| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 01/02/2008 | CN101098978A 490 Mpa grade high-tensile steel for welded structure excellent in high-temperature strength and method for producing same |
| 01/02/2008 | CN101096745A Composite high-strength high-ductility hardened and tempered steel and manufacturing method thereof |
| 01/02/2008 | CN101096743A Super-thick non-hardening plastic mold steel and method for manufacturing the same |
| 01/02/2008 | CN101096741A Rare-earth containing high temperature oxidation resistant ferritic stainless steel and method for preparing same |
| 01/02/2008 | CN101096739A Stamping high-strength heating galvanized steel with excellent welding performance and method for manufacturing the same |
| 01/02/2008 | CN101096738A Steel plate with low welding crack sensitivity and production method thereof |
| 01/02/2008 | CN101096737A High-strength straight welding oil annular tube steel and manufacturing method thereof |
| 01/02/2008 | CN101096736A Clean steel and manufacturing method |
| 01/02/2008 | CN101096735A Easy-weld hardening high-strength steel plate and production method thereof |
| 01/02/2008 | CN101096724A Electromagnetic steel having excellent electromagnetic property and method for manufacturing same |
| 01/01/2008 | US7314532 High-strength forged parts having high reduction of area and method for producing same |
| 12/27/2007 | US20070295430 Maraging steel excellent in fatigue characteristics and method for producing the same |
| 12/26/2007 | EP1870484A1 High-strength steel plate and process for production thereof, and high-strength steel pipe |
| 12/26/2007 | EP1371743B1 Electric welded steel tube for hollow stabilizer |
| 12/26/2007 | EP1158064B1 Large bearing parts made of steel |
| 12/26/2007 | CN100357566C Method of repairing a stator vane of gas turbine without removing all the cracks ; repaired gas turbine |
| 12/26/2007 | CN100357478C Method for manufacturing a steel strip or sheet consisting mainly of MN-austenite |
| 12/26/2007 | CN100357475C Tensile strength 540Mpa grade dual phase steel plate and its production method |
| 12/26/2007 | CN100357474C Tensile strength 600Mpa grade dual phase steel plate and its production method |
| 12/26/2007 | CN100357473C Steel product for induction hardening, induction-hardened member using the same, and methods for producing them |
| 12/26/2007 | CN100357471C Cast piece and sheet of ferritic stainless steel, and method for production thereof |
| 12/25/2007 | US7311789 Dual phase steel strip suitable for galvanizing |
| 12/21/2007 | WO2007144964A1 High-strength electromagnetic steel sheet and process for producing the same |
| 12/21/2007 | WO2007108038A8 Production system of weldable and stainless tubular structures with high mechanical strength and product obtained therefrom |
| 12/20/2007 | US20070289717 Method for Making Hot Strips of Lightweight Construction Steel |
| 12/20/2007 | US20070289679 High Strength Cold Rolled Steel Sheet Having Excellent Shape Freezability, and Method for Manufacturing the Same |
| 12/19/2007 | EP1867748A1 Duplex stainless steel |
| 12/19/2007 | EP1867742A1 High-strength steel sheet and high-strength welded steel pipe excelling in ductile fracture performance and process for producing them |
| 12/19/2007 | EP1026266B1 Simplified ladle refining method |
| 12/19/2007 | CN101090982A Method of producing austentic iron/carbon/manganese steel sheets having very high strength and elongation characteristics and excellent homogeneity |
| 12/19/2007 | CN100355928C Steel parts for machine structure, material therefor, and method for manufacture thereof |
| 12/19/2007 | CN100355914C Martensitic stainless steel seamless pipe and a manufacturing method thereof |
| 12/18/2007 | CA2368504C High tensile strength cold rolled steel sheet having excellent strain age hardening characteristics and the production thereof |
| 12/13/2007 | WO2007141152A1 Manganese boron steel, flat products produced from such steel, and production method |
| 12/13/2007 | WO2006050814A3 Device for cooling long objects |
| 12/12/2007 | EP1865086A1 Manganese-boron steel, sheet-like product made of the steel and method of its production |
| 12/12/2007 | EP1865079A1 Wire rod excellent in wire-drawing workability and method for producing same |
| 12/12/2007 | EP1675970B1 A cold-rolled steel sheet having a tensile strength of 780 mpa or more an excellent local formability and a suppressed increase in weld hardness |
| 12/12/2007 | EP1257414B1 Use of a dimensionally stable iron-chrome-aluminum film |
| 12/12/2007 | CN101086051A Non-tempering easy-welding super strong steel and its production method |
| 12/12/2007 | CN100354447C Corrosion-resistant and antibacterial low-nickel austenitic stainless steel |
| 12/12/2007 | CN100354446C Iron-nickel alloy with low coefficient of thermal expansion for making shade masks |
| 12/12/2007 | CN100354445C Non-oriented magnetic steel sheet and method for production thereof |
| 12/12/2007 | CN100354436C Hot-rolled steel sheet for high-strength electric-resistancewelded pipe having sour-gas resistance and excellent weld toughness, and method for manufacturing the same |
| 12/12/2007 | CN100354050C Method for producing coated steel sheet |
| 12/05/2007 | EP1862561A1 Steel for oil well pipe having excellent sulfide stress cracking resistance and method for manufacturing seamless steel pipe for oil well |
| 12/05/2007 | CN101084322A Non-oriented electrical steel sheets with excellent magnetic properties and method for manufacturing the same |
| 12/05/2007 | CN101084321A Iron-nickel alloy strip for the manufacture of support grids for integrated circuits |
| 12/05/2007 | CN101084073A Method for producing hot strips consisting of lightweight steel |
| 12/05/2007 | CN101082112A 110Ksi grade CO2 H2S rust-proof oil well-pipe and manufacturing method |
| 12/05/2007 | CN101082110A Long-life alloy die-casting module and manufacturing method thereof |
| 12/05/2007 | CN101082107A Ultra-low carbon cold-rolling deep-punching glassed steel and method of production |
| 12/05/2007 | CN101082105A High tensile steel excellent in high temperature strength and method for production thereof |
| 12/05/2007 | CN101082102A High-strength ship hull structural steel and production method of plate roll |
| 12/05/2007 | CN101082101A Chromic-nickel-free high-strength high ductility structural steel and manufacturing method thereof |
| 12/05/2007 | CN101082099A Low-yield-ratio straight welding oil annular tube steel and manufacturing method thereof |
| 12/05/2007 | CN100352966C Weldable steel building component and method for making same |
| 12/05/2007 | CN100352963C Soft magnetic structural steel resisting salt fog corrosion and its making process |
| 12/05/2007 | CN100352962C Method for producing X80 pipeline steel having anti-HIC property and its hot-rolled plate |
| 12/05/2007 | CN100352952C Process for prodn. of grain oriented electrical steel strips |
| 12/05/2007 | CN100352574C Method of making a metallic thin wire and a medical tool into which the metallic thin wire is incorporated |
| 11/29/2007 | WO2007136137A1 Process for producing grain-oriented magnetic steel sheet with high magnetic flux density |
| 11/29/2007 | WO2007136127A1 Process for producing grain-oriented magnetic steel sheet with high magnetic flux density |
| 11/29/2007 | WO2007136019A1 High-strength steel pipe with excellent unsusceptibility to strain aging for line piping, high-strength steel plate for line piping, and processes for producing these |
| 11/29/2007 | US20070272333 cross section has a martensitic structure; free of titanium; metal working; high tensile strength with an excellent forming workability; low cost; use in reinforcing in a bumper, or a pillar of an automobile |
| 11/29/2007 | US20070272054 Method and Installation for the Production of Steel Products Having an Optimum Surface Quality |
| 11/28/2007 | EP1860205A1 High strength hot rolled steel sheet having excellent stretch flangeability and its production method |
| 11/28/2007 | EP1860204A1 High tension steel plate, welded steel pipe and method for production thereof |
| 11/28/2007 | CN101078089A High strength hot rolled steel sheet having excellent stretch flangeability and its production method |
| 11/28/2007 | CN101078086A Fatigue cracking resistant expansibility excellent steel plate |
| 11/28/2007 | CN101077562A Method for producing HRB400 reinforcement metal |
| 11/28/2007 | CN100351417C Hot-rolling and low-carbon bainite composite phase material and preparation thereof |
| 11/28/2007 | CN100351415C Ferritic stainless steel sheet with excellent formability, and its manufacturing method |
| 11/28/2007 | CN100351403C Method for preventing coarse grain of deformed high temperature alloy |
| 11/28/2007 | CN100351402C Process for producing steel product and production facility therefor |
| 11/27/2007 | US7300622 Device for generating nanostructures |
| 11/27/2007 | CA2422753C Steel plate excellent in shape freezing property and method for production thereof |
| 11/22/2007 | WO2007132436A2 Process for the production of fine-grained carbon steel strips and strips thus obtainable |
| 11/22/2007 | WO2007108038A3 Production system of weldable and stainless tubular structures with high mechanical strength and product obtained therefrom |
| 11/22/2007 | US20070267110 Method for making high-strength steel pipe, and pipe made by that method |
| 11/21/2007 | EP1857564A2 High-Tensile steel sheet, steel sheet joining process and high-strength automotive part |
| 11/21/2007 | EP1857562A1 Bake-hardening hot-rolled steel sheet with excellent workability and process for producing the same |
| 11/21/2007 | CN101076612A Martensitic stainless steel pipe for oil well |
| 11/21/2007 | CN101074469A Forged (rolled) abrasive austenic permanganic steel and its manufacture |
| 11/20/2007 | CA2295582C Ultra-high strength, weldable steels with excellent ultra-low temperature toughness |
| 11/20/2007 | CA2207382C Ultra-high strength steels and method thereof |
| 11/14/2007 | EP1854902A1 Martensitic stainless steel excellent in machinability |
| 11/14/2007 | EP1534869B1 Very high mechanical strength steel and method for making a sheet thereof coated with zinc or zinc alloy |
| 11/14/2007 | CN101070579A Martensitic stainless steel seamless pipe and a manufacturing method thereof |
| 11/14/2007 | CN100348767C Strength of extension 750-795 MPa grade double-phase steel plate and mfg. method thereof |
| 11/14/2007 | CN100348766C A cold-rolled steel sheet having a tensile strength of 780 MPa or more an excellent local formability and a suppressed increase in weld hardness |
| 11/14/2007 | CN100348754C Method for preparing micro-grain silicon bronze alloy |
| 11/14/2007 | CN100348741C Process for control of inhibitors distribution in production of grain oriented electrical steel strips |
| 11/13/2007 | US7294412 High-strength hop-dip galvanized steel sheet |
| 11/13/2007 | US7294212 High-strength stainless steel material in the form of a wheel rim and method for manufacturing the same |
| 11/08/2007 | WO2007126005A1 Process for producing stainless-steel pipe |
| 11/08/2007 | WO2007125571A1 Steel sheet with less weld buckling deformation, and process for producing the same |
| 11/08/2007 | WO2001081026A3 Method for processing metal and alloy billets |
| 11/08/2007 | US20070256762 Process for producing shaped steel parts |
| 11/08/2007 | DE102006019567B3 Verfahren zum Herstellen umgeformter Stahlbauteile A method of manufacturing of formed steel members |