Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
02/1999
02/18/1999WO1999007902A1 Metallurgical method for processing nickel- and iron-based superalloys
02/18/1999DE19735062A1 Grain oriented electrical steel sheet production
02/17/1999EP0897016A1 Grain-oriented electrical steel sheet having excellent magnetic characteristics, its manufacturing method and its manufacturing device
02/17/1999CN1207965A Method and equipment for rolling hot-rolling wide strip steel in small sized strip steel production equipment
02/17/1999CN1042148C PC steel wire or steel bar with good straightness and forging characters
02/16/1999US5871851 Magnetic shielding material for television cathode-ray tube and process for producing the same
02/16/1999CA2151500C Thermomechanical processing of metallic materials
02/11/1999WO1999006977A1 Display element for use in a magnetic anti-theft system
02/11/1999WO1999006602A1 Austenitic stainless steel strips having good weldability as cast
02/10/1999EP0896069A1 Method of making thin ultra-low-carbon steel strip for manufacturing deep-drawn products for packages and thin strips obtained thereby
02/10/1999EP0828862B1 Martensitic stainless steel having high mechanical strength and corrosion resistance and relative manufactured articles
02/09/1999US5868875 A chromium alloyed steel melt is deoxidized with titanium and nitrogen and continuously cast into a strip or a slab having an as-cast fine equiaxed microstructure substantially free of columnar grains
02/04/1999WO1999005337A1 Thermomechanically controlled processed high strength weathering steel with low yield/tensile ratio
02/04/1999WO1999005336A1 Ultra-high strength, weldable, boron-containing steels with superior toughness
02/04/1999WO1999005335A1 Ultra-high strength, weldable steels with excellent ultra-low temperature toughness
02/04/1999WO1999005333A1 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
02/04/1999WO1999005328A1 Method for producing ultra-high strength, weldable steels with superior toughness
02/04/1999DE19733135A1 Producing an article of two constituent components
02/04/1999DE19732872A1 Anzeigeelement für die Verwendung in einem magnetischen Diebstahlsicherungssystem Display element for use in a magnetic anti-theft system
02/04/1999CA2273267A1 Thermomechanically controlled processed high strength weathering steel with low yield/tensile ratio
02/03/1999EP0894149A1 Method for producing a hot-rolled high-tensile steel strip
02/03/1999CN1207143A Method for manufacturing high strength and high formability hot-rolled transformation induced plasticity steel containing copper
02/03/1999CN1207142A Steel sheet for double wound pipe and method of producing the pipe
02/02/1999US5865907 Composite magnetic member, process for producing the member and electromagnetic valve using the member
01/1999
01/26/1999US5863361 Water cooling reverse hot rolled austenitic steel sheet to a specific transformation temperature and then air cooling sheet on a short runout table while most of the austenite to ferrite transformation occurs, subsequently coiling
01/26/1999US5863356 Method for producing electric sheets with a glass coating
01/21/1999WO1999002747A1 Ultra high strength, secondary hardening steels with superior toughness and weldability
01/21/1999WO1999002742A2 Method for manufacturing high magnetic flux density grain oriented electrical steel sheet based on low temperature slab heating method
01/20/1999EP0892072A1 Grain-oriented electrical steel sheet excellent in magnetic characteristics and production process for same
01/19/1999US5861068 Method of using stainless steel having anti-microbial property
01/13/1999EP0889762A1 Method and arrangement for producing hot-rolled steel strip
01/12/1999US5858556 Surgical stents
01/12/1999US5858135 Method for cold rolling and annealing strip cast stainless steel strip
01/12/1999US5858128 High chromium martensitic steel pipe having excellent pitting resistance and method of manufacturing
01/12/1999US5858126 Comprising fine secondary recrystallized grains in secondary recrystallization matrix
01/12/1999CA2107372C Method for producing regular grain oriented electrical steel using a single stage cold reduction
01/07/1999WO1999000525A1 Ultrafine-grain steel pipe and process for manufacturing the same
01/05/1999US5855699 Corrosion, heat resistant alloy
01/05/1999US5855696 Ultra low carbon, cold rolled steel sheet and galvanized steel sheet having improved fatigue properties and processes for producing the same
01/05/1999US5855694 Method for producing grain-oriented silicon steel sheet
01/05/1999CA2059712C Galvanized high-strength steel sheet having low yield ratio and method of producing the same
12/1998
12/30/1998WO1998059084A1 Pipeline distribution network systems for transportation of liquefied natural gas
12/30/1998EP0720664B1 Method of treating at least one component made of weakly magnetic material
12/30/1998CN1203635A Process for producing non-oriented electromagnetic steel sheet having high magnetic flux density and low iron loss
12/30/1998CN1041443C Rail of high abrasion resistance and high tenacity having pearlite metalographic structure and method of manufacturing same
12/30/1998CA2292736A1 Pipeline distribution network systems for transportation of liquefied natural gas
12/29/1998US5853659 Steel, steel sheet having excellent workability and method of producing the same by electric furnace-vacuum degassing process
12/29/1998US5853503 Hot rolled steel sheets and method of producing the same
12/29/1998US5853501 Hot rolled Cr-Ni stainless steel plate of low anisotropy and process for producing the same
12/29/1998US5853499 Grain-oriented electrical steel sheet and method of manufacturing the same
12/24/1998DE19749466C1 Production of rolled or cast metal strip with descaled surface, especially strip consisting of special steel and titanium alloys
12/23/1998EP0885978A1 Steel sheet for double wound pipe and method of producing the pipe
12/23/1998EP0885974A1 Process and device for rolling wide hot strip in a compact strip production line
12/22/1998US5851316 Ferrite stainless steel sheet having less planar anisotropy and excellent anti-ridging characteristics and process for producing same
12/15/1998US5849116 Production method for steel material and steel pipe having excellent corrosion resistance and weldability
12/09/1998EP0882807A1 Heat resistant, nickel free constructional steel and process for making plate from it
12/08/1998US5846344 Spring steel of high strength and high corrosion resistance
12/08/1998US5846343 Cold rolled steel sheet exhibiting excellent press workability and method of manufacturing the same
12/03/1998WO1998054371A1 Method for continuous manufacture of a steel band for drawing with improved surface properties
12/02/1998EP0881308A1 High yield ratio-type, hot rolled high strenght steel sheet excellent in formability or and spot weldability
12/02/1998EP0881306A1 Ductile steel with high yield strength and process for manufacturing same
12/02/1998EP0881305A1 Process for manufacturing ferritic stainless steel thin strips and thin strips obtained
12/02/1998CN1040998C Method for prodn. of grain-oriented magnetic steel plate with improved loss of remagnetization
12/01/1998US5843246 Process for producing dual phase ferritic stainless steel strip
12/01/1998CA2147979C Cold formed high-strength steel parts
12/01/1998CA2005676C Formable thin steel sheets and method of producing the same
11/1998
11/26/1998WO1998053134A1 Steel wire and method of manufacturing the same
11/26/1998WO1998027234A3 Helical spring with high volumetric efficiency and method for the production thereof
11/25/1998CN1199782A Process for producing drawn wire made of stainless steel, in particular wire for reinforcing tyres, and wire obtained by the process
11/25/1998CN1199779A Method for batch annealing of austenitic stainless steels
11/24/1998USRE35967 Process of making electrical steels
11/24/1998US5840441 Steel plate, metal plated surface; corrosion resistance
11/24/1998US5840131 Process for producing grain-oriented electrical steel sheet having excellent glass film and magnetic properties
11/19/1998WO1998051833A1 Invar alloy steel sheet material for shadow mask, method of production thereof, shadow mask, and color picture tube
11/18/1998EP0877825A1 Method of preparing a magnetic article from a duplex ferromagnetic alloy
11/18/1998EP0877824A1 Ready-to-use metal wire and method for producing same
11/18/1998EP0687394B1 Improved process for manufacturing alternator pole piece
11/18/1998CN1040776C Cold-rolled steel sheet having excellent workability and process for producing same
11/12/1998WO1998050594A1 Steel compositions and methods of processing for producing cold-formed and carburized components with fine-grained microstructures
11/11/1998EP0876515A1 Drawing stock for reinforcing plastic or rubber articles
11/11/1998CN1198781A Steel sheet with fine square drawing property and making method thereof
11/11/1998CN1040669C Austenitic stainless steel having superior press-formability hot workability and making method thereof
11/10/1998US5834651 Heat treated rapid response pressure gauge spring
11/10/1998US5833919 Air-induced melting, hot rolling and solution heat treament; liquified natural gas-related facilities, e.g. storage tanks, transporting pipes, valves and ships
11/10/1998US5833777 Base plate for suspension assembly in a hard disk drive with a hardened flange and soft hub
11/10/1998US5833771 Stainless steel wire for reinforcing the crown of tires
11/10/1998US5833768 Decarburization annealing process including a pretreatment rapid heating/cooling sequence carried out in non-oxidizing atmosphere to inhibit fayalite crystal growth and preferentially crystallize forsterite
11/10/1998US5832985 Process and device for producing a steel strip with the properties of a cold-rolled product
11/10/1998CA2058470C Wire rod for high strength and high toughness fine steel wire, high strength and high toughness fine steel wire, twisted products using the fine steel wires, and manufacture of the fine steel wire
11/05/1998WO1998049362A1 Steel material having high ductility and high strength and process for production thereof
11/04/1998EP0875586A1 Process for producing non-oriented electrical steel sheet having high magnetic flux density and low iron loss
11/04/1998CN1040555C High tensile strength steel having superior fatigue strength and weldability at welds and method for manufacturing the same
11/03/1998US5830291 Forming protective fecr2o3 scale, pickling. temper mill rolling
11/03/1998US5830285 Fine graphite uniform dispersion steel excellent in cold machinability, cuttability and hardenability, and production method for the same
10/1998
10/29/1998WO1998048062A1 New process for the production of high-permeability electrical steel from thin slabs
10/29/1998WO1998048061A1 Heat treatment of steel
10/28/1998EP0874061A1 Method for batch annealing of austenitic stainless steels
10/28/1998EP0873428A1 Process for the hot rolling of steel bands
10/28/1998CN1197122A Non-oriented electrical steel sheet and method for manufacturing the same
10/27/1998US5827379 Heating alloy steel slab, hot rolling, air cooling, quenching, tempering