Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
12/2002
12/03/2002US6488786 High-strength, high-toughness martensitic stainless steel sheet
12/03/2002US6488784 Process for the production of grain oriented electrical steel strips
12/03/2002CA2257472C Method and apparatus for the manufacture of a steel strip
11/2002
11/27/2002EP1260601A1 Corrosion resistant steel
11/27/2002EP1260598A1 Steel sheet and process and equipment for producing the same
11/27/2002CN1382224A Method of producing ultra-fine grain structure for unalloyed or low-alloyed steel
11/27/2002CN1094982C Process for inhibition control in p roduction of grain-oriented electrical sheets
11/27/2002CN1094981C Method for manufacturing high magnetic flux density oriented electric steel plate of low iron loss
11/26/2002US6485585 Plastically deforming a cold-worked alloy sheet; pre-straining and thermal recrystallization processes for maximizing formability in alloys of aluminum, magnesium, iron and titanium
11/26/2002CA2201166C A method of preparing a steel pipe, an apparatus thereof and a steel pipe
11/21/2002WO2002092869A1 Ferritic stainless steal and martensitic stainless steel both being excellent in machinability
11/21/2002WO2002092867A1 Ferritic stainless steel strip excellent in freeze of shape formed by working
11/21/2002WO2002092250A1 Heat-treated deformed steel wire, and method and apparatus for manufacturing the same
11/21/2002WO2002031844A3 Co-mn-fe soft magnetic alloys
11/21/2002US20020172613 Fe-cr-al based alloy foil and method for producing the same
11/21/2002US20020170637 High strength, high toughness, seamless steel pipe for line pipe
11/21/2002US20020170636 For torsionally-strained spring elements; heating at a rate of at least 50 K/s and austenitizing, at least one forming step; quenching to below the martensite temperature and then tempering
11/20/2002EP1257414A1 Use of a dimensionally stable iron-chrome-aluminum film
11/20/2002CN1380912A Steel sheet for heat shrink band
11/20/2002CN1380911A Non-refined steel being reduced in anisotropy of material and excellent in strength, toughness and machinability, and its making method
11/20/2002CN1380909A Hot rolled steel plate, cold rolled steel plate and hot dip galvanized steel plate being excellent in strain aging hardening characteristics and method for their production
11/20/2002CN1380437A Method for strengthening metal material tissue and metal blank
11/20/2002CN1380150A Fine processing property soft stainless steel
11/20/2002CN1094523C Electrical sheet of excellent magnetic characteristics and method of mfg. same
11/19/2002US6482271 Laser beams form fine closures; marks of laser irradiation on surface; excellent magnetic properties
11/14/2002WO2002090603A1 Method for producing a high permeability grain oriented electrical steel
11/14/2002WO2002077299A3 Method for producing semifinished products from metals and alloys of a pseudopowder metallurgy
11/13/2002EP1255873A1 Maraging type spring steel
11/12/2002US6478901 Aluminum-killed low-carbon steel sheet for containers and method for its preparation
11/12/2002US6478900 Method of forging precipitation hardening type stainless steel
11/12/2002US6478892 Low iron loss non-oriented electrical steel sheet excellent in workability and method for producing the same
11/12/2002CA2182813C Method of making dual phase steel plate
11/07/2002WO2002088424A1 Unidirectional silicon steel sheet excellent in adhesion of insulating coating film imparting tensile force
11/07/2002WO2002088411A1 High manganese duplex stainless steel having superior hot workabilities and method for manufacturing thereof
11/07/2002WO2002088410A1 Metal gasket and its law material and methods for production of them
11/07/2002WO2002088403A1 Method for producing unidirectional silicon steel sheet free of inorganic mineral coating film
11/07/2002WO2002044429A3 Bainite blades
11/07/2002US20020162614 Steel for plastic molds and process for their heat treatment
11/07/2002US20020162613 For use as a raw material for automotive parts such as chassis and suspension systems
11/07/2002DE10062310C2 Verfahren zur Behandlung metallischer Werkstoffe Method for the treatment of metallic materials
11/06/2002EP1254275A1 STEEL PLATE TO BE PRECIPITATING TiN + ZrN FOR WELDED STRUCTURES, METHOD FOR MANUFACTURING THE SAME AND WELDING FABRIC USING THE SAME
11/06/2002EP1254274A1 Advanced alloy fiber and process of making
11/06/2002EP1253961A1 Detectable stainless steel needles for meat packing
11/06/2002CN1093885C Method of making Cr alloy workpieces and its use
11/05/2002US6475309 Rolling bearing steel having a surface with a lower bainitic structure and a method for the production thereof
11/05/2002US6475308 Process for the production of a strip of hot rolled steel of very high strength, usable for shaping and particularly for stamping
11/05/2002US6475307 Method for fabricating vehicle components and new use of a precipitation hardenable martensitic stainless steel
11/05/2002US6475306 Hot rolled steel wire rod or bar for machine structural use and method for producing the same
11/05/2002US6475304 Cold and hot rolled steel sheet; annealing forms chromium spinel oxide layer under surface and forsterite coating on surface
10/2002
10/31/2002WO2002086172A1 Method of producing stainless steels having improved corrosion resistance
10/31/2002US20020160221 Hot-dip galvanized steel sheet
10/31/2002US20020157740 Method for the treatment of metallic materials
10/31/2002US20020157734 Hot rolling steel slab to form a hot rolled sheet; forming a steel sheet with a final sheet thickness form hot rolled sheet by annealing, and cold rolling the hot rolled sheet, decarburization annealing the sheet, finishing annealing
10/30/2002EP1253212A1 Material for tension type color-selective device for color cathode-ray tube and method of producing same
10/30/2002EP1253209A2 Steel sheet with good forming properties and method for producing the same
10/30/2002CN1376807A Color kinescope
10/29/2002US6471787 Process for the production of oriented-grain electrical steel sheet with high magnetic characteristics
10/29/2002US6471407 Rolling bearing unit for supporting wheel
10/24/2002WO2002083982A1 Electrical sheet having insulating coating and insulating coating
10/24/2002WO2002083959A1 Steel material prodction method
10/24/2002US20020153070 For use as steering shaft and a drive shaft of automobiles
10/24/2002US20020153063 Non-oriented electrical steel sheet with ultra-high magnetic flux density and production method thereof
10/23/2002EP1109941B1 Method for annealing an amorphous alloy and method for manufacturing a marker
10/23/2002CN1376209A Method for making carbon steel bands, in particular packaging steel bands, and resulting bands
10/17/2002WO2002081766A1 Steel and steel tube for high-temperature use
10/17/2002WO2002081765A1 Grain oriented electromagnetic steel sheet exhibiting extremely small watt loss and method for producing the same
10/17/2002US20020150497 Use of alloy steel for making high-strength, seamless steel tubes
10/17/2002US20020148538 Lowering the corrosion rate at low temperatures and low concentrations of sulfuric acid by using the proper amount of copper and cobalt; controlling the atomic ratio of copper and cobalt; preheaters of thermoelectric power plants
10/17/2002US20020148536 Ferritic grains having a low density region with a low precipitate density of nickel or titanium in the vicinity of grain boundary; press-forming giving a reduced press-rejection rate; automobiles, appliances, construction
10/17/2002DE10208855A1 Hochfeste Legierung mit geringer thermischer Ausdehnung und verbesserten Torsionseigenschaften sowie Draht aus der genannten Legierung High strength alloy with low thermal expansion and improved torsion and wire from said alloy
10/16/2002EP1249513A1 A soft stainless steel sheet excellent in workability
10/16/2002CN1092714C Steel plates for drum cans, its producing method, and drum can
10/15/2002US6464927 Method and apparatus for in-line heat treatment of hot rolled stock
10/15/2002US6464807 Production method of ultra fine grain steel
10/15/2002US6464802 Heat-affected-zone (haz) toughness and hot workability; low carbon, seamless
10/10/2002WO2002079534A1 Ultra-high-strength precipitation-hardenable stainless steel and elongated strip made therefrom
10/10/2002WO2002079526A1 High strength steel tube for air bag and method for production thereof
10/10/2002WO2002078764A1 Platinum - stainless steel alloy and radiopaque stents
10/10/2002WO2002078763A1 Radiopaque alloy stent
10/10/2002US20020144756 Ferritic stainless steel plate and method
10/10/2002US20020144755 Steel sheet for porcelain enamel excellent in forming property, aging property and enameling characteristics and method for porducing the same
10/09/2002EP1247871A2 Process for producing highly ductile black plate and use of a steel
10/09/2002EP1114199B1 Steel for making a ball bearing part
10/09/2002CN1373230A Process for fining ferrite grains of low-carbon steel
10/08/2002US6461741 Grain-oriented electromagnetic steel sheet with excellent coating properties and process for its manufacture
10/08/2002US6461452 Free-machining, martensitic, precipitation-hardenable stainless steel
10/03/2002WO2002077310A1 High strength and high ductility steel plate having hyperfine crystal grain structure produced by subjecting ordinary low carbon steel to low strain working and annealing, and method for production thereof
10/03/2002WO2002077299A2 Method for producing semifinished products from metals and alloys of a pseudopowder metallurgy
10/03/2002US20020141897 Chromium alloy workpiece is cold worked and, by means of the cold working, is brought to a yield strength of at least 1000 MPa
10/03/2002US20020139450 Fastening a panel periphery of a color cathode ray tube
10/03/2002US20020139444 Grain-oriented electrical steel sheet excellent in film characteristics and magnetic characteristics, process for producing same, and decarburization annealing facility used in same process
10/02/2002EP1021581A4 Pipeline distribution network systems for transportation of liquefied natural gas
10/01/2002US6458226 Process for the thermomechanical treatment of steel
10/01/2002US6458221 Ferritic stainless steel plate
09/2002
09/26/2002WO2002074460A1 Hot rolling mill and hot rolling method
09/26/2002US20020136661 Ferritic stainless steel sheet with excellent workability and method for making the same
09/26/2002US20020134472 Method for heat-treating profiled rolling stock
09/26/2002US20020134469 Process for manufacturing a strip made of an Fe-Ni alloy
09/26/2002US20020134466 Silicon steel sheet and method for producing the same
09/26/2002US20020134300 Method of depositing buffer layers on biaxially textured metal substrates