| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 03/23/2004 | US6709534 Nano-composite martensitic steels |
| 03/18/2004 | WO2004022807A1 Steel product for high heat input welding and method for production thereof |
| 03/18/2004 | WO2004022794A1 Method for producing steel with retained austenite |
| 03/18/2004 | WO2004022793A2 Very high mechanical strength steel and method for making a sheet thereof coated with zinc or zinc alloy |
| 03/18/2004 | WO2003018856A9 Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steels |
| 03/18/2004 | US20040050464 Method for producing a cold rolled strip that is cold formed with low degrees of deformation |
| 03/18/2004 | US20040050463 High strength and corrosion resistant alloys comprising carbon, silicon, chromium, nickel, nitrogen, molybdenum, tungsten and iron, formed by heating and cooling |
| 03/18/2004 | US20040050461 Cold rolled steel sheet and galvanized steel sheet having strain age hardenability and method of producing the same |
| 03/18/2004 | US20040050459 Alloys having corrosion resistance and hardness used as tools |
| 03/18/2004 | US20040050445 Steel pipe having low yield ratio |
| 03/17/2004 | EP1398392A1 High tensile hot rolled steel sheet excellent in shape freezing property and endurance fatigue characteristics after forming |
| 03/17/2004 | EP1398390A1 Steel with a very fine ferritic and martensitic microstructure having a high tensile strength |
| 03/17/2004 | EP1397527A1 Grain oriented electric sheet of metal with an electrically insulating coating |
| 03/17/2004 | EP1021572B1 Hot rolling high-strength steel structural members |
| 03/17/2004 | EP0777756B2 Method for manufacturing duplex stainless steel |
| 03/17/2004 | CN1483089A Material for shadow mask, method for production thereof, shadow mask comprising the material and picture tube using the shadow mask |
| 03/17/2004 | CN1482648A Color crt mask frame and steel sheet used therefor |
| 03/17/2004 | CN1142562C Method for preparing a magnetic material by forging and magnetic material in powder form |
| 03/17/2004 | CN1142312C Vehicle components |
| 03/17/2004 | CN1142038C Method and device for producing hot-rolled strips and plates |
| 03/16/2004 | US6706419 Antiaging property at room temperature and formability at the same time |
| 03/16/2004 | US6706125 Tunnel wall frame member for constructing a road under a railroad; hot rolling; wrinkle flaws present on the inner surface of said curved claw have a depth of 0.5 mm or less |
| 03/16/2004 | CA2298277E Detectable stainless steel needles for meat packing |
| 03/11/2004 | WO2004020815A1 Method for working a workpiece for a fuel high-pressure accumulator and workpiece for using this method |
| 03/11/2004 | US20040048217 Process for producing steel products having improved grain size properties and machinability |
| 03/11/2004 | US20040048089 Inner magnetic shielding material and method for production thereof |
| 03/11/2004 | DE10239372B3 Production of deformed parts comprises using a deformation temperature controlled via an active medium and fitting an alloy composition in combination with a relatively low deformation speed compared with a classical deep drawing process |
| 03/10/2004 | EP1396550A1 Method for manufacturing hot strip |
| 03/10/2004 | EP1396549A1 Process for manufacturing hot rolled pearlite-free steel strip and hot strip obtained thereby |
| 03/10/2004 | CN1481446A Process for prodn. of grain oriented electrical steel |
| 03/10/2004 | CN1481445A Process for prodn. of grain oriented electrical steel strips |
| 03/10/2004 | CN1481444A Process for prodn. of grain oriented electrical steel strips |
| 03/10/2004 | CN1481443A Prodn method for steel plate and equipment therefor |
| 03/10/2004 | CN1141412C band steel for shadow mask and its preparing process |
| 03/09/2004 | US6702904 For use in automobiles; strength |
| 03/04/2004 | WO2003031670A8 Steel sheet for container and method of producing the same |
| 03/04/2004 | US20040040633 Method for the production of hot strip or sheet from a micro-alloyed steel |
| 03/04/2004 | US20040040631 Nitriding surface of martensite stainless steels |
| 03/04/2004 | US20040040629 Grain-oriented electrical steel sheet excellent in magnetic properties and method for producing the same |
| 03/03/2004 | EP1394281A1 UNIDIRECTIONAL SILICON STEEL SHEET OF ULTRA−LOW IRON LOSS AND METHOD FOR PRODUCTION THEREOF |
| 03/03/2004 | EP1394280A1 Metal gasket and its law material and methods for production of them |
| 03/03/2004 | EP1394279A1 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 |
| 03/03/2004 | EP1394276A1 HIGH TENSILE HOT−ROLLED STEEL SHEET EXCELLENT IN RESISTANCE TO SCUFF ON MOLD AND IN FATIGUE CHARACTERISTICS |
| 03/03/2004 | EP1392873A1 Method of producing stainless steels having improved corrosion resistance |
| 03/03/2004 | EP1042516B1 Cold drawn wire and method for the manufacturing of such wire |
| 03/03/2004 | CN1479931A Inner magnetic shielding material and method for production thereof |
| 03/03/2004 | CN1479797A High strength hot rolled steel plate excellent in enlargeability and ductlity and method for production thereof |
| 03/03/2004 | CN1478907A Submicron crystalline grain steel plate separated out nanometer and its manufacturing method |
| 03/02/2004 | US6699590 Hot-dip galvanized steel sheet |
| 03/02/2004 | US6699334 Steel sheet used for color CRT mask frame and a manufacturing method for the steel sheet |
| 03/02/2004 | CA2131651C Martensitic hot work tool steel die block article and method of manufacture |
| 02/26/2004 | US20040035508 High strength hot rolled steel plate excellent in enlargeability and ductility and method for producing thereof |
| 02/26/2004 | US20040035507 Carbon-titanium steel rail |
| 02/26/2004 | US20040035501 Slabs formed by hot and cold rolling, then annealing and applying lubricant coatings comprising acrylic resins, calcium stearate and polyethylene waxes; alloys used in automobile fuel tanks and pipes; smoothness; acid resistance |
| 02/26/2004 | US20040035500 Plates comprising mixtures of austenite, bainite and ferrites having tensile strength and workability, used in automobiles |
| 02/25/2004 | EP1391528A1 Ferritic stainless steal and martensitic stainless steel both being excellent in machinability |
| 02/25/2004 | EP1391526A2 Dual phase steel sheet with good bake-hardening properties |
| 02/25/2004 | EP1390550A1 Method for producing a high permeability grain oriented electrical steel |
| 02/25/2004 | EP1015651B1 Ultra-high strength, weldable, boron-containing steels with superior toughness |
| 02/25/2004 | CN1477224A Shadow mask strip material with good form after it is etched |
| 02/25/2004 | CN1477214A Production method of low yield strength ratio refactory hot continuously-rolled strip for building |
| 02/25/2004 | CN1139668C Technological process for producing Al. and B-containing high strength microalloy steel |
| 02/25/2004 | CN1139442C Method and device for controlling metallurgical equipment |
| 02/24/2004 | US6695933 Ultra-high strength cold rolled steel sheet and method for manufacturing the same |
| 02/24/2004 | US6695932 Cold-rolled steel sheet having excellent strain aging hardening properties and method for producing the same |
| 02/24/2004 | CA2292215C Process for continuous heating and cleaning of wire and strip products in a stratified fluidized bed |
| 02/19/2004 | WO2004014577A1 Cooling device, manufacturing method, and manufacturing line for hot rolled steel band |
| 02/19/2004 | US20040031547 High tensile hot-rolled steel sheet having excellent strain aging hardening properties and method for producing the same |
| 02/19/2004 | US20040031544 Steel of a structure composed of bainite and/or martensite by containing prescribed amounts of carbon, silicon, manganese, phosphorus, sulfur, nickel, molybdenum, niobium, titanium, aluminum and nitrogen; use to transport crude oil for example |
| 02/19/2004 | US20040031309 Method and a device for manufacturing of a closed profile and a profile manufactured according to said method |
| 02/18/2004 | EP1389639A2 Steel sheet with excellent bendability |
| 02/18/2004 | CN1475594A Fe-Ni alloy material for shadow mask and its preparing process |
| 02/18/2004 | CN1475583A Unidirectional electromagnetic steel plate with good magnetic character and its mfg. method |
| 02/18/2004 | CN1138863C Steel sheet for heat shrink band and method for producing the same |
| 02/17/2004 | US6692992 Hardened Fe-Ni alloy for the manufacture of integrated circuit leaderframes and manufacturing process |
| 02/17/2004 | US6692592 Method for manufacturing high chromium system seamless steel pipe |
| 02/17/2004 | US6692584 High tensile cold-rolled steel sheet excellent in ductility and in strain aging hardening properties, and method for producing the same |
| 02/12/2004 | WO2004013365A1 Nonoriented magnetic steel sheet, member for rotary machine and rotary machine |
| 02/12/2004 | US20040026562 Precipitated, hardening stainless steels; braking strips |
| 02/12/2004 | US20040025979 High strength; chemical resistance; aircraft fuel tanks; automobile bodies |
| 02/11/2004 | CN1138016C Cold-rolled steel plate with excellent forming property, surface shaping property and anti-rabbing and manuacture method thereof |
| 02/11/2004 | CN1138014C Non-orientation electromagnetic steel plate with low iron loss and high magnetic flux density performance and its manuacturing method |
| 02/10/2004 | US6689490 Display element for employment in a magnetic anti-theft security system |
| 02/10/2004 | US6689231 Seamless tubes comprising ferrite and/or austenite stainless steels formed by extrusion, then cold rolling and annealing having improved yield points, tensile strength, corrosion and creep resistance, for use in underwater oil apparatus |
| 02/10/2004 | US6689229 High strength cold rolled steel sheet and method for manufacturing the same |
| 02/10/2004 | US6688148 Annealing, coating with lubricant; drawing, reducing diameter; heat treatment, quenching |
| 02/05/2004 | US20040020570 High strength cold rolled steel sheet and method for manufacturing the same |
| 02/05/2004 | DE19543804B4 Verfahren zur Herstellung von feuerverzinktem Stahlband und damit hergestelltes feuerverzinktes Blech oder Band aus Stahl A process for the production of hot-dip galvanized steel strip and hot-dip galvanized thus produced sheet or strip of steel |
| 02/04/2004 | EP1386977A1 Ferritic stainless steel strip excellent in freeze of shape formed by working |
| 02/04/2004 | CN1473131A Endless yarn tensioning strip and method for producing the same |
| 02/03/2004 | US6686061 Steel plate having TiN+CuS precipitates for welded structures, method for manufacturing same and welded structure made therefrom |
| 01/29/2004 | US20040016530 Method of continuous casting non-oriented electrical steel strip |
| 01/27/2004 | US6682829 Welded steel pipe having excellent hydroformability and method for making the same |
| 01/27/2004 | US6682613 Heating, cooling and deforming material containing niobium, vanadium and/or titanium to introduce dislocations in crystal structure |
| 01/27/2004 | US6682612 Method of heat treatment of wire |
| 01/27/2004 | US6682610 Manufacturing method for hollow stabilizer |
| 01/27/2004 | US6682227 Rolling bearing component |
| 01/22/2004 | WO2004007780A1 Martensitic stainless steel seamless pipe and a manufacturing method thereof |
| 01/22/2004 | US20040012321 Fe-Ni alloy material for shadow mask and method for manufacturing thereof |
| 01/22/2004 | US20040011441 Cold-rolled aluminum killed steel sheet and method of manufacturing packaging from said sheet |