| Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120) |
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| 03/17/2004 | CN1482271A Casting chrome-tungsten multi-member low alloy grinding-tolerant steel and process |
| 03/17/2004 | CN1142562C Method for preparing a magnetic material by forging and magnetic material in powder form |
| 03/17/2004 | CN1142561C Corrosion-resisting permanent magnet and method for producing same |
| 03/17/2004 | CN1142560C Multielement gap type permanent-magnet material and production process of magnetic powder and magnet |
| 03/17/2004 | CN1142312C Vehicle components |
| 03/17/2004 | CN1142311C Cavitation and abrasion resisting iron-base alloy for hydropower mechinery in high water head and high flow speed condition |
| 03/17/2004 | CN1142310C Anticorrosion refractory high-Co rare-earth alloy |
| 03/17/2004 | CN1142309C Ultralow carbon high toughness steel resisting hydrogen sulfide for gas deliver pipeline |
| 03/17/2004 | CN1142308C High strength high impact toughness bearing steel and its heat treatment process |
| 03/17/2004 | CN1142307C Iron-base powder metallurgy air valve base and its production process |
| 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 | US6705848 Powder metal scrolls |
| 03/16/2004 | US6705370 Load range C and D tires including metallic cord belt layer of specified inch strength |
| 03/16/2004 | CA2298277E Detectable stainless steel needles for meat packing |
| 03/11/2004 | WO2004020684A1 Zinc alloy and process for hot-dip galvannealing of steel |
| 03/11/2004 | US20040048676 Rolling bearing ring of constant velocity joint, and support component for rolling and swinging motion |
| 03/11/2004 | US20040048134 Low-contact-resistance interface structure between separator and carbon material for fuel cell, separator and carbon material used therein, and production method for stainless steel separator for fuel cell |
| 03/11/2004 | US20040047758 Method for enhancement of grain boundary cohesion in crystalline materials and compositions of matter therefor |
| 03/11/2004 | US20040047757 High-hardness, high-toughness steels and crawler components, earth wear resistant components, fastening bolts, high-toughness gears, high-toughness, high contact pressure resistance gears, and wear resistant steel plates using the same |
| 03/11/2004 | US20040047756 Cold rolled and galvanized or galvannealed dual phase high strength steel and method of its production |
| 03/11/2004 | DE10310572A1 Permanentmagnet und Motor Permanent magnet motor, and |
| 03/11/2004 | DE10237446A1 Verwendung eines Chrom-Stahls und dessen Herstellung Use of a chromium steel and its manufacturing |
| 03/10/2004 | EP1396620A1 Exhaust guide assembly for vgs type turbo charger improved in heat resistance and method of producing heat-resisting members applicable thereto, and method of producing raw material for variable vanes applicable thereto |
| 03/10/2004 | EP1396552A1 Double phase stainless steel strip for steel belt |
| 03/10/2004 | EP1395998A1 Bonded magnets made with atomized permanent magnetic powders |
| 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 | CN1480667A Method for manufacturing interlock board and stopper |
| 03/10/2004 | CN1480550A Ultrapurification high nitrogen austenitic stainless steel and its preparation method |
| 03/10/2004 | CN1480549A Clean steel containing barium and its manufacturing method |
| 03/10/2004 | CN1480280A Method for preparing stainless steel powder containing nitrogen by using mechanical alloying |
| 03/10/2004 | CN1141412C band steel for shadow mask and its preparing process |
| 03/10/2004 | CN1141403C Low-carbon steels with superior mechanical and corrosion properties, and its mfg method |
| 03/09/2004 | US6703143 Metal foil excellent in electrical contact stability |
| 03/09/2004 | US6702981 Carburizable, hardness, fracture resistance, content of tungsten, molybedenum, cobalt or vanadium adjusted to compensate for reduction of chromium |
| 03/09/2004 | US6702905 Corrosion and wear resistant alloy |
| 03/09/2004 | US6702904 For use in automobiles; strength |
| 03/04/2004 | WO2004018724A1 Fe-based hardfacing alloy |
| 03/04/2004 | WO2004018271A1 Spring element made from a ferritic chrome steel |
| 03/04/2004 | WO2003031670A8 Steel sheet for container and method of producing the same |
| 03/04/2004 | US20040042926 Corrosion resistance; workability; aging resistance; heat resistance; high strength |
| 03/04/2004 | US20040041458 Road wheel composition and method for manufacturing road wheel using 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 | DE19820806B4 Verwendungen eines Leichtbaustahls Uses a lightweight structural steel |
| 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 | EP1040208B1 Tin-bearing free-machining steel |
| 03/03/2004 | CN1479797A High strength hot rolled steel plate excellent in enlargeability and ductlity and method for production thereof |
| 03/03/2004 | CN1478916A Mn-Re series high malleability air-cooled bainitic steel and its manufacturing process |
| 03/03/2004 | CN1478907A Submicron crystalline grain steel plate separated out nanometer and its manufacturing method |
| 03/03/2004 | CN1140646C Rare earth-iron base compound with great magnetic entropy variation |
| 03/03/2004 | CN1140644C Iron-nickel alloy with creep resistance and low thermal expansion |
| 03/03/2004 | CN1140640C Method for manufacture of steel products of precipitation hardened martensitic steel, steel products obtained with such method and use of said steel products |
| 03/03/2004 | CN1140379C Anticorrosion refractory tubular welding wire |
| 03/02/2004 | US6699590 Hot-dip galvanized steel sheet |
| 03/02/2004 | US6699338 Excellent in weathering resistance by defining the chemical ingredients in the steel each to a predetermined range and setting an ingredient parameter formula in accordance with the working circumstance thereby reducing the flow rust |
| 03/02/2004 | US6699335 Machine part |
| 03/02/2004 | US6699334 Steel sheet used for color CRT mask frame and a manufacturing method for the steel sheet |
| 03/02/2004 | US6699333 Comprised of at least silicon, chromium, nickel, molybdenum, carbon and iron; allows high tempering temperature; having elevated temperature hardness; preserves core properties |
| 03/02/2004 | CA2282128C Stainless steel anode for electrocoagulation printing |
| 03/02/2004 | CA2268453C Austenitic stainless steel having excellent sulfuric acid corrosion resistance and excellent workability |
| 03/02/2004 | CA2259826C Welding material for high-cr steels |
| 03/02/2004 | CA2131651C Martensitic hot work tool steel die block article and method of manufacture |
| 02/26/2004 | US20040037732 Iron-nickel alloy material for shadow mask with excellent suitability for etching |
| 02/26/2004 | US20040037731 Cast steel and casting mold |
| 02/26/2004 | US20040036566 Motor using magnet |
| 02/26/2004 | US20040035576 Steel pipe for embedding-expanding, and method of embedding-expanding oil well steel pipe |
| 02/26/2004 | US20040035508 High strength hot rolled steel plate excellent in enlargeability and ductility and method for producing thereof |
| 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 |
| 02/26/2004 | US20040035499 Rolling elements |
| 02/26/2004 | DE10018132B4 Kohlenstoffstahlmaterial und Bearbeitungsverfahren zur Festigkeitssteigerung Carbon steel material and processing method for increasing the strength |
| 02/25/2004 | EP1391529A1 Wear and corrosion resistant austenitic iron base alloy |
| 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 | EP1390555A1 Metal powder for thermal coating of substrates |
| 02/25/2004 | EP1390550A1 Method for producing a high permeability grain oriented electrical steel |
| 02/25/2004 | EP1390167A1 Castings of alloys with isotropic graphite molds |
| 02/25/2004 | EP1347069A9 High-strength spring steel and spring steel wire |
| 02/25/2004 | EP1026706B1 FEEDSTOCK POWDER FOR R-Fe-B MAGNET AND PROCESS FOR PRODUCING R-Fe-B MAGNET |
| 02/25/2004 | EP1015651B1 Ultra-high strength, weldable, boron-containing steels with superior toughness |
| 02/25/2004 | CN1478173A Metallic honeycomb cellular seal-structure for turbomachine |
| 02/25/2004 | CN1478151A Alloy steel, holders and holder details for plastic moulding tools, and tough hardened blanks for holders and holder details |
| 02/25/2004 | CN1478005A Mixture for powder metallurgy product and method for producing the same |
| 02/25/2004 | CN1477654A Magnet and electric motor using the same |
| 02/25/2004 | CN1477226A Medium-low carbon manganese system self-hardening bainite steel |
| 02/25/2004 | CN1477225A Medium carbon and medium-high carbon manganese system self-hardening bainite steel |
| 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 | CN1139943C Hard magnetic material |
| 02/25/2004 | CN1139670C Ferrite system heat-resisting steel |
| 02/25/2004 | CN1139669C High-strength tough cold extruded die steel |
| 02/25/2004 | CN1139668C Technological process for producing Al. and B-containing high strength microalloy steel |