| Patents for C21D 6 - Heat treatment of ferrous alloys (4,815) |
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| 03/07/2001 | EP1081245A1 Heat resistant Cr-Mo alloy steel |
| 03/01/2001 | WO2001014601A1 Method for the manufacture of steel products of a precipitation hardened martensitic steel, steel products obtained with such method and use of said steel products |
| 03/01/2001 | WO2001014600A1 Semifinished and finished products made of austenitic special steel and method for the production thereof |
| 02/27/2001 | US6193469 High toughness heat-resistant steel, turbine rotor and method of producing the same |
| 02/27/2001 | CA2037908C Process for producing high strength stainless steel of duplex structure having excellent spring limit value |
| 02/21/2001 | CN1285005A Austenitic stainless steel including columbium |
| 02/20/2001 | US6190472 Method of soft annealing high carbon steel |
| 02/20/2001 | US6190465 Soft magnetic alloy of the Fe-Ni-Cr-Ti type for a magnetic circuit of a high-sensitivity relay |
| 02/20/2001 | US6190463 Heating to convert the metallographic structure thereof into a gamma single-phase structure, a second step of gradually cooling the material to an a single-phase range and a third step comprising a magnetic softening treatment. |
| 02/15/2001 | WO2001011096A1 Improved bainitic steel |
| 02/15/2001 | WO2000070107B1 Steel for heat-resistant and/or high-tensile formed parts |
| 02/13/2001 | US6187459 As support member such as a sleeve in electromagnetic valves |
| 02/13/2001 | US6187112 Metallic glass alloys for mechanically resonant marker surveillance systems |
| 02/13/2001 | CA2236930C Stainless steel surface claddings of continuous caster rolls |
| 02/07/2001 | CN1061700C High-strength ferritic heat-resistant steel and process for producing the same |
| 02/01/2001 | WO2001007667A1 Method of improving the toughness of low-carbon, high-strength steels |
| 01/31/2001 | CN1282381A Ultra-high strength steels with excellent cryogenic temp. toughness |
| 01/31/2001 | CN1282380A Ultra-high strength Ausaged steels with excellent cryogenic temp. toughness |
| 01/24/2001 | EP1070760A2 High bearing pressure-resistant member and production process therefor |
| 01/23/2001 | US6176946 Martensite matrix with a gradient carbide phase of chromium, molybdenum and vanadium; primary carbide inhibition, compressive strength, gears |
| 01/18/2001 | WO2001004365A1 Low-carbon steels of superior mechanical and corrosion properties |
| 01/17/2001 | EP1069202A1 A paramagnetic, corrosion resistant austenitic steel with high elasticity, strength and toughness and a process for its manufacture |
| 01/17/2001 | EP1069200A1 Iron-based magnetic shape memory alloy and method of preparing the same |
| 01/17/2001 | EP1068368A1 Stainless steel |
| 01/17/2001 | EP1068367A1 Cold work steel |
| 01/17/2001 | EP1068366A1 Steel material and method for its manufacturing |
| 01/17/2001 | EP0824755B1 High strength iron-cobalt-vanadium alloy article |
| 01/17/2001 | CN1060814C Producing method for dual phase steel plate having good tonghness and welding proparty |
| 01/16/2001 | US6174384 Medium-carbon steel having dispersed fine graphite structure and method for the manufacture thereof |
| 01/04/2001 | WO2001000895A1 Iron-cobalt alloy with a low coercitive field intensity and method for the production of semi-finished products made of an iron-cobalt alloy |
| 01/04/2001 | DE19928764A1 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 |
| 01/03/2001 | EP1064660A1 Amorphous alloy with increased operating induction |
| 12/28/2000 | WO2000079015A1 Powder metallurgy manufactured high speed steel |
| 12/28/2000 | WO2000052965A3 A method of heating metal strip and apparatus therefor |
| 12/27/2000 | EP1063304A1 Masking device for a colour flat screen cathode ray tube comprising a supporting frame for planar mask and planar mask |
| 12/27/2000 | CN1278105A Shadow mask used for plane color cathode-rays tube |
| 12/26/2000 | US6164079 Cryogenic treatment of silicon nitride tool and machine parts |
| 12/22/2000 | CA2312415A1 Masking device for a flat-screen colour display tube of the type including a tensioned shadow mask support frame and tensioned shadow mask |
| 12/20/2000 | EP1061151A1 Ferritic-austenitic two-phase stainless steel |
| 12/20/2000 | EP1061140A1 Composite magnetic member, process for producing the member and electromagnetic valve using the member |
| 12/19/2000 | US6162275 Forming, cutting tools |
| 12/12/2000 | US6159311 Strength and toughness; suitable for use as a material for drilling oil wells or natural gas wells, and constructing various plants and buildings |
| 12/12/2000 | US6159305 Patterning sheet of silicon steel to form a rotor lamination having slots; annealing the rotor lamination |
| 12/12/2000 | CA2068199C Niobium carbide strengthened steel for porcelain enameling |
| 12/07/2000 | WO2000073525A1 Aperture grill material for color picture tube, production method therefor, aperture grill and color picture tube |
| 12/07/2000 | WO2000072995A1 Casting slab for shadow mask, method for heat treatment therof and material for shadow mask |
| 11/30/2000 | WO2000071771A1 Free-machining steels containing tin, antimony, and/or arsenic |
| 11/30/2000 | WO2000071759A2 Methods of forming steel |
| 11/30/2000 | CA2373758A1 Free-machining steels containing tin, antimony, and/or arsenic |
| 11/29/2000 | EP1055011A1 Austenitic stainless steel including columbium |
| 11/29/2000 | EP1040208A4 Tin-bearing free-machining steel |
| 11/23/2000 | WO2000070107A1 Steel for heat-resistant and/or high-tensile formed parts |
| 11/22/2000 | CN1058758C Surface carburization method for forming austenite having high strength in rustless steel |
| 11/21/2000 | US6149743 Method of complete bainite hardening |
| 11/21/2000 | US6149736 Rare earth element and transistion elements with spherical voids |
| 11/21/2000 | US6149734 Carburization hardening of steels, quenching |
| 11/21/2000 | CA2217309C Method of manufacturing hot-worked elongated products, in particular bar or pipe, from high-alloy or hypereutectoid steel |
| 11/21/2000 | CA2062836C Method of annealing/magnetic annealing amorphous metal in a fluidized bed and apparatus therefor |
| 11/16/2000 | WO2000068449A1 Stainless steel plate for shadow mask and method for production thereof and shadow mask |
| 11/15/2000 | EP1052304A1 Martensitic corrosion resistant chromium steel |
| 11/15/2000 | EP1051530A1 Advanced case carburizing secondary hardening steels |
| 11/14/2000 | US6146475 Free-machining martensitic stainless steel |
| 11/14/2000 | US6146472 Method of making case-carburized steel components with improved core toughness |
| 11/14/2000 | US6146033 Ultra high tensile, yield and fatigue strengths; particularly suited for use as a hammerspring in hammerbanks in impact printers and for other applications where magnetic alloys are used and high mechanical strength is desirable |
| 11/09/2000 | DE19921286A1 Wärmebehandlungsverfahren zur Herstellung randschichtgehärteter Lang- nd Flachprodukte aus unlegierten oder niedriglegierten Stählen Heat treatment process for the production boundary layer hardened long nd flat products of non-alloy or low-alloy steels |
| 11/08/2000 | EP1050591A2 Thermal treatment process for manufacturing surface hardened unalloyed or low alloyed, elongated or flat steel products |
| 11/07/2000 | US6141974 Cryogenic and heat process for treating sintered carbide metals to increase service life |
| 11/02/2000 | WO2000065120A1 Free-machining austenitic stainless steel |
| 11/02/2000 | EP1047804A1 Free-machining martensitic stainless steel |
| 11/02/2000 | EP1047799A1 Ultra-high strength steels with excellent cryogenic temperature toughness |
| 11/02/2000 | EP1047798A1 Ultra-high strength ausaged steels with excellent cryogenic temperature toughness |
| 10/24/2000 | US6136110 Ferritic heat-resistant steel having excellent high temperature strength and process for producing the same |
| 10/24/2000 | US6136109 Forming a pipe from a steel comprising specific weight percent of carbon, silicon, manganese, copper, nickel, nitrogen and high percentage of chromium, balance iron, austenizing, quenching, heat treating, cooling, annealing |
| 10/24/2000 | US6136102 Maraging steel |
| 10/24/2000 | US6136099 Rare earth-iron series permanent magnets and method of preparation |
| 10/17/2000 | US6132525 Manufacturing of materials and workpieces for components in nuclear plant applications |
| 10/12/2000 | DE10012350A1 Ball or roller bearing includes a fixed race made of steel with high attrition and flaking resistance containing defined amounts of carbon, chromium and nitrogen |
| 10/11/2000 | EP1043417A1 Exhaust equipment member and production method |
| 10/11/2000 | EP1042516A1 Cold drawn wire and method for the manufacturing of such wire |
| 10/11/2000 | CN1269840A Pitting resistant duplex stainless steel alloy with improved mechinability |
| 10/10/2000 | US6129795 Metallurgical method for processing nickel- and iron-based superalloys |
| 10/04/2000 | EP1040458A1 Multi-thread re-entrant marker with transverse-anisotropy flux concentrators |
| 10/04/2000 | EP1040305A1 Process components, containers, and pipes suitable for containing and transporting cryogenic temperature fluids |
| 10/04/2000 | EP1040208A1 Tin-bearing free-machining steel |
| 10/04/2000 | CN1268914A Cutting moud and its mfg. method |
| 09/27/2000 | EP1038979A1 Cast steel material for pressure vessels and method of making a pressure vessel by using same |
| 09/20/2000 | EP1036853A1 Stainless steel for engine gasket and production method therefor |
| 09/20/2000 | EP0722509B1 Precipitation hardened ferrous alloy with quasicrystalline precipitates |
| 09/14/2000 | WO2000053821A1 An enhanced machinability precipitation-hardenable stainless steel for critical applications |
| 09/14/2000 | CA2362123A1 An enhanced machinability precipitation-hardenable stainless steel for critical applications |
| 09/13/2000 | EP0877825B1 Method of preparing a magnetic article from a duplex ferromagnetic alloy |
| 09/13/2000 | EP0731883B1 Method of treating brake pads |
| 09/08/2000 | WO2000052965A2 A method of heating metal strip and apparatus therefor |
| 09/08/2000 | CA2361567A1 A method of heating metal strip and apparatus therefor |
| 09/07/2000 | DE10010383A1 Maraging steel, useful for continuously variable transmissions, is produced by gas nitriding an aged maraging steel sheet in an ammonia-containing gas to restrict its carbon content |
| 09/06/2000 | CN1265708A Method for producing ultra-high strength, weldable steels with superior toughness |
| 09/06/2000 | CN1265427A Globurizing method of hypoutectoid low alloyed steel |
| 08/30/2000 | EP1031631A2 A method of spheroidizing annealing of hypo-eutectoid low alloy steel |
| 08/30/2000 | EP0896638B1 Pulp refiner plate of stainless steel |
| 08/22/2000 | US6106639 High tensile strength |