Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
10/2009
10/21/2009CN101560629A Hot rolling strip steel having yield strength being higher than 800MPa and preparation method thereof
10/21/2009CN101560594A Elastic wave treating device
10/21/2009CN101559534A Multi-legged friction-stir welding method for improving properties of welding seam
10/21/2009CN100552055C Grain-oriented magnetic steel sheet with extremely high magnetic property and process for producing the same
10/15/2009WO2009125876A1 High-strength steel sheet for container and process for production thereof
10/15/2009WO2009125863A1 High-strength steel plate excellent in low-temperature toughness, steel pipe, and processes for production of both
10/15/2009WO2009125820A1 PROCESS FOR PRODUCTION OF 780MPa-GRADE HIGH-TENSILE-STRENGTH STEEL PLATES EXCELLENT IN LOW-TEMPERATURE TOUGHNESS
10/15/2009WO2008142275A8 Microalloyed steel with good resistance to hydrogen for the cold-forming of machine parts having high properties
10/15/2009US20090257906 corrosion resistance; solid solutions; useful as valve seat insert for internal combustion engines such as diesel engines
10/15/2009US20090255610 Cold-Rolled Steel Sheet Excellent in Paint Bake Hardenability and Ordinary-Temperature Non-Aging Property and Method of Producing the Same
10/15/2009DE102008001052A1 Mechanically highly stressed machinery component i.e. suction roll sleeve, producing method for use on paper machine, involves altering material characteristics of sleeve based on increase in resistance against vibratory fissure corrosion
10/14/2009CN101558179A Metal gasket and method of making
10/14/2009CN101555571A High-strength high-toughness alloy steel and production method thereof
10/14/2009CN100549206C Non-oriented electromagnetic steel sheet excellent in magnetic properties in rolling direction and method of production of same
10/14/2009CN100549203C Steel plate and tube exhibiting excellent workability and method for producing the same
10/13/2009US7601231 High-strength steel pipe excellent in low temperature toughness and toughness at weld heat-affected zone
10/08/2009WO2009123538A1 Method of manufacturing a press-formed sheet-metal product
10/08/2009WO2009123356A1 High-strength steel plate for a can and method for manufacturing said high-strength steel plate
10/08/2009WO2009123294A1 Method for producing can manufacturing steel sheet
10/08/2009WO2009123292A1 High-tensile strength steel and manufacturing method thereof
10/08/2009WO2009123195A1 Process for production of thick high-tensile-strength steel plates
10/08/2009WO2009123076A1 Refractory steel material with welded joint excellent in unsusceptibility to reheat embrittlement and toughness and process for producing the same
10/08/2009WO2009122653A1 Material for soft-nitrided crankshaft and process for producing the same
10/08/2009WO2009091127A3 Grain oriented electrical steel having excellent magnetic properties and manufacturing method for the same
10/08/2009US20090252641 Hot-Rolled Steel Sheet, Method for Making the Same, and Worked Body of Hot-Rolled Steel Sheet
10/08/2009US20090252640 Steel alloy, a holder or a holder detail for a plastic moulding tool, a tough hardened blank for a holder or holder detail, a process for producing a steel alloy
10/08/2009US20090250147 Dr Steel Sheet and Manufacturing Method Thereof
10/08/2009US20090250146 High Strength Thick-Gauge Electric-Resistance Welded Steel Pipe Excellent in Hardenability, Hot Workability and Fatigue Strength and Method of Production of the Same
10/08/2009US20090250145 Method of producing non-oriented electrical steel sheet excellent in magnetic properties
10/07/2009EP2107130A1 Method to produce grain-oriented electrical steel sheet having high magnetic flux density
10/07/2009EP2106453A1 Method for manufacturing an austenitic steel object
10/07/2009EP1088905B1 Steel sheet for ultra-thin two-piece cans having excellent anti-wrinkling properties and method for producing thereof
10/07/2009CN101550519A Hot rolling biphase plate for vehicle wheel and method for production thereof
10/07/2009CN101550517A Alloy material, production method thereof and cutting tool made by the same
10/07/2009CN101550514A Hot-rolling transformation-induced plasticity steel plate and preparation method thereof
10/07/2009CN101550480A Method for producing oriented silicon steel by using pickling continuous-rolling mill
10/07/2009CN100547105C X80 steel bend pipe and bending technique thereof
10/07/2009CN100547104C Hot-rolled high-strength steel plate for electrostatic enamel and method for manufacturing same
10/07/2009CN100547102C Biphase antibiotic stainless steel and method for making same
10/07/2009CN100547089C Coil winding method for metal bars
10/06/2009US7597768 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
10/06/2009CA2536153C Process of production and production system of high strength galvannealed steel sheet
10/06/2009CA2342256C Hot laminated steel with a very high limit of elasticity and mechanical resistance for use in the production of motor vehicle parts
10/06/2009CA2312674C Aluminum-killed low carbon steel sheet for packaging
10/01/2009WO2009120752A1 Zirconia compatible dental alloy composition
10/01/2009WO2009119751A1 High-strength galvanized steel sheet, high-strength alloyed hot-dip galvanized sheet, and high-strength cold-rolled steel sheet which excel in moldability and weldability, and manufacturing method for the same
10/01/2009WO2009119570A1 Uoe steel tube for linepipes and process for production thereof
10/01/2009WO2009119359A1 Wire rod and high-strength steel wire excellent in ductility, and processes for production of both
10/01/2009WO2009119274A1 High-strength steel sheet excellent in resistance to stress-relief annealing and low-temperature toughness
10/01/2009WO2009117959A1 A manufacturing method of oriented si steel with high electric-magnetic property
10/01/2009US20090242086 Microstructural optimization of automotive structures
10/01/2009US20090242085 Dual phase steel sheet with good bake-hardening properties
10/01/2009CA2697352A1 Steel rod and high strength steel wire having superior ductility and methods of production of same
09/2009
09/30/2009EP2105516A1 High-strength steel sheet excellent in resistance to stress-relief annealing and in low-temperature joint toughness
09/30/2009EP2105513A1 Weld steel pipe with excellent low-temperature toughness for high-strength thick-walled line pipe and process for producing the same
09/30/2009CN101545086A Surface treating method of galvanizing colourful coating steel plate for tear-off tin pull ring
09/30/2009CN101545081A 780 mpa low yield ratio round steel pipe for building structure with excellent shock resistance and production process
09/30/2009CN101545080A 590 mpa high yield ratio round steel pipe for building structure with excellent shock resistance and production process
09/30/2009CN101545079A X80 hot rolled steel plate with good toughness, high strength and low tensile ratio and production method thereof
09/30/2009CN101545071A Steel sheet and method of manufacturing the same, component and method for manufacturing the same
09/30/2009CN101545067A Method for producing pipe line steel J55 by RH refining technology
09/30/2009CN101545063A Extruded member of aluminum alloy excelling in flexural crushing performance and corrosion resistance and method for production thereof
09/29/2009CA2517499C High strength cold rolled steel sheet and method for manufacturing the same
09/29/2009CA2342744C Clad ferritic stainless steel for use in motor vehicle exhausts
09/29/2009CA2312673C Aluminum-killed low carbon steel sheet for packaging
09/29/2009CA2312672C Aluminum-killed medium carbon steel sheet for packaging
09/29/2009CA2311172C Procedure for manufacturing sheets designed for pressing by direct pouring of thin bands, and sheets produced by said procedure
09/24/2009WO2009086461A3 Development of a high strength high toughness bainitic steel
09/24/2009US20090239063 Method of Manufacturing Hot Dip Galvannealed Steel Sheet and Hot Dip Galvannealed Steel Sheet
09/24/2009US20090238715 Steel sheet for hot press forming having low-temperature heat treatment property, method of manufacturing the same, method of manufacturing parts using the same, and parts manufactured by the same
09/23/2009EP2103697A1 High carbon hot-rolled steel sheet and method for production thereof
09/23/2009CN101538684A Stainless steel tube for brake system of rail vehicle and method for producing same
09/23/2009CN101538678A HRB500E high-performance anti-seismic steel bar and production method thereof
09/23/2009CN101538677A HRB500E fine grain anti-seismic steel bar and production method thereof
09/23/2009CN101538665A Aluminum alloy plate for battery box and manufacturing method thereof
09/23/2009CN100543155C Medium carbon steel on-line balling rolling technology
09/22/2009US7591977 High strength and low yield ratio cold rolled steel sheet and method of manufacturing the same
09/22/2009US7591917 Method of producing steel strip
09/22/2009US7591914 High-workability steel pipe and method of producing same
09/22/2009CA2452629C Process for manufacturing a forged steel part and the resulting part
09/22/2009CA2382073C Steel tube for use in reinforcement of automobile and method of production thereof
09/22/2009CA2334672C High-strength galvanized steel sheet having excellent ductility and manufacturing method thereof
09/22/2009CA2325892C Process for producing high resistance rolled metal sheet suitable for forming and cupping
09/17/2009WO2009113938A1 A method of shaping and hardening a sheet steel blank
09/16/2009EP2100983A1 Ferritic stainless steel sheet for water heater excellent in corrosion resistance at welded part and steel sheet toughness
09/16/2009EP1326723B1 A method of producing steel
09/16/2009CN101532113A Anti-collapse oil casing and manufacturing method thereof
09/16/2009CN101532112A Steel plate for panel with excellent toughness in thickness direction of jug line energy welding heat infection part and manufacturing method thereof
09/15/2009US7588651 Method for producing a steel product
09/10/2009US20090223610 High carbon steel wire material having excellent wire drawability and manufacturing process thereof
09/10/2009US20090223609 High-strength hot rolled steel plate and manufacturing method thereof
09/10/2009US20090223607 Method for manufacturing a high strength steel sheet
09/10/2009DE102008012550A1 Thermally treating a tubular body of a delivery pipe, comprises heating and hardening an inner surface of the body, subjecting an outer surface of the body with a coolant, and adjusting the cross-section of the body by a molding tool
09/10/2009DE102006017317B4 Verfahren zum Warmformen mit erweiterten Tiefziehgrenzen A method of thermoforming deep drawing with extended borders
09/09/2009EP2098600A1 High strenght steel sheet having superior ductility and method for manufacturing the same
09/09/2009CN101528951A Unidirectional magnetic steel sheet excellent in iron loss characteristic
09/09/2009CN101525722A Excellent-toughness X70 hot-rolled sheet steel and manufacturing method therefor
09/09/2009CN101525720A Novel special base metal strip for preparing feran
09/09/2009CN100537813C A steel composition for the production of cold rolled multiphase steel products
09/08/2009CA2338775C Hot rolled electromagnetic steel sheet having excellent magnetic properties and corrosion resistance and method of producing the same
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