| Patents for C21D 6 - Heat treatment of ferrous alloys (4,815) |
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| 06/16/2009 | CA2444175C Reinforced durable tool steel, method for the production thereof, method for producing parts made of said steel, and parts thus obtained |
| 06/11/2009 | US20090145526 Low core loss grain-oriented electrical steel sheet and method for producing the same |
| 06/11/2009 | US20090145522 Soft magnetic iron-cobalt-based alloy and method for its production |
| 06/10/2009 | EP2066818A2 Frictionally press-bonded member |
| 06/04/2009 | US20090139616 Method and Device for the Continuous Creation of a Bainite Structure in a Carbon Steel, Particularly in a Strip Steel |
| 06/03/2009 | EP2065483A1 Hot-working tool steel having excellent stiffness and high-temperature strength and method for production thereof |
| 06/02/2009 | US7540993 Continuous process for production of steel part with regions of different ductility |
| 05/27/2009 | EP1668165B1 Processing for cast components |
| 05/27/2009 | EP1158065B1 High-strength, high-toughness stainless steel excellent in resistance to delayed fracture |
| 05/27/2009 | CN101443469A Austenitic stainless steel and process for removing hydrogentherefrom |
| 05/26/2009 | US7537727 Low to medium carbon content and high ductility steel composition with a relatively low nickel content; high performance characteristics; lower production costs; thermally processing comprising normalizing, austenitizing, oil quenching and tempering; weldable bomb casings |
| 05/22/2009 | WO2009063909A1 Method of heat-treating steel, process for producing machine part, and machine part |
| 05/20/2009 | EP2060650A1 Ferritic stainless steel material for automobile exhaust gas passage components |
| 05/20/2009 | CN101435058A Economical austenitic stainless steel and technique for producing the same |
| 05/20/2009 | CN101435054A Ferritic stainless steel material for automobile exhaust gas passage components |
| 05/20/2009 | CN101435013A Preparation technique of flat shovel teeth material |
| 05/14/2009 | WO2009060900A1 Stainless steel product for polymer electrolyte fuel cell separators and polymer electrolyte fuel cells |
| 05/14/2009 | US20090120536 Ferritic Stainless steel material for automobile exhaust gas passage components |
| 05/12/2009 | US7531052 Continuous processed groove, formed by thermal energy in a longitudinal direction on one side of the strip at a position at a predetermined distance from one edge; and a continuous changed structure area formed by thermal energy in a longitudinal direction on the opposite side of the strip |
| 05/07/2009 | WO2009057675A1 Powder for magnetic core, powder magnetic core, and their production methods |
| 05/07/2009 | WO2007132436A3 Process for the production of fine-grained carbon steel strips and strips thus obtainable |
| 05/07/2009 | US20090116991 NOVEL Fe-Al ALLOY AND METHOD FOR PRODUCING THE SAME |
| 05/06/2009 | EP2055798A1 Tool steel and manufacturing method thereof |
| 04/30/2009 | US20090110588 Stainless steel having a high hardness and excellent mirror-finished surface property, and method of producing the same |
| 04/30/2009 | CA2695472A1 Secondary-hardening gear steel |
| 04/29/2009 | EP2053683A1 Stainless steel member for fuel cell |
| 04/29/2009 | EP2053682A1 Coil spring for fuel cell |
| 04/29/2009 | CN201228274Y Constant thermal apparatus at low temperature |
| 04/29/2009 | CN101421425A Method of pretreatment for quenching of martensitic tool steel and method of quenching |
| 04/29/2009 | CN101418368A Heat treating process for eliminating mixed crystal of low-alloy quick-cutting steel |
| 04/28/2009 | CA2259518C Annealing magnetic elements for stable mechanical properties |
| 04/22/2009 | EP1473377B1 Magnetic base material, laminate from magnetic base material and method for production thereof |
| 04/22/2009 | CN101415846A Method and device adjusting targeted combinations of properties of polyphase steel |
| 04/16/2009 | WO2009048137A1 Duplex stainless steel wire material, steel wire, bolt, and method for production of the bolt |
| 04/15/2009 | EP2048257A1 Free-cutting stainless steel and process for producing the same |
| 04/15/2009 | CN101410537A Process for producing seamless two-phase stainless-steel pipe |
| 04/15/2009 | CN100478481C Martensitic stainless steel with excellent machinability |
| 04/15/2009 | CN100478459C Marmem capable of changing with temp., mfg. method thereof |
| 04/09/2009 | US20090090438 Method and apparatus for making high strength metals with a face-centered-cubic structure |
| 04/09/2009 | DE112007001311T5 Verfahren zur Herstellung eines Magnetpulvers und Verfahren zur Herstellung eines Pressmassekerns A method of manufacturing a magnetic powder and process for producing a molding compound core |
| 04/08/2009 | CN101405420A Deformable lightweight structural steel |
| 04/07/2009 | US7515395 Material of case for storage cell |
| 04/07/2009 | US7513960 Stainless steel having a high hardness and excellent mirror-finished surface property, and method of producing the same |
| 03/26/2009 | US20090081071 Rare earth permanent magnet alloy and producing method thereof |
| 03/26/2009 | US20090081068 Ultra-High Strength Stainless Steels |
| 03/25/2009 | EP1452616B1 Ferritic stainless steel sheet excellent in press formability and workability and method for production thereof |
| 03/25/2009 | CN101395291A Piston ring material for internal combustion engine |
| 03/25/2009 | CN100471982C Method for the production of dual phase sheet steel |
| 03/19/2009 | WO2009034970A1 Case-hardening steel being excellent in contact pressure fatigue strength, impact strength and bending fatigue strength |
| 03/18/2009 | CN101386954A Variable temperature martensite local strengthening austenite low manganese steel hammer head material and preparation process thereof |
| 03/18/2009 | CN100469937C Steel with high mechanical strength and wear resistance |
| 03/12/2009 | US20090065106 Ultra soft high carbon hot-rolled steel sheets and manufacturing method thereof |
| 03/11/2009 | EP1469954B2 Method for producing a hot rolled strip from austenitic rust-resistant steels |
| 03/11/2009 | CN100467624C Method for producing stainless steel having improved corrosion resistance |
| 03/04/2009 | CN100465319C A cast iron material, a sealing material and a manufacturing method thereof |
| 02/26/2009 | WO2009025314A1 High-strength low-alloy steel excellent in the resistance to high-pressure hydrogen environment embrittlement and process for manufacturing the steel |
| 02/26/2009 | US20090050244 Hot-Rolled High Strength Steel Sheet Having Excellent Ductility, Stretch-Flangeability, and Tensile Fatigue Properties and Method for Producing the Same |
| 02/26/2009 | US20090050243 High strength hot rolled steel sheet excellent in bore expanding workability and method for production thereof |
| 02/26/2009 | US20090050241 Steel superior in machinability and method of production of same |
| 02/12/2009 | US20090039994 Soft magnetic iron-cobalt-based alloy and process for manufacturing it |
| 02/12/2009 | US20090038715 Water-Cooling Method of Steel Material and Steel Material Obtained by That Water-Cooling Method |
| 02/11/2009 | EP1601809A4 Method for the production of dual phase sheet steel |
| 02/11/2009 | CN101365812A Method for producing a cold-rolled strip from stainless steel with a ferritic structure and a reduced susceptibility to ridging |
| 02/11/2009 | CN101364465A Permanent magnetic RE material and preparation thereof |
| 02/11/2009 | CN101363074A Conveyer belt type cryogenic treatment apparatus |
| 02/05/2009 | WO2009016815A1 R-Fe-B RARE EARTH SINTERED MAGNET |
| 01/22/2009 | US20090022617 Low-nickel austenitic stainless steel and method for producing same |
| 01/22/2009 | US20090020191 Post weld heat treatment for chemically stabilized austenitic stainless steel |
| 01/21/2009 | EP1557477B1 METHOD FOR PRODUCING OXIDATION-RESISTANT HIGH Cr FERRITIC HEAT RESISTANT STEEL |
| 01/21/2009 | CN201183810Y Ultra low temperature deep cold treatment apparatus |
| 01/21/2009 | CN101351571A Amorphous alloy thin-band, nanocrystalline soft magnetic alloy and magnetic core consisting of nanocrystalline soft magnetic alloy |
| 01/21/2009 | CN101350399A Material of case for storage cell |
| 01/21/2009 | CN101348849A Low residual austenite heat treatment method and apparatus thereof |
| 01/15/2009 | WO2009008281A1 Steel tube for fuel injection tube and process for producing the same |
| 01/15/2009 | WO2009007562A1 Hardened martensitic steel having a low or zero content of cobalt, process for manufacturing a part from this steel, and part thus obtained |
| 01/15/2009 | CA2694844A1 Hardened martensitic steel having a low or zero content of cobalt, process for manufacturing a part from this steel, and part thus obtained |
| 01/07/2009 | EP2011892A1 Piston ring material for internal combustion engine |
| 01/07/2009 | CN100449030C Fe-based amorphous metal alloy having a linear BH loop |
| 01/07/2009 | CN100449025C Material of case for storage cell |
| 01/01/2009 | US20090000703 Ferritic stainless steel sheet superior in shapeability and method of production of the same |
| 12/31/2008 | WO2009001792A1 Steel for mechanical structure excelling in machinability and process for producing the same |
| 12/31/2008 | EP1951519A4 High strength dual phase steel with low yield ratio, high toughness and superior weldability |
| 12/31/2008 | EP1275744B1 Heat-resistant martensite alloy excellent in high-temperature creep rapture strength and ductility and process for producing the same |
| 12/30/2008 | CA2389281C Method for fabricating vehicle components and new use of a precipitation hardenable martensitic stainless steel |
| 12/24/2008 | EP2006398A1 Process for producing steel material |
| 12/23/2008 | US7468109 High strength steel sheet having excellent stretch flangeability |
| 12/18/2008 | US20080308198 Austenitic Stainless Steel, Manufacturing Method for the Same, and Structure Using the Same |
| 12/17/2008 | EP2003216A1 Process for producing seamless two-phase stainless-steel pipe |
| 12/11/2008 | US20080302501 Steel for Hot Tooling, and Part Produced From Said Steel, Method for the Production Thereof, and Uses of the Same |
| 12/11/2008 | US20080302453 Shaped Steel Excellent in Fire Resistance and Producing Method Therefor |
| 12/10/2008 | CN101319295A High-strength hot rolled steel plate and manufacturing method thereof |
| 12/10/2008 | CN100441721C Ferritic cr-containing steel |
| 12/10/2008 | CN100441704C Continuous intensification method of 0Cr17Ni7A1 material after timing heat treatment |
| 12/04/2008 | WO2008145872A1 Low density steel with good stamping capability |
| 12/03/2008 | EP1997917A1 Method of metal surface hardening treatment inducing transformation |
| 12/03/2008 | EP1664356A4 Post weld heat treatment for chemically stabilized austenitic stainless steel |
| 12/03/2008 | CN101317238A Method for producing rare earth permanent magnet material |
| 12/03/2008 | CN101316674A Process for producing rare-earth permanent magnet material |
| 12/03/2008 | CN100439553C Plasma-nitriding of maraging steel, shaver cap for an electric shaver, cutting device made out of such steel and an electric shaver |
| 12/03/2008 | CN100439540C Steel material with excellent rolling fatigue life and method of producing the same |