| Patents for C21D 6 - Heat treatment of ferrous alloys (4,815) |
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| 07/31/2002 | EP0789785B1 Ferritic heat-resistant steel having excellent high temperature strength and process for producing the same |
| 07/31/2002 | CN1361294A RE magnetic material crystallizing process |
| 07/31/2002 | CN1088474C Method for producing ultra-high strength, weldable steels with superiortoughness |
| 07/24/2002 | CN1360640A Low-carbon steels of superior mechanical and corrosion properties |
| 07/23/2002 | US6423160 Coefficient of thermal expansion smaller than that of low carbon steel, less expensive than other alloys |
| 07/23/2002 | US6423155 High strength metal alloys with high magnetic saturation induction and method |
| 07/23/2002 | CA2062704C Soft magnetic alloy material |
| 07/17/2002 | EP1222317A1 Machinable high strength stainless steel |
| 07/16/2002 | US6420054 Masking device for a color cathode-ray display tube with a flat screen, of the type comprising a support frame for a tensioned shadowmask, and tensioned shadowmask |
| 07/16/2002 | US6419759 Rare earth element-iron alloy |
| 07/10/2002 | CN1357646A High strenght austenic stainless steel belt with excellent straightness and its making process |
| 07/10/2002 | CN1087358C High hardness powder metallurgy high-speed steel article |
| 07/03/2002 | EP1219719A1 A ferritic stainless steel sheet good of workability and a manufacturing method thereof |
| 07/03/2002 | EP1218552A1 Low-carbon steels of superior mechanical and corrosion properties |
| 07/03/2002 | EP1068368B1 Stainless steel |
| 06/27/2002 | US20020081161 High-speed tool steel gear cutting tool and manufacturing method therefor |
| 06/26/2002 | EP1217087A1 Iron-cobalt alloy with a low coercitive field intensity and method for the production of semi-finished products made of an iron-cobalt alloy |
| 06/26/2002 | EP1216311A1 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 |
| 06/26/2002 | CN1355855A Powder metallurgy manufactured high speed steel |
| 06/26/2002 | CN1086632C Method for making readjusting casting rolls |
| 06/25/2002 | US6409846 Fixed race of steel comprising carbon, chromium, nitrogen, molybdenum, vanadium, and iron; hydrogen adsorbers; high density passive films |
| 06/25/2002 | US6408632 Freezer and plant gas system |
| 06/20/2002 | US20020074066 After the entire component has been solution annealed and tempered in a high temperature range, the edge layer is solution annealed by the effect of short-time energy impact, then entire component is annealed at lower temp than previous |
| 06/19/2002 | EP1215299A2 Phase transformation controlled and nitride precipitation hardened heat treated steel |
| 06/19/2002 | EP1215298A2 A high-strength austenitic stainless steel strip excellent in flatness of shape and its manufacturing method |
| 06/19/2002 | EP1215290A2 Heat treated stainless steel hydraulic components and method for making same |
| 06/19/2002 | EP1214720A1 BORON-LOW Nd-Fe-B ALLOY AND METHOD FOR PRODUCING PERMANENT MAGNETS ON THE BASIS OF SAID ALLOY |
| 06/19/2002 | CN1354272A Stainless steel for brake disk |
| 06/13/2002 | US20020069944 High performance nanostructured materials and methods of making the same |
| 06/13/2002 | US20020069938 Formed member made of steel sheet and method for producing same |
| 06/12/2002 | EP1213363A1 Method for making wear-resistant surface layers on precipitation hardenable materials |
| 06/12/2002 | CN1353773A Aperture grill material for color picture tube, production method therefor, aperture grill and color picture tube |
| 06/11/2002 | US6402863 Heat treatment for 9Ni-4Co-0.30C type steels |
| 06/06/2002 | US20020068007 Nickel 30-85 wt %, carbon < 0.015 wt %, Silicon < 1.0 wt %, Manganese < 1.0 wt %, phosphorus < 0.01 wt %, sulfur < 0.005 wt %, oxygen < 0.0060 wt %, aluminum < 0.02 wt % remainder iron; casting, homogenizing heat treatment and hot rolling |
| 06/06/2002 | US20020066627 Stainless steel for a disc brake rotor |
| 06/05/2002 | EP1211331A1 A Fe-Cr soft magnetic material and a method of manufacturing thereof |
| 06/05/2002 | EP1211330A1 Aperture grill material for color picture tube, production method therefor, aperture grill and color picture tube |
| 05/29/2002 | CN1351527A Casting slab for shadow mask, method for heat treatment therof and material for shadow mask |
| 05/23/2002 | WO2002040722A1 Method for making a strip or a workpiece cut out from a cold rolled maraging steel strip |
| 05/23/2002 | US20020059967 Maraging steel and process for manufacturing a strip or a part cut out of a strip of cold-rolled maraging steel |
| 05/23/2002 | DE10055275A1 Mill annealed process to manufacture stainless steel yarn brake as a truncated cone |
| 05/22/2002 | EP1207213A1 High tensile cold-rolled steel sheet excellent in ductility and in strain aging hardening properties, and method for producing the same |
| 05/22/2002 | EP1040458A4 Multi-thread re-entrant marker with transverse-anisotropy flux concentrators |
| 05/21/2002 | US6390443 Composite magnetic member, process for producing the member and electromagnetic valve using the member |
| 05/21/2002 | CA2249964C Martensitic stainless steel pipe and method for manufacturing the same |
| 05/16/2002 | WO2002038477A1 Endless yarn tensioning strip and method for producing the same |
| 05/16/2002 | DE10054765A1 Heat treatment furnace used for heat treating steel comprises a housing containing a heating chamber with a treatment chamber having a deep cooling system |
| 05/15/2002 | EP1205269A1 Casting slab for shadow mask, method for heat treatment therof and material for shadow mask |
| 05/15/2002 | EP1204771A1 Semifinished and finished products made of austenitic special steel and method for the production thereof |
| 05/15/2002 | CN1084796C Austenitic stainless steel with resistance to deterioration by neutron irradiation |
| 05/15/2002 | CN1084794C Pitting resistant duplex stainless steel alloy with improved mechinability |
| 05/14/2002 | US6386342 Stainless steel for a disc brake rotor |
| 05/10/2002 | WO2002036835A1 Heat-treatment furnace having a deep-cooling system |
| 05/08/2002 | EP1203831A2 Thermal fatigue resistant stainless steel articles |
| 05/08/2002 | EP1017863B1 Methods for producing constituent members made of ageing-sensitive steel and coated with baking enamel |
| 05/07/2002 | US6383316 Precipitated hardening stainless steel |
| 05/07/2002 | US6383310 Exhaust equipment member, internal combustion engine system using same, and method for producing such exhaust equipment member |
| 05/07/2002 | US6383309 Ferritic stainless steel plate |
| 05/03/2002 | CA2361180A1 Thermal fatigue resistant stainless steel articles |
| 05/02/2002 | WO2002034958A1 Iron-manganese-silicon-based shape memory alloys containing chromium and nitrogen |
| 05/02/2002 | EP1201776A2 High speed tool steel gear cutting tool and manufacturing method thereof |
| 05/02/2002 | EP1200638A1 Improved bainitic steel |
| 05/02/2002 | EP1200637A1 Powder metallurgy manufactured high speed steel |
| 05/01/2002 | CN1346899A Fe-Ni permalloy, method for mfg same and casting brank |
| 05/01/2002 | CN1083894C Process for mfg. strip made of alloy of iron-nickel type from continuously cast thin strip |
| 04/30/2002 | US6379475 Tools for dies, punches, stamping cores, steels, carburizing, nitriding and induction hardening |
| 04/24/2002 | EP1199374A1 A novel stainless steel for a disc brake rotor |
| 04/24/2002 | EP1198605A2 Methods of forming steel |
| 04/24/2002 | EP1198603A1 Free-machining steels containing tin, antimony, and/or arsenic |
| 04/24/2002 | EP1097248B1 Case hardened steel with high tempering temperature, method for obtaining same and parts formed with said steel |
| 04/23/2002 | US6374932 Heat management drilling system and method |
| 04/18/2002 | WO2002001127A3 Freezer and plant gas system |
| 04/17/2002 | EP1197569A1 Fe-Ni permalloy and method of producing the same |
| 04/11/2002 | WO2002029832A1 Annealed amorphous alloys for magneto-acoustic markers |
| 04/11/2002 | WO2002029128A1 High performance nanostructured materials and methods of making the same |
| 04/11/2002 | WO2002010599A3 High speed angular contact ball bearing |
| 04/11/2002 | US20020040905 Durability and film-forming properties |
| 04/04/2002 | DE10045705A1 Magnetkern für einen Transduktorregler und Verwendung von Transduktorreglern sowie Verfahren zur Herstellung von Magnetkernen für Transduktorregler Magnet core for a transductor and use of transductor and to processes for manufacture of magnetic cores for transductor |
| 04/02/2002 | CA2072089C Amorphous fe-b-si alloys exhibiting enhanced ac magnetic properties and handleability |
| 03/27/2002 | EP1191116A1 Austenic steel |
| 03/27/2002 | CN1081682C Heat treatment of sulfuric acid resistant stainless steel |
| 03/21/2002 | WO2002023560A1 Half-cycle transductor with a magnetic core, use of half-cycle transductors and method for producing magnetic cores for half-cycle transductors |
| 03/21/2002 | WO2002022908A2 Process of treating stainless steel |
| 03/21/2002 | WO2002022905A2 Stainless steel and stainless steel surface |
| 03/21/2002 | US20020033210 High chromium ferritic heat resisting steel and method of heat treatment for the same |
| 03/20/2002 | CN1081236C Method for batch annealing of austenitio stainless steels |
| 03/19/2002 | US6359563 ‘Magneto-acoustic marker for electronic article surveillance having reduced size and high signal amplitude’ |
| 03/19/2002 | US6358336 Heat resistance Cr-Mo alloy steel |
| 03/14/2002 | US20020029825 Advanced case carburizing secondary hardening steels |
| 03/13/2002 | CN1340181A Magneto-acoustic marker for electronic article surveillance having reduced size and high signal amplitude |
| 03/12/2002 | US6355119 Heat treatment method for producing boundary-layer hardened long products and flat products of unalloyed or low-alloy steel |
| 03/07/2002 | US20020026970 Toughness and is for use as a steel material for the construction of large industrial machines, ships, marine structures, line pipes, tanks, bridges and like welded structures |
| 03/06/2002 | EP0912270B1 Method for producing axially symmetric parts |
| 03/06/2002 | EP0812365B1 Methods for annealing high manganic cold rolled steel sheet |
| 02/27/2002 | CN1079841C Martensitic stainless steel having high mechanical strength and corrosion resistance, related products and its production method of said products from said stainless stell |
| 02/27/2002 | CN1079840C Iron-nickel superalloy rotor for large-type gas turbine |
| 02/21/2002 | WO2002014758A1 Apparatus and method for strengthening articles of manufacture through cryogenic thermal cycling |
| 02/21/2002 | DE10124393A1 Hitzebeständiger Stahl, Verfahren zur thermischen Behandlung von hitzebeständigem Stahl, und Kompenten aus hitzebeständigem Stahl A heat-resistant steel, process for the thermal treatment of heat-resistant steel, heat-resistant steel and Kompenten from |
| 02/19/2002 | US6348111 Method for producing Fe—Ni alloy |
| 02/19/2002 | US6348109 Steel material and method for its manufacturing |