| Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381) |
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| 09/25/2013 | CN103320565A Method for controlling P in smelted H08 welding wire |
| 09/25/2013 | CN102719726B Method for producing stainless steel master liquid |
| 09/25/2013 | CN102719665B Process method for producing slag-forming agent for making steel by utilizing steel making sludge |
| 09/25/2013 | CN102634717B Manufacturing method for steel ingot of axle steel |
| 09/25/2013 | CN102618689B Process technology method for efficient and low-cost converter production of ultra-low phosphorus liquid steel |
| 09/25/2013 | CN102517521B MnCr carburized gear steel and its production method |
| 09/25/2013 | CN102485918B Method for smelting stainless steel by top and bottom combined blown converter |
| 09/24/2013 | US8541336 Metal-carbon compositions |
| 09/24/2013 | US8541335 Metal-carbon compositions |
| 09/24/2013 | US8540794 Furnace chamber sealed against air reduces energy required; low temperature reduction and recovery of combustible synthetic gas as a by-product; avoidance of the reduction of sulfur, phorphorus and silica |
| 09/19/2013 | WO2013137463A1 Separator |
| 09/18/2013 | EP2638347A1 Reinforced distributor for post-combustion lance |
| 09/18/2013 | CN203200296U Novel evaporation cooling steam pocket pressure blow-off control system |
| 09/18/2013 | CN203200295U Device for measuring zero position of oxygen lance of newly-built steelmaking converter |
| 09/18/2013 | CN203200294U Hydraulic drive type oxygen inclined blowing rotating furnace |
| 09/18/2013 | CN203200293U Converter gas compound purification equipment |
| 09/18/2013 | CN203200292U Gas cooler for dry-dedusting converter gases |
| 09/18/2013 | CN203200291U Gas cooling equipment for dry-dedusting converter gases |
| 09/18/2013 | CN203200290U Gas cooling device for dry dust removing system of converter gas |
| 09/18/2013 | CN203200289U Gas cooling device for dry dust removal of converter gas |
| 09/18/2013 | CN103305653A System for recycling raw coke oven gas of manganous slag-rich electric furnace and process for recycling raw coke oven gas |
| 09/18/2013 | CN103305652A Secondary converter port sealing device |
| 09/18/2013 | CN103302279A Anti-adhesive slag agent for tank mouth of semi-steel tank |
| 09/18/2013 | CN102703642B Method for producing slag retaining spear for converter by using waste of smelteries |
| 09/18/2013 | CN102344987B Primary flue gas dry dedusting process for vanadium recovering converter |
| 09/18/2013 | CN102203299B Seal plug for a tiltable converter |
| 09/18/2013 | CN102153358B Slag dart pouring material used for steel-making and vanadium-extracting converter, slag dart and preparation method thereof |
| 09/18/2013 | CN101643886B Stainless steel for cutter and manufacture method thereof |
| 09/12/2013 | WO2013132306A1 Apparatus and method to feed and preheat a metal charge to a melting furnace |
| 09/12/2013 | DE102012004515A1 Lanzenhalter mit Sicherung für ungerade, insbesondere gebogene Sauerstofflanzen Lance holder with fuse for odd, especially curved oxygen lances |
| 09/11/2013 | EP2636978A1 Method for operating an arc oven and melting assembly with an arc oven operated according to this method |
| 09/11/2013 | EP2636758A2 Lance holder with lock for curved lances, in particular curved oxygen lances |
| 09/11/2013 | EP2635715A1 Section for processing liquid metal with gases |
| 09/11/2013 | CN203187703U Automatic calibration device of converter oxygen lance encoder |
| 09/11/2013 | CN103298956A Industrial furnace cover |
| 09/11/2013 | CN103290338A Rare earth-containing seamless steel tube for L690Q pipeline and production method thereof |
| 09/11/2013 | CN103290190A 无取向硅钢及其制造方法 Non-oriented silicon steel and its manufacturing method |
| 09/11/2013 | CN103290169A Method for smelting molybdenum-containing stainless steel |
| 09/11/2013 | CN103290168A Electric steelmaking feed heating material transporting groove |
| 09/11/2013 | CN103290167A Method for prolonging service life of top-bottom composite blowing converter bottom |
| 09/11/2013 | CN103290166A Integrated secondary smoke box for converter stokehole |
| 09/11/2013 | CN103290165A Method for measuring distance between oxygen lance spray head and molten steel surface |
| 09/11/2013 | CN103290164A Non-vacuum deaeration method for converter steel making |
| 09/11/2013 | CN103290163A Semisteel steelmaking method |
| 09/11/2013 | CN102560277B Preparation method of steel bar with corrosion resistance used for natural gas transportation pipeline |
| 09/11/2013 | CN102392095B Termination point prediction method and system for converter steelmaking |
| 09/04/2013 | EP2633090A1 Wireless lance |
| 09/04/2013 | CN203174143U Carbon-oxygen gun for smelting |
| 09/04/2013 | CN203174142U Bottom air blowing nozzle structure and bottom air blowing nozzle device |
| 09/04/2013 | CN203174141U Device for reducing converter steelmaking charging dust |
| 09/04/2013 | CN203174140U Automatic protection device of steel-making oxygen lance |
| 09/04/2013 | CN203174139U Folding clamping bar type plug sending gun for sliding type slag stopping plug |
| 09/04/2013 | CN203174138U Full water cooling forging sprayer |
| 09/04/2013 | CN203174137U Sub-lance probe |
| 09/04/2013 | CN203174136U Stopping-position control device of slag car of converter |
| 09/04/2013 | CN203174135U Limiting device of oxygen gun of converter |
| 09/04/2013 | CN203174134U Girder at front of converter |
| 09/04/2013 | CN203174133U Humidifying and mixing device for dry dust and slurry of primary dust-removal of converter |
| 09/04/2013 | CN203174132U Outer overflow water seal device for primary dust removal of converter |
| 09/04/2013 | CN103276302A High-alumina 17-7 PH stainless steel and preparation method thereof |
| 09/04/2013 | CN103276201A Cyclic utilizing method of carbon steel LF refining slag |
| 09/04/2013 | CN103276174A Chromium-containing high silicon steel strip and preparation method thereof |
| 09/04/2013 | CN103276153A Method for reducing nitrogen content of welding steel wire rod |
| 09/04/2013 | CN103276143A Automobile steel and production technology thereof |
| 09/04/2013 | CN103276142A Slag splashing protection method for electric arc furnace |
| 09/04/2013 | CN103276141A Converter primary flue gas wet type classification dust removing apparatus |
| 09/04/2013 | CN103276140A High-efficiency twin-tower system |
| 09/04/2013 | CN103276139A Nitrogen dilution anti-explosion system in dry-method cooling and purifying recovery system for converter gas |
| 09/04/2013 | CN103276138A Ladle slag modification method |
| 09/04/2013 | CN103276137A Control method used for computer batch charging system of steelmaking converter |
| 09/04/2013 | CN103276136A Converter-steelmaking molten steel phosphorus-determination method based on sublance system |
| 09/04/2013 | CN102827989B Production method of low-carbon high-chromium steel |
| 09/04/2013 | CN102719596B Method for melting converter bottom by remaining converter slags |
| 09/04/2013 | CN102029305B Production method of ultra-thick steel plate |
| 09/04/2013 | CN102022086B Manufacturing method of economical seamless oil well pipe for expansion pipe |
| 09/03/2013 | US8523977 Method of desulfurizing steel |
| 08/28/2013 | EP2630430A1 Device and method for filtering supply network failures out from an electrode signal in a metallurgical electro remelting method |
| 08/28/2013 | EP2630429A1 Cooling-water guide for a melting furnace that can be tipped and that has a furnace cover that can be raised and pivoted |
| 08/28/2013 | CN203159691U A compound converting furnace for production of medium/low-carbon ferromanganese |
| 08/28/2013 | CN203159661U Solar power generating hydrogen-production steelmaking device and reductant supply system thereof |
| 08/28/2013 | CN203159660U Oxygen lance for electric arc furnace steelmaking |
| 08/28/2013 | CN203159659U Converter bottom structure with less possibility of steel penetration accident |
| 08/28/2013 | CN203159658U Centre water-cooling converter oxygen lance sprayer |
| 08/28/2013 | CN203159657U Oblique inserting type sublance system for steel converter |
| 08/28/2013 | CN203159656U Sewage drain tank for flue gas pipeline of converter draught fan |
| 08/28/2013 | CN203159655U Converter capable of restricting relative movement between furnace body and backing ring |
| 08/28/2013 | CN203159654U Steel-making converter system |
| 08/28/2013 | CN203159653U Improved converter secondary dust removal air door opening and closing regulation mechanism |
| 08/28/2013 | CN103266196A Method for producing carbon steel by using low-temperature low-silicon molten iron in 90-ton converter |
| 08/28/2013 | CN103266195A Method for improving smelting dephosphorization of converter |
| 08/28/2013 | CN103264952A Construction method for hoisting converter tower steam pocket in position by using guide rod |
| 08/28/2013 | CN102538496B Zero-emission comprehensive utilizing technology for continuous-casting secondary-cooling vapor and converter vaporizing vapor |
| 08/28/2013 | CN102399930B Method for reducing silicon increasing of low silicon and low aluminum killed steel |
| 08/28/2013 | CN102382937B Electric arc furnace smelting process control method based on furnace gas analysis |
| 08/28/2013 | CN102361306B Energy-saving suspension wire clamp |
| 08/28/2013 | CN102076399B Combustion of CO and combustibles in steel furnace offgases |
| 08/27/2013 | US8520714 Burner/injector panel apparatus |
| 08/22/2013 | WO2013072170A3 Blowing lance for a bof converter |
| 08/21/2013 | CN203148247U Electricity generating system utilizing revolving furnace steam sintering waste heat in combined mode |
| 08/21/2013 | CN203144441U Electric furnace and plug for filling opening of electric furnace |