| Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120) |
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| 03/07/1991 | DE3929632A1 Ferritic steel for use as baking trays - has good corrosion resistance against alkali and alkali-salt material |
| 03/06/1991 | EP0415633A1 Iron-based sintered slugs for plastic processing and method for making them |
| 03/06/1991 | EP0414949A1 A luminium-manganese-iron steel alloy |
| 03/06/1991 | EP0414724A1 Ferromagnetic materials. |
| 03/05/1991 | CA2024553A1 Soft-magnetic nickel-iron-chromium alloy |
| 03/05/1991 | CA1280915C High strength and high toughness steel bar, rod and wire and the process of producing the same |
| 03/05/1991 | CA1280914C Controlled expansion alloy |
| 02/28/1991 | DE4015249A1 Mfg. coil-break-free hot rolled strip |
| 02/27/1991 | EP0414376A2 Method for the preparation of a rare earth-iron-boron permanent magnet |
| 02/27/1991 | CN1011794B Steel |
| 02/27/1991 | CN1011793B Alloy steel used for cutting edge of high-speed cold shears |
| 02/27/1991 | CN1011792B High strength-toughness cast steel adding rare-earth ca |
| 02/26/1991 | US4996023 Method of manufacturing a permanent magnet |
| 02/26/1991 | US4995905 Permanent magnet having improved heat-treatment characteristics and method for producing the same |
| 02/21/1991 | WO1991002101A1 A ferrochromium alloy |
| 02/20/1991 | CN1049382A Alloy containing iron, manganese, silicon and nickel by form memory |
| 02/20/1991 | CN1049381A Obtaining metal magnesium with vacuum-thermal method by burning magnesite slightly in magnesite |
| 02/20/1991 | CN1011708B Y 45 ti-s steel and its producing process |
| 02/19/1991 | US4994122 Carbon, manganese, silicon, sulfur, chromium, molybdenum, nitrogen, and iron |
| 02/19/1991 | US4994120 Process for production of grain oriented electrical steel sheet having high flux density |
| 02/19/1991 | US4994118 Process for the production of hot rolled steel or heavy plates |
| 02/19/1991 | US4994109 Method for producing permanent magnet alloy particles for use in producing bonded permanent magnets |
| 02/19/1991 | CA1280301C Ultrasoft stainless steel |
| 02/13/1991 | EP0412397A1 Rhenium-containing protective coating with high corrosion and oxidation resistance |
| 02/13/1991 | CN1049189A Low-alloy high-speed steel |
| 02/12/1991 | US4992239 Khare steel |
| 02/12/1991 | US4992234 Method for the preparation of rare earth-base permanent magnet |
| 02/12/1991 | US4992114 Process for producing grain-oriented thin electrical steel sheet having high magnetic flux density by one-stage cold-rolling method |
| 02/12/1991 | US4992111 Bearing race member and method of fabrication |
| 02/12/1991 | CA1280014C Process for producing the rare earth alloy powders |
| 02/12/1991 | CA1280012C Permanent magnets |
| 02/06/1991 | EP0411931A1 Case hardening corrosion resistant steel alloy and article made therefrom |
| 02/06/1991 | EP0411569A1 Heat resistant steel for use as material of engine valve |
| 02/06/1991 | EP0411515A1 High strength heat-resistant low alloy steels |
| 02/06/1991 | EP0411282A2 Use of precipitation hardening ferritic-perlitic steels as material for valves of combustion engines |
| 02/06/1991 | EP0411061A1 Fe-Mn-Al-C ALLOYS AND THEIR TREATMENT. |
| 02/05/1991 | US4990196 Process for manufacturing building construction steel having excellent fire resistance and low yield ratio |
| 01/30/1991 | EP0410200A1 Porous body for the treatment of gases and/or vapours and/or liquids and process for the production thereof |
| 01/29/1991 | US4988393 Method for producing high-strength steel having improved weldability |
| 01/29/1991 | US4988266 Gas turbine and shroud for gas turbine |
| 01/23/1991 | EP0409389A2 Method and apparatus for refining the domain structure of electrical steels by local hot deformation and product thereof |
| 01/23/1991 | EP0409385A1 Method for domain refinement of oriented silicon steel by low pressure abrasion scribing |
| 01/23/1991 | EP0236489B1 Ultrahigh carbon steels containing aluminum, and processing thereof |
| 01/23/1991 | CN1048730A Process for manufacturing sleeve roller for use with aluminium continuous casting machine |
| 01/22/1991 | US4986857 Hot working and heat treatment of corrosion resistant steels |
| 01/22/1991 | US4986341 Process for making non-oriented high silicon steel sheet |
| 01/22/1991 | CA1279211C Chromium containing alloy for fabricating punch and counter punch plates |
| 01/20/1991 | CA2020160A1 Method and apparatus for refining the domain structure of electrical steels by local hot deformation and product thereof |
| 01/20/1991 | CA2020156A1 Method for domain refinement of oriented silicon steel by low pressure abrasion scribing |
| 01/16/1991 | EP0408281A1 Stainless steels |
| 01/15/1991 | US4985201 Generator rotor steels |
| 01/15/1991 | US4985092 Steel having good wear resistance |
| 01/15/1991 | US4985091 Corrosion resistant duplex alloys |
| 01/15/1991 | US4985090 Non-ageing low-alloy hot-rolled strip-form formable steel |
| 01/13/1991 | WO1991000770A1 Permeable porous body for treating gases and/or vapours and/or liquids and process for manufacturing it |
| 01/13/1991 | CA2036385A1 Permeable, porous body for the treatment of gases and/or vapors and/or liquids and method of producing it |
| 01/10/1991 | WO1991000372A1 Pipe joint made of stainless steel and method of making the same |
| 01/09/1991 | EP0406580A1 A composite material and a method for producing the same |
| 01/08/1991 | US4983356 Ruthenium bearing iron base high temperature structural alloys |
| 01/03/1991 | DE4015248A1 Mfg. coil-break-free hot rolled strip |
| 01/02/1991 | EP0405362A1 Method for manufacturing alloy rod having giant magnetostriction |
| 01/02/1991 | EP0405360A1 Method for manufacturing alloy rod having giant magnetostriction |
| 01/02/1991 | EP0405226A2 Non-magnetic stainless steel |
| 01/02/1991 | EP0404937A1 Method of manufacturing non-oriented electromagnetic steel plates |
| 01/02/1991 | CN1048237A Iron-based soft magnetic material |
| 01/02/1991 | CN1048236A Manufacturing process for steels of soft magnetic |
| 01/02/1991 | CN1048228A Grinding disk |
| 01/02/1991 | CN1048180A Drill chuck nut |
| 01/01/1991 | US4981647 Corrosion resistant |
| 01/01/1991 | US4981646 Corrosion resistant alloy |
| 01/01/1991 | US4981531 Process for producing cold rolled steel sheets having excellent press formability and ageing property |
| 12/31/1990 | WO1991000371A1 Steel composition for a composite roll and heat treatment thereof |
| 12/31/1990 | CA2059293A1 Steel composition for a composite roll and heat treatment thereof |
| 12/27/1990 | WO1990016076A1 Iron base, soft magnetic steel material |
| 12/27/1990 | WO1990015886A1 Production method of soft magnetic steel material |
| 12/27/1990 | EP0380630A4 High damping capacity, two-phase fe-mn-al-c alloy |
| 12/27/1990 | CA1278200C Wear-resistant, sintered iron alloy and process for producing the same |
| 12/25/1990 | US4979997 Heating, cold rolling, hot rolling, decarburization, and annealing |
| 12/25/1990 | US4979996 Low temerpature heating, nitriding runnign strip |
| 12/19/1990 | EP0403332A1 Resulfurized austenitic stainless steel with improved machinability |
| 12/18/1990 | US4978499 Soft steel for machine cutting and method of producing it |
| 12/18/1990 | US4978398 Containing transition metal, rare earth element, yttrium, boron and organic additive |
| 12/18/1990 | CA2020464A1 Soft magnetic steel materials of iron base |
| 12/17/1990 | CA2019187A1 Method of producing soft magnetic steel materials |
| 12/14/1990 | WO1990016075A1 Improved magnetic materials and process for producing the same |
| 12/14/1990 | CA2034496A1 Magnetic materials and process for producing the same |
| 12/13/1990 | WO1990014911A1 Magnetic alloy compositions and permanent magnets |
| 12/13/1990 | DE4017973A1 Precipitation hardenable ferritic pearlitic steel |
| 12/12/1990 | EP0401729A1 Use of precipitation hardening ferritic-perlitic steels for parts subjected to high temperatures |
| 12/12/1990 | CN1047755A Hard magnetic material and magnet manufactured from such hard magnetic material |
| 12/11/1990 | US4976932 Carbon containing compound treating apparatus with resistance to carbon deposition |
| 12/05/1990 | EP0401098A1 Hot rolled magnetic steel sheet |
| 12/05/1990 | EP0400564A1 Spring steel having good durability and sag-resistance |
| 12/05/1990 | EP0400549A2 Process for producing grainoriented electrical steel sheet having superior magnetic and surface film characteristics |
| 12/05/1990 | EP0400195A1 Martensitic stainless steel |
| 12/05/1990 | CN1047536A Special high-speed steel containing cobalt and aluminium |
| 12/05/1990 | CN1047535A Secondary punch heading top for rustless steel pipe base |
| 12/04/1990 | US4975335 Fe-Mn-Al-C based alloy articles and parts and their treatments |
| 12/04/1990 | US4975242 Nondeforming during cold forging; used for making bolts, nuts and automobile parts |
| 12/04/1990 | US4975131 Comprising limited carbon, boron, silicon, manganese and at least one member selected from copper, sulfur, selenium, nickel, chromium, nitrogen, niobium and iron; crystal structure; corrosion resistance |