| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 08/13/2008 | EP1954847A1 High-strength steel for seamless, weldable steel pipes |
| 08/13/2008 | EP1954842A1 Method for producing hot strip with a multiphase structure |
| 08/13/2008 | CN101240368A Method for manufacturing forging member with 16.9+0.16 stage tensile characteristic |
| 08/13/2008 | CN100410410C High strength spring steel having excellent hydrogen embrittlement resistance |
| 08/13/2008 | CN100410409C High strength thin steel sheet having high hydrogen embrittlement resisting property and high workability |
| 08/12/2008 | CA2310951C High-strength hot-rolled steel sheet having excellent stretch flangeability, and method of producing the same |
| 08/07/2008 | WO2008093897A1 High tensile steel products excellent in the resistance to delayed fracture and process for production of the same |
| 08/07/2008 | WO2008093466A1 Plated steel wire for pws excelling in torsion property and process for producing the same |
| 08/07/2008 | WO2007079625A8 An ultrafine grain steel sheet produced by continuous casting and rolling a medium-thin slab and its manufacture process |
| 08/07/2008 | US20080185077 Niobium-titanium composite-based interstitial-free (IF) steel having a distribution of fine precipitates (copper sulfide) of <0.2 mu m; results in dissolved carbon contained in crystal grain boundries; room-temperature aging resistance and bake hardenability; high strength and superior formability |
| 08/07/2008 | DE102007005257A1 Forming die or punch for hot deformation consists of at least two segments, at least one with recesses in contact surface with other |
| 08/06/2008 | EP1953249A1 Production method and production system of directional electromagnetic steel plate having excellent magnetic characteristics |
| 08/06/2008 | EP1951922A1 Corrosion resistance improved steel sheet for autmotive muffler and method of producing the steel sheet |
| 08/06/2008 | EP1951916A2 Method and finishing train for hot-rolling starting material |
| 08/06/2008 | EP1951519A2 High strength dual phase steel with low yield ratio, high toughness and superior weldability |
| 08/06/2008 | EP1811054A4 Pipe for petroleum and gas product pipelines and method for the production thereof |
| 08/06/2008 | CN101238235A High-strength steel for seamless, weldable steel pipes |
| 08/06/2008 | CN101238227A Method for producing a grain-oriented electrical steel strip |
| 08/06/2008 | CN101238226A Method for producing a grain-oriented electrical steel strip |
| 08/06/2008 | CN101235464A Copper and nickel alloying twin crystal inducing plasticity steel material and preparation technique |
| 08/06/2008 | CN100408711C High-strength cold rolled steel sheet and process for producing the same |
| 08/05/2008 | US7407555 Hot rolled wire is cold drawn with a predetermined reduction of area, high frequency induction heating is conducted; ferrite fraction in the microscopic structure is specified; of steel with lower carbon content and higher silicon content; higher performance than a hot-formed coil spring |
| 08/05/2008 | CA2297291C High tensile strength hot-rolled steel sheet and method of producing the same |
| 07/31/2008 | US20080178969 Ductibility; weldibility; dimensional stability; steel alloy is electric furnace melted, ladle refined, vacuum degassed and argon shield poured in order to ensure cleanliness and quality |
| 07/30/2008 | EP1948834A2 Method and device for the continuous creation of a bainite structure in a carbon steel, especially a strip steel |
| 07/30/2008 | CN101233253A Seamless steel pipe and method for producing same |
| 07/30/2008 | CN101233245A Method for producing seamless steel pipe |
| 07/30/2008 | CN101230437A Alloyed hot galvanizing bake hardening steel and method for manufacturing same |
| 07/30/2008 | CN101230413A Heat processing technique for austenitic stainless steel hot-rolling coil with high carbon content |
| 07/30/2008 | CN101229564A Manufacturing method of increasing high strength flat-bulb steel low temperature impact properties percent of pass |
| 07/30/2008 | CN100406585C Method for producing grain oriented magnetic steel sheet and grain oriented magnetic steel sheet |
| 07/29/2008 | US7404865 Steel wire for heat-resistant spring, heat-resistant spring and method for producing heat-resistant spring |
| 07/24/2008 | WO2008087249A1 Method for manufacturing an austenitic steel object |
| 07/24/2008 | WO2008068352A3 A strip of steel having a variable thickness in length direction |
| 07/24/2008 | WO2008018242A9 Two-phase stainless steel |
| 07/24/2008 | DE102007003745A1 Vorrichtung zur Herstellung pressgehärteter Blechbauteile An apparatus for producing press-hardened sheet metal components |
| 07/24/2008 | DE102007002678A1 Process for production of heat formed sheet component useful in production of sheet steel avoids short life of trimming tool, especially in trimming high strength steel sheets |
| 07/23/2008 | EP1461466B1 Nano-compsite martensitic steels |
| 07/23/2008 | EP0918098B1 Method for producing a bake-hardenable cold-rolled steel sheet having excellent aging resistance |
| 07/23/2008 | CN101228287A High silicon stainless steel and material thereof and method for manufacturing high silicon stainless steel |
| 07/23/2008 | CN101225460A Fe-Ni alloy transient minimal-stress deformation grain refining method |
| 07/23/2008 | CN101225459A Method for manufacturing high-plastic ultra-fine grain micro-alloy low-carbon steel |
| 07/22/2008 | US7402215 C: more than 0.65-1.1%; Si: 0.15-1.5%; Mn: 0.2-1.5%; 2 or more of Cr, Mo, V, Ti, Nb and B and balance Fe; tensile strength of 1800 MPa or more; sectional area forming a fan shapes which are combined to form a circular hollow crosssection for accommodating optical fibers; pebbled surface of relief shapes |
| 07/22/2008 | CA2467600C Method for producing formed articles |
| 07/17/2008 | WO2008084749A1 Steel for machine structure excelling in machinability and strength property |
| 07/17/2008 | WO2007028475A3 Method for producing press-hardened component |
| 07/16/2008 | EP1574587B1 METHOD OF THERMO-MECHANICAL-TREATMENT FOR Fe-Mn-Si SHAPE-MEMORY ALLOY DOPED WITH NbC |
| 07/16/2008 | EP1293580B1 High carbon steel pipe excellent in cold formability and high frequency hardenability and method for producing the same |
| 07/16/2008 | EP1026278B1 Use of a ferritic steel sheet having excellent shape fixability and manufacturing method thereof |
| 07/16/2008 | CN101223291A Bearing device for wheel |
| 07/16/2008 | CN101220442A Hot work die steel with high-heat stability and high-strength |
| 07/16/2008 | CN100402688C Steel material for high heat input welding and its manufacturing method |
| 07/16/2008 | CN100402673C Grain-oriented magnetic steel sheet excellent in magnetic characteristic and its manufacturing method |
| 07/16/2008 | CN100402672C Method and device for controlled straightening and cooling of a wide metal strip, especially a steel strip or sheet metal, running out of a hot rolled strip rolling mill |
| 07/15/2008 | US7399372 stainless steels having ridges and compressive residual stress, used in vehicle suspensions, gas springs, and vacuums; springs |
| 07/15/2008 | US7399369 Grain-oriented containing 2-7% Si in mass; Bi exists at the interface between the substrate steel and the primary film; produced by controlling the heating rate and the atmosphere of decarburization annealing |
| 07/10/2008 | WO2008081956A1 High carbon hot-rolled steel sheet and method for production thereof |
| 07/10/2008 | WO2008081866A1 Process for producing seamless steel pipe made of high-chromium high-nickel alloy steel |
| 07/10/2008 | WO2008081517A1 Method for manufacturing tool steel |
| 07/10/2008 | US20080166257 Deep drawability; microstructure composed of ferrite and precipitates; for automobile components |
| 07/09/2008 | EP1942203A1 Steel product usable at low temperature and method for production thereof |
| 07/09/2008 | EP1013819B1 Method of manufacturing a steel wire |
| 07/09/2008 | CN101218362A Non-oriented electromagnetic steel sheet and its manufacturing method |
| 07/09/2008 | CN101215668A Method for manufacturing low-carbon 9Ni steel thick plate |
| 07/09/2008 | CN101215665A Steel having excellent machinability and production method therefor |
| 07/09/2008 | CN101215629A Heat treatment method for spring wire |
| 07/09/2008 | CN100400680C Process for production of grain oriented electrical steel |
| 07/09/2008 | CN100400679C High strength seamless steel pipe and its manufacturing method |
| 07/08/2008 | US7396423 Method for manufacturing steel plate having superior toughness in weld heat-affected zone |
| 07/08/2008 | US7396421 alloys having calcium and magnesium oxide-based inclusions, having excellent in corrosion resistance in brines, used for pipes or casings |
| 07/08/2008 | US7396420 Hot-dip galvanized hot-rolled and cold-rolled steel sheets excellent in strain age hardening property |
| 07/08/2008 | CA2359294C Process for manufacturing a cylindrical hollow body and hollow body made thereby |
| 07/08/2008 | CA2343340C Process for producing a piece with very high-level mechanical characteristics, formed by drawing, from a strip of laminated steel plate, hot rolled and coated |
| 07/03/2008 | WO2008078947A1 Method of manufacturing grain-oriented electrical steel sheets |
| 07/03/2008 | WO2008078915A1 Method for manufacturing grain-oriented electrical steel sheets with excellent magnetic property and high productivity |
| 07/03/2008 | WO2008078901A1 The method for manufacturing thin steel sheet for deep drawing having excellent workability |
| 07/03/2008 | US20080160335 Rotationally Symmetrical Hollow Body Made of a Deformable Permanently Magnetic Alloy and its Use and Production Process |
| 07/03/2008 | US20080159901 molybdenum is completely or partially replaced with double the proportion of tungsten; added titanium and/or zirconium which is/are intended to form, substantially during solidification, coarse carbides; reducing the segregated seams |
| 07/03/2008 | US20080156403 Steel for high-speed cold working and method for production thereof, and part formed by high-speed cold working and method for production thereof |
| 07/02/2008 | EP1939309A1 Steel for high-speed cold working and method for production thereof, and part formed by high-speed cold working and method for production thereof |
| 07/02/2008 | EP1937861A1 High strength hot rolled steel sheet containing high mn content with excellent workability and method for manufacturing the same |
| 07/02/2008 | EP1937854A1 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 |
| 07/02/2008 | EP1937853A1 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 sheet |
| 07/02/2008 | CN101213318A Method and apparatus for growing single-crystal metals |
| 07/02/2008 | CN101210302A Middle and low carbon bainite high-strength high-ductility steel and manufacturing method thereof |
| 07/02/2008 | CN101210297A Method for preparing tropism silicon steel |
| 07/02/2008 | CN101210277A Surface stirring friction processing method and special-purpose processing tool for the same |
| 07/02/2008 | CN100398682C Method for preparing micro-grain manganese bronze alloy |
| 07/01/2008 | US7393422 Method for producing high carbon steel wire rod superior in wire-drawability |
| 07/01/2008 | US7393421 Method for in-die shaping and quenching of martensitic tubular body |
| 07/01/2008 | US7393420 Steel tube for bearing element parts and method of manufacturing as well as machining the same |
| 06/26/2008 | WO2008075443A1 Steel excelling in toughness at region affected by welding heat |
| 06/26/2008 | WO2008006346A3 Method for production of a sheet metal semi-finished product suitable for press hardening |
| 06/26/2008 | US20080149230 Titanium-based interstitial-free (IF) steel having a distribution of fine precipitates (copper sulfide) of <0.2 mu m; yield strength; lowering of in-plane anisotropy index; dissolved carbon contained in crystal grain boundries which promotes aging resistance and bake hardenability; nanostructure |
| 06/25/2008 | EP1934380A1 The precipitation hardening cold rolled steel sheet having excellent yield ratios, and the method for manufacturing the same |
| 06/25/2008 | CN101208446A High-strength wire rod having superior rod drawability, and manufacturing method therefor |
| 06/25/2008 | CN101208445A High-strength wire rod having superior rod drawability, manufacturing method therefor |
| 06/25/2008 | CN101208440A Steel wire rod excellent in mechanical de-scaling property, and producing method therefor |
| 06/25/2008 | CN101205595A Tough ultra-strength stainless steel and method for manufacturing the same |
| 06/25/2008 | CN101205593A X80 steel bend pipe and bending technique thereof |