Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120)
06/1993
06/23/1993CN1073384A Method for producting rare earth alloy magnet powder
06/23/1993CN1021347C Method for smelting reduction of ni ore
06/22/1993US5221378 Method for the preparation of high-strength fine wire of high-carbon steel
06/22/1993US5221374 Adding cobalt, casting, heating and cooling
06/22/1993US5221373 Internal combustion engine valve composed of precipitation hardening ferritic-pearlitic steel
06/22/1993US5221372 Cryogenically deforming austenitic microstructure to martensitic structure, tempering, surface nitriding; useful for bearing applications
06/22/1993US5221368 Treating hydrogen atmosphore under controlled conditions of temperature and pressure
06/22/1993CA1319309C Die-upset manufacture to produce high volume fractions of re-fe-b type magnetically aligned material
06/16/1993EP0546799A1 Method for producing rare earth alloy magnet powder
06/16/1993EP0546517A1 Corrosion-erosion resistant alloy for use in boilers, and composite tube with this alloy
06/16/1993CN1073216A Electrical steel sheet with grain orientation and possessing fine magnetic property and its production process
06/15/1993CA1319034C High energy product rare earth-iron magnet alloys
06/11/1993CA2084912A1 Alloy and composite steel tube with erosion resistance for use in boilers
06/10/1993WO1993011270A1 Weldable high-strength structural steel with 13 % chromium
06/10/1993CA2125178A1 Weldable high-strength structural steel with 13% chromium
06/09/1993EP0545852A1 Corrosion resistant nail to be nailed into hard materials
06/09/1993EP0545753A1 Duplex stainless steel having improved strength and corrosion resistance
06/09/1993EP0545384A1 Bearing components and process for producing same
06/09/1993EP0544836A1 Controlled thermal expansion alloy and article made therefrom.
06/09/1993DE4241120A1 Use of specified boron@- nickel@- bainite steel - for mfg. machine parts used at high temps. and under high tensile strain e.g. steam turbines
06/09/1993CN1072965A Molybdenum-contained bainite low alloy steel and its heat-treatment process
06/09/1993CN1072873A Anticorrision nail suitable for hard material
06/08/1993USRE34278 Steel with a composition of iron, carbon, silicon, phosphorus and molybdenum
06/08/1993US5217545 Heater sheath alloy
06/08/1993US5217543 Rare earth-iron magnet
06/08/1993CA1318838C Process for the production of hot rolled steel or heavy plates
06/08/1993CA1318836C Non-ageing low-alloy hot-rolled strip-form formable steel
06/08/1993CA1318835C Permanent magnet for accelerating corpuscular beam
06/02/1993CN1072796A Adhesive iron-base rare earth permanent magnet and producing method thereof
06/02/1993CN1072795A Quick-forming iron-base rare earth permanent magnet and producing method thereof
06/02/1993CN1072726A Silicon-aluminum-barium-strontium-iron alloy for steel-deoxidizing and producing method thereof
06/01/1993US5215765 Two opposite rollers with cooling ducts; roller base body coated with nickel chromium molybdenum steel; recesses for shaping
06/01/1993CA1318577C Method of making non-oriented electrical steel sheets having excellent magnetic properties
06/01/1993CA1318576C Method of making non-oriented silicon steel sheets having excellent magnetic properties
05/1993
05/26/1993EP0543596A1 Method for the preparation of high-strength fine wire of high-carbon steel
05/26/1993CN1072460A Improvement in method for prepn. of high-strength fine wire of high-carbon steel
05/26/1993CN1020984C Low-frequency transformer
05/26/1993CN1020865C Composite steel-bonded carbidce hammer head and its manufacturing process
05/25/1993US5213634 Hot working a steel composition, cooling to produce a ferritic bainitic crystal structure
05/25/1993US5213633 Silicon, manganese, phosphorous and aluminum alloys
05/25/1993US5213632 Process for obtaining a high-strength strain-hardened steel wire usable for making reinforcing cables for elastomeric articles, such as pneumatic tires, and reinforcing elements (cables) produced from such wires
05/25/1993US5213631 Alloys with boron and copper
05/25/1993US5213629 Ear-infrared emitter of high emissivity and corrosion resistance and method for the preparation thereof
05/19/1993DE4137240A1 AFP steel used for prodn. of large forged tools - has low sulphur content and uniformly high tensile strength through tempering
05/19/1993CN1072216A Excellent cold working performance and corrosion resisting property iron-base marmem
05/19/1993CN1020761C Cr-mn-n series stainless steel used on rotor wheel of water turbine
05/18/1993US5211909 Low-alloy heat-resistant steel having improved creep strength and toughness
05/18/1993US5211772 Wire rod for high strength and high toughness fine steel wire, high strength and high toughness fine steel wire, twisted products using the fine steel wires, and manufacture of the fine steel wire
05/18/1993US5211767 Iron with boron, copper and transition metals formed by alloying
05/18/1993CA1317859C Method for producing roll steel products
05/18/1993CA1317800C Orthodontic coil spring and method of making the same
05/13/1993WO1993009549A1 Heat treatment process and soft magnetic alloys produced thereby
05/12/1993EP0540916A1 Improved high-intensity rotary peening particle support and method of making same
05/12/1993EP0540792A1 Steel having excellent vibration-damping properties and weldability
05/12/1993EP0322463B1 Heat treatment hardenable hot rolled steel sheet having excellent cold workability and process for its production
05/12/1993EP0286675B1 Process for manufacturing martensitic stainless steel excellent in stress corrosion cracking resistance
05/11/1993US5209900 High-fineness shadow mask material and process for producing the same
05/11/1993US5209792 Steel consisting of carbon, silicon, manganese, phosphorus, sulfur, aluminum and iron
05/07/1993CA2080265A1 High-intensity rotary peening particle support and method of making same
05/05/1993EP0539962A1 Method of manufacturing a cold rolled steel sheet exhibiting an excellent resistance to cold-work embrittlement and a small planar anisotropy
05/05/1993EP0539858A1 Process for producing grain-oriented electrical steel strip having high magnetic flux density
05/05/1993EP0539592A1 Magnetic material
05/05/1993EP0277239B1 Abrasion-resistant sintered alloy and process for its production
05/05/1993CN1071649A Process and apparatus for production of mineral wool and mineral wool produced
05/05/1993CN1020421C Method of producing trolley-bus collector slide block
05/04/1993US5208079 Ion plating; coating with layers of titanium and its carbide and nitride
05/04/1993US5207843 Chromium hot work steel
05/04/1993US5207841 Soft magnetic powder and magnetic shield composition
05/04/1993CA1317131C Pitting resistant duplex stainless steel alloy
04/1993
04/29/1993WO1993008313A1 Nonoriented electrical steel sheets with superior magnetic properties, and methods for manufacturing thereof
04/29/1993DE4134976A1 Galvanic application of structures in relief on to endless pressed steel strips - following acid bath treatment with accompanying low redn. in hardness of alloy in welded seam area
04/28/1993EP0538643A1 Method of making an N-containing permanent magnet, such as Sm2Fe17N by addition of a solid N-containing composition
04/27/1993US5206880 Furnace having tubes for cracking hydrocarbons
04/21/1993EP0538158A1 Low alloy, resulfurized free-cutting steel
04/21/1993EP0537848A1 Silicon-containing iron sheet for electrical applications and methods for its manufacture
04/20/1993US5204193 With first layer of iron, cobalt and dysprosium or terbium having predetermined Curie point and coercivity, second layer of gadolinium, iron, cobalt with higher Curie point and lower coercivity
04/20/1993US5204056 Melting and equilibrating steel in atomosphere of mixed gas containing nitrogen, casting or solidifying
04/20/1993US5203932 Stress resistance, corrosion resistance, nuclear reactor cores
04/20/1993CA1316438C Heat treatment of corrosion resistant steels
04/20/1993CA1316436C Accelerated whisker growth on iron-chromium-aluminum alloy foil
04/19/1993WO1993008312A1 Soft magnetic steel material with excellent direct current magnetizability and corrosion resistance and production thereof
04/15/1993WO1993007303A1 Precipitation hardenable martensitic stainless steel
04/15/1993DE4133480A1 Corrosion resistant chrome-alloy steel exhibiting improved tensile strength and weldability - is used in mfr. of moulds in plastics industry and has compsn. having specified carbon and chromium@ contents
04/14/1993EP0319590B1 High-strength, cold-rolled steel sheet having high r value and process for its production
04/14/1993CN1071027A High-magnetic heat stability cobalt improved r-ferric oxide magnet powder and its made method
04/14/1993CN1070953A Drill rod steel
04/14/1993CN1070952A Biphase steel for wear-resisting screen mesh and heat treating technology
04/13/1993US5202089 Tough, corrosion resistant alloys used in molds for plastics
04/13/1993US5202088 Ferritic heat-resisting cast steel and a process for making the same
04/13/1993US5202012 Method for manufacturing zinciferous electroplated steel sheet excellent in press-formability
04/13/1993US5201965 Heat-resistant cast steel, method of producing same, and exhaust equipment member made thereof
04/13/1993US5201962 Method of making permanent magnet containing rare earth metal and ferrous component
04/13/1993US5201791 Single alloy system for turbine components exposed substantially simultaneously to both high and low temperature
04/07/1993EP0535888A1 Method for manufacturing a friction - welded valve
04/07/1993EP0535238A1 High-strength steel sheet for forming and production thereof
04/07/1993CN1070693A Tube joiner of iron base marmem and its production method
03/1993
03/31/1993EP0534864A1 Duplex stainless steel having improved corrosion resistance and process for the production thereof
03/31/1993EP0534460A1 Iron-nickel-cobalt alloy for a shadow mask
03/31/1993EP0534164A2 Heat-resistant nitride dispersion strengthened alloys
03/31/1993EP0533812A1 Iron-based powder, component produced therefrom, and method of producing the component.