| Patents for C21D 6 - Heat treatment of ferrous alloys (4,815) |
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| 08/23/2001 | DE10062036A1 Wälzlager und Verfahren zu seiner Herstellung Rolling and process for its preparation |
| 08/22/2001 | EP1126747A2 Heating device for metallic pieces |
| 08/22/2001 | EP1126042A1 A steel |
| 08/22/2001 | EP1124999A1 Iron-cobalt alloy with a low coercitive field intensity and method for the production of semi-finished products made of an iron-cobalt alloy |
| 08/22/2001 | EP0742841B1 Method of making dual phase steel plate |
| 08/22/2001 | CN1309188A Steel |
| 08/22/2001 | CN1069930C Material for magnetic shield, prodn. method thereof, and color TV picture tube contg. same |
| 08/21/2001 | US6277216 Austenitized at a temperature of 900 degrees c to maintain a fine grain structure, subsequently quenched and tempered; high strength |
| 08/21/2001 | US6277215 Stainless steel fur gaskets |
| 08/16/2001 | WO2001059168A1 Iron base high temperature alloy |
| 08/16/2001 | US20010014262 Self-tapping corrosion resistant screw with hardened tip |
| 08/16/2001 | US20010013428 Drilling system |
| 08/16/2001 | EP1123983A1 Shape memory alloy |
| 08/14/2001 | US6273973 Martensitic stainless steels microstructure suitable for the production of razor blades. |
| 08/14/2001 | US6273968 Low-carbon steels of superior mechanical and corrosion properties and process of making thereof |
| 08/14/2001 | CA2052346C Welding high-strength nickel base superalloys |
| 08/08/2001 | EP1122327A1 Aperture grill material for color picture tube, production method thereof, aperture grill and picture tube |
| 08/02/2001 | WO2001054899A1 Use of a dimensionally stable iron-chrome-aluminum film |
| 07/31/2001 | US6267828 Containing precipitated carbide |
| 07/26/2001 | WO2001053556A1 Maraging type spring steel |
| 07/26/2001 | WO2001053022A1 Method for producing angular, stainless shot-blasting abrasives based on an fe-cr-c alloy |
| 07/26/2001 | DE10049185A1 Process for the thermochemical edge layer treatment of austenitic steel comprises inserting impurity atoms into the substrate edge layer by contacting with the substrate material in an gas atmosphere enriched with interstitial atoms |
| 07/26/2001 | DE10002738A1 Production of abrasive grains made of non-rusting cast stainless steel involves producing granules from a hardenable iron-chromium-carbon alloy melt, heat treating and cooling |
| 07/26/2001 | DE10001650A1 High strength hardenable corrosion-resistant spring steel used for spring elements contains alloying additions of nickel, chromium, titanium and beryllium |
| 07/25/2001 | EP1118687A1 High-strength, high-toughness martensitic stainless steel sheet, method of inhibiting cold-rolled steel sheet edge cracking, and method of producing the steel sheet |
| 07/25/2001 | CN1305014A Microcomputer controlled deeply cold processing equipment and its technology |
| 07/18/2001 | EP1116796A2 High chromium ferritic heat resisting steel and method of heat treatment for the same |
| 07/12/2001 | WO2001049888A1 Method for austempering steel parts |
| 07/12/2001 | WO2001049887A1 Method for working steel |
| 07/10/2001 | US6258463 Anodized cryogenically treated aluminum |
| 07/10/2001 | US6258185 Forming metallic glass; converting portion of glass to crystalline steel material having nanocrystalline scale grain size; transforming portion of crystalline steel material to metallic glass |
| 07/05/2001 | US20010006081 Carbon, silicon, oxygen, manganese, phosphorus, sulfur, nickel, molybdenum, cobalt, titanium, aluminum, nitrogen, oxygen, and the balance iron |
| 07/05/2001 | DE10002933C1 Iron-chromium-aluminum foil production, used e.g. as support material for exhaust gas treatment catalysts, comprises coating one or both sides of supporting strip with aluminum or aluminum alloys, and carrying out homogenizing treatment |
| 07/04/2001 | EP1113084A1 Ferritic stainless steel plate and method |
| 07/03/2001 | US6255005 Composite magnetic member, method of producing ferromagnetic portion of same, and method of forming non-magnetic portion of same |
| 07/03/2001 | US6254698 Ultra-high strength ausaged steels with excellent cryogenic temperature toughness and method of making thereof |
| 07/03/2001 | US6254697 Which contains c, si, mn, ni, cr, mo, v, w, nb and/or ta, b, ti, al, n, o, p and s in predetermined proportions, the balance being fe, improved impact resistance (weldability) and toughness while maintaining its creep rupture strength |
| 06/27/2001 | EP1111080A2 Maraging steel having high fatigue strength and maraging steel strip made of same |
| 06/27/2001 | CN1301335A Process components, containers, and pipes suitable for containing and transporting cryogenic temperature fluids |
| 06/26/2001 | US6251198 Micro-laminate microstructure comprising austenite film layers and fine-grained marten site/lower bainite laths |
| 06/26/2001 | US6251197 Produced from a blank of steel material subjected to a heat treatment including carburization and thereby made to contain a spheroidal carbide precipitated and dispersed in a carburized layer matrix. |
| 06/20/2001 | CN1300437A Amorphous alloy with increased operating induction |
| 06/20/2001 | CN1299882A Isothermal process for lumpy nanometer Fe-N alloys |
| 06/19/2001 | US6248191 Heating and reducing a steel slab by hot rolling to form a plate, further reducing the plate by hot rolling, and then cooling and quenching plate, allowing plate to air cool to fascilitate fine-grain lower bainite or martensite formation |
| 06/19/2001 | US6248187 Comprising carbon, silicon, manganese, chromium, phosphorus, sulfur, aluminum, nitrogen, and iron and having a martinistic structure; excellent in strength and low temperature toughness |
| 06/14/2001 | US20010003293 Ferritic stainless steel plate and method |
| 06/13/2001 | EP1106705A1 Stainless steel for brake disc excellent in resistance to temper softening |
| 06/12/2001 | US6245289 Stainless steel alloy for pulp refiner plate |
| 06/12/2001 | US6245163 Without a high ni content, and yet does not exhibit stress corrosion cracking in the light water of high temperature and high pressure in a nuclear reactor. |
| 06/07/2001 | WO2001040526A1 Martensitic stainless steel and steelmaking process |
| 06/07/2001 | CA2388021A1 Martensitic stainless steel and steelmaking process |
| 06/06/2001 | CN1298034A Stainless steel for brake with excellent anti-temper softening performance |
| 06/06/2001 | CN1066779C Process for producing Fe-Ni alloy sheet and Fe-Ni alloy shadow mask |
| 05/31/2001 | WO2000071759A3 Methods of forming steel |
| 05/31/2001 | DE19963973C1 Production of bainite from steel parts comprises austenizing the parts, quenching to a starting temperature, isothermally storing the steel parts at the starting temperature and isothermally storing the parts at a finishing temperature |
| 05/30/2001 | EP0689717B1 Method of manufacturing a shadow mask of the nickel-iron type |
| 05/29/2001 | US6238455 High-strength, titanium-bearing, powder metallurgy stainless steel article with enhanced machinability |
| 05/25/2001 | WO2001036699A1 Method for fabricating vehicle components and new use of a precipitation hardenable martensitic stainless steel |
| 05/23/2001 | EP0909437A4 Semi-hard magnetic elements formed by annealing and controlled oxidation of soft magnetic material |
| 05/23/2001 | EP0907939A4 Annealing magnetic elements for stable magnetic properties |
| 05/16/2001 | EP1099771A1 Stainless steel plate for shadow mask and method for production thereof and shadow mask |
| 05/16/2001 | EP0820530B1 Screwdriver or screwdriver bit |
| 05/16/2001 | CN1295626A Stainless steel |
| 05/16/2001 | CN1295625A Cold work steel |
| 05/09/2001 | EP1097248A1 Case hardened steel with high tempering temperature, method for obtaining same and parts formed with said steel |
| 05/09/2001 | EP0934579A4 Magnetostrictive element for use in a magnetomechanical surveillance system |
| 05/09/2001 | CN1294636A Steel material and method for its mfg. |
| 05/03/2001 | WO2001031076A1 Machinable high strength stainless steel |
| 05/03/2001 | WO2001031071A1 Processing of intermetallic alloys |
| 05/03/2001 | DE10030433A1 Production of wear-resistant edge layers on workpieces comprises subjecting component which has been solution annealed and heat treated conventionally to renewed short term solution annealing of edge layer and further heat treating |
| 05/03/2001 | CA2426585A1 Processing of intermetallic alloys |
| 05/03/2001 | CA2387880A1 Machinable high strength stainless steel |
| 05/02/2001 | EP1096030A2 Bake hardenable vanadium containing steel |
| 05/02/2001 | CN1065282C Method for complete bainite hardening of steel |
| 04/25/2001 | EP1094121A2 Method and manufacturing a laminated ring |
| 04/24/2001 | US6221184 Subjecting steel to cooling after complete solidification |
| 04/24/2001 | US6220306 A hot rolled plate of low carbon martensite stailess steel which consists of 0.05% or less carbon, 10 to 15% chromium, 1 to 8% nickel, optional chromium and molybdenum and balance iron and impurities; corrosion resistance and formability |
| 04/17/2001 | US6217676 Steel having microstructure of substantially single phase martensite in as-quenched or as-normalized condition |
| 04/17/2001 | US6217672 Annealing crystalline or nanocrystalline magnetic alloy at elevated temperature under application of dynamic magnetic field to produce easy-planar texture in said alloy |
| 04/15/2001 | CA2323270A1 Paper drill bit |
| 04/12/2001 | DE19947719A1 Vehicle chassis or chassis component is made of a metallic material that hardens in specified temperature region |
| 04/12/2001 | DE19945942A1 Borarme Nd-Fe-B-Legierung und Verfahren zur Herstellung von Dauermagneten aus dieser Legierung Low-boron, Nd-Fe-B alloy and method for producing permanent magnets from this alloy |
| 04/11/2001 | EP1090157A1 Iron-based casting alloy and process for making same |
| 04/11/2001 | CN1290766A Stainless steel plate with enriched copper crystal and/or copper coagulated layer dispersed in substrate |
| 04/10/2001 | US6212891 Process components, containers, and pipes suitable for containing and transporting cryogenic temperature fluids |
| 04/07/2001 | CA2303750A1 Stainless alloys for enhanced corrosion resistance |
| 04/05/2001 | WO2001024203A1 BORON-LOW Nd-Fe-B ALLOY AND METHOD FOR PRODUCING PERMANENT MAGNETS ON THE BASIS OF SAID ALLOY |
| 04/04/2001 | EP0789089B1 High-nickel austenitic stainless steel resistant to degradation caused by neutron irradiation |
| 04/03/2001 | US6210806 Martensitic stainless steel having oxide scale layers |
| 03/29/2001 | DE19946327A1 Heat treatment process comprises cooling the steel at direct or simple hardnesses to a specified temperature above the martensitic starting temperature of the edge, heating to a specified temperature and cooling to room temperature |
| 03/28/2001 | EP1087030A2 Method of producing tool steel and tool |
| 03/28/2001 | EP1087028A1 High-chromium containing ferrite based heat resistant steel |
| 03/28/2001 | EP1087027A1 A stainless steel sheet having Cu-enriched grains dispersed in its matrix and/or a Cu-condensed layer |
| 03/28/2001 | CN1288974A Fe-Mn-Si base marmem containing Cr and N and its training method |
| 03/21/2001 | EP1085531A2 Multielement interstitial hard magnetic material and process for producing magnetic powder and magnet using the same |
| 03/21/2001 | EP1084827A2 Positive electrode for electrocoagulation printing |
| 03/21/2001 | CN1288239A Multielement gap type permanent-magnet material and production process of magnetic powler and magnet |
| 03/13/2001 | US6200395 Free-machining steels containing tin antimony and/or arsenic |
| 03/13/2001 | US6200394 High speed tool steel |
| 03/08/2001 | WO2000040764A3 Ultra-high strength ausaged steels with excellent cryogenic temperature toughness |