| Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120) |
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| 05/29/1991 | EP0429094A1 High strength low carbon steels, steel articles thereof and method for manufacturing the steels |
| 05/29/1991 | EP0428718A1 Improved magnetic materials and process for producing the same |
| 05/29/1991 | EP0130220B1 Corrosion-resistant alloy |
| 05/29/1991 | CN1051818A Anticorrosive rare-earth-transition metal series magnet and method thereof |
| 05/29/1991 | CN1051764A Cold-rolled high tonsion steel strip having excellent stretching and folding properties, and molten zinc coating steel strip, and process for manufacturing same |
| 05/28/1991 | US5019332 Heat, corrosion, and wear resistant steel alloy |
| 05/28/1991 | US5019191 Magnetic steel plate for use as a magnetic shielding member and a method for the manufacture thereof |
| 05/28/1991 | US5019182 Method of forming hard steels by case hardening, shot-peening and aging without tempering |
| 05/28/1991 | US5019180 Method of manufacturing of high-strength seamless steel tubes |
| 05/21/1991 | US5017335 Microalloyed steel and process for preparing a railroad joint bar |
| 05/21/1991 | US5017248 Hot rolled steel sheet with high strength and distinguished formability |
| 05/21/1991 | US5017246 Martensitic stainless steels excellent in corrosion resistance and stress corrosion cracking resistance and method of heat treatment of the steels |
| 05/21/1991 | US5017244 Process for improving the electrical conductivity of a copper-nickel-iron alloy |
| 05/15/1991 | EP0427301A1 High-strength high-Cr ferritic heat-resistant steel |
| 05/15/1991 | EP0427227A2 Fibrous anisotropic permanent magnet and production process thereof |
| 05/15/1991 | CN1051397A Process for producing steel burnisher |
| 05/14/1991 | US5015539 Welded bimetallic strips for saw blades |
| 05/14/1991 | US5015307 Corrosion resistant rare earth metal magnet |
| 05/08/1991 | EP0426367A1 Steel composition |
| 05/08/1991 | EP0425768A1 Method of making stainless ferritic chromium comprising steel |
| 05/08/1991 | CN1051201A Prepn. of pumping rod without heat treatment |
| 05/07/1991 | US5013525 Steel for corrosion-resistant rolling part and rolling part |
| 05/07/1991 | US5013524 For plastic molds |
| 05/07/1991 | US5013411 Surface coated with electroplated nickel layer |
| 05/07/1991 | US5013372 Semi-process non-oriented electromagnetic steel strip having low core loss and high magnetic permeability, and method of making |
| 05/07/1991 | CA1283796C High-strength steel for valve springs, process for producing the steel, and valve springs made of the same |
| 05/07/1991 | CA1283795C High nitrogen containing duplex stainless steel having high corrosion resistance and good structure stability |
| 05/04/1991 | WO1991006685A1 A free machining, non-magnetic, austenitic stainless steel alloy and a magnetically biased device incorporating the same |
| 05/02/1991 | EP0425471A1 Cold work tool steel with high compression strength and use of these steels |
| 05/02/1991 | EP0425058A1 Application of a steel for the manufacture of reinforcing tubes for motor vehicle doors |
| 05/02/1991 | EP0274542B1 Alloy steel powder for powder metallurgy |
| 05/02/1991 | DE4032996A1 Externally galvanised steel profile prodn. - esp. for mfg. reinforcing tubes for automobile doors |
| 04/30/1991 | US5011656 Steels for hot working press tools |
| 04/30/1991 | US5011304 Specific size aluminum oxide inclusion particles; durability |
| 04/24/1991 | EP0423331A1 Method of manufacturing non-oriented electromagnetic steel plates with excellent magnetic characteristics |
| 04/24/1991 | CN1050909A Low-alloy structural steel |
| 04/24/1991 | CN1050903A Process for improving cold formability of heat-treatable steels |
| 04/23/1991 | US5009843 Spring steel having good durability and sag-resistance |
| 04/23/1991 | US5009726 Direct rolling without soaking |
| 04/23/1991 | US5009723 Method for manufacturing high strength non-magnetic stainless steel |
| 04/23/1991 | CA1283305C Ultrahigh carbon steels containing aluminum, and processing thereof |
| 04/18/1991 | DE4029713A1 Steel castings for low temp. use in sea water - has high yield strength and impact strength at low temp. |
| 04/17/1991 | EP0423004A1 Steel of high hardness for armour-plating, process for the manufacturing of this armour-plating and armour-plated products obtained |
| 04/17/1991 | EP0422702A2 Magnetoelastic torque transducer |
| 04/17/1991 | EP0422574A1 High toughness stainless steels and the method of producing the same |
| 04/17/1991 | EP0422378A1 Method of improving the cold workability of hardenable steels |
| 04/17/1991 | EP0422360A1 Use of a nitrogen-bearing, fully austenitic steel for structural parts of railway vehicles |
| 04/17/1991 | EP0422223A1 Method of manufacturing non-oriented electromagnetic steel plates with excellent magnetic characteristics |
| 04/17/1991 | CN1050745A Method for manufacturing iron-boron-silicon alloy |
| 04/16/1991 | US5008073 Mn-B steel alloy composition |
| 04/16/1991 | US5008072 Heat resistant steel and gas turbine components composed of the same |
| 04/16/1991 | US5007956 Assembled cam shaft |
| 04/16/1991 | CA1282983C Forged cold-rolling roll |
| 04/16/1991 | CA1282982C Aluminium - killed steels |
| 04/13/1991 | WO1991006107A1 Corrosion-resistant, rare earth-transition metal magnet and method of production thereof |
| 04/13/1991 | CA2026307A1 Process for improving the cold formability of heat-treatable steels |
| 04/10/1991 | EP0421811A1 Alloy steel for use in injection molded sinterings produced by powder metallurgy |
| 04/10/1991 | EP0421488A2 Permanent magnet with good thermal stability |
| 04/10/1991 | EP0421087A2 Method of manufacturing a steel sheet |
| 04/10/1991 | EP0421084A1 Method for making components by powder metallurgy |
| 04/10/1991 | CN1050570A Air hardening of medium carbon manganese alloy steel |
| 04/10/1991 | CN1050569A Ferrochromium alloy |
| 04/10/1991 | CN1050568A Iron-copper-zinc series materials for cooking utensils and its application method |
| 04/10/1991 | CN1050567A Low-carbon low alloy steel |
| 04/10/1991 | CN1050566A Medium carbon alloy steel |
| 04/03/1991 | EP0420309A1 Method of infiltrating a tubular component |
| 04/03/1991 | EP0420238A2 Process for preparing unidirectional silicon steel sheet having high magnetic flux density |
| 04/02/1991 | CA2000034A1 Corrosion-resistant sintered alloy steels and method for making same |
| 04/02/1991 | CA1282288C Oxidation resistant ferrous base foil |
| 03/27/1991 | EP0418943A1 Sintered materials |
| 03/27/1991 | EP0418808A2 Magnetic dispersions of rare earth magnetic particles with high magnetic energy product in flexible highly saturated nitrile rubber and methods of processing the same |
| 03/27/1991 | EP0418424A1 High strength non-oriented electrical steel sheet and method of manufacturing same |
| 03/27/1991 | CN1050227A Magnetism-free stainless steel |
| 03/27/1991 | CN1050226A Mono-material self-sharpening machine bit and its steel |
| 03/27/1991 | CN1012234B Ferromagnetic film and head using the said film |
| 03/27/1991 | CN1012181B P-added ferritic stainless steel having excellent formability and secondary workability |
| 03/27/1991 | CN1012144B Cold-rolled steel sheets and a method of manufacturing the same |
| 03/26/1991 | US5003291 Ferromagnetic fibers having use in electronical article surveillance and method of making same |
| 03/26/1991 | US5002729 Heat, wear, impact resistant, ductility; bearings, gears; aircraft, knives |
| 03/21/1991 | WO1991003823A1 Permanent magnet |
| 03/21/1991 | WO1991003580A1 Aluminium-manganese-iron stainless steel alloy |
| 03/21/1991 | WO1991003579A1 Aluminum-manganese-iron steel alloy |
| 03/20/1991 | EP0417951A2 Fe-Si-Al alloy magnetic thin film and method of manufacturing the same |
| 03/20/1991 | CN1050046A Smelting process of alloyes of boron-silicon-iron and boron-iron |
| 03/20/1991 | CA2025576A1 Flexible high energy magnetic blend compositions based on rare earth magnetic particles in highly saturated nitrile rubber and methods of processing the same |
| 03/19/1991 | US5001018 Fe-Co base magnetic film and process for producing the same |
| 03/19/1991 | US5000912 Nickel titanium martensitic steel for surgical needles |
| 03/19/1991 | US5000801 Wrought stainless steel having good corrosion resistance and a good resistance to corrosion in seawater |
| 03/19/1991 | US5000797 Method for producing a stainless steel having a good corrosion resistance and a good resistance to corrosion in seawater |
| 03/14/1991 | DE4026796A1 Anisotropic permanent magnet with good temp. resistant properties - made of alloy of iron-cobalt-boron- rare earth |
| 03/14/1991 | DE3930340A1 Chromium-carbide-iron alloy - contains spheroidal vanadium and/or niobium carbide to improve high temp. stress resistance |
| 03/14/1991 | DE3928389A1 Permanentmagnet Permanent magnet |
| 03/13/1991 | EP0416313A1 Austenitic Cr-Ni-Mn-steel excellent in resistance to neutron irradiation embrittlement |
| 03/13/1991 | EP0416098A1 Magnetically anisotropic sintered magnets. |
| 03/13/1991 | CN1049802A Composite steel-bonded carbide hammerhead and its manufacturing process |
| 03/13/1991 | CN1011987B Process for production of double structure stainless cr-steel band having high strength, high ductility and low degree aeolotropy |
| 03/13/1991 | CN1011986B Chrome-molybdenum-vanadium heat-resistant and abrasion-resistant cast iron |
| 03/12/1991 | US4999159 Corrosion resistance, weldability |
| 03/12/1991 | US4999158 Oxidation resistant iron base alloy compositions |
| 03/07/1991 | WO1991002827A1 Shape-memory stainless steel excellent in stress corrosion cracking resistance |