| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 10/02/2008 | WO2008117680A1 Oil well pipe for expansion in well and two-phase stainless steel for use as oil well pipe for expansion |
| 10/02/2008 | US20080240969 High Strength Hot Rolled Steel Sheet Containing High Mn Content with Excellent Workability and Method for Manufacturing the Same |
| 10/02/2008 | US20080236709 Cold-worked steels with packet-lath martensite/austenite microstructure |
| 10/02/2008 | US20080236237 Method of making a metallic thin wire for a medical tool |
| 10/02/2008 | US20080236235 Heat-Treatment Apparatus for Steel Plate and Manufacturing Line of Steel Plate Having the Heat-Treatment Apparatus |
| 10/01/2008 | EP1974065A1 Galvanized rolling-hardened cold-rolled flat product and process for producing it |
| 10/01/2008 | EP1974064A1 Method and device adjusting targeted combinations of properties of polyphase steel |
| 10/01/2008 | CN101275201A Oriented electric steel plate and manufacturing method thereof |
| 10/01/2008 | CN101275198A Middle code non-oriented electrical steel with fine surface and manufacturing method thereof |
| 10/01/2008 | CN101275197A High-strength rebar and manufacturing process thereof |
| 10/01/2008 | CN100422374C Anti-sulfur drill rod and method for manufacturing the same |
| 10/01/2008 | CN100422371C Chromic-nickel-free high-strength high ductility structural steel and manufacturing method thereof |
| 10/01/2008 | CN100422370C High tensile steel excellent in toughness of welded zone and offshore structure |
| 10/01/2008 | CN100422352C Very high mechanical strength steel and method for making a sheet thereof coated with zinc or zinc alloy |
| 09/30/2008 | WO2008123025A1 Expandable oil well pipe to be expanded in well and process for production of the pipe |
| 09/30/2008 | US7429302 Stainless steel sheet for welded structural components and method for making the same |
| 09/30/2008 | CA2387322C High-ductility steel sheet excellent in press formability and strain age hardenability, and method for manufacturing the same |
| 09/24/2008 | EP1972698A1 Hot-dip zinc-coated steel sheets and process for production thereof |
| 09/24/2008 | CN101270455A 1000MPa grade nickel-saving type metastable austenite stainless steel |
| 09/24/2008 | CN101270451A Plastic mold steel and method for manufacturing same |
| 09/24/2008 | CN101270441A Economy type X80 pipeline steel and producing method thereof |
| 09/24/2008 | CN101270440A Economy type X70 pipeline steel and producing method thereof |
| 09/24/2008 | CN101270439A High-strength hot-rolled armor plate and method for manufacturing same |
| 09/24/2008 | CN101270438A Normalized steel for resistance welding petroleum case pipe with low yield ratio, resistance welding casing tube and its manufacturing method |
| 09/24/2008 | CN101270437A High-tension steel with excellent weldability and plastic deformation ability |
| 09/24/2008 | CN101270436A Hot-rolled polyphase steel plate and method for manufacturing same |
| 09/24/2008 | CN100420769C Rolling controlled and cooling controlled steel for hydraulic power station penstock and manufacture method thereof |
| 09/24/2008 | CN100420767C Ferritic stainless steel and martensitic stainless steel both being excellent in machinability |
| 09/24/2008 | CN100420764C Steel product excellent in fatigue characteristics and method for production thereof |
| 09/24/2008 | CN100420758C High strength seamless steel pipe excellent in hydrogen-induced cracking resistance and its production method |
| 09/24/2008 | CN100420757C Method for preparing sputtering target material |
| 09/23/2008 | CA2424491C High-strength steel sheet and high-strength steel pipe excellent in deformability and method for producing the same |
| 09/18/2008 | WO2008110670A1 Steel for hot working or quenching with a tool having an improved ductility |
| 09/18/2008 | WO2008110133A1 Method for the treatment of metal sheets |
| 09/18/2008 | US20080223491 hot rolled steel sheet which contains Cu, Ni, Cr, Mo, Nb, V, Ca B and C, Si, Mn, Al, Ti, N, and S; excels in properties demanded in press working, such as shape freezing ability, hole-expandability, and bendability, even though it has a high tensile strength; automobiles |
| 09/17/2008 | EP1969151A1 Deformable lightweight structural steel |
| 09/17/2008 | EP1969148A1 Method for manufacturing high strength steel strips with superior formability and excellent coatability |
| 09/17/2008 | CN101264681A Hot-dip galvannealed steel sheet, steel sheet treated by hot-dip galvannealed layer diffusion and a method of producing the same |
| 09/17/2008 | CN100419113C High-strength deformed steel bar and method of manufacturing same |
| 09/17/2008 | CN100419109C Manufacturing method of low carbon 700 MPa composite fertified ultrafine crystal band steel |
| 09/17/2008 | CN100419108C Production method of 250 MPa grade cold rolled magnetic pole steel |
| 09/17/2008 | CN100419092C Method for preparing superfine multiple-phase structure high-carbon steel |
| 09/16/2008 | US7425240 Method for the production of a siderurgical product made of carbon steel with a high copper content |
| 09/12/2008 | WO2008109073A1 Method and apparatus to relieve residual stress or distortion in a heat processed article by applying first heat and then pressure |
| 09/12/2008 | WO2008108483A1 Thin steel sheet excelling in strength and toughness uniformity, process for producing the same, and apparatus therefor |
| 09/12/2008 | WO2008108333A1 Thick high-strength steel plate and process for producing the same |
| 09/11/2008 | US20080219878 High strength, toughness, noncracking, corrosion resistance; quenching, tempering |
| 09/11/2008 | US20080216925 Method and apparatus for producing scale-free sheet metal |
| 09/10/2008 | EP1966403A1 Non-oriented electrical steel sheets with improved magnetic property and method for manufacturing the same |
| 09/10/2008 | EP1966399A2 Method for producing a cold-rolled strip from stainless steel with a ferritic structure and a reduced susceptibility to ridging |
| 09/10/2008 | CN101263233A Method for production of sheets of austenitic iron/carbon/manganese steel and sheets produced thus |
| 09/04/2008 | WO2008105990A1 Corrosion resistant alloy weldments in carbon steel structures and pipelines to accommodate high axial plastic strains |
| 09/04/2008 | WO2008105216A1 Electric resistance welded steel pipe prior to heat treatment and process for manufacturing the same |
| 09/04/2008 | US20080210346 Method of Manufacturing Super Formable High Strength Steel Sheet |
| 09/04/2008 | CA2676940A1 Corrosion resistant alloy weldments in carbon steel structures and pipelines to accommodate high axial plastic strains |
| 09/03/2008 | CN101258257A High-toughness wear-resistant steel exhibiting little hardness change in service and process for production thereof |
| 09/03/2008 | CN101255528A Niobium-containing steel plate with excellent ultralow-temperature flexibility and rolling method thereof |
| 09/03/2008 | CN101255490A After-forging grain-refining strength-toughening treatment process of 1Mn18Cr18N steel guard ring for generating set |
| 09/03/2008 | CN100415922C Steel pipe for an airbag system and a method for its manufacture method |
| 09/02/2008 | US7419634 For use in a magnetic head, a magnetic shielding material, an iron core of a transformer or the like and having excellent magnetic properties |
| 09/02/2008 | CA2450521C Method for manufacturing high chromium system seamless steel pipe |
| 08/28/2008 | WO2008102899A1 Processes for production of steel sheets for cans |
| 08/28/2008 | WO2008102006A1 Packaging steel, method of producing said packaging steel and its use |
| 08/28/2008 | WO2008101567A1 Method and apparatus for the temperature-controlled shaping of hot-rolled steel material |
| 08/28/2008 | US20080202652 Ferrous seal sliding parts and producing method thereof |
| 08/28/2008 | US20080202645 Multi-phase steel sheet excellent in hole expandability and method of producing the same |
| 08/28/2008 | US20080202639 Hot-rolled steel sheet and cold-rolled steel sheet and manufacturing method thereof |
| 08/27/2008 | EP1961832A1 Use of a steel alloy as a substance for producing dynamically loaded tube components and tube component |
| 08/27/2008 | EP1960563A1 High strength thin steel sheet having excellent plating and elongation property and the method for manufacturing the same |
| 08/27/2008 | EP1960562A1 Tole d'acier laminee a froid de haute resistance possedant une excellente propriete de formabilite et de revetement, tole d'acier plaquee de metal a base de zinc fabriquee a partir de cette tole et procece de fabrication de celle-ci |
| 08/27/2008 | CN101253344A Uniform speed universal joint |
| 08/27/2008 | CN101250619A Method for preparing FeCoV series alloy fine crystalline semi-manetic material |
| 08/27/2008 | CN100413990C Dedicated tungsten-containing bainite forged steel for railway frog crossing and manufacturing method thereof |
| 08/27/2008 | CN100413980C Method for producing unidirectional silicons steel sheet free of inorganic mineral coating film |
| 08/26/2008 | US7416622 Method and system for thermal treatment of rails |
| 08/26/2008 | US7416621 introducing compressive stresses or relieving compressive stresses in selected surface segments to cause deformation, then heating to an austenitizing temperature using radiation beams and allowing the heated surface segment to quench to martensite |
| 08/26/2008 | US7416619 Application of an alloy in kitchen utensil products |
| 08/26/2008 | US7416617 High strength seamless steel pipe excellent in hydrogen-induced cracking resistance |
| 08/26/2008 | US7416615 Very-high-strength and low-density, hot-rolled steel sheet and manufacturing process |
| 08/26/2008 | CA2469022C High-strength cold rolled steel sheet and method for manufacturing the same |
| 08/21/2008 | WO2008098910A1 Method for the production of components by superplastically deforming a heated sheet steel part |
| 08/21/2008 | WO2008098709A1 Method and apparatus for themo-mechanical controlled rolling of metal plates and strips |
| 08/21/2008 | WO2007065380A3 Method of production of high-strength low-alloyed steel pipes |
| 08/21/2008 | US20080199347 TRIP (Transformation Induced Plasticity); manufacture of structural component or of reinforcing element in the automobile field; hot rolled sheet |
| 08/21/2008 | US20080196799 Automobiles; control content of Ti, Al, B, N, and of Nb, Al, C combinationally, while increasing content of Al and reducing content of Ti |
| 08/21/2008 | DE102007006000A1 Austenitic, corrosion-resistant spring steel sheet, for use in flat gaskets, contains specific amounts of copper, chromium, manganese and nickel |
| 08/20/2008 | EP1958711A1 Method and apparatus for thermo-mechanical controlled rolling of metal plates and strips |
| 08/20/2008 | EP1225240B1 Fe-Ni BASED MATERIAL FOR SHADOW MASK |
| 08/20/2008 | CN101248202A Highly strong, thick electric resistance-welded steel pipe excellent in quenching property, hot forming processability and fatigue strength, and method for manufacture thereof |
| 08/20/2008 | CN101247907A Production of thin steel strip |
| 08/20/2008 | CN101245437A High collapse-resistance and hydrogen sulphide-corrosion-resistant low alloy petroleum case pipe and method of manufacturing the same |
| 08/20/2008 | CN101245435A Method for producing hot-rolled ferritic stainless steel strip steel |
| 08/20/2008 | CN100412223C Ultra-high strength steel with excellent corrosion resistance and fatigue resistance and its making process |
| 08/20/2008 | CN100412219C Production method of III threading reinforcing bar |
| 08/19/2008 | US7413780 High strength galvannealed steel sheet excellent in workability and a method of production of the same |
| 08/19/2008 | US7413617 Composite structure sheet steel with excellent elongation and stretch flange formability |
| 08/14/2008 | WO2008096394A1 Process for producing hot-rolled steel sheet having fine ferrite structure and hot-rolled steel sheet |
| 08/14/2008 | DE102007006255A1 Verfahren zur Herstellung eines Fahrwerk- und/oder Karosseriebauteil A process for the preparation of a chassis and / or body part |
| 08/14/2008 | DE102007006254A1 Verfahren zur Herstellung eines Fahrwerk- und/oder Karosseriebauteils A method for preparing a suspension and / or the body component |
| 08/13/2008 | EP1956100A1 Steel for warm working, method of warm working of the steel, and steel material and steel part obtained by the same |