/15/2003US6547893 Fe-Ni based material for shadow mask
04/15/2003US6547890 Steel wire rod for cold forging and method for producing the same
04/15/2003US6547846 Wear resistance, hardness, impact strength; powder metallurgy
04/15/2003US6546771 Hot rolling, cold rolling cycles; stainless steels
04/10/2003WO2003029504A2 High-strength duplex/triplex steel for lightweight construction and use thereof
04/10/2003WO2003028912A2 Method and system for thermal treatment of rails
04/10/2003US20030068521 Steel plate and a hot dip galvanizing steel plate having superior electric and magnetic shielding property
04/10/2003US20030066580 Finishing rolling; controlling temperature, crystal structure; corrosion resistance
04/10/2003US20030066576 Quenched and tempered steel wire with excellent cold forging properties
04/10/2003US20030066575 High-strength steel wire excelling in resistance to strain aging embrittlement and longitudinal cracking, and method for production thereof
04/09/2003EP1299569A1 Ferritic stainless steel for ferromagnetic parts
04/09/2003EP1299568A1 Fe-ni or fe-ni-co or fe-ni-co-cu alloy strip with improved cuttability
04/09/2003EP1129229B1 Steel, use of the steel, product made of the steel and method of producing the steel
04/09/2003CN1105193C Fe-Cr-Ni alloy plate and Fe-Cr-Ni alloy for electronic gun electrode
04/08/2003US6546310 Process and device for controlling a metallurgical plant
04/08/2003US6544356 Steel sheet for use as an electrode-supporting frame member of a color picture tube and manufacturing method thereof
04/08/2003US6544355 Continuous casting, forming; uniformity
04/08/2003US6544354 High-strength steel sheet highly resistant to dynamic deformation and excellent in workability and process for the production thereof
04/08/2003CA2109397C Method of and apparatus for manufacturing hot rolled steel strips, in particular from strip-shaped continuously cast primary material
04/03/2003WO2003027344A1 Use of an austenitic stainless steel
04/03/2003WO2003027343A1 Ferritic stainless steel and use thereof in the manufacture for high temperature resistant products
04/03/2003WO2003027337A1 Improved angular channel processing
04/03/2003US20030064245 Clad steel rolled section for reinforcing concrete and method of production
04/03/2003US20030063996 Suitable for automotive chassis parts
04/03/2003US20030063995 For use in shafts of machines such as printers
04/03/2003US20030062147 Method of continuously casting electrical steel strip with controlled spray cooling
04/03/2003DE10212400C1 Production of molded components comprises cold forming and induction heating of molding to produce recrystallization along seam and lower resistance to further working and cooling
04/03/2003CA2461869A1 Ferritic stainless steel and use thereof in the manufacture for high temperature resistant products
04/02/2003EP1298225A1 Method for producing unidirectional silicon steel sheet free of inorganic mineral coating film
04/02/2003EP1082733B1 Method for preparing a magnetic material by forging and magnetic material in powder form
04/02/2003CN1408028A Method of heating metal strip and apparatus thereof
04/02/2003CN1407119A Production of grain orientation electromagnetic steel plates
04/02/2003CN1104508C High carbon steel wire rod excellent in drawability and fatigue resistance after wire drawing
04/02/2003CN1104507C Grain-oriented silicon-iron plate with excellent tectorial membrane property and magnetic property and its manufacture
04/02/2003CN1104506C Hot-rolled steel plate having superfine grains for machining, and mfg. method thereof
04/01/2003US6540848 High strength, high toughness, seamless steel pipe for line pipe
04/01/2003US6540846 High-strength hot-rolled steel sheet superior in stretch-flanging performance and fatigue resistance and method for production thereof
03/2003
03/27/2003WO2003025241A1 Hot-rolled steel sheet with good ultra low temperature toughness and the method of the same
03/27/2003WO2003025240A1 Method for making rolled and welded tubes comprising a final drawing or hydroforming step and resulting rolled tube
03/27/2003WO2003025239A1 Invar alloy wire excellent in strength and turning characteristics and method for production thereof
03/27/2003WO2003025232A1 Method for producing a metal strip from an iron-nickel alloy for tensioned shadow masks
03/27/2003US20030059643 High strength steel plate having superior electric and magnetic shielding property, and method making the same
03/27/2003US20030057695 Stainless-steel pipe with excellent suitability for secondary processing for automotive structural member
03/26/2003EP1295959A1 Fe-cr-al based alloy foil and method for producing the same
03/26/2003EP1294956A1 Corrosion resistant material
03/26/2003EP1045737B1 Process and device for producing a high-strength steel strip
03/26/2003EP1020247B1 Clad material and method of manufacturing the material
03/26/2003CN1405352A Cold-rolled steel plate and galvanized steel plate with exceuent forming property, surface shaping property and anti-rabbing and manufacture method thereof
03/26/2003CN1405350A High-strength steel wire with anti-strain-ageing-brittle and anti-longitudinal-crack and manufacture method thereof