| Patents for C21D 6 - Heat treatment of ferrous alloys (4,815) |
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| 03/17/1994 | WO1994005824A1 Structural member and process for producing the same |
| 03/16/1994 | EP0414724B1 Ferromagnetic materials |
| 03/16/1994 | CN1024025C Process for producing high strength stainless steel of duplex structure having excellent spring limit value |
| 03/09/1994 | EP0585940A1 Alloy with ultrafine crystal grains excellent in corrosion resistance |
| 03/08/1994 | US5292384 Cr-W-V bainitic/ferritic steel with improved strength and toughness and method of making |
| 03/01/1994 | US5290372 Fe-Mn group vibration damping alloy manufacturing method thereof |
| 02/16/1994 | CN1023817C T-branch used in pipe-lines and shaping technology thereof |
| 02/15/1994 | US5286309 Electric-resistance-welded steel pipe with high strength |
| 02/03/1994 | WO1994002950A1 Magnetic materials and method of making them |
| 02/02/1994 | CN1081490A Process for mfg. high-strength sucker cod |
| 01/26/1994 | EP0580062A1 Process for manufacturing of thick armour plates |
| 01/19/1994 | EP0579365A2 Method of improving wear-resistance characteristics of a porous metal machine part |
| 01/11/1994 | CA1325998C Method of processing cold-rolled stainless-steel sheet and strip |
| 01/11/1994 | CA1325902C Low thermal expansion casting alloy having excellent machinability |
| 01/04/1994 | US5275672 Razor blade steel having high corrosion resistance and differential residual austenite content |
| 12/29/1993 | EP0576055A1 Fine-grained anisotropic powder from melt-spun ribbons |
| 12/22/1993 | EP0575190A2 Fe-base soft magnetic alloy and process for making same |
| 12/22/1993 | EP0574513A1 Fe-ni based soft magnetic alloys having nanocrystalline structure. |
| 12/18/1993 | CA2098532A1 Fe-base soft magnetic alloy and process for making same |
| 12/14/1993 | US5269370 Thermal cycling device |
| 11/30/1993 | US5266417 For liquid natural gas tanks |
| 11/09/1993 | US5259200 Process for the cryogenic treatment of metal containing materials |
| 11/02/1993 | US5257733 Process for thermodynamically treating a region joining two members and product thereof |
| 10/26/1993 | US5256211 Applying current to magnetizable core; inducing flux, voltage; cooling |
| 10/26/1993 | CA1323548C Maraging steel |
| 10/20/1993 | CN1077496A Heat treatment of wear resisting iron or steel pieces |
| 10/19/1993 | CA1323219C Fe-base soft magnetic alloy and method of producing same |
| 10/12/1993 | US5252144 Heat treatment process and soft magnetic alloys produced thereby |
| 10/06/1993 | EP0416098B1 Magnetically anisotropic sintered magnets |
| 09/30/1993 | WO1993019211A1 Method for continuous recrystallization annealing of a steel strip |
| 09/30/1993 | CA2131282A1 Method for continuous recrystallization annealing of a steel strip |
| 09/14/1993 | US5244627 Suitable for magnetic heads used in high density recording on magnetic tapes or disks |
| 09/08/1993 | EP0558691A1 New category of magnetic materials, their production and use. |
| 09/01/1993 | EP0557634A1 Abrasion-resistant steel |
| 08/28/1993 | CA2063327A1 Abrasion-resistant steel |
| 08/26/1993 | DE4204982A1 Thermochemical-thermal treatment of case hardening steels - with deep cooling between hardening and tempering |
| 08/25/1993 | CN1021918C Process for improving cold formability of heat-treatable steels |
| 08/24/1993 | US5238645 Containing chromium, molybdenum, carbon, carbide former |
| 08/24/1993 | CA1321533C Method and apparatus for cryogenic treatment of coriolis mass flow meter structures |
| 07/14/1993 | EP0478674B1 Method for preparing permanent magnets based on neodymium-iron-boron |
| 07/13/1993 | US5226978 Steel tube alloy |
| 07/06/1993 | US5225005 Method of annealing/magnetic annealing of amorphous metal in a fluidized bed and apparatus therefor |
| 06/30/1993 | EP0548119A1 Austenitic wear resistant steel and method for heat treatment thereof |
| 06/29/1993 | US5223053 Warm work processing for iron base alloy |
| 06/29/1993 | CA1319589C Method of producing fe-ni series alloys having improved effect for restraining streaks during etching |
| 06/22/1993 | CA1319309C Die-upset manufacture to produce high volume fractions of re-fe-b type magnetically aligned material |
| 06/09/1993 | EP0545384A1 Bearing components and process for producing same |
| 06/08/1993 | US5217544 Process for the production of a stainless steel with martensite ferrite two-phase structure and steel obtained by the process |
| 06/08/1993 | US5217158 Process for thermodynamically treating a region joining two members |
| 06/01/1993 | CA1318575C Method of manufacturing, concentrating, and separating enhanced magnetic parameter material from other magnetic co-products |
| 05/25/1993 | US5213631 Alloys with boron and copper |
| 05/18/1993 | US5211771 Soft magnetic alloy material |
| 05/18/1993 | US5211767 Iron with boron, copper and transition metals formed by alloying |
| 05/13/1993 | WO1993009549A1 Heat treatment process and soft magnetic alloys produced thereby |
| 05/12/1993 | EP0286675B1 Process for manufacturing martensitic stainless steel excellent in stress corrosion cracking resistance |
| 05/11/1993 | US5209791 Process for producing amorphous alloy forming material |
| 04/20/1993 | CA1316438C Heat treatment of corrosion resistant steels |
| 04/15/1993 | DE4222026C1 Semi-finished prod. mfr. used as catalyst supports - by coating starting material, e.g. ferritic stainless steel, with at least one chromium@ layer and diffusion heat treating |
| 04/13/1993 | US5202089 Tough, corrosion resistant alloys used in molds for plastics |
| 04/13/1993 | US5202088 Ferritic heat-resisting cast steel and a process for making the same |
| 03/23/1993 | US5196075 Method for modifying and thereby improving the corrosion resistance and hardness of workpieces of ferritic steel |
| 03/17/1993 | EP0531776A1 Heat-resistant, hot workable austenitic steel |
| 03/03/1993 | EP0530175A2 Steel for wood saw blades |
| 02/16/1993 | US5186769 Milling, shaping, stretching of steel containing controlled amounts of vanadium and nitrogen, then dynamic recrystallization without static precipitation |
| 02/16/1993 | US5186768 Flat spring hose clamp and manufacture of same |
| 02/16/1993 | US5186688 Cold working, passivation, aging |
| 02/02/1993 | US5183518 Cryogenically super-hardened high-chromium white cast iron and method thereof |
| 01/27/1993 | EP0524335A1 Low-temperature service nickel steel plate with excellent weld toughness |
| 01/21/1993 | WO1993001319A1 Material and workpiece for nuclear engineering and production thereof |
| 01/21/1993 | WO1993001318A1 Material and workpiece for nuclear engineering and production thereof |
| 01/13/1993 | CN1067924A Vacuum chamber type low-temp. treating device |
| 01/12/1993 | US5178693 Process for producing high strength stainless steel of duplex structure having excellent spring limit value |
| 01/07/1993 | EP0521774A1 Method for producing a clad steel sheet with a layer of stainless metal |
| 12/29/1992 | US5174122 Method and means of low temperature treatment of items and materials with cryogenic liquid |
| 12/15/1992 | US5171384 Process for producing high strength stainless steel strip excellent in shape |
| 12/10/1992 | WO1992021786A1 Process for forming passive film on stainless steel, and stainless steel and gas- and liquid-contacting part |
| 12/02/1992 | EP0515483A1 Amorphous fe-b-si alloys exhibiting enhanced ac magnetic properties and handleability. |
| 12/01/1992 | US5167733 Tough, hard golf club head |
| 12/01/1992 | US5167557 Method for manufacturing a shadow mask |
| 11/03/1992 | US5160379 Fe-base soft magnetic alloy and method of producing same |
| 10/29/1992 | WO1992015998A3 Fe-ni based soft magnetic alloys having nanocrystalline structure |
| 10/20/1992 | US5156691 Process for improving the cold formability of heat-treatable steels |
| 10/20/1992 | CA1308997C Process for the production of a strip of a chromium stainless steel of a duplex structure having high strength and elongation as well as reduced plane anisotropy |
| 10/14/1992 | EP0508574A1 Martensitic stainless steel article and method for producing the same |
| 10/14/1992 | EP0508148A2 Soft magnetic alloy material |
| 10/13/1992 | US5154781 Method to make casting alloy golf clubs |
| 10/12/1992 | CA2061765A1 Martensitic stainless steel article and method for producing the same |
| 10/06/1992 | US5152848 Cold-workable ferretic steels; controlled heating during rod rolling for forming screws |
| 09/30/1992 | CN2117379U Vacuum low temp. treating apparatus |
| 09/17/1992 | WO1992015998A2 Fe-ni based soft magnetic alloys having nanocrystalline structure |
| 09/17/1992 | WO1992015995A1 New category of magnetic materials, their production and use |
| 09/17/1992 | CA2104211A1 Fe-ni based soft magnetic alloys having nanocrystalline structure |
| 09/16/1992 | CN1064561A Fe-ni based soft magnetic alloys having nanocrystalline structure |
| 08/12/1992 | EP0498105A1 High strength and high toughness stainless steel and method of manufacturing the same |
| 08/11/1992 | US5137584 Niobium carbide strengthened steel for porcelain enameling |
| 08/05/1992 | EP0497642A1 Method for manufacturing massive steel workpieces and workpieces thereby obtained |
| 08/04/1992 | CA1305911C Process for the production of a strip of a chromium stainless steel of a duplex structure having high strength and elongation as well as reduced plane anisotropy |
| 08/01/1992 | CA2060410A1 Process for the manufacturing of steel blocks or solid steel and parts obtained thereby |
| 07/29/1992 | EP0496350A1 Martensitic stainless steel |
| 07/23/1992 | DE4101220A1 Mfr. of martensitic chromium steel workpiece - by controlled, cyclic heat-treatment schedule to give improved mechanical properties |