| Patents for C22C 33 - Making ferrous alloys (11,268) |
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| 05/18/2011 | CN102061423A Compound processing method of boron-containing high-speed steel roller material |
| 05/18/2011 | CN102061422A Method for preparing self-lubricating ferrous molybdenum sulfide/ferrous sulfide multiphase wear resistant material |
| 05/18/2011 | CN102061359A A slag conditioner composition, process for manufacture and method of use in steel production |
| 05/18/2011 | CN102061358A Desulfuration refining process of high-sulfur crude ferronickel |
| 05/18/2011 | CN102061357A Dephosphorization refining process for phosphorus-containing coarse ferronickel |
| 05/18/2011 | CN101748325B High-strength wear-resisting ductile iron coiling block and manufacturing method thereof |
| 05/18/2011 | CN101748323B Preparation method for forming Al2O3 nano-particles in molten steel |
| 05/18/2011 | CN101724788B Preparation method of high-vanadium steel wear resistant material |
| 05/18/2011 | CN101555565B Process for producing vermicular cast iron by cupola-line frequency furnace duplex melting |
| 05/18/2011 | CN101506401B Powder forged member, powder mixture for powder forging, method for producing powder forged member, and fracture split type connecting rod using the same |
| 05/18/2011 | CN101490285B Grain refiners for steel - manufacturing methods and use |
| 05/11/2011 | CN102051531A High boron content austenite stainless steel and preparation method thereof |
| 05/11/2011 | CN102051530A 48MnV nitrogenous steel and nitrogen adding process thereof |
| 05/11/2011 | CN102051522A Steel plate made of bainite structure high-strength toughness structural steel Q550D(E) and production method thereof |
| 05/11/2011 | CN102051520A Composite beam connecting piece for maglev train and casting method of composite beam connecting piece |
| 05/11/2011 | CN102051519A Lean slag process in vanadium iron smelting and special device |
| 05/11/2011 | CN102051518A Method for recycling fine ferrovanadium particles |
| 05/11/2011 | CN102051517A Manufacture method of NdFeB permanent magnet material |
| 05/11/2011 | CN102051516A Separation method of stainless steel and pressure welding material |
| 05/11/2011 | CN102049485A Method for composite centrifugal casting high-chromium steel roller |
| 05/11/2011 | CN101775533B High-strength and high-tenacity nodular cast iron and working roll of wide thick plate |
| 05/11/2011 | CN101538689B Non-magnetic stainless steel with high strength and toughness, manufacturing method and application thereof |
| 05/11/2011 | CN101440462B Economical long service life material for mechanical press forging die and manufacturing method thereof |
| 05/11/2011 | CN101270441B Economy type X80 pipeline steel and producing method thereof |
| 05/11/2011 | CN101236817B Magnetic sensitive material and its making method |
| 05/05/2011 | WO2011051293A1 Iron based powder composition |
| 05/04/2011 | CN102046824A Iron-base sintered alloy for valve sheet and valve sheet for internal combustion engine |
| 05/04/2011 | CN102041459A Steel plate HT690 capable of being subjected to high heat input welding and manufacturing method thereof |
| 05/04/2011 | CN102041453A Novel wear-resisting and corrosion-resisting stainless steel and production process thereof |
| 05/04/2011 | CN102041448A Steel for micro vanadium-titanium composite processing boilers and pressure vessels and manufacturing method thereof |
| 05/04/2011 | CN102041444A Low-carbon low-silicon high-quality carbon structural steel and production method thereof |
| 05/04/2011 | CN102041438A Low-alloy high-strength structural-steel extra-thick board Q460C and production method thereof |
| 05/04/2011 | CN102041437A 160mm-thick Q345E-Z35 steel plate for high-rise buildings and production method thereof |
| 05/04/2011 | CN102041436A Steel plate for low-alloy high-strength structured steel Q460C and production method thereof |
| 05/04/2011 | CN102041435A Hot rolling steel plate made of weldable fine grain structural steel S355ML and production method thereof |
| 05/04/2011 | CN102041434A Steel plate for low-alloy high-strength structured steel Q460E-Z35 and production method thereof |
| 05/04/2011 | CN102041433A X70 steel plate for low-cost pipe fittings and production method thereof |
| 05/04/2011 | CN102041432A Q420GJD-Z35 steel plate with thickness of less than or equal to 60 millimeters for high-rise building and production method thereof |
| 05/04/2011 | CN102041431A Q345B protected flaw detection steel plate and production method thereof |
| 05/04/2011 | CN102041430A Method for preparing titanium alloy brake drum |
| 05/04/2011 | CN102041428A Method for casting box body of megawatt level wind turbine |
| 05/04/2011 | CN102041427A Grey cast iron production process |
| 05/04/2011 | CN102041426A Process for casting cylinder jacket by using alloy cast iron |
| 05/04/2011 | CN102041342A Method for preparing cast high-strength high-toughness nodular cast iron |
| 05/04/2011 | CN102041341A Components and preparation process of spheroidizing agent |
| 05/04/2011 | CN102038964A Amorphous Fe-Co-B nano magnetic resonance contrast agent material and preparation method thereof |
| 05/04/2011 | CN101775558B Fe-Cr-B cast abrasion-resistant alloy and manufacturing method thereof |
| 05/04/2011 | CN101509110B Fe-based bulk amorphous alloy material and method of producing the same |
| 05/04/2011 | CN101457328B High chromium, high manganese and high nitrogen biphase stainless steel and preparation method thereof |
| 05/04/2011 | CN101251152B Oil impregnated sintered bearing and method for manufacturing same |
| 04/27/2011 | EP2315287A1 Magnetostrictive material and preparation method thereof |
| 04/27/2011 | CN102031457A Yttrium-containing low-alloy steel plate hammer |
| 04/27/2011 | CN102031445A Method for preparing high-magnetic energy product high-coercive force low-cost sintered neodymium iron boron |
| 04/27/2011 | CN102031444A High-hardenability alloyed gray iron die material and preparation method thereof |
| 04/27/2011 | CN102031443A Method for improving performance of alloy steel by using nano ceramic powder and special equipment thereof |
| 04/27/2011 | CN102031442A Preparation and application method of inoculant for tissue deterioration refinement of high-speed steel for roller |
| 04/27/2011 | CN102031441A Complex additive for spheroidizing and dispersing sulfides in steel and use method thereof |
| 04/27/2011 | CN102031327A Chill casting additive |
| 04/27/2011 | CN102029347A Manufacturing method of gear shaft forge piece for offshore drilling platform |
| 04/26/2011 | CA2489489C Composition and process for warm compaction of stainless steel powders |
| 04/21/2011 | WO2011046718A2 Iron-based sintered powder metal for wear resistant applications |
| 04/21/2011 | WO2011045391A1 Nitrogen containing, low nickel sintered stainless steel |
| 04/21/2011 | WO2010028470A8 Metallurgical composition of particulate materials, self-lubricating sintered product and process for obtaining self-lubricating sintered products |
| 04/20/2011 | CN201801537U Single blow grain magnesium desulfurizing device for molten iron |
| 04/20/2011 | CN102021500A Novel super austenite 6Mo type stainless steel |
| 04/20/2011 | CN102021496A Duplex stainless steel and production process thereof |
| 04/20/2011 | CN102021495A 420 MPa weatherproof bridge steel with high ductility and method for manufacturing hot rolled coil of 420 MPa weatherproof bridge steel with high ductility |
| 04/20/2011 | CN102021492A Low-carbon low-alloy abrasion-resistant steel and production method thereof |
| 04/20/2011 | CN102021488A Steel for nuclear-island seamless steel tube and production method thereof |
| 04/20/2011 | CN102021483A Cold-rolled dual-phase steel plate with 1,200 MPa-level tensile strength and preparation method thereof |
| 04/20/2011 | CN102021473A Method for preparing Fe3Al-Al2O3 composite material |
| 04/20/2011 | CN102021471A Preparation method for neodymium iron boron permanent magnet material |
| 04/20/2011 | CN102021469A Powder for strengthening wear resistance of high-chromium iron, preparing method thereof and wear resistant castings |
| 04/20/2011 | CN102021468A Smokeless spheroidizing method |
| 04/20/2011 | CN102021467A Nodular cast iron nodulizer |
| 04/20/2011 | CN102021466A Method for producing nano alloy cast iron grinding balls by using nano material |
| 04/20/2011 | CN102019381A Rare earth treatment method of continuously cast 20 steel crack-free tube blank |
| 04/20/2011 | CN102019351A Method for producing spheroidal graphite iron casting with high strength and thick and uniform wall |
| 04/20/2011 | CN102019294A Large-sized high-ductility wear-resisting alloy roller and manufacturing method thereof |
| 04/20/2011 | CN101705417B Method for producing medium and low carbon ferromanganese through furnace refining |
| 04/20/2011 | CN101698895B Low-cost preparation method for high-elongation ductile iron castings |
| 04/20/2011 | CN101629264B Alloy casting piece for producing a variety of brands of sintered Nd-Fe-B magnets |
| 04/20/2011 | CN101586188B Two-stage roasting mineral smelting integrated technique of laterite |
| 04/20/2011 | CN101580912B Low carbon high sulfur free-cutting steel production process |
| 04/20/2011 | CN101469369B Composite additive for electroslag remelted alloy tool and die steel and adding method thereof |
| 04/20/2011 | CN101235462B Use of waste copper in smelting copper-containing steel |
| 04/14/2011 | WO2011043158A1 Rare earth magnetic material and method for producing the same |
| 04/14/2011 | US20110083775 Heavy wall steel material having superior weldability and method for producing the same |
| 04/13/2011 | EP2309009A2 Method For preparing A Metallic Article Having An Other Additive Constituent, Without Any Melting |
| 04/13/2011 | CN1938114B Method for producing soft magnetic material, soft magnetic powder and dust core |
| 04/13/2011 | CN102015163A Metallic powder mixtures |
| 04/13/2011 | CN102011062A Easy-cutting gear steel and smelting method thereof |
| 04/13/2011 | CN102011059A Smelting technological process of low-silicon low-manganese ultrapure rotor steel |
| 04/13/2011 | CN102011057A CrMnTi series gear steel and processing technique thereof |
| 04/13/2011 | CN102011051A High-strength and high-ductility medium carbon TRIP (transformation induced plasticity) steel and preparation method thereof |
| 04/13/2011 | CN102011049A Ta-doped FeCo-based soft magnetic alloy and preparation method thereof |
| 04/13/2011 | CN102011047A Production method of steel plate for pressure vessel with low cost and high performance |
| 04/13/2011 | CN102011044A Continuous-casting martensitic spheroidal graphite cast iron lining plate and machining process thereof |
| 04/13/2011 | CN102010925A Method for smelting novel medium carbon J55 steel |
| 04/13/2011 | CN101781735B Economical high-strength binding strip steel with tensile strength more than or equal to 1,000 MPa, and manufacturing method thereof |