Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120)
03/1992
03/11/1992EP0474375A2 Improvements in materials
03/11/1992CN1059374A Multielement alloy steel grinding ball
03/10/1992US5094923 Air hardening steel
03/10/1992US5094812 Austenitic, non-magnetic, stainless steel alloy
03/10/1992US5094698 Warm forming
03/10/1992CA1297070C Extra-low iron loss grain oriented silicon steel sheets
03/10/1992CA1296929C Corrosion and wear resistant steel
03/03/1992US5093555 Electrical resistance; internal combustion engines
02/1992
02/26/1992EP0472305A1 Martensitic stainless steel for oil well
02/26/1992CN1058997A Unhardened and untempered low carbon steel with high strength and toughness
02/25/1992US5091266 Soft-magnetic film having saturation magnetic-flux density and magnetic head utilizing the same
02/25/1992US5091264 Support strip, tool steel overcoating
02/25/1992US5091147 Consists of carbon, nitrogen, silicon, manganese, phosphorus, sulfur, chromium as nitride, niobium as carbide and nitride, iron and incidental impurities; oxidation and fatigue resistance
02/25/1992US5091024 Corrosion resistant, magnetic alloy article
02/22/1992WO1992003584A1 Controlled thermal expansion alloy and article made therefrom
02/20/1992WO1992002653A1 High strength damping alloy
02/20/1992WO1992002652A1 Damping alloy
02/19/1992EP0471255A1 Heat-resistant, austenite cast steel and exhaust equipment member made thereof
02/18/1992US5089224 With controlled concentrations of sulfur, calcium, oxygen; for reduced wear on cutting tools
02/18/1992US5089223 Fe-cr-ni-al ferritic alloys
02/18/1992US5089068 Cold rolled steel sheets having improved spot weldability
02/18/1992US5089067 Cast and forged golf club heads
02/18/1992US5089065 Melt-quenched thin-film alloy for bonded magnets
02/12/1992CN1058620A Technology for smelting ferrosilicon by direct combustion of mirabilite
02/11/1992US5087415 High strength, high fracture toughness structural alloy
02/11/1992US5087414 Corrosion resistance
02/06/1992WO1992002027A1 Magnetic material
02/05/1992EP0470055A2 Process for the production of fire-resistant structural steel
02/05/1992EP0469803A1 Water-cooled rolls
02/05/1992EP0469560A1 High-strength, damage-resistant rail
02/05/1992EP0469115A1 Agent for improving the resistance to hydrogen cracking of low or medium alloy steels, a method for using said agent, and parts thereby obtained
02/04/1992US5086035 Mixed alkaline earth copper oxide coating with high density hafnia barrier layer
02/04/1992US5085829 Oxidation resistant fe-cr-al steel
02/04/1992US5085733 Rolling steel bearing
02/04/1992US5085715 Rapidly-quenching the alloy melt, compacting, plastically deforming and crushing
02/04/1992US5085714 Method of manufacturing a steel sheet
02/04/1992US5085712 Iron/copper/chromium alloy material for high-strength lead frame or pin grid array
01/1992
01/30/1992DE4124704A1 Heat formable untempered steel having good mechanical properties - useful for making machine parts, comprises carbon, silicon, manganese, chromium, molybdenum, aluminium, vanadium, niobium and iron
01/29/1992EP0468903A1 Method for obtaining powdered magnetic material of the rare earth-transition metal-boron type for corrosion resistant magnets
01/29/1992EP0468317A2 Method for the preparation of magnetic material based an the Sm-Fe-N substance system
01/29/1992CN1058238A Heat-resistant cast steel for cooling machine grate of cement kiln
01/28/1992US5084238 High strength heat-resistant low alloy steels
01/28/1992US5084116 Rolling contact element steel and rolling bearing made thereof
01/28/1992US5084112 Titanium and vanadium carbonitrides formed by continuous proce ssing with casting or blooming, hot rolling, pickling and cold rolling and annealing
01/28/1992US5084111 Iron-nickel alloy formed by melting a mixture of metals
01/28/1992US5084109 Working a metal alloy, heat treatment and quenching with cryst allization
01/28/1992US5083366 Thin ribbon of magnetic iron alloy; heat resistant layer of silica, silanol oligomer and ceramic particles; heat treatment
01/26/1992CA2046478A1 Method for obtaining in separate for a magnetic rare earth type material, transition metals and boron for corrosion resistant magnets
01/22/1992EP0467756A1 Austenitic steel having improved strength properties at high temperature, process for its manufacturing and the fabrication of mechanical parts, more particularly of valves
01/22/1992EP0467265A1 Process for producing ultrahigh silicon electrical thin steel sheet by cold rolling
01/22/1992EP0466988A2 Permanent magnet having improved corrosion resistance and method for producing the same
01/21/1992US5082745 Boron, neodymium, and iron alloy; protective coating
01/21/1992US5082510 Electrical steel sheets, hot and cold rolling, annealing
01/21/1992US5082433 Powder metallurgy; sintering and alloying of copper, molybdenum, iron and carbon; wear resistance
01/21/1992CA1294462C Wear resistant iron powder article
01/16/1992DE4109628A1 Composite piston for internal combustion engine - of aluminium alloy and precipitation hardening steel
01/15/1992EP0466246A1 Method of manufacturing an isotropic permanently magnetic material, isotropic permanently magnetic material and synthetic resin-bound isotropic permanent magnet
01/15/1992EP0465686A1 Oxidation- and corrosion resistant alloy for parts subjected to medium high temperatures and based on doped iron trialuminide Fe3Al
01/15/1992EP0438560A4 A ferrochromium alloy
01/15/1992CN1015295B Rare earth alloy powder and process for producing the same
01/14/1992US5081393 Nickel-iron-chromium alloy
01/14/1992US5080713 Hard alloy particle dispersion type wear resisting sintered ferro alloy and method of forming the same
01/10/1992WO1992016668A1 High-strength, cold-rolled steel sheet excellent in formability, hot-dip zinc coated high-strength cold rolled steel sheet, and method of manufacturing said sheets
01/09/1992WO1992000395A1 Iron-nickel alloy
01/08/1992EP0464780A1 Abrasion-resistant cast iron material for rolling rolls and composite rolls
01/08/1992CN1057680A Low-nickel electrothermal alloy with fine reproduction property
01/08/1992CN1057679A Steel for pumping rod and its technological process
01/07/1992US5078809 Method for producing cold-rolled steel sheet
01/02/1992EP0464019A1 Conductor roll
01/02/1992EP0464013A1 Steel and a steel manufacturing method
01/01/1992CN1057491A Wear-proof high-carbon chrome-manganese alloy and manufacturing method of its casting ball
01/01/1992CN1057490A Medium-carbon complex alloy steel and its production technology
12/1991
12/31/1991US5077140 Plasma spraying aluminum and nickel containing alloy
12/31/1991US5077003 Rolling-part steel and rolling part employing same
12/28/1991WO1992000393A1 Method of producing ultrafine high-strength, high-ductility steel wire
12/27/1991EP0462380A2 Method of producing high-strength cold-rolled steel sheet suitable for working
12/26/1991WO1991019825A1 Ultrahigh-silicon directional electrical steel sheet and production thereof
12/26/1991WO1991019821A1 Process for producing nondirectional electrical steel sheet excellent in magnetic properties after stress relieving annealing
12/26/1991WO1991019582A1 Iron-based powder, component produced therefrom, and method of producing the component
12/25/1991CN1015184B Self-lubricating iron-base wear-resistant alloy
12/25/1991CN1015183B Wear-resistant alloy
12/24/1991US5074934 Flexible hot rolled steel sheets having improved deep drawability
12/24/1991US5074932 Fine-crystalline iron-based alloy core for an interface transformer
12/24/1991US5074930 Method of making non-oriented electrical steel sheets
12/18/1991EP0461652A1 Flat spring hose clamp and manufacture of same
12/17/1991US5073338 Delayed fracture resistance and cold forgeability
12/17/1991US5073214 Magnetic material for a magnetic head
12/17/1991US5073211 Method for manufacturing steel article having high magnetic permeability and low coercive force
12/12/1991WO1991019300A1 Improved magnetic materials and process for producing the same
12/12/1991DE4107417A1 Austenitic steel alloy with high resistance to wear-out - comprise carbon, manganese silicon, chromium, titanium, aluminium, boron, phosphor, sulphur, iron etc.
12/11/1991EP0460591A1 High performance high strength low alloy steel
12/11/1991CN1056902A Maraging steel
12/10/1991US5072205 Wound magnetic core
12/10/1991US5071713 Metal fibers obtained by bundled drawing
12/10/1991US5071493 Rare earth-iron-boron-based permanent magnet
12/08/1991WO1991019014A1 Process for obtaining a high strength hard-drawn steel wire
12/08/1991CA2059631A1 Process for obtaining a high strength hard-drawn steel wire for making reinforcing cables for elastomeric articles such as tires and reinforcing elements
12/07/1991CA2033222A1 Method of making an abrasion resistant steel
12/06/1991CA2043836A1 High performance high strength low alloy steel
12/04/1991EP0459547A1 Precipitation-hardenable tool steel