Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
05/2005
05/11/2005CN1614067A Superfine crystal particle hot-rolling steel plate with thick specification and production thereof
05/11/2005CN1614038A Softening treatment of moderate alloy nickle serial cold working mold steel
05/11/2005CN1201028C High manganese deplex stainless steel having superior hot workabilities and method for manufacturing thereof
05/11/2005CN1201027C Hydraulic shaped welded steel pipe and mfg. method thereof
05/11/2005CN1200782C Method and installation for producing thin flat products
05/10/2005US6890393 Thermal mechanical treatment and strengthened with a uniform dispersion of coarsening resistant; iron based
05/10/2005CA2262288C Martensitic stainless steel having oxide scale layers and method of manufacturing the same
05/06/2005WO2005040443A1 Stainless steel wire, spring, and method for producing spring
05/06/2005WO2005040442A1 Two-side enamelable hot-rolled band or sheet metal made of steel, more particularly if steel
05/06/2005WO2004111279A3 Method and installation for the production of hot-rolled strip having a dual-phase structure
05/04/2005EP1528115A1 Very thin, high carbon steel wire and method of producing same
05/04/2005EP1527829A1 Cooling device, manufacturing method, and manufacturing line for hot rolled steel band
05/04/2005EP1356127B1 Process for the production of grain oriented electrical steel strips
05/04/2005EP1291447B1 Cold-rolled steel sheet having excellent strain aging hardening properties and method for producing the same
05/04/2005CN1612943A Method for producing grain-oriented silicon steel plate with mirror surface
05/04/2005CN1611617A Method for manufacturing oriented silicon steel plate
05/04/2005CN1611616A Method for manufacturing cold-rolled orientation-free electrical sheet
05/04/2005CN1200130C Thin alloy sheet of low thermal expansion and shadow mask using the same
05/04/2005CN1200129C Material for shadow mask, method for rpoduction thereof, shadow mask comprising the material and picture tube using the shadow mask
05/04/2005CN1199748C Method for production of non-oriented electrical steel
05/03/2005US6887590 Hot strip is produced from IF (interstitial-free) steel; hot strip is coiled; cold strip is rolled from the coiled hot strip; recrystallisation-annealed in an annealing furnace; cold strip is provided with a zinc coating; post-annealing
04/2005
04/28/2005WO2005038068A1 Steel alloy for injection molds
04/28/2005WO2005038067A1 Expansible seamless steel pipe for use in oil well and method for production thereof
04/28/2005WO2004087968A3 Method for the thermomechanical treatment of steel
04/28/2005WO2004087367A3 Method for producing helical springs or stabilisers
04/28/2005US20050087271 Made from steel having a strain aging characteristic and closed section at a cross section perpendicular to an axis of the reinforced member; press-formed steel generates compression strain; high strength, noncracking
04/28/2005US20050087270 Alloy composed of carbon, silicon, manganese and iron; exothermic peak in 60 to 130 degree temperature range on a differential scanning thermal analysis curve; delamination prevention in high speed stranding; high strength and ductility
04/27/2005EP1207213B1 High tensile cold-rolled steel sheet excellent in ductility and in strain aging hardening properties, and method for producing the same
04/27/2005CN1610762A Steel sheet for vitreous enameling and method for producing the same
04/27/2005CN1610760A Method of continuously casting electrical steel strip with controlled spray cooling
04/27/2005CN1609252A Very thin, high carbon steel wire and method of producing same
04/27/2005CN1609238A Softening annealing heat treating method for 1Cr17Ni2 stainless steel
04/27/2005CN1198963C Orientation electric steel plate and its making method
04/26/2005US6884388 For use in disc brakes; heat resistance/workability
04/26/2005CA2340680C High carbon steel wire excellent in wire drawability and in fatigue resistance after wire drawing
04/21/2005WO2005035815A1 Martensitic stainless steel pipe and method for production thereof
04/21/2005WO2005035800A1 Low carbon alloy steel tube having ultra high strength and excellent toughnes at low temperature and method of manufacturing the same
04/21/2005US20050081966 Melting, galvanizing, heating, alloying
04/21/2005US20050081964 A Method Of Establishing Stress Relieving Procedures For Minimizing Sulfide Stress Cracking In Cold Worked Metals
04/21/2005US20050081602 Process as well as device for measuring a component amount released during a thermo-chemical treatment of metallic work piece from the gaseous atmosphere
04/20/2005CN1197986C Titaniferous ultra high strength metastable austenitic stainless steel and its manufacture
04/19/2005US6881282 Heating steel slabs to a pre-determined temperature, hot rolling to pre-determined width/thickness, spraying with water to remove scaling, pickling steel strips in acid to remove scaling, rinsing, drying the strips, cold rolling, stamping
04/14/2005WO2005033349A1 High-strength magnetic steel sheet and worked part therefrom, and process for producing them
04/14/2005US20050079087 Steel alloy for injection molds
04/14/2005US20050076975 Stored gas inflator pressure vessel; automotive airbag inflator; ductile-to-brittle transition subzero temperature; cold drawing, austenizing heating; metal working
04/14/2005DE10259230B4 Verfahren zum Herstellen eines Stahlprodukts A method of manufacturing a steel product
04/13/2005EP1521856A1 Martensitic stainless steel seamless pipe and a manufacturing method thereof
04/13/2005EP1453984B1 Method for the production of hot strip or sheet from a micro-alloyed steel
04/13/2005EP1444371B1 In-line process for the recrystallization of solidified coarse strips in carbon steel and in low-alloyed steel
04/13/2005EP0945522B1 Method of producing a hot rolled sheet having ultra fine grains
04/13/2005CN1606630A Method and device for controlled straightening and cooling of a wide metal strip, especially a steel strip or sheet metal, running out of a hot rolled strip rolling mill
04/13/2005CN1606629A In-line process for the recrystallization of solidified coarse strips in carbon steel and in low-alloyed steel and so obtainable strips having a highly checked microstructure
04/13/2005CN1196805C Steel sheet for heat shrink band and heat shrink band
04/13/2005CN1196801C Grain-oriented magnetic steel sheet having no under coat film comprising forsterite as primary component and having good magnetic characteristics and its producing method
04/12/2005US6878219 High strength steel pipe for an air bag and a process for its manufacture
04/07/2005WO2005031946A1 Rotor using electrical steel sheet of low iron loss, rotor manufacturing method, laser peening method, and laser peening device
04/07/2005WO2005031024A1 High-yield-ratio high-strength thin steel sheet and high-yield-ratio high-strength hot-dip galvanized thin steel sheet excelling in weldability and ductility as well as high-yield-ratio high-strength alloyed hot-dip galvanized thin steel sheet and process for producing the same
04/07/2005WO2005031022A1 High strength steel sheet excellent in deep drawing characteristics and method for production thereof
04/07/2005WO2004082872A3 Method and apparatus for strengthening of powder metal gears by ausforming
04/07/2005US20050073170 Automobile strength member
04/07/2005US20050072499 Method and installation for producing a hot rolled strip from austenitic rust-resistant steels
04/07/2005CA2747654A1 High yield ratio and high-strength thin steel sheet superior in weldability and ductility, high-yield ratio high-strength hot-dip galvanized thin steel sheet, high-yield ratio high-strength hot-dip galvannealed thin steel sheet, and methods of production of same
04/06/2005EP1520741A2 Automobile strength member, particularly side impact beam
04/06/2005CN1603676A Automobile strength member
04/06/2005CN1603057A Precision casting and extrusion processing technique of high-carbon chromium bearing steel cycloid wheel
04/05/2005US6875947 Method of manufacturing a welding stud
03/2005
03/31/2005WO2005028693A1 Hot rolled steel sheet for working
03/31/2005WO2004108971A3 Method and installation for the production of steel products having an optimum surface quality
03/31/2005US20050067067 Method for producing a metal strip from an iron-nickel alloy for tensioned shadow masks
03/31/2005US20050067053 Hot-rolled steel strip provided for producing non grain-oriented electrical sheet, and method for the production thereof
03/31/2005DE10341867A1 Production of a hardened sheet metal profile comprises deforming the profile from an original shape into an intermediate shape, heating the deformed profile to a hardening temperature, and hardening the heated profile by defined cooling
03/30/2005EP1518001A1 Super formable high strength steel sheet and method of manufacturing thereof
03/30/2005CN1600904A Mickel coated steel strap for deep drawing and preparation method
03/30/2005CN1600876A Method for guaranteeing temperature of finishing to gage of non orientating silicon steel
03/29/2005CA2243457C Drawing stock for reinforcing plastic or rubber articles
03/24/2005US20050064107 Method for producing coated steel sheet
03/24/2005US20050061404 Method of producing a cold temperature high toughness structural steel
03/23/2005EP1516938A1 Steel for crude oil tank and method for manufacture thereof, crude oil tank and method for protecting corrosion thereof
03/23/2005EP1516937A1 High-strength cold rolled steel sheet and process for producing the same
03/23/2005EP1516935A1 Method for producing seamless steel pipe for inflator of air bag
03/23/2005EP1516934A1 Oil well steel pipe excellent in crushing resistance characteristics after pipe expansion
03/23/2005EP1201780B1 Steel plate having excellent burring workability together with high fatigue strength, and method for producing the same
03/23/2005CN1599804A Steel sheet for container and method of producing the same
03/23/2005CN1599802A High-strength thin steel sheet drawable and excellent in shape fixation property and method of producing the same
03/23/2005CN1598032A High-carbon hot-rolled steel plate, cold-rolled steel plate and making method thereof
03/23/2005CN1194112C High-strength steel plate with fine working property and coating layer bond strength and method for making same
03/22/2005US6869691 High strength hot-dip galvanized steel sheet and method for manufacturing the same
03/22/2005US6868709 Apparatus and method for thermomechanically forming an aluminide part of a workpiece
03/17/2005WO2005024082A1 Hot rolled steel sheet and method for production thereof
03/17/2005WO2005024072A1 Manufactured steel chain blank, use thereof, method for producing a chain and chain produced by said method
03/17/2005WO2003052152A8 Nano-compsite martensitic steels
03/17/2005DE19928764B4 Eisen-Kobalt-Legierung mit geringer Koerzitivfeldstärke und Verfahren zur Herstellung von Halbzeug aus einer Eisen-Kobalt-Legierung Iron-cobalt alloy with a low coercive field strength and method of producing semi-finished products made of an iron-cobalt alloy
03/17/2005DE10339119B3 Method of making hardened steel structural component, involves cutting panel from coil, heating, hardening and cold-forming to form structural component
03/16/2005EP1514951A1 High strength cold rolled steel plate and method for production thereof
03/16/2005EP1513961A1 Steel sheet for vitreous enameling and production method
03/16/2005CN1594638A Shell cover material for solenoid valve and preparing method thereof
03/16/2005CN1594637A Stainless steel core iron for solenoid valve and preparing method thereof
03/16/2005CN1594632A High magnetic induction wide temperature interval linear magnetic temperature compensating alloy and production process thereof
03/16/2005CN1193110C High strength two phase thin steel plate, high strength two phase electroplated thin steel plate and method for their production
03/15/2005US6866725 Alloy of iron, carbon, silicon, and manganese; high strength; hydroforming; automobile undercarriage