| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 04/30/2008 | CN101171354A Heat-resistant steel product and method for production thereof |
| 04/30/2008 | CN101169984A Million-kilowatts-class nuclear power pressure container safe end manufacture process |
| 04/30/2008 | CN101168826A High-performance low-carbon bainite construction steel and producing method thereof |
| 04/30/2008 | CN101168825A Diphase stainless steel with special magnetic property and manufacturing method thereof |
| 04/30/2008 | CN101168824A Leadless easy-cutting steel for medium-hard tooth face heavy load gear wheel and preparation method thereof |
| 04/30/2008 | CN101168823A Steel for high-plasticity continuous oil pipe and manufacturing method thereof |
| 04/30/2008 | CN101168822A High ductility nickel-free ferrite stainless steel and manufacturing method thereof |
| 04/30/2008 | CN101168819A Vanadium-containing hot rolled steel plate and preparation method thereof |
| 04/30/2008 | CN101168818A Fe-36Ni based alloy wire and manufacturing method thereof |
| 04/30/2008 | CN101168793A Medium cooling and following rolling model supporting method in niobium-containing thick steel plate rolling process |
| 04/30/2008 | CN100385032C Middle content chromium copper, iron-containing antiseptic anticreas rustless steel sheet belt and its production method |
| 04/30/2008 | CN100385020C Method for producing helical springs or stabilisers. |
| 04/30/2008 | CN100385019C Process of production and production system of high strength galvannealed steel sheet |
| 04/29/2008 | US7364629 applying an aqueous slurry or dry coating by electrostatics; annealing separators consisting mainly of alumina on decarburized-annealed sheets having oxidized layers to provide a mirror-like surface after finish-annealing, to decrease iron losses properties; cores of transformers and electric appliances |
| 04/24/2008 | US20080092996 Steel containing C 0.1% to 0.5%; Si + Al 0.5% to 3%; Mn 0.5% to 3%; P 0.15% or less; S 0.02% or less; superior in elongation and also in the balance of strength and reduction of area even if the working ratio is set high; single heat treatment, forging, tempering, quenching |
| 04/23/2008 | EP1914324A1 Process for producing seamless steel pipe |
| 04/23/2008 | CN101165203A Ultrahigh-intensity high-toughness X120 pipe line steel and manufacturing method thereof |
| 04/23/2008 | CN101165202A High-strength steel with high welding heat influence area toughness and manufacturing method thereof |
| 04/22/2008 | US7361237 Smelting. hot rolling, cold rolling, crystallization |
| 04/22/2008 | US7361236 Toughness; high strength; containing carbides; oil well pipes |
| 04/17/2008 | US20080088451 Marker for a magnetic theft protection system and method for its production |
| 04/17/2008 | DE19934989B4 Magnetisches Verbundelement, Verfahren zum Herstellen des ferromagnetischen Teils desselben sowie Verfahren zum Herstellen des unmagnetischen Teils desselben Of the same composite magnetic element, the same method for manufacturing the ferromagnetic portion and method of manufacturing the non-magnetic portion |
| 04/16/2008 | EP1911856A1 Copper alloys |
| 04/16/2008 | EP1911536A1 Hot forging equipment |
| 04/16/2008 | EP1909994A1 Production of thin steel strip |
| 04/16/2008 | EP1570094B1 Method for manufacturing high silicon grain-oriented electrical steel sheet with superior core loss property |
| 04/16/2008 | CN101163807A High tension steel plate, welded steel pipe and method for production thereof |
| 04/16/2008 | CN101161847A High-ductility steel for hot-bending bends and production method for hot rolled plates thereof |
| 04/16/2008 | CN101161842A Method for determining Ti addition amount of 700MPa grade Ti micro-alloying high-strength weathering steel |
| 04/16/2008 | CN100381597C Hot rolled steel sheet and method for production thereof |
| 04/16/2008 | CN100381589C Method of producing austenitic iron/carbon/manganese steel sheets having a high strength and excellent toughness and being suitable for cold forming, and sheets produced thereby |
| 04/16/2008 | CN100381588C Method and device for the production of hot-rolled strip having a dual-phase structure |
| 04/15/2008 | US7357060 Vehicle armor |
| 04/15/2008 | CA2463783C Martensitic stainless steel and method for manufacturing same |
| 04/13/2008 | CA2607784A1 High strength and sagging resistant fin material |
| 04/10/2008 | WO2007144516A3 Duplex stainless steel |
| 04/09/2008 | EP1908852A1 Bearing device for wheel |
| 04/09/2008 | EP1827720B1 Method for producing hot strips consisting of lightweight steel |
| 04/09/2008 | EP1063313B1 Steel wire and method of manufacturing the same |
| 04/09/2008 | CN101160183A Process and installation for producing a lightweight structural steel with a high manganese content |
| 04/09/2008 | CN101158010A Hot dip zinc plated steel sheet having high strength and method for producing the same |
| 04/09/2008 | CN101158009A Hot dip zinc plated steel sheet having high strength and method for producing the same |
| 04/09/2008 | CN101158005A Method for improving low-alloy high-strength steel structure and performance |
| 04/09/2008 | CN101157971A Rolled steel manufacture equipment |
| 04/09/2008 | CN100379884C Method for producing ultra high temperature bainitic steel in ultralow carbon |
| 04/08/2008 | US7354493 Method and device for patenting steel wires |
| 04/08/2008 | US7354487 Cooled and annealed bainite steel part, and a method of manufacturing it |
| 04/08/2008 | CA2384563C Stainless steel tube for automobile structure |
| 04/03/2008 | US20080078478 Method of manufacturing martensitic stainless steel |
| 04/03/2008 | DE102006045871A1 Verfahren zur thermomechanischen Behandlung von nahtlos auf Radial-Axial-Ringwalzmaschinen hergestellten Ringen Method for the thermomechanical treatment of seamless produced in radial-axial ring rolling machines rings |
| 04/03/2008 | DE102006032617B4 Verfahren zur Herstellung eines zum Formhärten geeigneten Blechhalbzeugs Process for the preparation of a suitable for stamping metal, semi-finished |
| 04/02/2008 | EP1905851A1 High-carbon hot-rolled steel sheet and process for producing the same |
| 04/02/2008 | EP1905850A1 Process for manufacture of cold-rolled high-carbon steel plate |
| 04/02/2008 | EP1905848A2 Cold-rolled steel sheet or hot-rolled steel sheet excellent in painting bake hardenability and anti aging property at room temperature, and method of producing the same |
| 04/02/2008 | EP1365037B1 High strength steel sheet having excellent formability and method for production thereof |
| 04/02/2008 | CN101153376A Method for manufacturing high-vanadium, high-cobalt high speed steel |
| 04/02/2008 | CN101153374A Steel for paper cutter blade and method of producing the same |
| 04/02/2008 | CN101153373A Oil bushing steel and manufacturing process thereof |
| 04/02/2008 | CN101153371A High-strength cold-formed hot continuous rolled steel plate and method of preparing the same |
| 04/02/2008 | CN101153370A Low alloy high-strength steel plate capable of being welded in large energy input and method of producing the same |
| 04/02/2008 | CN101153369A Cold-rolled high-strength diphasic strip steel and manufacturing process thereof |
| 04/02/2008 | CN101153368A Method for producing dyname sheet |
| 04/02/2008 | CN101153367A Fine crystal strengthen carbon constructional steel and manufacture process for hot-rolling thin slab thereof |
| 04/02/2008 | CN100378241C High strength hot rolled steel sheet excelling in bore expandability and ductility and process for producing the same |
| 04/01/2008 | CA2360070C Hot dip galvanized steel plate excellent in balance of strength and ductility and in adhesiveness between steel and plating layer |
| 03/27/2008 | US20080073005 Fine-grained martensitic stainless steel and method thereof |
| 03/27/2008 | DE102006041902A1 Bauteile aus Ultrahochkohlenstoffhaltigen Stählen mit reduzierter Dichte und hoher Zunderbeständigkeit Components made of ultra-high carbon-containing steels with reduced density and high temperature oxidation resistance |
| 03/26/2008 | CN101151427A A method and apparatus for forming metal reinforcing |
| 03/26/2008 | CN101151393A High-strength steel plate and process for production thereof, and high-strength steel pipe |
| 03/26/2008 | CN101151387A Thick seamless steel pipe for line pipe and method for production thereof |
| 03/26/2008 | CN101151381A Hot-forged products excellent in fatigue strength, process for production thereof, and machine structural parts |
| 03/26/2008 | CN101148742A Ultra-fine ferrite crystal grain low-alloy steel and manufacturing method thereof |
| 03/26/2008 | CN101148741A Thin belt continuous casting austenitic stainless steel belt and manufacturing method thereof |
| 03/26/2008 | CN101148735A Method for rolling thick specification low-alloy structure steel plate by using middle and thin plate blank |
| 03/25/2008 | US7347902 High tensile hot rolled steel sheet excellent in shape freezing property and endurance fatigue characteristics after forming |
| 03/25/2008 | CA2470258C A spectacle frame |
| 03/20/2008 | WO2008032829A1 High strength high carbon steel wire and method for manufacture thereof |
| 03/20/2008 | WO2008032483A1 Process for manufacturing grain-oriented silicon steel sheet of high magnetic flux density |
| 03/20/2008 | WO2008007192A3 Process for manufacturing iron-carbon-manganese austenitic steel sheet with excellent resistance to delayed cracking, and sheet thus produced |
| 03/19/2008 | EP1900837A1 High-strength wire rod excelling in wire drawing performance and process for producing the same |
| 03/19/2008 | EP1900829A1 Process and device for tempering steel strips |
| 03/19/2008 | EP1899490A1 Austenitic stainless steel strip having a bright surface finish and excellent mechanical properties |
| 03/19/2008 | CN101146924A Steel for oil well pipe having excellent sulfide stress cracking resistance and method for manufacturing seamless steel pipe for oil well |
| 03/19/2008 | CN101144141A Steel for high-strength 13Cr oil sleeve and manufacturing method thereof |
| 03/19/2008 | CN101144140A Flying shear blade and preparation method thereof |
| 03/19/2008 | CN101144139A Steel for high-strength weather-proof low-alloy electric force bar and preparing method thereof |
| 03/19/2008 | CN101144138A Steel plate for low temperature pressure container and producing method thereof |
| 03/19/2008 | CN101144137A Steel for niobium-containing high-strength corrosion-resistant steel bar and rolling technique thereof |
| 03/19/2008 | CN101144136A Steel for vanadium-containing high-strength corrosion-resistant steel bar and producing technique thereof |
| 03/19/2008 | CN101144113A Technique for producing deep-drawing cold-rolled plate based on CSP technique |
| 03/18/2008 | CA2266825C Non-oriented electromagnetic steel sheet excellent in magnetic characteristics after stress relief annealing and method of manufacturing the same |
| 03/18/2008 | CA2139522C Continuous method for producing final gauge stainless steel product |
| 03/13/2008 | WO2008029583A1 Fire-resistant steel excellent in high-temperature strength, toughness and reheat embrittlement resistance and process for production of the same |
| 03/13/2008 | US20080060728 Method of manufacturing a nonoriented electromagnetic steel sheet |
| 03/12/2008 | EP1897964A1 High-strength wire rod excelling in wire drawing performance and process for producing the same |
| 03/12/2008 | EP1897961A1 Hot-forged products excellent in fatigue strength, process for production thereof, and machine structural parts |
| 03/12/2008 | EP1551591A4 Seam-welded air hardenable steel tubing |
| 03/12/2008 | CN101142336A Linepipe steel |
| 03/12/2008 | CN101142335A High tensile steel product excellent in delayed fracture resistance and method for production thereof |
| 03/12/2008 | CN101139685A High-strength antifatigue steel products and method for manufacturing same |