| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 05/20/2009 | CN201241170Y Novel fastening device of on-line continuous connecting electrode |
| 05/20/2009 | CN201241169Y Elevation type wire feeding apparatus |
| 05/20/2009 | CN101435058A Economical austenitic stainless steel and technique for producing the same |
| 05/20/2009 | CN101435057A Novel low-cost free-cutting stainless steel 303B and manufacturing process thereof |
| 05/20/2009 | CN101435056A Novel low-cost free-cutting stainless steel 303C and manufacturing process thereof |
| 05/20/2009 | CN101435055A Casting type austenite stainless steel and manufacturing method thereof |
| 05/20/2009 | CN101435009A Synthetic slag suitable for unpolluted deoxidization with voltage applied between metal and slag |
| 05/20/2009 | CN101435008A Aluminum -magnesium-ferrum multicomponent alloy steel melting deoxidizing agent |
| 05/20/2009 | CN101435007A Silicon-magnesium-calcium-strontium-barium-ferrum alloy |
| 05/20/2009 | CN101435006A Low silicon aluminum-iron alloy |
| 05/20/2009 | CN101435005A Low silicon aluminum-iron alloy |
| 05/20/2009 | CN100489140C Vertical grinding hollow abrading-resistant ball chemical composition control and thermal treatment process |
| 05/20/2009 | CN100489139C High-strength abrasion-proof cast steel lining board and manufacturing method thereof |
| 05/20/2009 | CN100488664C Precision casting technology for producing automobile I-shaped front axle |
| 05/19/2009 | US7534390 Tuyere device for introducing gaseous media under a liquid-metal layer |
| 05/13/2009 | CN101429627A Austenite valve steel and technique for producing the same |
| 05/13/2009 | CN101429626A Martensite air valve alloy and process for producing the same |
| 05/13/2009 | CN101429624A High-speed tool steel |
| 05/13/2009 | CN101429615A Nodular graphite cast iron crankshaft of diesel engine and its non-feedhead casting process |
| 05/13/2009 | CN101429614A Medium-low carbon silicon barium chromium-iron alloy production by ore furnace one-step method |
| 05/13/2009 | CN101429613A Hard alloy steel production method |
| 05/13/2009 | CN101429586A Steels with few alumina clusters |
| 05/13/2009 | CN101428342A Ironmaking casting system |
| 05/13/2009 | CN101428294A Method for shortening prescriptive period of high-carbon steel wire rod for drawing |
| 05/07/2009 | WO2006091362A3 System for optically analyzing a molten metal bath |
| 05/06/2009 | EP2054533A1 A ferro-alloy inserting apparatus with reduced absorption of oxygen and absorption of nitrogen and inserting method thereof |
| 05/06/2009 | CN201233181Y Hot bending tube for refining furnace |
| 05/06/2009 | CN201233180Y Vacuum groove repairing station for refining furnace |
| 05/06/2009 | CN101423913A Smelting method for high carbon and chromium martensitic stainless steel material |
| 05/06/2009 | CN101423882A Casting technology of automobile brake disk |
| 05/06/2009 | CN101423881A Steel-smelting deoxidizing agent |
| 05/06/2009 | CN101423880A Modifier for ladle deoxidation and slag formation and method for producing the same |
| 05/06/2009 | CN101423879A Smelting method of low-phosphorus steel |
| 05/06/2009 | CN100485075C High-carbon high-vanadium high-speed steel composite roller and heat treatment method thereof |
| 05/06/2009 | CN100485063C High temperature treating device under strong magnetic field |
| 05/06/2009 | CN100485049C Method for prolonging retention period of molten steel in RH vacuum groove |
| 04/30/2009 | DE102007050478A1 Verfahren zur Rostfreistahlerzeugung mit Direktreduktionsöfen für Ferrochrom und Ferronickel auf der Primärseite eines Konverters A method for stainless steel production by direct reduction of ferrochrome and ferronickel on the primary side of a converter |
| 04/29/2009 | CN201228271Y Hot bending tube of vacuum degassing device |
| 04/29/2009 | CN201228270Y Smoking pipe and water cooling furnace lid including the same |
| 04/29/2009 | CN101421423A Process for production of iron-base amorphous material |
| 04/29/2009 | CN101418894A Composite sealing ring for sealing RH vacuum chamber and method for making same |
| 04/29/2009 | CN101418421A High intensity oil casing tube for resisting sulfurated hydrogen corrosion and method for producing the same |
| 04/29/2009 | CN101418419A Middle and low intensity oil casing tube for resisting sulfurated hydrogen corrosion and method for producing the same |
| 04/29/2009 | CN101418366A Top and bottom combined blown dehydrogenation method of refined-smelting ladle furnace |
| 04/29/2009 | CN101418365A Magnesia-alumina-ferroalloy and preparation method thereof |
| 04/29/2009 | CN101418363A Method for producing low carbon and high ductility X60/X65pipeline steel |
| 04/29/2009 | CN101418356A Method for refining ferro nickel alloy from nickel oxide mine |
| 04/29/2009 | CN100482841C Pipeline steel and its ingredient control method |
| 04/29/2009 | CN100482838C Smelting method for steel used for low-temperature pressure container |
| 04/29/2009 | CN100482809C Method of molten iron desulfuring using magnesium in metal mixer and equipment for realizing said method |
| 04/28/2009 | US7524355 Nano-composite energetic powders prepared by arrested reactive milling |
| 04/22/2009 | EP2050832A1 Two-phase stainless steel |
| 04/22/2009 | CN201224748Y Heat preservation agent plunging apparatus for refining furnace |
| 04/22/2009 | CN201224747Y Top lance for refining furnace |
| 04/22/2009 | CN201224746Y Preheating lance for refining furnace |
| 04/22/2009 | CN201224745Y Dual-heat-insulating layer refining ladle |
| 04/22/2009 | CN101413092A Easy-to-cut stainless steel 303C and manufacturing method thereof |
| 04/22/2009 | CN101413091A Novel easy-to-cut stainless steel 303B and manufacturing method thereof |
| 04/22/2009 | CN101413084A Silicon-chromium-boron alloy wear resistant ball and manufacturing method thereof |
| 04/22/2009 | CN101413047A Method for importing ingredients via high temperature slag ladle bottom |
| 04/22/2009 | CN101413044A Alloy addition method for improving yield of ferromolybdenum |
| 04/22/2009 | CN101413043A Steel-smelting regulator and preparation thereof |
| 04/22/2009 | CN101413042A Slag-forming constituent and preparation thereof |
| 04/22/2009 | CN101412183A Method for producing high-carbon chromium bearing steel by double retarded cooling process |
| 04/22/2009 | CN101412082A Production method for preventing cracks on medium-carbon high manganese steel |
| 04/22/2009 | CN101412050A Abrasion-proof cast iron roll collar for straightening steel rail and preparation method thereof |
| 04/21/2009 | CA2555472C Method for producing low carbon steel |
| 04/15/2009 | EP2048257A1 Free-cutting stainless steel and process for producing the same |
| 04/15/2009 | EP2047926A1 Method of manufacturing stainless steels comprising fine carbonitrides, and product obtained from this method |
| 04/15/2009 | CN201220948Y Apparatus for preventing high temperature directly reduced iron from being reoxidated |
| 04/15/2009 | CN101408379A Apparatus for injecting gas into a vessel |
| 04/15/2009 | CN101407891A Boron-containing semi-high speed steel cold roller and manufacturing method thereof |
| 04/15/2009 | CN101407884A Smelting technique for cast of wind energy apparatus |
| 04/15/2009 | CN101407019A Process for manufacturing corrosion resistant low-chromium tubing and casing in CO2 and H2S coexisted environment |
| 04/15/2009 | CN100478457C Method for preparing iron-nickel alloy strip |
| 04/15/2009 | CN100478455C High-calcium non-silicon aluminium calcium magnesium ferrous alloy for steel-smelting deoxidization and method for preparing the same |
| 04/09/2009 | US20090091068 Injector for injecting particulate material into metallurgical furnaces |
| 04/08/2009 | EP2045338A1 Flux for obtaining steel reduced in nitrogen, oxygen, and sulfur contents through smelting |
| 04/08/2009 | EP2044227A1 High dimensional cored wires containing oxygen removers and a process for making the same |
| 04/08/2009 | CN201217669Y Collector apparatus for alloy charge elephant trunk |
| 04/08/2009 | CN101403077A Biphase stainless steel and method for making same |
| 04/08/2009 | CN101403073A Self-generating carbide particle reinforced ferrite heat-resistant steel and method of producing the same |
| 04/08/2009 | CN101403071A High-alloy hot work steel and producing method thereof |
| 04/08/2009 | CN101403069A Hot-rolled U shaped metal sheet pile and microalloying production method |
| 04/08/2009 | CN101403068A Austenite spheroidal iron and producing method thereof |
| 04/08/2009 | CN101403024A Vacuum refining agent for heat-resistant steel |
| 04/08/2009 | CN101403023A Ultra-deep desulfuration method for hot metal |
| 04/08/2009 | CN101403022A Desulfurization agitator head for hot metal |
| 04/08/2009 | CN100476006C Smelting process of SPHD level cold rolled deep-drawing steel |
| 04/08/2009 | CN100476003C Steel for steel pipes |
| 04/08/2009 | CN100475981C Passivated magnesium desulfurizer containing rare earth oxide and method for preparing same |
| 04/08/2009 | CN100475980C High Ca, silicon-free aluminum calcium iron alloy for deoxidising of molten steel and preparation method thereof |
| 04/08/2009 | CN100475979C Method for smelting suprelow carbon steel using ordinary arc furnace |
| 04/07/2009 | US7513962 Alloy substantially free of dendrites and method of forming the same |
| 04/07/2009 | CA2538618C Industrial furnace and associated jet element |
| 04/01/2009 | CN201214672Y Single nozzle refining furnace |
| 04/01/2009 | CN201214671Y Apparatus for rapid eliminating conduit tube block line for metal line feeder |
| 04/01/2009 | CN101397633A Sulphur and copper-containing free-cutting stainless steel and preparation method thereof |
| 04/01/2009 | CN101397628A Continuous casting bearing steel round steel and method for producing the same |
| 04/01/2009 | CN101397627A Fire resistant and weather resistant anti-shock steel and method for producing the same |