Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120)
08/1999
08/10/1999US5936170 Carbon, chromium, nickel, molybdenum, boron, iron, manganese sulfide; corrosion resistance, machinability
08/10/1999US5936169 Corrosion resistant, high vanadium, powder metallurgy tool steel articles with improved metal to metal wear resistance and a method for producing the same
08/10/1999CA1340701C Method of preparing oxidation resistant iron base alloy compositions
08/10/1999CA1340700C Oxidation resistant iron base alloy compositions
08/05/1999WO1999039358A1 Soft magnetic nickel-iron alloy with low coercive field strength, high permeability and improved resistance to corrosion
08/05/1999WO1999039018A1 Steel and method for making cleavable mechanical parts
08/05/1999WO1999039017A1 Advanced case carburizing secondary hardening steels
08/04/1999EP0933443A1 Use of steel powder based on Fe-Cr-Si for corrosion resistant coatings
08/04/1999EP0933440A1 Case hardened steel excellent in the prevention of coarsening of particles during carburizing thereof, method of manufacturing the same, and raw shaped material for carburized parts
08/04/1999CN1225141A Hot-rolled steel strip and method of making it
08/04/1999CN1224910A Electrode arrangement of vacuum circuit breaker with magnetic member for longitudinal magnetization
08/04/1999CN1224769A Making process of microalloyed plastic-mould steel
08/04/1999CN1044496C Assembly guide board for multiple high chromium cast steel mill and manufacture method thereof
08/04/1999CN1044495C High-aluminium Austenic heat resistant steel
08/04/1999CN1044494C Corrosion and wear-resistant chill casting and its application
07/1999
07/29/1999WO1999037424A1 Steel powder for the preparation of sintered products
07/28/1999EP0931845A1 Material for gas turbine disk
07/28/1999EP0931844A1 Cobalt-free maraging steel
07/28/1999EP0931226A2 Composite material with a high proportion of intermetallic phases, preferably for friction bodies
07/28/1999EP0674014B1 Non-heat-treated hot-forging steel excellent in tensile strength, fatigue strength and machinability
07/28/1999EP0614495B1 Use of a steel alloy for reinforcement tubes of side doors of private cars
07/28/1999EP0612857B1 Ferrite single phase cold rolled steel sheet or fused zinc plated steel sheet for cold non-ageing deep drawing and method for manufacturing the same
07/28/1999CN1224071A Cold rolled steel sheet for shadow mask made by low-temperature annealing and manufacturing method therefor
07/28/1999CN1224070A Non-ridging ferritic chromium alloyed steel
07/27/1999US5930582 Compression molding in a magnetic field a comminuted powder blend of base alloy and lower melting auxiliary alloy, sintering
07/27/1999US5928442 Medium/high carbon low alloy steel for warm/cold forming
07/27/1999CA1340687C Sintered fe-co type magnetic materials and production process thereof
07/22/1999WO1999036584A1 Free-machining martensitic stainless steel
07/22/1999WO1999036583A1 Bainite type rail excellent in surface fatigue damage resistance and wear resistance
07/22/1999CA2318408A1 Free-machining martensitic stainless steel
07/21/1999EP0930375A1 Ferritic stainless steel plate of high deep drawability and ridging resistance and method of manufacturing the same
07/21/1999EP0930374A1 Production of cold working tool steel
07/21/1999EP0930127A1 Welding materials for high-Cr steels
07/21/1999EP0929883A1 Display element for use in a magnetic anti-theft system
07/21/1999CN1223182A Method for making Nd-Fe-B series permanent magnet by using leftover bits and pieces of material
07/21/1999CN1044263C Highly corrosion-resistant martensitic stainless steel with excellent weldability and process for producing the same
07/21/1999CN1044262C Cavitation resistant fluid impellers and method of making same
07/21/1999CN1044261C Process for smelting duriron with raw coal
07/20/1999CA2135035C Spring steel of high strength and high corrosion resistance
07/15/1999WO1999035303A1 Razor steel alloy
07/15/1999WO1999035298A1 Pipe joint made of shape memory stainless steel
07/14/1999EP0928921A1 Profile clamp and manufacturing method
07/14/1999EP0928835A1 Universal alloy steel
07/14/1999EP0914479A4 Steel for enameling and method of making it
07/14/1999EP0620289B1 High-strength hot-rolled steel sheet excellent in uniform elongation after cold working and process for producing the same
07/14/1999CN1222942A Use of steel for cutting tool holders
07/14/1999CN1222941A Low heat expansion alloy
07/14/1999CN1222583A Austenitic stainless steel with good oxidation resistance
07/14/1999CN1044139C High strength, high weldability steel bar and wires for prestressed concrete
07/13/1999US5922149 Heat treatment is performed including quenching of the shaping wire to obtain a hardness and predominant martensitic and bainitic steel structure with a small amount of ferrite; hydrogen sulfide corrosion resistance
07/13/1999US5922145 Suitable for industrial steel parts for a variety of machinery such as automobiles, construction machinery, crankshafts, rods and gears
07/13/1999US5922143 Manufacturing amorphous ribbon from magnetic alloy; determining annelaing temperature; annealing core blank manufactured from ribbon to form nanocrystals
07/13/1999CA2165820C High-strength steel sheet suitable for deep drawing and process for producing the same
07/13/1999CA2164579C Lowly decarburizable spring steel
07/08/1999DE19821797C1 Hardened steel parts used for roller bearing parts
07/07/1999CN1222105A Powder metallurgical body with compacted surface
07/06/1999US5919578 Friction welded product and method for manufacturing thereof
07/06/1999US5919415 Steel and process for the manufacture of a steel component formed by cold plastic deformation
07/06/1999US5919319 Iron-cobalt alloy, process for manufacturing a strip made of iron-cobalt alloy, and strip obtained
07/06/1999US5918719 Tire roller for transporting slabs
07/01/1999WO1999032837A1 Process components, containers, and pipes suitable for containing and transporting cryogenic temperature fluids
07/01/1999WO1999032682A1 Austenitic stainless steel including columbium
07/01/1999WO1999032672A1 Ultra-high strength steels with excellent cryogenic temperature toughness
07/01/1999WO1999032671A1 Ultra-high strength dual phase steels with excellent cryogenic temperature toughness
07/01/1999WO1999032670A1 Ultra-high strength ausaged steels with excellent cryogenic temperature toughness
07/01/1999CA2316332A1 Austenitic stainless steel including columbium
06/1999
06/30/1999EP0926249A1 Inorganic/organic insulating coating for non-oriented electrical steel
06/30/1999EP0925380A1 Method for manufacturing self-hardening steel wire, reinforcing wire and application to a flexible duct
06/30/1999EP0925379A1 Age hardenable alloy with a unique combination of very high strength and good toughness
06/30/1999EP0925376A1 Process for the production of grain oriented electrical steel strip starting from thin slabs
06/30/1999CN1221513A Bonded magnet with low losses and easy saturation
06/30/1999CN1221039A Heat-resistant nitride dispersion strengthened alloys
06/30/1999CN1043905C Continuously annealed and cold rolled steel sheet and method for manufacturing the same
06/30/1999CN1043904C Steel sheet of high stress-corrosion-cracking resistance for cans and method of manufacturing the same
06/29/1999US5918293 Iron based powder containing Mo, P and C
06/29/1999US5916517 Nitrogen-bearing iron-based alloy for machine parts subject to sliding friction
06/29/1999US5916380 Press-blanked part of an electron gun which includes press-blanked aperture for passing electron beam; improved blanking property and suitable for electrode material of electron gun
06/29/1999US5916376 Qenching a melting alloy containing atleast 50% samarium rare earth element, iron or iron and cobalt, zirconium or partially replaced with other elements, heat treating in vacuum, nitriding the heat treated alloy; crystal structure
06/24/1999WO1999031365A1 Gas turbine for power generation, and combined power generation system
06/24/1999WO1999031288A1 Improved hardness, strength, and fracture toughness steel
06/24/1999WO1999031282A1 Cold drawn wire and method for the manufacturing of such wire
06/23/1999EP0924729A2 Electrode arrangement of vacuum circuit breaker with magnetic member for longitudinal magnetization
06/23/1999EP0924717A2 Rare earth-iron-boron permanent magnet and method for the preparation thereof
06/23/1999EP0924716A2 Rare earth-based permanent magnet material and method for the preparation thereof
06/23/1999EP0924440A2 Forged connecting rod of carbon steel for piston engines with breaking separated bearing sap
06/23/1999EP0924313A1 Non-ridging ferritic chromium alloyed steel
06/23/1999EP0923781A1 METHOD FOR THE MANUFACTURE OF A RARE EARTH ELEMENT (SE)-Fe-B PERMANENT MAGNET
06/23/1999EP0923780A1 RARE EARTH ELEMENT (SE)-Fe-B PERMANENT MAGNET AND METHOD FOR THE MANUFACTURE THEREOF
06/23/1999EP0923779A1 RARE EARTH ELEMENT (SE)-Fe-B PERMANENT MAGNET AND METHOD FOR THE MANUFACTURE THEREOF
06/23/1999CN1220706A Polishing-finished stainless steel sheet having excellent stain removability, and production method thereof
06/23/1999CN1220704A Method for making electric sheet steel with oriented grains for manufacture of transfermer magnetic circuits in particular
06/23/1999CN1220320A Sulfur-bearing iron-based high temp self-lubricating wear-resisting alloy and its preparing method
06/22/1999US5914061 High workability welding wire
06/22/1999US5913988 Out of gauge resistant railroad wheel
06/16/1999EP0922783A1 Non-tempered steel for mechanical structure
06/16/1999EP0922782A1 High-strength high-workability cold rolled steel sheet having excellent impact resistance
06/16/1999EP0922119A1 Process for the production of grain oriented electrical steel strip having high magnetic characteristics, starting from thin slabs
06/16/1999CN1219977A Process for producing grain-orientated magnetic steel sheet
06/16/1999CN1043670C Nanocrystalline alloy having excellent pulse attenuation characteristics, its use and method of producing same
06/16/1999CN1043663C Precipitation hardened ferrous alloy with quasicrystalline precipitates