| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 10/05/2004 | US6800144 Hot forging the steel; machining and optionally piercing the forged product; carburizing and quenching and tempering the machined steel to attain an effective case depth of 0.4 to 0.9 mm |
| 09/30/2004 | WO2004083465A1 Grain-oriented magnetic steel sheet excellent in magnetic characteristic and its manufacturing method |
| 09/30/2004 | WO2004082872A2 Method and apparatus for strengthening of powder metal gears by ausforming |
| 09/30/2004 | WO2003076673A8 High-resistant, low-density hot laminated sheet steel and method for the production thereof |
| 09/30/2004 | US20040187982 Hot-rolled steel strip for high strength electric resistance welding pipe and manufacturing method thereof |
| 09/30/2004 | US20040187981 Pealite base rail excellent in wear resistance and ductility and method for production thereof |
| 09/29/2004 | EP1462536A1 Steel pipe excellent in formability and method of producing the same |
| 09/29/2004 | EP1462535A1 Hot-rolled steel strip for high strength electric resistance welding pipe and manufacturing method thereof |
| 09/29/2004 | EP1461466A1 Nano-compsite martensitic steels |
| 09/29/2004 | EP1214457B1 Use of a stainless steel for umbilicals in seawaters |
| 09/29/2004 | EP1182268B1 High strength, high toughness, seamless steel pipe for line pipe |
| 09/29/2004 | EP0914480B1 Process for producing an easily shaped cold-rolled sheet or strip |
| 09/29/2004 | CN1532296A Process for producing supper fine refined steel |
| 09/29/2004 | CN1168843C Magnetostriction control type allpy plate and structural element for colour kinescope and process for producting magnetostriction control type alloy plate |
| 09/28/2004 | US6797410 Usable for a vehicle body of an automobile or the like |
| 09/28/2004 | US6797078 Strip of hot rolled steel of very high strength, usable for shaping and particularly for stamping |
| 09/28/2004 | US6797031 Wire-shaped product, method for its manufacturing, and wear part made of the product |
| 09/27/2004 | CA2461831A1 Hot-rolled steel strip for high strength electric resistance welding pipe and manufacturing method thereof |
| 09/23/2004 | DE10042864B4 Verfahren zur Herstellung gehämmerter Hohl- und/oder Vollprofile und danach hergestellte Rohlinge Process for the preparation hammered hollow and / or solid profiles and then made blanks |
| 09/23/2004 | CA2529720A1 Iron-chromium-aluminum alloy |
| 09/22/2004 | EP1458896A1 High strength cold rolled steel sheet with superior formability and weldability, and manufacturing method therefor |
| 09/22/2004 | EP1228254B1 Method for making carbon steel bands, in particular packaging steel bands |
| 09/21/2004 | US6794440 Tear resistant gelatinous elastomer compositions and articles for use as fishing bait |
| 09/21/2004 | US6793745 Maraging type spring steel |
| 09/16/2004 | WO2004079022A1 Method of producing a cold-rolled band of dual-phase steel with a ferritic/martensitic structure and band thus obtained |
| 09/16/2004 | WO2004079021A1 Method of producing ultra-high-strength cold- and hot-rolled steel sheets and plate thus obtained |
| 09/16/2004 | WO2004070064A3 Ultrahigh strength hot-rolled steel and method of producing bands |
| 09/16/2004 | US20040177905 excellent in stretch-flangeability and spot-weldability; weight reduction of automobile; continuous annealing; suppression of transformation of austenite into ferrite |
| 09/16/2004 | CA2513065A1 Method of producing ultra-high-strength cold- and hot-rolled steel sheets and plate thus obtained |
| 09/15/2004 | EP1456421A1 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 |
| 09/15/2004 | EP1007232B1 Method for the manufacture of a steel strip |
| 09/15/2004 | CN1529764A Ultra-high magnetic fiux density unidirectional electrical steel sheet excellent in high magnetic field iron loss and coating characteristic and production method thereof |
| 09/15/2004 | CN1528921A High-silica silicon-steel sheet heat treatment and multiple cold-rolling method |
| 09/15/2004 | CN1166805C High strengt austenic stainless steel belt with excellent straightness and its making process |
| 09/15/2004 | CN1166492C Process for preparing shaped steel fibres |
| 09/15/2004 | CN1166464C Process and device for producing a steel strip or sheet |
| 09/08/2004 | EP1453984A1 Method for the production of hot strip or sheet from a micro-alloyed steel |
| 09/08/2004 | EP1326723A4 A method of producing steel |
| 09/08/2004 | CN1165633C Anti-fatigue crack fine expansitivity steel material and method for making same |
| 09/07/2004 | US6786981 Ferritic stainless steel sheet for fuel tank and fuel pipe |
| 09/02/2004 | WO2004073900A1 A method for processing a steel product, and product produced using said method |
| 09/02/2004 | WO2004073899A2 Rolled product in aluminium or stainless steel |
| 09/02/2004 | US20040171333 Method of manufacturing an endodontic instrument |
| 09/02/2004 | US20040168753 Steel sheet and method for manufacturing the same |
| 09/01/2004 | EP1452616A1 Ferritic stainless steel sheet excellent in press formability and workability and method for production thereof |
| 09/01/2004 | EP1452247A1 Method of manufacturing steel plate |
| 09/01/2004 | EP1147234B1 Method for treating a brittle thin metal strip and magnetic parts made from a nanocrystalline alloy strip |
| 09/01/2004 | CN1164785C Stainless steel pipe with excellent suitability for secondary processing for automotive structure member |
| 09/01/2004 | CN1164772C Process for fining ferrite grains of low-carbon steel |
| 08/31/2004 | US6783612 Method and apparatus for in-line heat treatment of hot rolled stock |
| 08/31/2004 | US6783609 To be made into steel wires for tire reinforcement, steel wires for prestressed concrete, and steel wires for ropes |
| 08/31/2004 | US6783438 Method of manufacturing an endodontic instrument |
| 08/26/2004 | WO2004072308A2 Fine-grained martensitic stainless steel and method thereof |
| 08/26/2004 | US20040166360 Hot press forming method, and a plated steel material therefor and its manufacturing method |
| 08/26/2004 | US20040163436 Method of metal and alloy billet treatment |
| 08/26/2004 | CA2515219A1 Fine-grained martensitic stainless steel and method thereof |
| 08/25/2004 | EP1449933A1 Power transmission belt |
| 08/25/2004 | EP1449596A1 A method for processing a steel product, and product produced using said method |
| 08/25/2004 | EP1228255B1 Method for producing a hot strip |
| 08/25/2004 | CN1163916C Ultralow-iron-loss grain oriented silicon steel plate and process for producing same |
| 08/25/2004 | CN1163915C Soft magnet-nickel alloy |
| 08/24/2004 | US6780261 Method of manufacturing an implantable stent having improved mechanical properties |
| 08/24/2004 | CA2171079C Ballistic resistant metal armor plate |
| 08/19/2004 | WO2004070064A2 Ultrahigh strength hot-rolled steel and method of producing bands |
| 08/19/2004 | WO2004056501A3 Method for making structural elements by machining thick plates |
| 08/19/2004 | US20040159380 Ferritic stainless steel sheet with excellent workability and method for making the same |
| 08/19/2004 | US20040159373 main structure of retained austenite (5-30 area %) and ferrite (no less than 50 area %); there exist no more than 40 carbide grains per 2000 mu m2 between the retained austenite and the ferrite; high strength; suitable for automobiles |
| 08/19/2004 | DE102004003541A1 Stahl zur Verwendung in einer hochfesten Ritzelwelle und Herstellungsverfahren hierfür Steel for use in high strength pinion shaft and manufacturing method thereof |
| 08/18/2004 | EP1447158A2 Method for producing rack bar |
| 08/18/2004 | EP1446512A1 Martensitic stainless steel and method for manufacturing same |
| 08/18/2004 | CN1522311A Pealite based rail excellent in wear resistance and ductility and method for production thereof |
| 08/18/2004 | CN1522310A Metal gasket and a material for its manufacture and a method for their manufacture |
| 08/18/2004 | CN1521092A Steel strapping |
| 08/18/2004 | CN1162566C Method for making steel plate for drum cans |
| 08/18/2004 | CN1162564C Cold rolling electromagnetic pure iron plate having very low coercive force and production method thereof |
| 08/17/2004 | US6777863 Material for aperture grill for color picture tube, process for making the same, aperture grill, and picture tube |
| 08/17/2004 | US6776857 Method and device for manufacturing a hot rolled steel strip |
| 08/17/2004 | US6776856 Aluminum-killed medium-carbon steel sheet for containers |
| 08/17/2004 | US6776855 Maraging steel excellent in fatigue characteristics and method for producing the same |
| 08/12/2004 | WO2004067790A1 Steel pipe for bearing elements, and methods for producing and cutting the same |
| 08/12/2004 | US20040154708 Drawability,stretchability, workability; contorlling concentration; mixing with mixed oxide ; solidification ; hot rolling , annealing, cold rolling |
| 08/12/2004 | US20040154707 Heat treatment, hot rolling, cooling, tempering; microstructure |
| 08/12/2004 | US20040154706 High strength, corrosion resuistance, impact strength, toughness |
| 08/12/2004 | DE10303757A1 Manufacturing method of gear with 90-180 teeth, by forging, annealing, trimming and grinding initial product of gear, rolling initial product to have 90 to 180 teeth, and then performing heat treatment and surface treatment |
| 08/11/2004 | EP1445342A1 Austenitic stainless steel and manufacturing method thereof |
| 08/11/2004 | EP1445340A2 Method for producing monocrystalline metallic wire |
| 08/11/2004 | EP1444374A1 High-strength thin steel sheet drawable and excellent in shape fixation property and method of producing the same |
| 08/11/2004 | EP1444373A1 STEEL PLATE HAVING SUPERIOR TOUGHNESS IN WELD HEAT−AFFECTED ZONE AND METHOD FOR MANUFACTURING THE SAME, WELDING FABRIC USING THE SAME |
| 08/11/2004 | EP1444372A1 Method for the production of magnetic sheet with non-oriented granularity |
| 08/11/2004 | EP1444371A1 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 |
| 08/11/2004 | EP1418245A9 Long-life heat-resisting low alloy steel welded component and method of manufacturing the same |
| 08/11/2004 | CN1520464A Nonoriented electromagnetic steel sheet |
| 08/11/2004 | CN1519388A Austenitic stainless steels and its mfg. method |
| 08/11/2004 | CN1519386A Cooled and tempered bainite steel part and its mfg. process |
| 08/11/2004 | CN1519383A Technical method of controlling low carbon steel in superfine structure |
| 08/11/2004 | CN1161434C Inorganic/organic insulating coating for nonoriented electrical steel |
| 08/10/2004 | US6773803 Far-infrared emission powder with antibacterial activity and bio-wave steel plate coated with resin containing same |
| 08/10/2004 | US6773522 Process and device for producing a high-strength steel strip |
| 08/10/2004 | US6773518 Cold rolled steel sheet having excellent corrosion resistance to sulfuric acid |
| 08/10/2004 | US6773514 Method for producing non-grain oriented electric sheet steel |