| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 03/12/2008 | CN101139684A Hot-rolled high-strength steel plate for electrostatic enamel and method for manufacturing same |
| 03/12/2008 | CN101139682A Straight joint resistance welding oil annular tube steel and manufacturing method thereof |
| 03/12/2008 | CN101139681A High grade cold rolling non-oriented silicon steel and method for manufacturing same |
| 03/12/2008 | CN100374601C Grain oriented electric silicon steel sheet or strip with extremely high adherence to coating and process for producing the same |
| 03/12/2008 | CN100374585C High tensile strength hot dip plated steel sheet and method for production thereof |
| 03/11/2008 | US7341637 Overcoating with solid lubricant; cold rolling |
| 03/11/2008 | US7341096 Method for processing a continuously cast metal slab or strip, and plate or strip produced in this way |
| 03/06/2008 | US20080053580 Method for Production of Sheet of Austenitic Iron/Carbon/Manganese Steel and Sheets Produced Thus |
| 03/06/2008 | US20080053576 Press formability by regulating a retained austenite ratio and accelerates the formation of oxides by regulating a hydrogen concentration and a dew point in annealing before plating; automobile |
| 03/06/2008 | DE19909324B4 Hochzäher Stahl und Verfahren zur Herstellung desselben Of the same high-toughness steel and methods for making |
| 03/05/2008 | EP1516937B1 High-strength cold rolled steel sheet and process for producing the same |
| 03/05/2008 | EP1391528B1 Ferritic stainless steal and martensitic stainless steel both being excellent in machinability |
| 03/05/2008 | CN101135030A Weather-resistant hot rolled narrow steel strip and method for manufacturing same |
| 03/05/2008 | CN101135029A Yield strength 700MPa grade atmospheric corrosion resistant steel and method for manufacturing same |
| 03/05/2008 | CN101135025A Production of cold rolling high-strength ultra-deep-drawing steel plate by bell-type furnace and method for manufacturing same |
| 03/05/2008 | CN101134998A Control system and method for accelerating cooling process |
| 03/05/2008 | CN100372964C Non-orientation electrical steel and its making process |
| 03/05/2008 | CN100372958C Super magnetostrictive material with super wide work temperature range |
| 02/28/2008 | WO2008023734A1 Iron-based alloy and process for producing the same |
| 02/28/2008 | WO2008023410A1 Austenite-base stainless steel pipe, for boiler, having excellent high-temperature steam oxidation resistance |
| 02/28/2008 | US20080047635 Heavy wall seamless steel pipe for line pipe and a manufacturing method thereof |
| 02/27/2008 | EP1892309A1 Oil well pipe for expandable-tube use excellent in toughness after pipe expansion and process for producing the same |
| 02/27/2008 | CN101130846A Phase-change induced plastic steel plate by continuous casting and rolling middle bar strip and manufacturing method thereof |
| 02/27/2008 | CN100371490C Thermal processing method in production process of super-thin aluminium foil by cast-rolling stock |
| 02/21/2008 | US20080041503 Excellent Cold-Workability Exhibiting High-Strength Steel Wire or Steel Bar or High-Strength Shaped Article, and Process for Producing Them |
| 02/20/2008 | EP1889937A1 High tensile steel product excellent in delayed fracture resistance and method for production thereof |
| 02/20/2008 | EP1889928A1 Grain-oriented magnetic steel sheet with extremely high magnetic property and process for producing the same |
| 02/20/2008 | EP1889927A1 Grain oriented electromagnetic steel sheet having excellent film adhesion and process for producing the same |
| 02/20/2008 | EP1888802A2 Method and apparatus for growing single-crystal metals |
| 02/20/2008 | EP1888801A1 Razor blades and compositions and processes for the production of razor blades |
| 02/20/2008 | EP1888799A1 Cold rolled steel sheet having superior formability , process for producing the same |
| 02/20/2008 | CN101126119A 30Mn280 orbit square steel cold drawing deformation aging heat processing technique for large-scale port machine |
| 02/20/2008 | CN101125473A Hot-dip galvanized thin steel sheet, thin steel sheet processed by hot-dip galvanized layer, and a method of producing the same |
| 02/20/2008 | CN101125472A Hot-dip galvanized thin steel sheet, thin steel sheet processed by hot-dip galvanized layer, and a method of producing the same |
| 02/20/2008 | CN100370048C Heat-resistant ferritic stainless steel and method for production thereof |
| 02/20/2008 | CN100369702C Method of manufacturing metallic products such as sheet by cold working and flash annealing |
| 02/14/2008 | WO2008018242A1 Two-phase stainless steel |
| 02/14/2008 | WO2008018179A1 Antenna core and antenna |
| 02/14/2008 | US20080035249 Method for Producing Austenitic Iron-Carbon-Manganese Metal Sheets, and Sheets Produced Thereby |
| 02/14/2008 | US20080035248 metal working; hot-rolled and cold-rolled steel; high mechanical properties, use in manufacture of structural or reinforcing elements or external parts for automotive field |
| 02/13/2008 | CN101121991A Fine-crystal composite phase low-carbon screw thread straight bar and producing method thereof |
| 02/13/2008 | CN100368577C Process for producing fine type steel crystal particle |
| 02/07/2008 | WO2008015258A1 Process for manufacturing steel blanks |
| 02/06/2008 | CN101120105A Method for producing quenched components consisting of sheet steel |
| 02/06/2008 | CN101117692A Non-magnetic high-strength stainless steel material and method for manufacturing the same |
| 02/06/2008 | CN101117689A 03Cr22Ni4NbN austenite-ferritic stainless steel and production technology therefor |
| 02/06/2008 | CN100366777C High temperature creep-resisting furnace shell material and its preparation method |
| 02/06/2008 | CN100366761C Warm rolling method |
| 02/06/2008 | CN100366760C Method for making hardenable steel plates by firing, resulting steel plates |
| 02/06/2008 | CN100366759C Ultrahigh strength hot-rolled steel and method of producing bands |
| 02/06/2008 | CN100366351C On line oil bath thermal treating twin roll casting rolling method and apparatus |
| 01/31/2008 | WO2008013323A1 Steel part with surface layer of fine grain and process for producing the same |
| 01/31/2008 | WO2008013300A1 Process for producing pearlitic rail excellent in wearing resistance and ductility |
| 01/31/2008 | WO2008013015A1 Non-oriented magnetic steel sheet with high strength |
| 01/31/2008 | WO2007113642A3 Low carbon alloy steel tube having ultra high strength and excellent toughness at low temperature and method of manufacturing the same |
| 01/30/2008 | EP1882755A1 High silicon stainless steel, spring manufactured by using same as raw material, and method for producing high silicon stainless steel |
| 01/30/2008 | CN101113749A Method for making high intensity non-magnetic non-corrodible steel tauten screw rod |
| 01/30/2008 | CN101113507A Niobium, vanadium composite micro-alloying low-carbon boron steel for cold heading and production method thereof |
| 01/30/2008 | CN100365154C Cu-Ag-RE alloy in-situ nano fiber composite material |
| 01/29/2008 | US7323070 ultralow carbon-Ni steel or ultralow carbon-Ni Co steel; strengthened by precipitation intermetallic compounds of Ti or Mo, etc. on a matrix of tough martensite |
| 01/29/2008 | CA2434448C Steel pipe having low yield ratio |
| 01/24/2008 | WO2008009722A1 Rustproof austenitic cast steel, method for production and use thereof |
| 01/24/2008 | US20080017284 Steel for oil well pipe excellent in sulfide stress cracking resistance and method for producing seamless steel pipe for oil well |
| 01/24/2008 | DE102006032617A1 Verfahren zur Herstellung eines zum Formhärten geeigneten Blechhalbzeugs Process for the preparation of a suitable for stamping metal, semi-finished |
| 01/24/2008 | CA2657747A1 Austenitic stainless cast steel part, method for production and use thereof |
| 01/23/2008 | EP1880396A1 Low core loss grain-oriented electrical steel sheet and method for producing the same |
| 01/23/2008 | CN101111622A Austenitic steel having high strenght and formability method of producing said steel and use thereof |
| 01/23/2008 | CN101111621A High tensile and fire-resistant steel excellent in weldability and gas cutting property and method for production thereof |
| 01/23/2008 | CN101109037A Method of producing high undercooling control rolling fine grain high-strength C-Mn steel plate |
| 01/23/2008 | CN100363523C Ferritic stainless steel sheet excellent in formability and its manufacturing method |
| 01/23/2008 | CN100363509C Non-grain oriented electrical steel strip or electrical steel sheet and method for producing the same |
| 01/22/2008 | CA2376845C Method for manufacturing high strength bolt excellent in resistance to delayed fracture and to relaxation |
| 01/17/2008 | WO2008007572A1 ROLLED AUSTENITE STAINLESS STEEL PLATE HAVING THICHKESS OF 100 mm OR MORE AND METHOD FOR PRODUCTION THEREOF |
| 01/17/2008 | WO2008007192A2 Process for manufacturing iron-carbon-manganese austenitic steel sheet with excellent resistance to delayed cracking, and sheet thus produced |
| 01/17/2008 | WO2008006346A2 Method for production of a sheet metal semi-finished product suitable for press hardening |
| 01/17/2008 | US20080011393 Pearlitic steel rail excellent in wear resistance and ductility and method for producing same |
| 01/17/2008 | CA2787998A1 Process for manufacturing iron-carbon-manganese austenitic steel sheet with excellent resistance to delayed cracking, and sheet thus produced |
| 01/16/2008 | EP1878811A1 Process for manufacturing iron-carbon-manganese austenitic steel sheet with excellent resistance to delayed cracking, and sheet thus produced |
| 01/16/2008 | EP1878810A1 Heat-resistant steel product and method for production thereof |
| 01/16/2008 | EP1580287B1 Steel excellent in machinability and method for production thereof |
| 01/16/2008 | CN101104909A OOCr13Ni5Mo ultralow-carbon martensitic stainless steel and producing method thereof |
| 01/16/2008 | CN101104908A Iron-base shape memory alloy locked key and its manufacturing and using method |
| 01/10/2008 | WO2008004680A1 High-strength steel pipe with excellent low-temperature toughness for line pipe, high-strength steel plate for line pipe, and processes for producing these |
| 01/10/2008 | WO2008004453A1 High-tension welded steel pipe for automotive structural member and process for producing the same |
| 01/10/2008 | US20080008901 Steel Sheet Having High Young's Modulus, Hot-Dip Galvanized Steel Sheet Using The Same, Alloyed Hot-Dip Galvanized Steel Sheet, Steel Pipe Having High Young's Modulus And Methods For Manufacturing These |
| 01/10/2008 | US20080006350 Method and Device for the Deformation of Semi-Finished Material in Wire and Rod Form, Close to the Final Dimensions, as Well as a Flat Profile Produced Accordingly |
| 01/10/2008 | DE102006030509A1 Method for treating a sheet metal component used in chassis construction comprises hardening the component in predetermined regions by introducing locally delimited energy into the mold |
| 01/10/2008 | CA2656637A1 High-tensile strength welded steel tube for structural parts of automobiles and method of producing the same |
| 01/09/2008 | EP1876254A1 Thick seamless steel pipe for line pipe and method for production thereof |
| 01/09/2008 | EP1444374B1 High-strength thin steel sheet drawable and excellent in shape fixation property and method of producing the same |
| 01/09/2008 | EP1254275B1 STEEL PLATE TO BE PRECIPITATING TiN + ZrN FOR WELDED STRUCTURES, METHOD FOR MANUFACTURING THE SAME AND WELDING FABRIC USING THE SAME |
| 01/09/2008 | CN100360696C Steel for crude oil tank and method for manufacture thereof, crude oil tank and method for protecting corrosion thereof |
| 01/08/2008 | US7316143 Seamless steel tubes and method for producing the same |
| 01/08/2008 | CA2381405C Steel pipe excellent in formability and method of producing the same |
| 01/03/2008 | WO2008000845A1 Method and system for optimizing steel-rolling processes |
| 01/03/2008 | WO2008000396A1 A method and a system for producing hot-rolled strip silicon steel based on thin slabs |
| 01/03/2008 | WO2008000300A1 Seamless precision steel tubes with improved isotropic toughness at low temperature for hydraulic cylinders and process for obtaining the same |
| 01/03/2008 | US20080000559 Method and installation for producing hot-rolled strip from austenitic stainless steels |
| 01/02/2008 | EP1873271A1 Heat-resistant ferritic stainless steel and method for production thereof |
| 01/02/2008 | CN101098979A Hot rolled wire material excellent in cold forging property after spheroidizing treatment, spheroidizing-annealed steel wire having excellent cold forging property, and method for production thereof |