| Patents for C22C 33 - Making ferrous alloys (11,268) |
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| 05/06/2009 | CN101423913A Smelting method for high carbon and chromium martensitic stainless steel material |
| 05/06/2009 | CN100485075C High-carbon high-vanadium high-speed steel composite roller and heat treatment method thereof |
| 05/06/2009 | CN100485071C Electric furnace smelting recovery method for chronium-nickel alloy element in stainless steel dedusting ash |
| 05/06/2009 | CN100485063C High temperature treating device under strong magnetic field |
| 05/05/2009 | US7527667 Powder metallurgical compositions and methods for making the same |
| 04/30/2009 | WO2009053044A1 Method for producing stainless steel using direct reduction furnaces for ferrochrome and ferronickel on the primary side of a converter |
| 04/29/2009 | EP2053138A1 Composite material made from metal powder, starting material and process of preparation |
| 04/29/2009 | EP2051826A1 Iron-based powder |
| 04/29/2009 | EP1558776B8 High temperature resistant alloys |
| 04/29/2009 | CN101421430A Cold-working steel |
| 04/29/2009 | CN101418420A GH2674 alloy |
| 04/29/2009 | CN101418416A Low welding crack sensitivity steel plate with yield strength of 800MPa grade and method for producing the same |
| 04/29/2009 | CN101418414A QT600-3 ductile iron casting and method for producing the same |
| 04/29/2009 | CN101418413A Niobium alloy cast iron brake disk material and technique for producing the same |
| 04/29/2009 | CN101418411A Low nickel cast iron and preparation method thereof and use thereof in impeller |
| 04/29/2009 | CN101418408A Arrangement of energy-saving type steel-smelting workshop |
| 04/29/2009 | CN101418356A Method for refining ferro nickel alloy from nickel oxide mine |
| 04/29/2009 | CN100483813C Metal bipolar plate of containing carbon element surface of fuel cell, and fabricating method |
| 04/29/2009 | CN100482843C High performance corrosion-proof rare earth super strength dual-phase stainless steel and its smelting tech. |
| 04/29/2009 | CN100482840C Nickel-base high-temperature alloy material for guide roller and heat treatment process thereof |
| 04/29/2009 | CN100482839C Manufacture method for obtaining superfine crystal grain steel |
| 04/29/2009 | CN100482838C Smelting method for steel used for low-temperature pressure container |
| 04/29/2009 | CN100482837C Filling particle for producing foam ferrous metals and production method thereof |
| 04/29/2009 | CN100482809C Method of molten iron desulfuring using magnesium in metal mixer and equipment for realizing said method |
| 04/22/2009 | EP2049698A2 High carbon surface densified sintered steel products and method of production therefor |
| 04/22/2009 | CN101413084A Silicon-chromium-boron alloy wear resistant ball and manufacturing method thereof |
| 04/22/2009 | CN101413082A Easy-to-cut water atomized steel powder and production method thereof |
| 04/21/2009 | US7521017 Heating and melting the powder mixture by a laser, shaping the powder as the laser follows a predetermined pattern over the substrate, cooling and forming the article of manufacture with the fine grain structure |
| 04/15/2009 | EP2046521A1 Metallic powder mixtures |
| 04/15/2009 | EP1749113A4 Method for forming a hardened surface on a substrate |
| 04/15/2009 | EP1716271A4 Hardfacing ferroalloy materials |
| 04/15/2009 | CN201220959Y Apparatus for vaporizing magnesium in molten iron |
| 04/15/2009 | CN101407884A Smelting technique for cast of wind energy apparatus |
| 04/15/2009 | CN101406900A Centrifugal casting half steel/graphite steel composite roll collar and preparation method thereof |
| 04/15/2009 | CN100478687C Evaluation method for raw material for magnet |
| 04/15/2009 | CN100478478C As-cast state high-carbon high-chromium cast iron and method for producing the same |
| 04/15/2009 | CN100478477C Method for extracting nickel iron alloy from laterite ore |
| 04/15/2009 | CN100478469C Method of producing a copper-germanium-boron master alloy and its use in making silver-copper alloys |
| 04/15/2009 | CN100478455C High-calcium non-silicon aluminium calcium magnesium ferrous alloy for steel-smelting deoxidization and method for preparing the same |
| 04/14/2009 | US7517416 Alloy of Fe, Mn, Mo, B, C, and optionally Cr; e.g., Fe50-Mn10-Mo14-Cr4-C15-B7; high processability while maintaining superior mechanical properties and good corrosion resistance |
| 04/09/2009 | DE102007061176B3 Verfahren zum Herstellen von Turbinenwellen für Energiemaschinen Method for producing turbine shafts for power equipment |
| 04/08/2009 | EP2045346A1 Sintered composite sliding part and production method therefor |
| 04/08/2009 | EP2043801A1 Fabrication method of alloy parts by metal injection molding and the alloy parts |
| 04/08/2009 | CN100475980C High Ca, silicon-free aluminum calcium iron alloy for deoxidising of molten steel and preparation method thereof |
| 04/08/2009 | CN100475389C Sintered metal parts and method for the manufacturing thereof |
| 04/08/2009 | CN100475388C Iron-based powder composition comprising a combination of binder-lubricants and preparation of the powder composition |
| 04/07/2009 | CA2230443C Process for the production of ultrafine particles |
| 04/02/2009 | WO2009041338A1 Production system of alloy |
| 04/02/2009 | WO2009040369A1 Metallurgical powder composition and method of production |
| 04/02/2009 | CA2700056A1 Metallurgical powder composition and method of production |
| 04/01/2009 | CN101397643A Novel phosphorus and sulphur pig iron for aluminum electrolysis |
| 04/01/2009 | CN101397637A 13Cr high anti-carbon dioxide and trace hydrogen sulfide corrosion tubing and casing steel and method for producing the same |
| 04/01/2009 | CN101397636A High toughness ring chain steel for mine and method for producing the same |
| 04/01/2009 | CN101397635A 12Cr2Mo1R thick steel plate for equipment contacting hydrogen and method for producing the same |
| 04/01/2009 | CN101397633A Sulphur and copper-containing free-cutting stainless steel and preparation method thereof |
| 04/01/2009 | CN101397630A Cold-work tool steel article |
| 04/01/2009 | CN101397628A Continuous casting bearing steel round steel and method for producing the same |
| 04/01/2009 | CN101397626A High intensity and high-toughness hot-rolled steel sheet and method for producing the same |
| 04/01/2009 | CN101397625A Superfine grain steel sheet with yield strength of 420 MPa grade and method for producing the same |
| 04/01/2009 | CN100473747C Manufacturing method of high intensity stainless steel resisting spot corrosion |
| 04/01/2009 | CN100473745C Oil well tube resisting stress corrosion of H2S and manufacture method thereof |
| 04/01/2009 | CN100473744C Method for preparing rare-earth containing high temperature oxidation resistant ferritic stainless steel |
| 04/01/2009 | CN100473738C Solution strengthening isotropical steel and preparation method thereof |
| 04/01/2009 | CN100473737C Wear-resistant bainite cast steel liner plate and manufacture process thereof |
| 03/25/2009 | CN101392351A High efficiency and high strength dynamo steel and production method thereof |
| 03/25/2009 | CN101392350A Extremely low yield point steel plate and production method thereof |
| 03/25/2009 | CN101392348A Method for producing high carbon ferrochrome by using small granule anthracite partial instead of coke |
| 03/25/2009 | CN100471974C Bainite steel rail with excellent anti-fatigue performance and its production method |
| 03/25/2009 | CN100471973C Steel wire rod having excellent drawability and fatigue properties, and manufacturing method thereof |
| 03/19/2009 | WO2009036112A1 Hardfacing containing fullerenes for subterranean tools and methods of making |
| 03/18/2009 | EP2035586A1 Grain refiners for steel - manufacturing methods and use |
| 03/18/2009 | CN101389777A Porous body containing mixed oxides made from an iron/chrome alloy for fuel cells |
| 03/18/2009 | CN101386952A Ferrosilicium smelting method and ferrosilicium smelting-furnace |
| 03/18/2009 | CN101386951A Nickel-copper intermediate alloy and melting and purification treatment method thereof |
| 03/18/2009 | CN101386950A Nickel iron intermediate alloy and melting and purification treatment method thereof |
| 03/18/2009 | CN100469933C Austenitic gray cast iron material and method for making same |
| 03/18/2009 | CN100469932C V2O5 direct alloying steel-making technology |
| 03/18/2009 | CN100469491C Method for producing fine crystal metal for golf club |
| 03/12/2009 | WO2009030291A1 Method of producing a sinter-hardenable powder metal part |
| 03/12/2009 | WO2009030290A1 Method of producing a sinter-hardened component |
| 03/12/2009 | CA2698139A1 Method of producing a sinter-hardened component |
| 03/11/2009 | CN101384387A Iron-based powder mixture, and method of manufacturing iron-based compacted body and iron-based sintered body |
| 03/11/2009 | CN101381845A High-purity ferrite stainless steel material and manufacturing method thereof |
| 03/11/2009 | CN101381842A High chromium content ferrite stainless steel and manufacturing method thereof |
| 03/11/2009 | CN101381838A Vermicular cast iron cylinder liner and preparation method thereof |
| 03/11/2009 | CN101381837A Traction motor casing new material for high speed motor train set and fabrication technique thereof |
| 03/11/2009 | CN101381793A Silicon-bismuth as-cast pearlitic ductile iron inoculant |
| 03/11/2009 | CN100467658C Non-magnetic high-strength stainless steel material and method for manufacturing the same |
| 03/11/2009 | CN100467652C Easy-weld hardening high-strength steel plate and production method thereof |
| 03/11/2009 | CN100467151C Low-aliquation high-speed steel roll and the preparing method |
| 03/04/2009 | EP1825013A4 Improved wear resistant alloy |
| 03/04/2009 | CN101376951A High strength wire rod for bridge stay cable and suspended cable galvanized steel wire, and manufacturing method thereof |
| 03/04/2009 | CN101376949A Martensite antibacterial stainless steel and manufacturing method thereof |
| 03/04/2009 | CN101376948A Low-cost high-purity medium carbon bearing steel for automobile hub and manufacturing method thereof |
| 03/04/2009 | CN101376947A High strength X90 pipeline steel and production method thereof |
| 03/04/2009 | CN101376942A Preparation of manganese series water quenching bainite steel |
| 03/04/2009 | CN100465324C A low-alloy high speed steel roll material and a manufacturing method thereof |
| 03/04/2009 | CN100465323C A nanometer crystal composite permanent-magnet alloy and a preparation method thereof |
| 03/04/2009 | CN100465321C A steel for cooling-controlsteels with trace niobium and a production method thereof |
| 03/04/2009 | CN100465317C A special multi-component low rare earth vermiculizer for producing thick wall Vermicular iron elements by a cupola |