| Patents for C21D 6 - Heat treatment of ferrous alloys (4,815) |
|---|
| 10/14/2004 | US20040200552 High speed tool steel and its manufacturing method |
| 10/13/2004 | CN1537176A Cold work steel |
| 10/06/2004 | EP1274872B1 Method for the production of nitrogen alloyed steel, spray compacted steel |
| 10/05/2004 | US6800152 Iron-carbon-chromium with primary carbides of vanadium, niobium, titanium without eutectic carbides of v, nb, and ti. eutectic chromium carbides are formed without primary chromium carbides. proeutectic austenite is also formed in the alloy |
| 10/05/2004 | US6800143 Supermagnetostrictive alloy and method of preparation thereof |
| 09/29/2004 | EP1461467A1 Triple-phase nano-composite steels |
| 09/29/2004 | EP1404884A4 Improved metal frame for electronic hardware and flat panel displays |
| 09/29/2004 | EP1159462B1 An enhanced machinability precipitation-hardenable stainless steel for critical applications |
| 09/28/2004 | US6797085 Improving thermal conductivity by expanding microstructure; heat induction of secondary recrystallization grain growth, lowering to cryogenic temperature and immediately bringing to ambient conditions |
| 09/23/2004 | WO2004081954A1 R-t-b sintered magnet and process for producing the same |
| 09/21/2004 | US6793745 Maraging type spring steel |
| 09/21/2004 | US6793742 Preparing an alloy for bonded sm2co17 base magnets |
| 09/16/2004 | DE10010383B4 Verfahren zur Herstellung von Maraging-Stahl A process for producing maraging steel |
| 09/15/2004 | EP1456709A1 Spectacle frame |
| 09/15/2004 | EP1456431A1 Grain refinement of alloys using magnetic field processing |
| 09/15/2004 | CN1166805C High strengt austenic stainless steel belt with excellent straightness and its making process |
| 09/09/2004 | US20040175284 pre-treating tungsten carbide with microwave sintering; lowering the temperature gradually to cryogenic levels; raising the temperature of the microwave sintered tungsten carbide gradually back to ambient temperatures |
| 09/09/2004 | US20040173288 Coated, stainless steels with surface that is static free for wear resistant layers |
| 09/08/2004 | EP1455015A1 Bimetal railway switch |
| 09/08/2004 | EP1051530A4 Advanced case carburizing secondary hardening steels |
| 09/02/2004 | WO2004061145B1 Cr-w-v bainitic/ferritic steel compositions |
| 09/01/2004 | EP1452617A1 Methods of forming steel |
| 09/01/2004 | EP1452616A1 Ferritic stainless steel sheet excellent in press formability and workability and method for production thereof |
| 09/01/2004 | CN1526030A Metal frame for electronic hardware and flat panel displays |
| 08/31/2004 | US6783871 Heating stainless steel sheets in vacuum furnace; cooling under load |
| 08/31/2004 | US6783727 Austenitic steel |
| 08/26/2004 | US20040166015 containing 13% by weight or more of chromium, and containing precipitates of intermetallic compounds; excellent long-term creep strength at high temperatures and improved oxidation resistance |
| 08/26/2004 | US20040163740 Flash plate pretreatment; applying organic coating to ferrous-alloy aircraft and curing; corrosion resistance |
| 08/26/2004 | US20040163738 Chromium steel alloys and articles made thereof |
| 08/19/2004 | US20040162680 Method and device for determining wheel force |
| 08/18/2004 | EP1446512A1 Martensitic stainless steel and method for manufacturing same |
| 08/18/2004 | EP1446509A1 Duplex stainless steels |
| 08/11/2004 | EP1445339A1 Alloy and article with high heat resistance and high heat stability |
| 08/10/2004 | US6773662 .451-.598% carbon, .11-.29% silicon, .11-.39% manganese, 4.21-4.98% chromium, 2.81-3.29% molybdenum, .41-.69% vanadium and a balance of iron |
| 08/04/2004 | CN1518608A Ferritic stainless steel and martensitic stainless steel both being excellent in machinability |
| 08/03/2004 | US6771490 Bulk-forming amorphous alloys or bulk-forming amorphous alloy-composites |
| 08/03/2004 | CA2269041C Magnetostrictive element for use in a magnetomechanical surveillance system |
| 07/29/2004 | WO2004063400A1 Surface modified precipitation hardened stainless steel |
| 07/29/2004 | US20040144453 Heat-treatment to increase malleability, stamping out, machining, then age hardening to precipitation to improve mechanical properties |
| 07/29/2004 | DE10237446B4 Verwendung eines Chrom-Stahls und dessen Herstellung Use of a chromium steel and its manufacturing |
| 07/28/2004 | CN1159462C Isothermal process for lumpy nanometer Fe-N alloys |
| 07/27/2004 | US6767414 Carbon, silicon, oxygen, manganese, phosphorus, sulfur, nickel, molybdenum, cobalt, titanium, aluminum, nitrogen, oxygen, and the balance iron |
| 07/27/2004 | CA2316970C Ultra-high strength ausaged steels with excellent cryogenic temperature toughness |
| 07/22/2004 | WO2004061145A1 Cr-w-v bainitic/ferritic steel compositions |
| 07/22/2004 | WO2004013367A3 Plasma-nitriding of maraging steel, shaver cap for an electric shaver, cutting device made out of such steel and an electric shaver |
| 07/21/2004 | CN1158395C RE magnetic material crystallizing process |
| 07/20/2004 | US6764560 Method of forming cast alloys having high strength and plasticity |
| 07/20/2004 | US6764557 Hardening by subjecting to heat treatment at above 900 degrees celsius in reducing atmosphere |
| 07/20/2004 | US6764555 High-strength austenitic stainless steel strip having excellent flatness and method of manufacturing same |
| 07/15/2004 | US20040134568 comprising carbon, nitrogen, silicon, manganese, chromium, molybdenum, tungsten, vanadium, niobium, sulfur, iron; microstructure which in hardened and tempered condition contains 6-13 vol% vanadium-rich carbides, nitrides, carbonitrides; tools |
| 07/14/2004 | EP1437190A2 Use of a chrome steel alloy |
| 07/14/2004 | EP1436440A1 Ferritic stainless steel and use thereof in the manufacture for high temperature resistant products |
| 07/14/2004 | CN1513061A Method for producing stainless steel having improved corrosion resistance |
| 07/14/2004 | CN1511969A Alloy tool steel and its producing method and mold using it |
| 07/14/2004 | CN1157749C Shadow mask used for plane color cathode-rays tube and its producing method |
| 07/08/2004 | WO2004038055A9 Alloy containing rare earth element, production method thereof, magnetostrictive device, and magnetic refrigerant material |
| 07/08/2004 | DE10257967A1 Use of a chromium steel alloy containing alloying additions of silicon, manganese, molybdenum, chromium, nickel, tungsten, vanadium, niobium, copper, aluminum and cobalt as a material for objects resistant to water embrittlement |
| 06/30/2004 | EP1432841A2 Method for heat-treating work pieces made of temperature-resistant steels |
| 06/30/2004 | CN1509340A Method of producing high cr-based seamless steel pipe |
| 06/29/2004 | US6755920 Low-alloy heat-resistant steel, heat treatment method therefor, and turbine rotor comprising the same |
| 06/24/2004 | US20040118490 High strength, high toughness austenitic steel is obtained by heating to austenitizing temperature, cooling; transformation microstructure, metal working |
| 06/23/2004 | EP1358359B1 Steel and method for producing an intermediate product |
| 06/23/2004 | EP1017862A4 Method for producing ultra-high strength, weldable steels with superior toughness |
| 06/23/2004 | EP0964072B1 Austenitic stainless steel with resistance to deterioration by neutron irradiation |
| 06/17/2004 | US20040112473 Heat-treated steel wire for high strength spring |
| 06/17/2004 | DE10255590A1 Verfahren zum kleberfreien Glühen von Metallteilen A method for adhesive-free annealing of metal parts |
| 06/16/2004 | EP1427866A1 Method for making rolled and welded tubes comprising a final drawing or hydroforming step and resulting rolled tube |
| 06/16/2004 | EP1299569B1 Ferritic stainless steel for ferromagnetic parts |
| 06/16/2004 | CN1505691A A cast shaped article made from high strenght, precipiation-hardenable stainless steel and a process for making same |
| 06/16/2004 | CN1154124C Anisotropic magnetic powder and its production method |
| 06/15/2004 | US6749701 Method of inhibiting cold-rolled steel sheet edge cracking, and method of producing the steel sheet |
| 06/15/2004 | US6749695 Heat-treated to induce low magnetic loss; up to 20% fe may be replaced by co, and up to 3% by ni, mn, v, ti or mo; the balance comprising b, si or c |
| 06/10/2004 | WO2004048634A1 Method for the production of dual phase sheet steel |
| 06/10/2004 | CA2506571A1 Method for the production of dual phase sheet steel |
| 06/09/2004 | EP1426259A1 Method and device for determining wheel force |
| 06/09/2004 | EP1337453B1 Endless yarn tensioning strip and method for producing the same |
| 06/09/2004 | EP0828862B2 Martensitic stainless steel having high mechanical strength and corrosion resistance and relative manufactured articles |
| 06/09/2004 | CN1503852A Reinforced durable tool steel method for the production thereof method for producing parts made of said steel and parts thus obtained |
| 06/09/2004 | CN1153228C Amorphous alloy with increased operating induction |
| 06/09/2004 | CN1152973C Stainless steel of brake disk |
| 06/08/2004 | US6746548 Triple-phase nano-composite steels |
| 06/03/2004 | WO2002070769A8 Steel article |
| 06/03/2004 | US20040105776 Thixocast Fe-based alloy material and process for heating the same |
| 06/02/2004 | EP1424402A1 Process for avoiding the adhesion of metal parts during annealing |
| 06/02/2004 | EP1423219A1 A method for manufacturing an ultra-high-tensile, expanded metal of steel |
| 06/01/2004 | US6743305 Martensite stainless steels; tensile strength, toughness |
| 06/01/2004 | US6742374 Method for partly reinforcing a workpiece |
| 05/27/2004 | US20040099349 Heat treatment of alloys to form microstructure martensite and ferritic stainless steels, having tensile strength |
| 05/20/2004 | US20040096351 Cu-enriched particles with concentration of C not less than 0.1 mass % or concentration of Sn and/or In not less than 10 mass % are dispersed at a ratio of 0.2 vol. % or more in a ferritic matrix. |
| 05/20/2004 | US20040094239 Having excellent wear resistance, good corrosion resistance, hardenability, and tempering resistance as well as adequate toughness |
| 05/19/2004 | EP1420077A1 Inert material with high hardness for elements used at high temperature |
| 05/19/2004 | EP1419281A2 Method for increasing the dynamic stability under load of a toothed structural component |
| 05/19/2004 | EP0907957B1 Metallic glass alloys for mechanically resonant marker surveillance systems |
| 05/19/2004 | CN1497058A Stainless steelused for brake disk of disk type brake |
| 05/13/2004 | WO2004040031A1 METHOD FOR PRODUCING OXIDATION-RESISTANT HIGH Cr FERRITIC HEAT RESISTANT STEEL |
| 05/11/2004 | US6733723 Method for producing sintered metal and a rotary compressor flange produced by use of the method |
| 05/06/2004 | WO2004038055A1 Alloy containing rare earth element, production method thereof, magnetostrictive device, and magnetic refrigerant material |
| 05/06/2004 | US20040084116 Ferritic stainless steel sheet having good workability and manufacturing method thereof |
| 04/29/2004 | WO2003066925A3 Fe-based amorphous metal alloy having a linear bh loop |
| 04/29/2004 | US20040079448 Spall propagation properties of case-hardened M50 and M50NiL bearings |