| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 12/09/2009 | CN100567548C Method for manufacturing high-vanadium, high-cobalt high speed steel |
| 12/09/2009 | CN100567545C High grade non-oriented silicon steel and method for manufacturing same |
| 12/09/2009 | CN100567544C Oriented electrical sheet containing trace amount depressor and method for manufacturing same |
| 12/09/2009 | CN100567540C Method for determining Ti addition amount of 550MPa grade Ti micro-alloying high-strength weathering steel |
| 12/09/2009 | CN100567519C Technique for producing deep-drawing cold-rolled plate based on CSP technique |
| 12/09/2009 | CN100566871C Method of processing metal |
| 12/08/2009 | US7629870 Process for the treatment of a thin brittle metal strip and magnetic components produced from a strip made of a nanocrystalline alloy |
| 12/03/2009 | WO2009145328A1 High-strength hot-rolled steel sheet for line pipe excellent in low-temperature toughness and ductile-fracture-stopping performance and process for producing the same |
| 12/03/2009 | WO2009145168A1 Manufacturing method for machine parts having superior rolling-contact fatigue life |
| 12/03/2009 | US20090297387 Low specific gravity and high strength steel sheets with excellent ridging resistibility and manufacturing methods thereof |
| 12/02/2009 | EP2128289A1 Steel sheet for cans, hot-rolled steel sheet to be used as the base metal and processes for production of both |
| 12/02/2009 | EP2128288A1 High tensile steel products excellent in the resistance to delayed fracture and process for production of the same |
| 12/02/2009 | EP2128278A1 Process for producing bend pipe for line pipe and bend pipe for line pipe |
| 12/02/2009 | EP2128277A1 Method for annealing metal strips |
| 12/02/2009 | EP2127767A1 Process for producing seamless steel pipe made of high-chromium high-nickel alloy steel |
| 12/02/2009 | EP2125263A1 Method and apparatus for the temperature-controlled shaping of hot-rolled steel material |
| 12/02/2009 | CN101591754A High-obdurability low-alloy cold stamping die steel and hot chemical treatment process |
| 12/02/2009 | CN101591752A Steel for cup-shaped iron core of loudspeaker and production method thereof |
| 12/02/2009 | CN101591751A Low specific gravity and high strength steel sheets with excellent ridging resistibility and manufacturing methods thereof |
| 12/02/2009 | CN101591729A Method for predicting structure evolution of austenite dynamic recrystallization in thermal deformation of plate-strip steel |
| 12/02/2009 | CN101591726A Cold drawing method for medium-carbon steel bar |
| 12/02/2009 | CN101591725A Production technology for strip steel |
| 12/02/2009 | CN100564567C Expansive seamless steel pipe for use in oil well and method for production thereof |
| 12/02/2009 | CN100564549C Method for the thermomechanical treatment of steel |
| 12/01/2009 | CA2420492C A method of producing steel strip |
| 12/01/2009 | CA2286495C Method of making grain-oriented magnetic steel sheet having low iron loss |
| 11/26/2009 | WO2009101129A3 Method for producing a grain-oriented magnetic strip |
| 11/26/2009 | US20090291013 Method of designing a low cost, high strength, high toughness, martensitic steel and an article made thereof |
| 11/25/2009 | EP2123786A1 Method of manufacturing very high-resistance, cold-laminated dual-phase steel sheets, and sheets produced thereby |
| 11/25/2009 | EP2123785A1 Steel plate having high gathering degree of {222} plane and process for production thereof |
| 11/25/2009 | EP2123780A1 Processes for production of steel sheets for cans |
| 11/25/2009 | CN101586450A Petroleum casing pipe with high strength and high toughness and preparing method thereof |
| 11/25/2009 | CN101586219A Composite bainite steel product containing copper and method for producing the same |
| 11/25/2009 | CN101586218A Copper-containing bainite steel with high hardenability and manufacturing method thereof |
| 11/25/2009 | CN101586217A Low-cost and ultra-high strength and toughness martensite steel and manufacturing method thereof |
| 11/25/2009 | CN101586216A Ultra-high strength and toughness bainitic steel and manufacturing method thereof |
| 11/25/2009 | CN101586211A Hot-rolled steel sheet containing niobium steel and producing method thereof |
| 11/25/2009 | CN101586210A High strength enamel steel and producing technology and enamel firing technology thereof |
| 11/25/2009 | CN101586182A Method for reducing net level of bearing steel wire rod carbide |
| 11/25/2009 | CN101586181A Production method of stainless steel soft-state strip |
| 11/25/2009 | CN100562601C High-strength hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having fatigue resistance, corrosion resistance, ductility and plating adhesion, after severe deformation, and a metho |
| 11/25/2009 | CN100562597C Corrosion-resistant steel excellent in toughness of base metal and weld part and process for producing the same |
| 11/19/2009 | WO2009139420A1 High‑strength low‑alloy steel with excellent environmental embrittlement resistance in high‑pressure hydrogen environments, and method of manufacture thereof |
| 11/19/2009 | US20090283181 hard-drawn spring which exhibits fatigue strength and sag resistance equal or superior to springs produced using an oil-tempered wire. The hard-drawn spring is produced using a steel wire containing 0.5 to 0.7 mass % of C, 1.0 to 1.95 mass % of Si, 0.5 to 1.5 mass % of Mn and 0.5 to 1.5 mass % of Cr |
| 11/18/2009 | EP2119803A1 Thick high-strength steel plate and process for producing the same |
| 11/18/2009 | CN101583727A Method for manufacturing an austenitic steel object |
| 11/18/2009 | CN101580918A Cr-containing thick-wall pipeline steel and coiled sheet controlled rolling and controlled cooling method thereof |
| 11/18/2009 | CN101580916A High-strength high-plasticity twinning-induced plasticity steel and manufacturing method thereof |
| 11/18/2009 | CN101580892A Process for producing low-alloy high-strength medium plate with 0 to 0.05 percent of arsenic content |
| 11/18/2009 | CN100560777C On-line thermal-insulating quenching apparatus and process |
| 11/18/2009 | CN100560772C Granule carbonide reinforced ferritic steel and preparation method thereof |
| 11/18/2009 | CN100560770C Steel for battery shell with excellent planar isotropism and its production |
| 11/18/2009 | CN100560768C Martensitic stainless steel pipe and method for production thereof |
| 11/17/2009 | US7617583 Method for producing hot-dip coated metal belt |
| 11/12/2009 | WO2008146929A9 Abrasion-resistant steel sheet having excellent processability, and method for production thereof |
| 11/12/2009 | US20090280350 Steel sheet having high plane integration and method of production of same |
| 11/12/2009 | US20090277546 Method for manufacturing flat steel products from a steel forming a complex phase microstructure |
| 11/12/2009 | US20090277539 Steel for Warm Working, Warm Working Method Using the Steel, and Steel Material and Steel Component Obtainable Therefrom |
| 11/12/2009 | DE10020118B4 Method for verifying sealability of selected exhaust valve of selected cylinder in internal combustion engine in motor vehicle, involves concluding sealability of valve based on measured values of lambda sensor in one of exhaust gas strands |
| 11/11/2009 | EP2116624A1 High-strength hot-rolled steel plate for line pipes excellent in low-temperature toughness and process for production of the same |
| 11/11/2009 | EP2116623A1 Electric resistance welded steel pipe prior to heat treatment and process for manufacturing the same |
| 11/11/2009 | EP1573075B1 Method for producing a steel product |
| 11/11/2009 | CN101578384A Steel with weld heat-affected zone having excellent CTOD properties and process for producing the steel |
| 11/11/2009 | CN101578381A Processes for production of steel sheets for cans |
| 11/11/2009 | CN101578380A Process for producing thick high-strength steel plate excellent in brittle fracture arrestability and toughness of zone affected by heat in large-heat-input welding and thick high-strength steel plate |
| 11/11/2009 | CN100558926C Steel for plastic molds and process of heat treatment thereof |
| 11/11/2009 | CN100558915C Hot-rolled steel band suitable for electromagnetic lamination unit production |
| 11/11/2009 | CN100558914C 30Mn*280 orbit square steel cold drawing deformation aging heat processing technique for large-scale port machine |
| 11/11/2009 | CN100558913C Fe-Ni alloy transient minimal-stress deformation grain refining method |
| 11/10/2009 | USRE40950 Ferritic stainless steel plate |
| 11/10/2009 | US7615186 Spring steel excellent in sag resistance and fatigue property |
| 11/10/2009 | US7615126 High strength hot rolled steel plate excellent in enlargeability and ductility and method for producing thereof |
| 11/10/2009 | US7615124 Plating coating is intimately bonded, by high pressure, to a core made of hardenable steel with moderate mechanical properties, and then the plated wire undergoes a rapid high-temperature hardening step followed by tempering; corrosion resistance, strength; wound armor wires |
| 11/05/2009 | WO2009133965A1 Hot-rolled steel plate for steel tubes for machine structural purposes which is excellent in fatigue characteristics and bending formability and process for production of the plate |
| 11/05/2009 | WO2009097426A3 Steel sheet heat treatment/stamp system and method |
| 11/05/2009 | US20090272468 Method for Manufacturing Bake-Hardenable High-Strength Cold-Rolled Steel Sheet |
| 11/04/2009 | EP2113580A1 Steel wire rod excellent in mechanical descaling |
| 10/28/2009 | EP2112238A1 Continuous annealing equipment |
| 10/28/2009 | EP2112237A1 Development of a very high resistance to sensitization in austenitic stainless steel through special heat treatment resulting in grain boundary microstructural modification |
| 10/28/2009 | EP2111309A1 Method and apparatus for thermo-mechanical controlled rolling of metal plates and strips |
| 10/28/2009 | CN101568662A Process for manufacturing steel blanks |
| 10/28/2009 | CN101568661A Martensitic non-heat-treated steel for hot forging and non-heat-treated steel hot forgings |
| 10/28/2009 | CN101568655A High carbon hot-rolled steel sheet and method for production thereof |
| 10/28/2009 | CN101568653A Method of manufacturing grain-oriented electrical steel sheets |
| 10/28/2009 | CN101565796A Sheet steel with tensile strength of 570Mpa for elbow pipe and production method thereof |
| 10/28/2009 | CN100554478C Steel for niobium-containing high-strength corrosion-resistant steel bar and rolling technique thereof |
| 10/28/2009 | CN100554475C Fe-Ni alloy pipe stock and method for manufacturing the same |
| 10/28/2009 | CN100554441C After-forging grain-refining strength-toughening treatment process of 1Mn18Cr18N steel guard ring for generating set |
| 10/27/2009 | US7608156 High strength cold rolled steel sheet and method for manufacturing the same |
| 10/27/2009 | US7608155 A hot dip coated dual phase steel sheet having excellent formability (a low yield strength/tensile strength ratio <== about 70%), impact strength, weldability, toughness,and crash resistance; microstructure of ferrite and martensite; excellent surface quality under processing; lightweight; durability |
| 10/22/2009 | WO2009128428A1 High-strength non-oriented magnetic steel sheet and process for producing the high-strength non-oriented magnetic steel sheet |
| 10/22/2009 | WO2009100702A8 Method and device for the heat treatment of a tubular body for a delivery pipe and a method for the production of a delivery pipe |
| 10/22/2009 | WO2009093827A3 Manufacturing method of doubly oriented electrical steel sheets and doubly oriented electrical steel sheets which are manufactured using the same |
| 10/22/2009 | WO2009091216A3 Production method for non-oriented electrical steel sheet, and non-oriented electrical steel sheet produced thereby |
| 10/22/2009 | US20090263053 Plain Bearing Composite Material, Use Thereof and Production Methods Therefor |
| 10/22/2009 | US20090260729 High-carbon hot-rolled steel sheet and method for producing the same |
| 10/22/2009 | US20090260728 Method and installation for producing hot-rolled strip from austenitic stainless steels |
| 10/22/2009 | US20090260721 Method of restrained-quenching of annular member |
| 10/21/2009 | EP1157138B9 Cold rolled steel |
| 10/21/2009 | CN101563470A Method for manufacturing tool steel |