Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
11/2008
11/20/2008US20080283154 Hot dip galvanized high strength steel sheet excellent in plating adhesion and hole expandability and method of production of same
11/20/2008DE10023488B4 Verfahren zur Herstellung von geschweißten Stahlrohren hoher Festigkeit, Zähigkeits- und Verformungseigenschaften A process for the production of high strength welded steel tubes, toughness and deformation properties
11/19/2008EP1992708A1 Process for producing grain-oriented magnetic steel sheet with excellent magnetic property
11/19/2008CN101310034A Highly strong, non-oriented electrical steel sheet and method for manufacture thereof
11/19/2008CN101310032A Bake-hardenable cold rolled steel sheet with superior strength, galvannealed steel sheet using the cold rolled steel sheet and method for manufacturing the cold rolled steel sheet
11/19/2008CN101310031A Bake-hardenable cold rolled steel sheet with superior strength and aging resistance, gal-vannealed steel sheet using the cold rolled steel sheet and method for manufacturing the cold rolled steel shee
11/19/2008CN101310029A Method and finishing train for hot-rolling starting material
11/19/2008CN101307411A Nb-containing high-carbon and high-duty steel based on sheet bar process and method for manufacturing same
11/19/2008CN101306501A Preparation method of high intensity Ti6Al4V diphase reinforced composite material
11/19/2008CN101306434A Preparation method of low carbon low silicon no-aluminum half-technique non oriented electrical steel
11/19/2008CN101306429A Preparation method of micron and sub-micron austenite crystal material
11/19/2008CN100434564C Hot press forming method, and a plated steel material therefor and its manufacturing method
11/19/2008CN100434563C Cold-formable chrome steel
11/19/2008CN100434562C Chromium-containing high-strength pipeline steel hot-rolled plate
11/19/2008CN100434557C Low-carbon high-strength hot rolling wire with compound reinforced ultrafine grains and its production process
11/18/2008CA2330010C Steel sheets, hot-dipped steel sheets and alloyed hot-dipped steel sheets as well as method of producing the same
11/13/2008WO2008136354A1 Austenitic stainless steel excellent in intergranular corrosion resistance and stress corrosion cracking resistance, and method for producing austenitic stainless steel
11/13/2008WO2008135117A1 Production of superplastic uhc lightweight structural steels having aluminum content and the processing thereof by hot forming
11/12/2008EP1990812A1 Amorphous transformer for electric power supply
11/12/2008EP1990436A1 Wire with excellent suitability for drawing and process for producing the same
11/12/2008EP1990431A1 Method of manufacturing annealed, very high-resistance, cold-laminated steel sheets, and sheets produced thereby
11/12/2008EP1990430A1 High-strength hot rolled steel plate and manufacturing method thereof
11/12/2008EP1791985B1 Nonoriented electrical steel sheet excellent in core loss
11/12/2008CN101305110A High-tensile-strength steel sheet having reduced acoustical anisotropy, excellent weldability, yield stress of 450 MPa or larger and tensile strength of 570 MPa or larger and its production method
11/12/2008CN100432261C Steel plate and welded steel tube exhibiting low yield ratio, high strength and high toughness and method for producing thereof
11/12/2008CN100432244C Method for producing medium-carbon steel deformation induced ferrite
11/12/2008CN100431724C Cold-rolling nicking reinforcing bar with rib high-strength and low relaxation, production and production line thereof
11/06/2008WO2008133337A1 Process for producing unidirectionally grain oriented electromagnetic steel sheet
11/06/2008WO2008133062A1 High-strength hot-dip galvanized steel sheet and method for producing the same
11/06/2008WO2008132882A1 High-strength hot-rolled steel plate for line pipes excellent in low-temperature toughness and process for production of the same
11/06/2008WO2008132303A1 Steel for tool-less hot forming or quenching with improved ductility
11/06/2008WO2008021635A3 Metal gasket and method of making
11/06/2008US20080274008 Corrosion-Resistant Steel Excellent in Toughness of Base Metal and Weld Portion, and Method of Manufacturing the Same
11/06/2008US20080271824 Spring Steel Wire
11/06/2008US20080271819 Electrical steel; controlling concentration of bismuth; annealing, cold rolling, hot rolling, heating, decarboxylation; process control
11/06/2008CA2684031A1 High tensile-strength galvanized steel sheet and process for manufactutring high tensile-strength galvanized steel sheet
11/06/2008CA2680623A1 Steel for tool-less hot forming or quenching with improved ductility
11/06/2008CA2679623A1 High strength hot rolled steel products for line-pipes excellent in low temperature toughness and production method of the same
11/05/2008CN101300369A Seamless steel pipe for line pipe and method for producing same
11/05/2008CN100430511C Cold rolled strip steel for shadow mask and its making process
11/05/2008CN100430493C Method for manufacturing high silicon grain-oriented electrical steel sheet with superior core loss property
11/05/2008CN100430492C Method for producing general-oriented siliconsteel
11/04/2008US7445750 Toughness; cutting tools and of metrological instruments
10/2008
10/30/2008WO2008129490A2 Process for the production of a grain oriented magnetic strip
10/30/2008US20080264530 Quenching by cooling; self tempering; for automobile steel axle units such as constant-velocity universal joint and hub, and machine engine parts such as crankshaft
10/29/2008EP1984527A2 Method of production of high-strength low-alloyed steel pipes
10/29/2008EP1257414B9 Use of a dimensionally stable iron-chrome-aluminum film
10/29/2008CN101297050A Production method and production system of directional electromagnetic steel plate having excellent magnetic characteristics
10/29/2008CN101297049A Method for producing hot strip with a multiphase structure
10/29/2008CN101294260A High-strength stainless cold-rolled steel strip and method for manufacturing same
10/29/2008CN101294239A Reutilization method for annealing oven protective atmosphere
10/28/2008US7442268 Method of manufacturing cold rolled dual-phase steel sheet
10/28/2008US7442260 Superior in magnetic characteristics; extremely low core loss by scanning by a small focused laser beam spot; used as transformer core materials
10/23/2008WO2008126945A1 Hot-dip metal coated high-strength steel sheet for press working excellent in low-temperature toughness and process for production thereof
10/23/2008WO2008126944A1 Steel material having excellent high-temperature strength and toughness, and method for production thereof
10/23/2008WO2008126911A1 Method of continuous annealing for steel strip with curie point and continuous annealing apparatus therefor
10/23/2008WO2008126910A1 Steel material having excellent high temperature properties and excellent toughness, and method for production thereof
10/23/2008US20080257456 Improved resistances to deformation, atmospheric corrosion and embrittlement; high strength, good anisotropy and welding capacity; automotive industry; casting a liquid steel into a strip, hot rolling wherein the copper is in a solid solution with the ferrite or austenite matrix; cooling, coiling
10/23/2008US20080256772 Method and plant for manufacturing forks for lift trucks
10/23/2008CA2683739A1 Hot dip plated high strength steel sheet for press forming use superior in low temperature toughness and method of production of the same
10/22/2008EP1983069A1 Fire-resistant high-strength rolled steel material and method for production thereof
10/22/2008EP1983065A1 Method for manufacturing bottle member for air bag inflator
10/22/2008EP1982831A2 Clad textured metal substrate for forming epitaxial thin film thereon and method for manufacturing the same
10/22/2008EP1982830A2 Clad textured metal substrate for forming epitaxial thin film thereon and method for manufacturing the same
10/22/2008EP1527829B1 Cooling device,manufacturing method, and manufacturing line for hot rolled steel band
10/22/2008CN101292055A Steel with great toughness for welding heat affected zone
10/22/2008CN101289925A Heat insulated tubing machining process
10/22/2008CN101289730A 13Cr steel for 110ksi high grade steel and high CO2-corrosion resistant tubing and casing, tubing and casing and method for making same
10/22/2008CN101289729A Nickel-free metastable austenitic stainless steel with TRIP effect
10/22/2008CN101289728A Low-yield ratio, high heat input welding, high-strength and high ductility steel plate and method of manufacture
10/22/2008CN101289726A Biphase antibiotic stainless steel and method for making same
10/22/2008CN100427615C Method for raising metal and alloy strength
10/22/2008CN100427614C Steel sheet for containers, and manufacturing method therefor
10/21/2008CA2436611C High strength hot rolled steel plates having excellent bore expandability and ductility and process for producing the same
10/21/2008CA2373064C Process for producing welded steel pipes with a high degree of strength, ductility and deformability
10/16/2008WO2008123483A1 Pearlite steel rail of high internal hardness type excellent in wear resistance and fatigue failure resistance and process for production of the same
10/16/2008WO2008123397A1 Case-hardened steel pipe excellent in workability and process for production thereof
10/16/2008WO2008123336A1 Ultra-thin cold-rolled steel sheet for building material and process for production of the same
10/16/2008US20080251168 Exterior panels for automobile bodies; controlling carbon concentration as crystals; homogenizing heat treatment
10/16/2008US20080251167 Exterior panels for automobile bodies ; homogenizing heat treatment
10/16/2008CA2679556A1 Internal high hardness type pearlitic rail with excellent wear resistance and rolling contact fatigue resistance and method for producing same
10/15/2008EP1979496A1 Strip of hot rolled micro-alloyed steel for obtaining finished pieces by cold pressing and shearing
10/15/2008EP1301639B1 Method and apparatus for the direct production of scale-free thin metal strip
10/15/2008CN101287853A Seamless steel pipe for line pipe and method for producing same
10/15/2008CN101287852A Seamless steel pipe for line pipe and method for producing same
10/15/2008CN100425726C Method for producing aluminum alloy composite material for heat exchanger and aluminum alloy composite material
10/14/2008US7435307 Fe-Ni based permalloy and method of producing the same and cast slab
10/14/2008US7435304 Coating composition, and method for manufacturing high silicon electrical steel sheet using thereof
10/14/2008US7434437 Method of making a metallic thin wire for a medical tool
10/09/2008DE102007022487B3 Manufacturing forged steel screws with excellent tensile strength and high ultimate extension, employs specified sequence of heat treatments and deformation
10/08/2008EP1978121A1 HIGH-STRENGTH STEEL SHEET OF 450 MPa OR HIGHER YIELD STRESS AND 570 MPa OR HIGHER TENSILE STRENGTH HAVING LOW ACOUSTIC ANISOTROPY AND HIGH WELDABILITY AND PROCESS FOR PRODUCING THE SAME
10/08/2008EP1978113A1 High-strength galvannealed sheet steels excellent in powdering resistance and process for production of the same
10/08/2008EP1584701B1 Steel product for induction hardening, induction-hardened member using the same, and methods for producing them
10/08/2008CN101283108A The precipitation hardening cold rolled steel sheet having excellent yield ratios, and the method for manufacturing the same
10/08/2008CN101280391A High-strength tough hydraulic prop seamless steel pipe
10/08/2008CN101280352A High-safe high-precision producing method of thermoforming martensitic steel parts
10/08/2008CN100424193C GH696 alloy vane ausform forming process
10/07/2008US7431781 Method for forming a common-rail injection system for diesel engine
10/07/2008CA2429439C High-strength steel excellent in low temperature toughness and toughness at weld heat-affected zone, method for producing the same, and method for producing high-strength steel pipe
10/02/2008WO2008117721A1 Process for producing bend pipe for line pipe and bend pipe for line pipe