Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120)
07/1998
07/23/1998WO1998031843A1 Method for making seamless tubing with a stable elastic limit at high application temperatures
07/23/1998DE19701443A1 Cold rolled steel sheet or strip with good formability used for car parts production
07/22/1998CN1188515A Steel sheet for two-piece battery can excellent in moldability, secondary work embrittlement resistance, and corrosion resistance
07/22/1998CN1188317A Process for manufacturing magnetic core made of nanocrystalline soft magnetic material
07/22/1998CN1188156A High hardness weldable wearproof casting alloy
07/22/1998CN1039246C Low-carbon and low-alloy structural steel without chromium and nickel
07/21/1998US5784681 Method of making a sintered article
07/21/1998US5783145 Iron-nickel alloy and cold-rolled strip with a cubic texture
07/21/1998US5783143 Alloy steel resistant to molten zinc
07/21/1998US5782999 Containing carbon, manganese, aluminum, nitrogen and niobium;excellent strength; automatic laundering machines
07/16/1998WO1998030727A1 Steam turbine rotor materials for high-temperature use
07/14/1998US5780175 Articles comprising magnetically soft thin films and methods for making such articles
07/14/1998US5780170 Sychronizing ring having a sintered friction coating
07/14/1998US5780165 Martensitic stainless steels; heat resistance, toughness, noncracking
07/14/1998US5779972 Heat resisting alloys, exhaust valves and knit meshes for catalyzer for exhaust gas
07/14/1998US5779822 Having a carbide phase produced by aging heat treatment of single crystal austenitic phase; nuclear reactor cores; nuclear fusion reactors; stress corrosion cracking resistance; high strength; durability
07/14/1998US5779821 Rotor for steam turbine and manufacturing method thereof
07/14/1998US5779820 Slow cooling hot, high chromium steel to between 950 degrees and 850 degrees celcius in a first phase, subsequent rapid cooling to between 650 degrees and 550 degrees celcius in second phase
07/14/1998US5779819 Grain oriented electrical steel having high volume resistivity
07/14/1998CA2124838C High strength hot rolled steel plates and sheets excellent in uniform elongation after cold working and process for producing the same
07/08/1998EP0852265A1 Magnetic shield material, production method thereof and color image tube assembling the material
07/08/1998CN1186872A Method for treating metal surface, rotary shaft for refrigerant compressor treated by method, vane for refriegerant compressor treated by method, and refrigerant compressor using the same
07/08/1998CN1186871A Wear resistant alloy steel and wear resistant steel ball made from said steel
07/08/1998CN1039036C Martensitic heat-resisting steel having excellent resistance to HAZ softening and process for producing the steel
07/08/1998CN1039035C Non-heat-treated hot-forging steel excellent in tensile, fatigue strength and machinability
07/08/1998CN1039034C Cold rolled steel sheet of excellent delayed fracture resistance and superhigh strength and method of manufacturing the same
07/08/1998CN1039033C Process for producing hot forging steel with excellent fatigue strength, yield strength and cuttability
07/07/1998US5776267 Spring steel with excellent resistance to hydrogen embrittlement and fatigue
07/02/1998WO1998028457A1 Thin steel plate of high rectangular tube drawability and method of manufacturing the same
07/02/1998WO1998028453A1 Process for the treatment of grain oriented silicon steel
07/02/1998WO1998028452A1 Process for the production of oriented-grain electrical steel sheet with high magnetic characteristics
07/02/1998WO1998028451A1 Process for the production of grain oriented silicon steel sheet
07/02/1998WO1998028450A1 High strength deep drawing steel developed by reaction with ammonia
07/02/1998DE19757359A1 Carbon steel for hot forged connecting rod
07/02/1998CA2250742A1 High strength deep drawing steel developed by reaction with ammonia
07/01/1998EP0851195A1 Tire roller for transporting slabs
07/01/1998EP0851039A1 Stainless steel wire and process for production
07/01/1998EP0851038A1 Steel and process for forming a steel article by cold plastic working
07/01/1998EP0851037A1 High-chromium and high-nickel alloy with hydrogen sulfide corrosion resistance
07/01/1998EP0850701A1 Method and installation for producing bars with a refined and/or compressed structure by roll forging
07/01/1998CN1038926C Apparatus for producing mineral wool
06/1998
06/30/1998US5772957 High strength steel composition having enhanced low temperature toughness
06/30/1998US5772956 High strength, ferritic heat-resistant steel having improved resistance to intermetallic compound precipitation-induced embrittlement
06/30/1998US5772795 Nitriding in annealing furnace; strengthening
06/30/1998CA2225782A1 Steel and process for manufacturing a steel part shaped by cold working
06/30/1998CA2116504C Process for manufacturing high-strength bainitic steel rails with excellent rolling-contact fatigue resistance
06/25/1998WO1998027242A1 High bearing-strength steel parts and processes for the production thereof
06/25/1998WO1998027234A2 Helical spring with high volumetric efficiency and method for the production thereof
06/24/1998EP0849434A2 Heat resisting steam turbine rotor
06/24/1998EP0849372A1 Low alloy construction steel having active particles
06/24/1998EP0849371A1 Non-oriented magnetical steel sheet
06/24/1998EP0849368A1 Shaped rolled product and method of making the same
06/24/1998CN1185813A Process for producing aluminum-killed steel free of cluster
06/24/1998CN1185359A Formed rolled piece and mfg. method thereof
06/24/1998CN1038855C Stainless steel for coins
06/23/1998US5769974 Process for improving magnetic performance in a free-machining ferritic stainless steel
06/23/1998US5769970 Steel for the manufacture of separable mechanical components and separable mechanical component
06/23/1998US5769969 Contains at least one element from the alkali and alkaline earth metals
06/23/1998US5769308 Welding material for use in hard-facing and method of determining components thereof
06/23/1998CA2014039C Flexible hot rolled steel sheets having improved deep drawability
06/18/1998WO1998026434A1 Display unit for use in a magnetic anti-theft system
06/17/1998EP0848397A1 Manufacturing process of a soft magnetic iron based alloy component with nanocristalline structure
06/17/1998EP0848072A1 An abrasion resistant valve seat made of sintered alloy for internal combustion engines
06/17/1998EP0848069A2 Process for manufacturing corrosion resistant steel bottles or vessels
06/17/1998CN1185182A Martensitic stainless steel having high mechanical strength and corrosion resistance and relative mfd. articles
06/17/1998CN1185012A Process for mfg. magnetic component made of iron-based soft magnetic alloy having nanocrys talline structure
06/17/1998CN1038795C 3 : 29 phase rare-earth iron nitride permanent magent, and the prepn. method
06/16/1998US5766381 Method of producing bainitic steel materials having a less scattering of properties
06/16/1998US5766376 High-strength ferritic heat-resistant steel and method of producing the same
06/16/1998US5766375 Non-oriented magnetic steel sheet having excellent bending workability
06/11/1998WO1998025280A1 Process for the production of magnet
06/11/1998WO1998024942A1 Steel sheet for double wound pipe and method of producing the pipe
06/11/1998WO1998024941A1 Iron-based powder
06/10/1998EP0846778A1 Melting of nickel laterite and sulfur-bearing Ni concentrate in making Ni-alloyed iron and stainless steel
06/10/1998EP0846522A2 Alumino-thermic mixture
06/10/1998EP0846521A2 Material for use in the manufacture of a catalytic converter
06/10/1998EP0846443A1 Non-magnetic stainless steel surgical needle
06/10/1998EP0846189A1 Iron-based shape memory and vibration damping alloys containing nitrogen
06/10/1998EP0750686B1 Corrosion and wear-resistant chill casting
06/10/1998CN1184508A Cavitation erosion resistant steel
06/10/1998CN1184321A Apparatus for manufacturing permanent magnet
06/09/1998US5762725 Steel for the manufacture of forging having a bainitic structure and process for manufacturing a forging
06/04/1998WO1998023785A1 High-strength steel plate having high dynamic deformation resistance and method of manufacturing the same
06/04/1998WO1998023784A1 Steel having excellent machinability and machined component
06/04/1998DE19742197A1 Manufacturing device for anisotropic permanent magnet
06/04/1998CA2222840A1 Aluminothermic mixture
06/04/1998CA2221644A1 Recovering ni units for stainless steel by sequentially smelting ni laterite and ni sulfite concentrate in an iron bath
06/03/1998EP0845544A1 Steel product made from bainitic steel and process for making the steel product
06/03/1998EP0845050A1 Product used to guide a hot oxidizing gas
06/03/1998CN1183478A Excellent machining property steel and sheet steel by electric furnace-vacuum degasifying process, and mfg. method thereof
06/02/1998US5759308 Iron alloys tempered by heating to precipitate crystals for tensile strength
06/02/1998US5759306 Method for making a steel sheet suitable as a material for can making
06/02/1998US5759304 Process for producing hot rolled steel strip with adjusted strength
06/02/1998US5759299 Steels with bainite structure
06/02/1998US5759297 Smelting, casting, hot rolling, slow cooling and quenching; 75% of ferrite is hardened by precipitation of titanium or titanium and niobium carbides or carbonitrides, remainder comprising marteniste, possiblly bainite and austenite
06/02/1998US5759294 Process for the production of grain oriented magnetic steel sheets having improved remagnetization losses
06/02/1998US5759227 Iron alloys for wear resistant valves
06/02/1998US5758696 Iron, nickel, chromium, martensite with strain-induced microstructure
05/1998
05/28/1998WO1998022255A1 Wire for welding high-chromium steel
05/28/1998WO1998022248A1 Method of bonding two-phase stainless steel