Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
03/2012
03/29/2012US20120074733 Method for Producing a Metal Component From A Hot-Stamped Raw Material
03/29/2012US20120073708 Method of shaping and hardening a sheet steel blank
03/29/2012DE102011078075A1 Durch Warmbehandlungsnachbearbeitung passendgemachte Eigenschaften Match made by heat treatment finishing properties
03/28/2012EP2434030A1 Stainless steel for oil well, stainless steel pipe for oil well, and process for production of stainless steel for oil well
03/28/2012EP2434028A1 Hollow seamless pipe for high-strength springs
03/28/2012EP2432907A1 Metal foil
03/28/2012CN102392205A Method for preparing precision copper part
03/28/2012CN102392198A Preparation method of non-oriented thin silicon steel strip for motor
03/28/2012CN102392195A High-strength high-toughness nuclear power pressure vessel forging steel and its manufacturing method
03/28/2012CN102392193A Extra thick quenched and tempered steel plate for ocean platform tooth bar and production method thereof
03/28/2012CN102392189A High-Cr ferrite stainless steel and manufacturing method thereof
03/28/2012CN102392188A Preparation method for steel buckle of automatic weaving machine
03/28/2012CN102392187A Cr-containing pipeline steel X70 hot-rolled plate and production method
03/28/2012CN102392186A Manufacturing method of HB500 grade low-manganese wear-resistant steel plate
03/28/2012CN102392182A Production method of non-oriented silicon steel for motor
03/28/2012CN102392181A Alloy steel, seamless steel pipe and heat treatment technology of shaped steel pipe
03/28/2012CN102392114A Thermal calibration method for precisely cast structural pieces of cartridge receiver
03/28/2012CN102389917A Thermoforming method of metal composite board
03/28/2012CN101927432B Manufacturing method of high-manganese strip steel with high strength and plasticity
03/28/2012CN101812634B Low-carbon low-welding crack-sensitive high-strength steel and steel plate and manufacture method thereof
03/28/2012CN101787486B Baking-aging resistant colored steel plate/strip and manufacturing method thereof
03/28/2012CN101755057B Low density steel with good stamping capability
03/28/2012CN101748339B High-strength ferritic stainless steel band and manufacturing method thereof
03/28/2012CN101724779B High-tenacity steel and steel plate adaptive to high heat input welding and production method thereof
03/27/2012CA2491307C Hot-rolled steel sheet for high-strength electric-resistance welded pipe having sour-gas resistance and excellent weld toughness, and method for manufacturing the same
03/22/2012WO2012036483A2 High-carbon hot-rolled steel sheet, cold-rolled steel sheet and a production method therefor
03/22/2012WO2012036312A1 High-strength hot-rolled steel sheet having superior fatigue resistance properties and method for producing same
03/22/2012WO2012036148A1 Thick welded steel pipe having excellent low-temperature toughness, method for producing thick welded steel pipe having excellent low-temperature toughness, and steel sheet for producing thick welded steel pipe
03/22/2012US20120067469 Very thin steel sheet and production method thereof
03/22/2012DE102010012833B4 Längsträger sowie Längsträgeranordnung Longitudinal beams and longitudinal beam arrangement
03/22/2012DE102010012825B4 Querträger sowie Stoßträgeranordnung Crossmember and shock bracket assembly
03/21/2012EP2431492A2 High manganese nitrogen-containing steel sheet having high strength and high ductility, and method for manufacturing same
03/21/2012EP2431491A1 High-strength hot-rolled steel sheet and process for manufacture thereof
03/21/2012EP2431490A1 Cold-rolled steel sheet with excellent formability, shape retentivity, and surface appearance and process for producing same
03/21/2012EP2430199A1 Method for manufacturing hot rolled steel strip product, and hot rolled steel strip product
03/21/2012EP1920078B1 Steel sheet for deep drawing having excellent secondary work embrittlement resistance, fatigue properties and plating properties, and method for manufacturing the same
03/21/2012EP1658387B1 Process of production and production system of high strength galvannealed steel sheet
03/21/2012EP1616971B1 High strength cold rolled steel sheet and method for production thereof
03/21/2012CN102383135A Thermal-treatment manufacture process for clutch plate
03/21/2012CN102383060A Method for manufacturing austenite stainless steel thin strip for electronic product shell
03/21/2012CN102383052A High wear resistance steel for knitting needle and manufacture method thereof
03/21/2012CN102383048A Hot-rolled mining resin anchor rod reinforcing steel bar and production method thereof
03/21/2012CN102383046A Production method for non-oriented electrical steel used for motor
03/21/2012CN102383045A Preparation method of silicon steel for motors
03/21/2012CN102383039A Microalloy HRB500E steel bar containing chrome and nitrogen and production method thereof
03/21/2012CN102383037A Preparation method of high-silicon non-oriented electrical steel for motor
03/21/2012CN102383035A Steel for 10-ton axle shell and production method for steel
03/21/2012CN102383034A Steel for 13-dwt vehicle axle housing and production method thereof
03/21/2012CN102383033A 600-MPa grade vanadium-containing high-strength hot-rolled steel bar and production method thereof
03/21/2012CN102383031A High-strength binding band and production method thereof
03/21/2012CN102382963A Heat treatment method for improving room-temperature ductility of high-silicon electrical steel
03/21/2012CN102382962A Quick spheroidizing annealing technology for GCr15 bearing steel pipe
03/21/2012CN102382961A Production method of ultra-thick steel plate with ensured transverse impact toughness
03/21/2012CN102382950A Conductive wheel electric heating device for cold-rolled ribbed steel bar production line
03/21/2012CN102021294B Thermal processing method of NAK80 steel plates
03/21/2012CN102002566B Seamless steel tube straightening and quenching device
03/21/2012CN101886221B Micro-alloy ultra-fine grained hot rolled steel plate and production method thereof
03/21/2012CN101805821B Integrated stamping forming treatment method of steel
03/20/2012US8137487 Method of production of high strength thin-gauge steel sheet excellent in elongation and hole expandability
03/20/2012US8137484 Method of production of steel superior in machinability
03/20/2012US8137483 Method of making a low cost, high strength, high toughness, martensitic steel
03/20/2012CA2713685C Process for manufacturing stamped products, and stamped products prepared from the same
03/20/2012CA2456495C An ultra high strength steel composition, the process of production of an ultra high strength steel product and the product obtained
03/15/2012WO2012033377A2 High-strength and high-ductility steel sheet, and method for producing same
03/15/2012WO2012033197A1 Oriented electromagnetic steel sheet and process for production thereof
03/15/2012WO2012032792A1 Grain-oriented magnetic steel sheet and process for producing same
03/15/2012US20120060982 Method of producing press-hardened structural parts
03/15/2012CA2808774A1 Grain oriented electrical steel sheet and method for manufacturing the same
03/14/2012EP2013372B1 Method for the production and removal of a temporary protective layer for a cathodic coating
03/14/2012EP1777315B1 Steel for welded structure excellent in low temperature toughness of heat affected zone of welded part, and method for production thereof
03/14/2012CN102378823A Steel wire for high-strength spring
03/14/2012CN102378822A Steel for case hardening which has excellent cold workability and machinability and which exhibits excellent fatigue characteristics after carburizing and quenching, and process for production of same
03/14/2012CN102378819A Method for treating steel for directional electromagnetic steel plate and method for producing directional electromagnetic steel plate
03/14/2012CN102373387A Steel plate for large-strain cold-bent tube and manufacturing method thereof
03/14/2012CN102373386A Process for manufacturing high-performance alloy steel seamless steel tube
03/14/2012CN102373382A Standard sample for Young's modulus performance detection, and preparation method thereof
03/14/2012CN102373381A Method for manufacturing excellent austenitic stainless steel seamless steel tube
03/14/2012CN102373380A High-intensity drilling tool steel and preparation method thereof
03/14/2012CN102373375A Manufacture process of high-performance austenitic steel pipes
03/14/2012CN102373372A High temperature resistant steel for oil well pipe and its manufacturing method
03/14/2012CN102373371A Method for raising large heat input weldability of thick steel plate
03/14/2012CN102373368A Steel for petroleum casing pipe and manufacturing method thereof
03/14/2012CN102373367A Cold-rolled electromagnetic steel plate for rapid cycling synchrotron and manufacturing method thereof
03/14/2012CN102373366A Method for improving coarse grains on surface of non-oriented silicon steel
03/14/2012CN102373322A Break pad pressing method and equipment using pressing jig, and recording media for recoding program for realizing the pressing method
03/14/2012CN101880825B Ultrafine grained hot rolled dual-phase steel with tensile strength of above 750MPa and manufacturing method of plate thereof
03/14/2012CN101484600B High-strength steel pipe with excellent low-temperature toughness for line pipe, high-strength steel plate for line pipe, and processes for producing these
03/13/2012CA2627806C Iron-based alloy having shape memory properties and superelasticity and its production method
03/13/2012CA2564420C Seamless steel tubes and method for producing the same
03/13/2012CA2539072C Hot rolled steel sheet for processing and method for manufacturing the same
03/13/2012CA2529736C High strength steel sheet excellent in formability and method for producing the same
03/08/2012WO2012029945A1 High-strength steel sheet having excellent fracture resistance performance and hic resistance performance
03/08/2012WO2012029812A1 Steel wire material for high-strength spring which has excellent wire-drawing properties and process for production thereof, and high-strength spring
03/08/2012WO2012028224A1 Method for hot forming a coated metal part and formed part
03/08/2012WO2012028111A1 Steel rail for high speed and quasi-high speed railways and manufacturing method thereof
03/08/2012WO2011154831A4 Method for producing a hot-rolled steel product, and a hot-rolled steel
03/08/2012US20120055587 Method of manufacturing a bearing ring
03/08/2012DE10341867B4 Verfahren und Vorrichtung zur Herstellung eines gehärteten Blechprofils Method and apparatus for producing a hardened sheet metal profile
03/08/2012CA2810167A1 High-strength steel sheet having improved resistance to fracture and to hic
03/08/2012CA2809187A1 Method for hot forming a coated metal part and formed part
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