| Patents for C21D 6 - Heat treatment of ferrous alloys (4,815) |
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| 12/24/2003 | CA2488793A1 Cold work steel and cold work tool |
| 12/23/2003 | CA2299430C Metallurgical method for processing nickel- and iron-based superalloys |
| 12/18/2003 | WO2003104497A1 Method and device for continuous annealing metallic ribbons |
| 12/17/2003 | EP1204771B1 Semifinished and finished products made of austenitic special steel and method for the production thereof |
| 12/17/2003 | CN1462318A High manganese deplex stainless steel having superior hot workabilities and method for manufacturing thereof |
| 12/16/2003 | US6663730 Maraging steel and process for manufacturing a strip or a part cut out of a strip of cold-rolled maraging steel |
| 12/16/2003 | CA2269038C Austenitic stainless steel with resistant to neutron-irradiation-induced deterioration |
| 12/11/2003 | WO2003009088A3 Improved metal frame for electronic hardware and flat panel displays |
| 12/11/2003 | US20030226622 Manufacturing method of auger |
| 12/11/2003 | US20030226618 Heat treatment in channel with transverse projection for heat contact |
| 12/10/2003 | EP1369941A2 Low-contact-resistance interface structure between separator and carbon material for fuel cell, separator and carbon material used therein, and production method |
| 12/10/2003 | CN1461354A Ferritic heat-resistant steel and method for production thereof |
| 12/04/2003 | WO2003027349A3 Method for heat-treating work pieces made of temperature-resistant steels |
| 12/04/2003 | US20030221754 Carbon steels of high performance are disclosed that contain a three-phase microstructure consisting of grains of ferrite fused with grains that contain dislocated lath structures in which laths of martensite alternate with thin films of |
| 12/03/2003 | EP1366204A1 Steel article |
| 12/02/2003 | US6656419 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 |
| 12/02/2003 | US6656418 Steel composition, method for making same and parts produced from said compositions, particularly valves |
| 11/27/2003 | US20030217789 High temperature; toughness |
| 11/27/2003 | US20030217786 Giant magnetostrictive material and heat treatment method for giant magnetostrictive material |
| 11/26/2003 | CN1128888C Ultra-high strength ausaged steels with excellent cryogenic temp. toughness |
| 11/19/2003 | CN1128244C Fe-Mn-Si base marmem containing Cr and N and its training method |
| 11/16/2003 | CA2427188A1 Low-contact-resistance interface structure between separator and carbon material for fuel cell, separator and carbon material used therein, and production method for stainless steel separator for fuel cell |
| 11/12/2003 | EP1361289A1 Heat-treated steel wire for high strength spring |
| 11/11/2003 | US6645324 Excellent ridging resistance and formability |
| 11/11/2003 | US6645314 Amorphous alloys for magneto-acoustic markers in electronic article surveillance having reduced, low or zero co-content and method of annealing the same |
| 11/06/2003 | US20030205304 High-speed tool steel gear cutting tool and manufacturing method therefor |
| 11/06/2003 | US20030205296 Fe-Ni based permalloy and method of producing the same and cast slab |
| 11/05/2003 | EP1358359A2 Steel and method for producing an intermediate product |
| 11/04/2003 | US6641780 A ferritic stainless steel having improved high temperature mechanical properties includes greater than 25 weight percent chromium, 0.75 up to 1.5 weight percent molybdenum, up to 0.05 weight percent carbon, and at least one of niobium, titanium |
| 11/04/2003 | US6641682 Method for manufacturing an aperture grill material for color picture tube |
| 11/04/2003 | US6640555 Freezer and plant gas system |
| 10/29/2003 | EP1357199A1 Precipitation-hardened soft magnetic ferritic stainless steel |
| 10/23/2003 | WO2003087415A1 Method for producing martensitic stainless steel |
| 10/23/2003 | WO2002001127A9 Freezer and plant gas system |
| 10/21/2003 | US6635126 Alloy comprising iron, carbon, cobalt, nickel, chromium, molybdenum, and vanadium; bearings, gears |
| 10/16/2003 | US20030192626 Precipitation-hardened soft magnetic ferritic stainless steels |
| 10/15/2003 | CN1124360C Steel |
| 10/14/2003 | US6632395 High-strength, austenitic, stainless steel, |
| 10/14/2003 | US6632298 Casting slab for shadow mask, method for heat treatment thereof and material for shadow mask |
| 10/09/2003 | US20030190251 High-strength micro-alloy steel and process for making same |
| 10/09/2003 | US20030189087 Direct bond of steel at low temperatures |
| 10/09/2003 | US20030188812 A unique metal structure in which fine metal carbonitride precipitates on the grain boundaries and in the grains of a martensite structure to improve the creep breaking strength at 650 degrees C.; boilers; turbines; nuclear energy |
| 10/07/2003 | US6630103 Ultra-high-strength precipitation-hardenable stainless steel and strip made therefrom |
| 10/02/2003 | US20030185700 0.25-0.35% by mass C, not more than 0.15% Si, 0.2-0.8% Mn, 0.3-0.6% Ni, 1.6-1.9% Cr, 0.26-0.35% V, 0.6-1.1% Mo, 0.6-1.4% W, 1.3-1.4% Mo+W/2, and the balance Fe |
| 09/23/2003 | US6623569 Weldable, greater corrosion resistance than the Type 304, Type 316 or Type 317 austenitic stainless steels and may have a lower production cost than the commonly used AL 2205; reduced amounts of the alloying elements nickel and molybdenum |
| 09/18/2003 | WO2003076676A2 Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steels |
| 09/18/2003 | WO2003076100A1 A method for manufacturing an ultra-high-tensile, stretch formed or stretch bent sheet metal product of steel |
| 09/17/2003 | EP1129230B1 New use of a stainless steel in seawater applications |
| 09/12/2003 | WO2003074742A1 A method for manufacturing an ultra-high-tensile pressure turned sheet metal product of steel |
| 09/10/2003 | EP1191116B1 Austenitic steel |
| 09/09/2003 | US6617050 Low density and high ductility alloy steel for a golf club head |
| 09/09/2003 | US6616777 Fe alloy material for thixocasting and method for heating the same |
| 09/04/2003 | US20030164211 Fe-ni or fe-ni-co or fe-ni-co-cu alloy strip with improved cuttability |
| 09/03/2003 | EP1339880A1 Method for making a strip or a workpiece cut out from a cold rolled maraging steel strip |
| 08/28/2003 | WO2003070992A1 Method of heat treatment of stainless steel. |
| 08/28/2003 | US20030160045 Apparatus and method for heating a workpiece of metal |
| 08/27/2003 | EP1338659A1 White powder removing device for continuous annealing furnace |
| 08/27/2003 | EP1337453A1 Endless yarn tensioning strip and method for producing the same |
| 08/21/2003 | WO2003069004A1 High chromium and carbide rich tool steel made by powder metallurgi and tool made of the steel |
| 08/21/2003 | US20030156965 Nitrogen alloyed steel, spray compacted steels, method for the production thereof and composite material produced from said steel |
| 08/21/2003 | US20030155039 Inducing phase transformation, from ferromagnetic to paramagnetic phase at low temperature; high strength steel construction materials for drilling |
| 08/20/2003 | CN1437657A Hardened Fe-Ni alloy for making integrated circuit grids and method for making same |
| 08/20/2003 | CN1118585C Aperture grille material for color picture tube, producing method thereof, aperture grille and colour picture tube |
| 08/19/2003 | US6608290 Method of heating metal strip and apparatus thereof |
| 08/14/2003 | WO2003066925A2 Fe-based amorphous metal alloy having a linear bh loop |
| 08/14/2003 | WO2003066924A1 Martensitic stainless steel and method for manufacturing the same |
| 08/14/2003 | US20030150528 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 |
| 08/13/2003 | CN1117649C Cutting mold mfg. method |
| 08/07/2003 | WO2003064069A1 Method and installation for producing a hot rolled strip from austenitic rust-resistant steels |
| 08/07/2003 | US20030145916 12Cr Alloy steel for a turbine rotor |
| 08/06/2003 | CN1434766A Use of dimensionally stable iron-chrome-aluminum film |
| 08/06/2003 | CN1434146A Hardness raised inert reaction material for thermo-load construction member |
| 08/06/2003 | CN1433861A Method for producing sintered metal and rotary type compressor flange produced by said method |
| 08/06/2003 | CN1117172C Stainless steel |
| 07/29/2003 | US6599376 FE-CR soft magnetic material and a method of manufacturing thereof |
| 07/24/2003 | US20030138341 Kneading metal powder, pressure molding, sintering, subzero treating powder for predetermined time and tempering resulting powder under compression residual stress; rotary compressor flange |
| 07/24/2003 | US20030136482 Oxidation and corrosion resistance |
| 07/24/2003 | US20030136224 Corrosion resistance; tempering, heat treatment, reduction |
| 07/22/2003 | US6596101 Tensile strength ductility, hardness, and very fine grain sizes; for use in rotors, electric generators, magnetic bearings, aerospace and many other structural and nonstructural applications |
| 07/22/2003 | CA2268623C High ductility very clean non-micro banded die casting steel and method of manufacture thereof |
| 07/17/2003 | US20030131910 Edge cracking during cold rolling is inhibited by conducting cold rolling after subjecting the hot-rolled sheet to 600-800 degrees C. x 10 hr or less intermediate annealing to impart a steel hardness of not greater than Hv 380. |
| 07/15/2003 | US6592810 High strength, low expansion |
| 07/15/2003 | US6592685 15-18% chromium, </=.5% manganese, silicon and carbon 4-10% nickel, >/=15% cobalt, </=4% tungsten, </=4% molybdenum and copper, .5-1% vanadium, niobium, tanalum, hafnium and zirconium totalling .001-.1%, 001-.05% titanum, .13-.25% |
| 07/10/2003 | US20030127164 Heat treatment, cooling; mixture containing carbide structure |
| 07/10/2003 | US20030127162 Method for manufacturing high chromium system seamless steel pipe |
| 07/09/2003 | EP1325174A2 Process of treating stainless steel |
| 07/09/2003 | EP1325166A2 Stainless steel and stainless steel surface |
| 07/08/2003 | US6589363 Method for making heat treated stainless hydraulic components |
| 07/08/2003 | US6588218 Cryogenic tempering process for dynamoelectric devices |
| 07/03/2003 | US20030124019 Ferritic stainless steel having high temperature creep resistance |
| 07/02/2003 | EP1323175A1 Annealed amorphous alloys for magneto-acoustic markers |
| 07/02/2003 | EP1090157A4 Iron-based casting alloy and process for making same |
| 06/26/2003 | WO2003052490A1 Spectacle frame |
| 06/26/2003 | WO2003052156A1 Grain refinement of alloys using magnetic field processing |
| 06/26/2003 | WO2003052153A1 Triple-phase nano-composite steels |
| 06/26/2003 | US20030116239 Method of manufacturing a ferritic-martensitic, oxide dispersion strengthened alloy |
| 06/25/2003 | EP1250205B1 Method for producing angular, stainless shot-blasting abrasives based on an fe-cr-c alloy |
| 06/25/2003 | EP1238118A4 Martensitic stainless steel and steelmaking process |
| 06/25/2003 | CN1426491A Welding method, filler metal composition and article made therefrom |
| 06/25/2003 | CN1426338A Method for brazing and article made therefrom |