| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 12/31/2008 | CN100447276C High carbon steel wire material having excellent wire drawability and manufacturing process thereof |
| 12/31/2008 | CN100447275C High-strength invar alloy and its alloy wire rod production method |
| 12/31/2008 | CN100447262C Method for manufacturing ordinary oriented silicon steel |
| 12/31/2008 | CN100446894C Production of thin steel strip |
| 12/30/2008 | US7470336 Preparing alloy, thermal mechanically treating by austenitizing alloy at temperature greater than 1000 degrees C., hot working at temperature greater than 1000 degrees C. to impart true strain of greater than 0.20, cooling to room temperature to obtain fine-grained martensitic microstructure |
| 12/30/2008 | US7470333 Non-oriented electrical steel sheet excellent in core loss and manufacturing method thereof |
| 12/30/2008 | CA2389281C Method for fabricating vehicle components and new use of a precipitation hardenable martensitic stainless steel |
| 12/30/2008 | CA2318112C Steel powder for the preparation of sintered products |
| 12/30/2008 | CA2229693C Stainless steel for the production of steel cord, specifically tire reinforcing wire and process for producing the said wire |
| 12/24/2008 | EP2006406A1 High-strength pearlite rail with excellent delayed-fracture resistance |
| 12/24/2008 | EP2006398A1 Process for producing steel material |
| 12/24/2008 | EP2006396A2 Process for production of seamless pipes |
| 12/24/2008 | EP2006086A2 Soft magnetic metal strip laminate and process for production thereof |
| 12/24/2008 | CN101328565A Low nickle type austenitic stainless steel and manufacturing method thereof |
| 12/24/2008 | CN101328564A Low yield ratio HT780 steel plate having superior weldability and manufacturing method thereof |
| 12/24/2008 | CN101328561A Chromium ferritic stainless steel in precipitation strengthening, strip steel and making method thereof |
| 12/24/2008 | CN101328560A Ni seamless steel pipe and manufacturing method thereof |
| 12/24/2008 | CN101328534A Method for preparing sheet-like nanocrystalline Fe-based alloy microwave absorbing agent |
| 12/24/2008 | CN101328522A Smelting production method of low activation martensitic steel for fusion reactor |
| 12/24/2008 | CN101327561A Hot edge-cutting manufacture technology for automobile generator finish forging claw pole |
| 12/24/2008 | CN100445409C Low-Si, low-Mn, Nb- and Ti- containing grain-refining hot-rolling dual phase steel and manufacturing process thereof |
| 12/23/2008 | US7468109 High strength steel sheet having excellent stretch flangeability |
| 12/23/2008 | CA2640017A1 Cutting members for shaving razors |
| 12/23/2008 | CA2388480C Welded steel pipe having excellent hydroformability and method for making the same |
| 12/18/2008 | US20080308200 Steel Sheet Excellent in Workability and Method for Producing the Same |
| 12/18/2008 | US20080308198 Austenitic Stainless Steel, Manufacturing Method for the Same, and Structure Using the Same |
| 12/18/2008 | US20080308194 Method for Making a Steel Part of Multiphase Microstructure |
| 12/17/2008 | EP2003216A1 Process for producing seamless two-phase stainless-steel pipe |
| 12/17/2008 | EP2003215A2 Method for production of martensitic stainless steel pipe |
| 12/17/2008 | EP2002025A1 Hot-working steel |
| 12/17/2008 | EP1669469B1 Steel parts for machine structure, material therefor, and method for manufacture thereof |
| 12/17/2008 | CN101326299A High strength cold rolled steel sheet and hot dip galvanized steel sheet having excellent formability and coating property, and the method for manufacturing thereof |
| 12/17/2008 | CN101326298A Sheet steel excellent in fatigue crack propagation resistance |
| 12/17/2008 | CN101323901A Austenitic stainless steel as-forged solid solution treatment process after forging |
| 12/17/2008 | CN100443613C Nonoriented electrical steel sheet excellent in core loss |
| 12/16/2008 | US7465361 Method for producing grain oriented magnetic steel sheet and grain oriented magnetic steel sheet |
| 12/10/2008 | EP2000555A1 Expandable oil well pipe to be expanded in well and process for production of the pipe |
| 12/10/2008 | EP2000553A1 Rolled material for fracture split connecting rod excelling in fracture splittability, hot forged part for fracture split connecting rod excelling in fracture splittability, and fracture split connecting rod |
| 12/10/2008 | EP1899490B1 Austenitic stainless steel strip having a bright surface finish and excellent mechanical properties |
| 12/10/2008 | CN101319294A Steel for fine grain carburizing gear and method of manufacturing the same |
| 12/10/2008 | CN101319293A Sea water resistant steel and manufacture process thereof |
| 12/10/2008 | CN101318198A Process for manufacturing casting and rolling 3004 alloy deep punching material |
| 12/10/2008 | CN100441725C High-strength high-ducility bainite non-quenched and tempered steel plate with small acoustic anisotropism |
| 12/10/2008 | CN100441724C Process for production of hot-rolled dual phase steel by continuous casting and continuous rolling of slab billet |
| 12/10/2008 | CN100441722C Process for producing deep-drawing Low-carbon aluminium-killed steel based on CSP technology |
| 12/10/2008 | CN100441721C Ferritic cr-containing steel |
| 12/09/2008 | US7462251 Method for making an abrasion-resistant steel plate |
| 12/09/2008 | CA2281314C Super fine granular steel pipe and method for producing the same |
| 12/04/2008 | WO2008146929A1 Abrasion-resistant steel sheet having excellent processability, and method for production thereof |
| 12/04/2008 | WO2008145872A1 Low density steel with good stamping capability |
| 12/04/2008 | WO2008145327A1 Process for producing a locally hardened profile component, locally hardened profile component and use of a locally hardened profile component |
| 12/04/2008 | US20080295928 Method for Manufacturing High Strength Steel Strips with Superior Formability and Excellent Coatability |
| 12/04/2008 | US20080295924 Steel Sheet Excellent in Workability and Method for Producing the Same |
| 12/04/2008 | US20080295923 Carbon Steel Sheet Superior in Formability and Manufacturing Method Thereof |
| 12/04/2008 | US20080295920 High Tension Steel Plate with Small Acoustic Anisotropy and with Excellent Weldability and Method of Production of Same |
| 12/04/2008 | CA2686940A1 Process for manufacturing cold-rolled and annealed steel sheets with very high strength, and sheets thus produced |
| 12/03/2008 | EP1996738A2 Production system of weldable and stainless tubular structures with high mechanical strength and product obtained therefrom |
| 12/03/2008 | CN100439552C Composite high-strength high-ductility hardened and tempered steel and manufacturing method thereof |
| 12/03/2008 | CN100439550C Long-life alloy die-casting module and manufacturing method thereof |
| 12/03/2008 | CN100439549C Martensitic stainless steel pipe and method for producing the same |
| 12/03/2008 | CN100439546C Excellent weldability 490mpa low yield ratio cold shaping steel pipe and its mfg. method |
| 12/03/2008 | CN100439545C 800 MPa level thick steel plate with high toughness and low yield ratio and its making process |
| 12/03/2008 | CN100439544C High strength cold rolled steel sheet and method for manufacturing the same |
| 12/03/2008 | CN100439543C Hot-rolled super-strength martensitic steel and method for manufacturing same |
| 12/03/2008 | CN100439542C High strength steel sheet and method for manufacturing same |
| 12/03/2008 | CN100439540C Steel material with excellent rolling fatigue life and method of producing the same |
| 12/02/2008 | US7459041 Method for making an abrasion-resistant steel plate |
| 12/02/2008 | US7459039 Making steel with carbide banding by deforming a steel containing chromium, molybdenum, aluminum, vanadium, or tungsten with undissolved carbides; heating a portion of it to form an austenitic steel with undissolved carbides; and cooling to maintain the carbides within a crystalline matrix |
| 12/02/2008 | US7459038 Method for making steel with carbides already in the steel using material removal and deformation |
| 12/02/2008 | US7459033 Oil country tubular goods excellent in collapse characteristics after expansion and method of production thereof |
| 12/02/2008 | CA2361014C Blank for gunbarrel, method for producing said gunbarrel and gunbarrel |
| 11/27/2008 | WO2008142275A2 Microalloyed steel with good resistance to hydrogen for the cold-forming of machine parts having high properties |
| 11/27/2008 | US20080289393 Hot forming and in-situ cooling of metallic articles |
| 11/26/2008 | EP1995341A1 Oil well pipe for expansion in well and two-phase stainless steel for use as oil well pipe for expansion |
| 11/26/2008 | EP1995340A1 Cold-rolled steel sheet, process for producing the same, and cell and process for producing the same |
| 11/26/2008 | EP1995336A1 Low-density steel with good suitability for stamping |
| 11/26/2008 | EP1757376B1 Process for producing seamless steel pipe |
| 11/26/2008 | EP1348771B1 High strength hot rolled steel plate excellent in enlargeability and ductility and method for production thereof |
| 11/26/2008 | CN101311293A Large-scale mold module and method for manufacturing same |
| 11/26/2008 | CN101311291A Austenic stainless steel and method for manufacturing same |
| 11/26/2008 | CN101311290A Nonmagnetic Strength-toughen stainless steel and method for manufacturing same |
| 11/26/2008 | CN101311289A Steel for stamping die and method of manufacture |
| 11/26/2008 | CN101311288A Wire rod for producting1770Mpa bridge cable galvanized steel wire and method for manufacturing same |
| 11/26/2008 | CN101311287A Grain oriented magnetic steel sheet |
| 11/26/2008 | CN100436632C Vanadium treated bake hardening type deep drew steel plates of saloon sedan, and preparation method |
| 11/26/2008 | CN100436631C Low-carbon high-manganese oriented electrical steel plate, and its manufacturing method |
| 11/26/2008 | CN100436630C Sheet slab process low-carbon high-manganese oriented electrotechnical steel sheet, and its manufacturing method |
| 11/26/2008 | CN100436629C Steel product for structural member of automobile and method for production thereof |
| 11/26/2008 | CN100436628C Steel product for induction hardening, induction-hardened member using the same, and methods for producing them |
| 11/25/2008 | US7455739 Shaped reinforcing member for medical device and method for making the same |
| 11/25/2008 | US7455736 Melting, galvanizing, heating, alloying |
| 11/25/2008 | CA2356026C Corrosion-resisting and wear-resisting alloy and device using the same |
| 11/20/2008 | WO2008140873A1 Seam-welded 36 ni-fe alloy structures and methods of making and using same |
| 11/20/2008 | WO2008139639A1 Bend pipe and process for manufacturing the same |
| 11/20/2008 | WO2008138330A1 Use of a steel alloy for axle tubes, and axle tube |
| 11/20/2008 | US20080286603 Steel Sheet for Hot Press Forming Having Excellent Heat Treatment and Impact Property, Hot Press Parts Made of It and the Method for Manufacturing Thereof |
| 11/20/2008 | US20080286504 Steel Plate or Steel Pipe with Small Occurrence of Bauschinger Effect and Methods of Production of Same |
| 11/20/2008 | US20080283161 High strength seamless steel pipe excellent in hydrogen-induced cracking resistance and its production method |
| 11/20/2008 | US20080283158 Method for Manufacturing High Tensile Strength Steel Plate |
| 11/20/2008 | US20080283157 Method of Production of Hot Dipped Hot Rolled Steel Strip |