| Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120) |
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| 08/22/1990 | EP0383035A2 Iron-silicon alloy powder magnetic cores and method of manufacturing the same |
| 08/21/1990 | US4950873 Improved dry corrosion resistance to chloride-containing compounds |
| 08/21/1990 | US4950556 Magneto-optic recording medium |
| 08/14/1990 | US4948556 Improved abrasion resistance |
| 08/14/1990 | US4948433 Process for preparation of thin grain oriented electrical steel sheet having excellent iron loss and high flux density |
| 08/14/1990 | CA1272591A1 Magnetic thin film |
| 08/09/1990 | DE3901470C1 Cold-working steel and its use |
| 08/08/1990 | EP0381121A1 High-strength heat-resistant steel with improved workability |
| 08/08/1990 | EP0380630A1 Use of a high damping capacity, two-phase fe-mn-al-c alloy. |
| 08/07/1990 | USH807 Manganese-stabilized austenitic stainless steels for fusion applications |
| 08/07/1990 | US4946645 Steel for gears, having high strength, toughness and machinability |
| 08/07/1990 | US4946644 Austenitic stainless steel with improved castability |
| 08/07/1990 | US4946519 Semi-processed non-oriented electromagnetic steel strip having low core loss and high magnetic permeability, and method of making |
| 08/07/1990 | US4946516 Heating, hot rolling, quenching and tempering a slab composed of carbon, silicon, manganese, nickel, molybdenum, chromium, a luminum and iron at controlled temperatures |
| 08/07/1990 | US4946515 Noncracking |
| 08/07/1990 | US4946499 Heating a mixture of ferrous powder and an alloying powder with metal soap or wax and oil |
| 08/02/1990 | DE3902634A1 Austenitischer stahl mit verbesserter widerstandsfaehigkeit gegen neutroneninduziertes schwellen und heliumversproedung Swell Austenitic steel with improved widerstandsfaehigkeit against neutron-induced and heliumversproedung |
| 08/01/1990 | EP0379583A1 SINTERED MAGNETIC Fe-Co MATERIAL AND PROCESS FOR ITS PRODUCTION |
| 08/01/1990 | EP0284699B1 Intermetallic compound and its use |
| 07/31/1990 | US4945339 Anti-theft sensor marker |
| 07/31/1990 | US4944814 Controlled ratio of ferritic to austenitic structure |
| 07/31/1990 | CA1272047A1 Corrosion resistant amorphous chromium alloy compositions |
| 07/26/1990 | WO1990008202A1 Production of seizing-hardenable steel sheet |
| 07/25/1990 | EP0379061A1 Exterior cover part for a watch, and method for manufacturing the same |
| 07/25/1990 | EP0378998A1 Stainless wrought and cast alloys, and welding additives for parts contacted by concentrated hot sulfuric acid |
| 07/25/1990 | EP0378925A1 Powdered steel for cold processing tool |
| 07/25/1990 | EP0378702A1 Sintered alloy steel with excellent corrosion resistance and process for its production |
| 07/25/1990 | CN1044131A Chrome-molybdenum-vanadium heat-resistant and abrasion-resistant cast iron |
| 07/25/1990 | CN1044130A Titanium silicon and process thereof |
| 07/24/1990 | US4942922 Welded corrosion-resistant ferritic stainless steel tubing having high resistance to hydrogen embrittlement and a cathodically protected heat exchanger containing the same |
| 07/18/1990 | EP0377734A1 PRODUCTION OF NON-ORIENTED HIGH-Si STEEL SHEET |
| 07/18/1990 | CN1043960A Improved austinetic cr-ni alloy designed for oil country tubular products |
| 07/18/1990 | CN1043959A Super (positive) frequency temp. coefficient constant elasticity alloy |
| 07/17/1990 | CA1271692A1 Method of manufacturing a cold-rolled steel sheet having a good deep drawability |
| 07/17/1990 | CA1271650A1 High tensile structural steel with favourable weldability |
| 07/17/1990 | CA1271649A1 Formable, temperature-resistant martensitic steel having enhanced resistance to wear |
| 07/11/1990 | EP0377307A1 Powdered high speed tool steel |
| 07/04/1990 | EP0375784A1 Flexible fluid transport pipe |
| 07/04/1990 | CN1043532A High purity ferrite stainless steel |
| 07/03/1990 | US4938808 Martensitic stainless steel sheet having improved oxidation resistance, workability, and corrosion resistance |
| 07/03/1990 | US4938807 Process for production of grain oriented electrical steel sheet having high flux density |
| 07/03/1990 | US4938628 System for moving drilling module to fixed platform |
| 07/03/1990 | US4938045 Method of ascertaining the magnitude of forces acting upon rolls in rolling mills |
| 06/27/1990 | EP0375273A2 Formable thin steel sheets and method of producing the same |
| 06/27/1990 | EP0375039A1 Method for the manufacture of pipe from strip steel |
| 06/27/1990 | EP0172165B1 Nitriding grade alloy steel and article made therefrom |
| 06/26/1990 | US4936926 Hot working, controlled cooling |
| 06/26/1990 | US4936925 Method for producing alloy of low thermal expansion |
| 06/26/1990 | US4936911 Cold work steel |
| 06/26/1990 | CA1270666A1 Spray transfer self-shielded tubular composite hard surfacing electrode |
| 06/21/1990 | DE3841870A1 Steel for producing steel strips for the fabrication of shadow masks |
| 06/20/1990 | CN1008449B Alloy of iron-copper-manganese-boron for making solid rotor of electric machine and its manufacturing process |
| 06/19/1990 | US4935314 Interstitially soluble to iron; corrosion resistance |
| 06/19/1990 | US4935266 Process and material for producing corrosion-resistant layers |
| 06/19/1990 | US4935074 Magnetic material comprising iron, boron and a rare earth metal |
| 06/19/1990 | CA1270426A1 Method for the production of high strength electric seam welded oil-well pipe |
| 06/13/1990 | EP0372948A2 Permanent magnet composition |
| 06/13/1990 | CN1043034A Method of manufacturing permanent magnet |
| 06/13/1990 | CN1042950A Bainite/martensite multi-phase steel with air-cooled high hardenability |
| 06/13/1990 | CN1042949A Expanding alloy determined by antiferromagnetism of fe-mn-cr-al-c series |
| 06/12/1990 | US4933143 Austenitic stainless steel having improved corrosion resistance in hot water |
| 06/12/1990 | US4933142 Low carbon plus nitrogen free-machining austenitic stainless steels with improved machinability and corrosion resistance |
| 06/12/1990 | US4933027 Iron-based shape-memory alloy excellent in shape-memory property, corrosion resistance and high-temperature oxidation resistance |
| 06/12/1990 | US4933026 Soft magnetic alloys |
| 06/12/1990 | US4933024 Hot rolling, cooling, heating to austenite temperature, cooling |
| 06/12/1990 | US4933008 Matrix of alloy steel or high speed tool steel having metal component dispersed therein |
| 06/06/1990 | EP0371840A1 Free cutting mild steel and process for manufacturing same |
| 06/06/1990 | EP0371202A1 High strength martensitic steel alloy and method of preparing same |
| 06/05/1990 | US4931107 Process for producing a cold rolled steel sheet having a good ageing resistance by continuous annealing |
| 06/05/1990 | US4931106 Hot rolled steel sheet having high resistances against secondary-work embrittlement and brazing embrittlement and adapted for ultra-deep drawing and a method for producing the same |
| 05/30/1990 | EP0370645A1 Improvements in and relating to hafnium-containing alloy steels |
| 05/30/1990 | EP0370588A1 Method for producing high-strength seamless steel pipes |
| 05/30/1990 | CN1042589A Water turbine and moving blade of water turbine |
| 05/29/1990 | US4929419 Austenitic steels |
| 05/29/1990 | US4929416 Cast steel |
| 05/29/1990 | US4929289 Iron-based shape-memory alloy excellent in shape-memory property and corrosion resistance |
| 05/29/1990 | US4929288 Corrosion and abrasion resistant alloy |
| 05/29/1990 | US4929275 Magnetic alloy compositions and permanent magnets |
| 05/29/1990 | CA1269594A1 Process for manufacturing pearlitic steel wire |
| 05/29/1990 | CA1269548A1 Austenitic stainless steel allied with cobalt and highly resistant to erosive cavitation |
| 05/23/1990 | EP0369217A2 Magnetic material, method of producing the same, and magnetic head |
| 05/23/1990 | CN1008120B Ultrasoft stainless steel |
| 05/22/1990 | US4927601 Few aluminum oxide inclusions |
| 05/22/1990 | US4927468 Process for making a martensitic steel alloy fuel cladding product |
| 05/22/1990 | CA1269256A1 Method of producing hot-rolled strip having a dual- phase structure |
| 05/16/1990 | EP0368487A1 Welded corrosion-resistant ferritic stainless steel tubing and a cathodically protected heat exchanger containing the same |
| 05/16/1990 | EP0367831A1 Process for producing nonoriented electric steel sheet |
| 05/16/1990 | CN1007993B Easy-to-cut complex calcium sulphur austenitic stainless steel |
| 05/15/1990 | US4925539 Metal fibers obtained by bundled drawing |
| 05/15/1990 | US4925502 Iron-cobalt type soft magnetic material |
| 05/15/1990 | US4925500 High-strength hot-rolled steel sheet having remarkably excellent cold workability and process for manufacturing the same |
| 05/15/1990 | CA1269029A1 Permanent magnet manufacture from very low coercivity crystalline rare earth-transition metal-boron alloy |
| 05/15/1990 | CA1268967A1 Sintered shrink-on cam and process of manufacturing such cam |
| 05/09/1990 | EP0367360A2 Process for manufacturing seamless pressure vessels |
| 05/09/1990 | EP0366655A1 Oxidation resistant iron base alloy compositions. |
| 05/09/1990 | CN1007915B Process for the production of multimetallic amorphous alloy coatings |
| 05/09/1990 | CN1007913B Brasion-and impact-resistant high-carbon manganese chromium rare-earth alloy |
| 05/09/1990 | CN1007912B Highly toughness maraging steel |
| 05/08/1990 | US4923675 Manganese alloying additive melt, nitrogen-containing plasma, saturation |
| 05/08/1990 | US4923528 Method for manufacturing rolled steel products |