Patents for C21D 6 - Heat treatment of ferrous alloys (4,815)
03/1998
03/11/1998EP0828010A2 High strength and high-toughness heat-resistant cast steel
03/04/1998EP0826786A1 Magnetostrictive material and process for preparing the same
03/04/1998EP0742841A4 Method of making dual phase steel plate
03/04/1998EP0625586B1 Structural member and process for producing the same
03/04/1998CN1174890A Heat treatment method for iron-base ultramicaolith iron core
02/1998
02/25/1998EP0824755A1 High strength iron-cobalt-vanadium alloy article
02/25/1998CN1037534C Alloy with ultrafine crystal grains excellent in corrosion resistance
02/19/1998WO1997048831A3 Method for processing billets from multiphase alloys and the article
02/18/1998CN1173549A Parts of loom and loom using the same
02/10/1998US5716468 Process for producing high-and low-pressure integral-type turbine rotor
02/10/1998US5716466 Stainless steel wire product
02/10/1998US5716252 Method of manufacturing a shadow mask of the nickel-iron type
02/04/1998CN1172505A Dual-phase high strength steel sheet with good toughness and weldability
02/03/1998US5714116 Steel and process for the manufacture of components having high abrasion resistance
01/1998
01/28/1998EP0820530A1 Screwdriver, screwdriver bit or similar device
01/28/1998EP0820529A1 Method of manufacturing hot-worked elongated products, in particular bar or pipe, from high-alloy or hypereutectoid steel
01/21/1998CN1170764A Process for production of steel component
01/14/1998EP0628087B1 Method for continuous recrystallization annealing of a steel strip
01/08/1998WO1998000821A1 Annealing magnetic elements for stable magnetic properties
01/08/1998WO1998000820A1 Semi-hard magnetic elements formed by annealing and controlled oxidation of soft magnetic material
01/08/1998DE19626833A1 Case nitriding stainless steel with controlled stabiliser contents
12/1997
12/31/1997WO1997050099A1 Metallic glass alloys for mechanically resonant marker surveillance systems
12/31/1997CN1169164A Ferritic heat-resistant steel having excellent high temp. strength and process for producing same
12/31/1997CA2259319A1 Metallic glass alloys for mechanically resonant marker surveillance systems
12/24/1997WO1997048831A2 Method for processing billets from multiphase alloys and the article
12/24/1997WO1997048509A1 Method for producing axially symmetric parts and the article
12/24/1997CN1168700A Ultra-high strength secondary hardening steels with excellent toughness and weldability and method thereof
12/17/1997EP0812365A1 Methods for annealing and pickling high manganic cold rolled steel sheet
12/10/1997EP0811698A1 Method of cooling a steel pipe
12/10/1997CN1036664C Method for making iron, copper, silicon and boron series ultramicro-crystal alloy
12/09/1997US5695666 Method of welding neutron irradiated metallic material
12/03/1997EP0810295A1 Stainless steel for ozone added water and manufacturing method thereof
11/1997
11/26/1997EP0808909A1 A process for production of a steel component
11/25/1997US5690757 Cold rolling, annealing; drawing; pulling tension
11/19/1997CN1165205A Process for production of body of material stable at high temperatures from iron-nickel superalloy
11/11/1997US5685921 Method of preparing a magnetic article from a duplex ferromagnetic alloy
11/05/1997EP0804622A1 Method for heat treatment of steel, and products of steel
10/1997
10/30/1997WO1997040204A1 Stainless steel alloy for pulp refiner plate
10/30/1997DE19713701A1 Development of compressive residual stresses in corrosion resistant steels and superalloys
10/23/1997WO1997039158A1 Martensitic-austentitic steel
10/23/1997CA2251805A1 Martensitic-austentitic steel
10/22/1997CN1162982A Bake hardenable vanadium containing steel
10/16/1997DE19614407A1 Martensitisch-austenitischer Stahl Martensitic-austenitic steel
09/1997
09/30/1997US5672218 Straightening bar between rollers, machining to remove hardened surface layer, rolling again at lower pressure
09/30/1997US5672217 Method for producing machine elements of steel
09/24/1997EP0796352A1 Ultra-high strength steels and method thereof
09/17/1997EP0763142A4 Iron-chromium-boron alloy for glass manufacturing tools
09/10/1997EP0794262A1 A temperature-raising bainite forming process
09/10/1997EP0793733A1 A cylinder member and nickel-based facing alloys
09/10/1997CN1159213A Martensitic stainless steel having excellent hot workability and sulfide stress cracking resistance
09/03/1997EP0792379A1 Dual-phase steel and method thereof
09/03/1997CN1158363A Stainless steel improved in anti-microbial property and manufacturing thereof
08/1997
08/27/1997EP0791081A2 Bake hardenable vanadium containing steel
08/26/1997US5660648 Cooling in air; aging
08/21/1997WO1997029879A1 Cutting die and method of forming
08/21/1997WO1997029878A1 Cutting die and method of making
08/21/1997CA2245866A1 Cutting die and method of making
08/20/1997EP0789785A1 Ferritic heat-resistant steel having excellent high temperature strength and process for producing the same
08/20/1997CN1157332A Iron-nickel superalloy of type in 706
08/13/1997EP0789089A1 High-nickel austenitic stainless steel resistant to degradation caused by neutron irradiation
08/07/1997WO1997028286A1 Method of preparing a magnetic article from a duplex ferromagnetic alloy
08/07/1997CA2243502A1 Method of preparing a magnetic article from a duplex ferromagnetic alloy
08/05/1997US5653826 High strength dual phase steel plate with superior toughness and weldability
08/05/1997US5653824 Magnetic strips and methods for making the same
07/1997
07/31/1997WO1997027340A1 Process for improving the tape tension on the surface of a chrome-steel tape drive spindle
07/29/1997US5651842 High toughness high-speed steel member and manufacturing method
07/23/1997EP0785285A1 Method for producing high tensile strength stainless steel
07/22/1997US5650024 Martensitic heat-resisting steel excellent in HAZ-softening resistance and process for producing the same
07/17/1997CA2195163A1 Process for producing dual phase ferritic stainless steel strip
07/10/1997WO1997024467A1 Methods for annealing and pickling high manganic cold rolled steel sheet
07/01/1997US5643697 Metal foils with preforations treated with heat
06/1997
06/25/1997CN1152625A Oil tempering steel wire and making method thereof
06/18/1997EP0779374A1 Stainless steel improved in anti-microbial property and manufacturing thereof
06/12/1997WO1997020960A1 Magnetostrictive material and process for preparing the same
06/12/1997DE19650710A1 Magnetic composite body with ferromagnetic section and weak or non-magnetic section e.g. for car fuel or oil control device
06/10/1997US5637158 Method for the manufacture of an expansible anchor consisting of corrosion-resistant steel
06/03/1997US5634990 Fe-Mn vibration damping alloy steel and a method for making the same
06/03/1997US5634987 Magnetic materials and method of making them
05/1997
05/27/1997US5632826 Quasicrystalline precipitation hardened metal alloy and method of making
05/21/1997EP0774530A1 Process for producing a heat resistant part from an iron-nickel superalloy
05/21/1997EP0774526A1 Iron-nickel superalloy of the IN 706 type
05/20/1997US5630983 Precipitation hardening stainless steels
05/15/1997WO1997017197A1 Stainless steel surface claddings of continuous caster rolls
05/15/1997DE19606817A1 Maraging steel having good corrosion resistance
05/14/1997EP0773307A1 High-strength corrosion-resistant maraging alloy
05/07/1997EP0771366A1 Martensitic stainless steel having excellent hot workability and sulfide stress cracking resistance
05/07/1997CN1149322A Iron-chromium-boron alloy for glass manufacturing tools
05/06/1997US5628045 Process and device for producing sintered parts
05/06/1997US5628044 Pure iron-zinc intermetallic galvanneal calibration standards
05/06/1997US5626694 Process for the production of stainless steel sheets having an excellent corrosion resistance
05/02/1997EP0770696A1 High-strength and high-toughness heat-resisting steel
04/1997
04/30/1997CN1034745C Method for nitriding austenitic stainless steel products
04/10/1997WO1997013258A1 Heat-treatment of glassy metal alloy for article surveillance system markers
03/1997
03/19/1997EP0763142A1 Iron-chromium-boron alloy for glass manufacturing tools
03/18/1997US5611872 Magnetic strips and methods for making the same
03/18/1997US5611871 Method of producing nanocrystalline alloy having high permeability
03/13/1997WO1997009456A1 High-nickel austenitic stainless steel resistant to degradation caused by neutron irradiation
03/12/1997EP0761283A1 Column packing materials and process for making it
03/12/1997CN1034248C Fe-Ni based soft magnetic alloys having nanocrystalline structure
03/05/1997CN1034184C Method for improving middle-temp. protracted properties of as-cast Fe3Al intermetallics alloy
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