| Patents for C22C 33 - Making ferrous alloys (11,268) |
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| 10/16/2013 | CN103352174A Roll ring for rolling and straightening track beam, and manufacturing method for same |
| 10/16/2013 | CN103352170A Alloy forged steel and production method and application thereof |
| 10/16/2013 | CN103352168A Low-carbon and high-chromium steel and converter smelting technology thereof |
| 10/16/2013 | CN103352167A Low-yield ratio and high-strength steel for bridges and manufacturing method thereof |
| 10/16/2013 | CN103352164A Method for preparing carbon nano tube cast steel composite material through precast block |
| 10/16/2013 | CN103352161A Ductile iron casting and casting process thereof |
| 10/16/2013 | CN102787196B Method for smelting stainless steel by direct reduced iron |
| 10/16/2013 | CN102766810B Production method of rack steel for self-elevating oil extraction platform |
| 10/15/2013 | US8557176 Method for influencing the properties of cast iron |
| 10/09/2013 | CN103343289A High-temperature wear-resistant cast steel and preparation method thereof |
| 10/09/2013 | CN103343279A As-cast pearlite ductile iron material for crankshaft, and preparation method of the same |
| 10/09/2013 | CN103343278A Method for producing gray cast iron for machine |
| 10/09/2013 | CN103341595A Long-acting alterative of high ferro-boron abrasion-resistant alloy and preparation process and use method thereof |
| 10/09/2013 | CN103341492A Roller for rolling large profile steel and manufacturing technology of roller |
| 10/09/2013 | CN102443740B Alloy steel nitride and manufacture method thereof |
| 10/09/2013 | CN102392190B Grid section used for sintering acid mine |
| 10/09/2013 | CN101798826B Integral-type excavator bucket and manufacturing method thereof |
| 10/03/2013 | WO2013146781A1 NdFeB-BASED SINTERED MAGNET |
| 10/03/2013 | WO2013146217A1 Sintered member, pinion gear for starter, and method for manufacturing both |
| 10/03/2013 | WO2013146073A1 Process for producing sintered r-t-b magnet |
| 10/03/2013 | WO2013143022A1 Unoriented silicon steel and method for manufacturing same |
| 10/02/2013 | EP2644729A2 Steel plate with excellent hydrogen induced cracking resistance, and manufacturing method of the same |
| 10/02/2013 | CN203222610U Magnesium injection molten iron nodulizing bag |
| 10/02/2013 | CN103339277A Method for producing r-t-b system sintered magnet |
| 10/02/2013 | CN103338879A Powder metal component impregnated with ceria and/or yttria and method of manufacture |
| 10/02/2013 | CN103334067A Ti-Ta-Hf system Fe-based amorphous alloy thin strip and preparation method therefor |
| 10/02/2013 | CN103334060A Graphite tool steel used for metal calendaring and manufacturing method of graphite tool steel |
| 10/02/2013 | CN103334055A Pipeline steel with resistance against carbon dioxide and hydrogen sulfide corrosion and preparation method thereof |
| 10/02/2013 | CN103334054A Economical aluminium-containing hot extrusion mold steel and preparation, heat treatment and surface treatment method thereof |
| 10/02/2013 | CN103334052A High-thermal conductivity high-abrasion resistance hot stamping die steel and preparation method thereof |
| 10/02/2013 | CN103334051A Hot rolling H-shape steel with Z-direction property for building and production method thereof |
| 10/02/2013 | CN103334050A Process utilizing sheet billet continuous casting to manufacture low aluminum silicon calm carbon structural steel |
| 10/02/2013 | CN103334049A High carbon hard wire rod production method |
| 10/02/2013 | CN103334048A Crack-resistant ductile iron for sintering machine fence and manufacturing method thereof |
| 10/02/2013 | CN103334047A Spheroidizing ladle cover provided with drainage device |
| 10/02/2013 | CN103334046A Method for improving toughness of wear-resistant alloy material |
| 10/02/2013 | CN103331585A Method for manufacturing isothermal quenching spheroidal graphite cast iron large-scale heavy-load gear |
| 10/02/2013 | CN103331449A Ultrahigh-plasticity double-size-distribution superfine crystal/micrometer crystal block iron material and preparation method thereof |
| 10/02/2013 | CN103331439A Turnover type balling ladle cover |
| 10/02/2013 | CN102282279B Method for producing R-T-B sintered magnet |
| 10/02/2013 | CN102230123B Chromium-based modified wear-resistant cast iron and preparation method thereof |
| 09/26/2013 | WO2013141880A1 Amorphous alloy powder feedstock processing |
| 09/26/2013 | US20130251585 Sintered alloy and production method therefor |
| 09/25/2013 | CN103329224A Method of producing R-T-B sintered magnet |
| 09/25/2013 | CN103320842A Method for preparing high-silicon steel ribbon through using electric brush composite plating method and continuous silicon steel ribbon preparing device |
| 09/25/2013 | CN103320722A Hardening and tempering type high-strength hydrogen sulfide-resistant steel for petroleum pipe, and manufacturing method of steel |
| 09/25/2013 | CN103320720A Vanadium-containing high-boron high-chromium wear-resistant alloy and preparation method thereof |
| 09/25/2013 | CN103320714A High-temperature-wearing-resisting aluminum-containing alloy steel and preparation method thereof |
| 09/25/2013 | CN103320711A Seamless steel tube and manufacturing method thereof |
| 09/25/2013 | CN103320709A Cold-work die steel material and alloy alterant |
| 09/25/2013 | CN103320708A Offshore platform rack steel with thickness of more than or equal to 114 mm, and production method thereof |
| 09/25/2013 | CN103320706A Double rear-earth modified heat-resistant steel and preparation method thereof |
| 09/25/2013 | CN103320704A High performance bearing steel and production method thereof |
| 09/25/2013 | CN103320700A 1500MPa steel for vehicle safety piece and production method of 1500MPa steel |
| 09/25/2013 | CN103320691A Manufacturing method for Q345 series coil plates |
| 09/25/2013 | CN103320688A New process for producing low-alloy structural steel by adding ferro-vanadium-nitride |
| 09/25/2013 | CN103320683A Process for producing hot-rolled acid-pickled 610 L automobile frame steel strip with thin gauge and high elongation |
| 09/25/2013 | CN103320680A Nodular cast iron and preparation method thereof |
| 09/25/2013 | CN103320677A Spheroidal graphite cast iron and manufacturing method thereof |
| 09/25/2013 | CN103320675A 300 DEG C-350 DEG C high-temperature resistant alloy material and casting method of 300 DEG C-350 DEG C high-temperature compressor pressure-containing member |
| 09/25/2013 | CN103320674A Carbide-carrying austempered ductile iron and quenching technology thereof |
| 09/25/2013 | CN103320673A High-temperature-oxidation-resisting alloy steel and preparation method thereof |
| 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 | CN102644018B Smelting process used for plate blanks of medium and heavy plates of hydrogen induced cracking resistant pipeline steel |
| 09/25/2013 | CN102634717B Manufacturing method for steel ingot of axle steel |
| 09/25/2013 | CN102453824B Method for producing nickel-iron alloy by using laterite nickel mine |
| 09/25/2013 | CN101838775B High ductility medium carbon abrasion resistant steel |
| 09/19/2013 | WO2013137135A1 Rare-earth permanent magnet, rare-earth permanent magnet manufacturing method, and rare-earth permanent magnet manufacturing device |
| 09/19/2013 | WO2013137134A1 Rare earth permanent magnet and method for producing rare earth permanent magnet |
| 09/19/2013 | WO2013137133A1 Rare-earth permanent magnet and method for manufacturing rare-earth permanent magnet |
| 09/19/2013 | WO2013137132A1 Rare earth permanent magnet and rare earth permanent magnet production method |
| 09/19/2013 | WO2013136962A1 Magnetic material sputtering target and manufacturing method thereof |
| 09/19/2013 | WO2013134895A1 Non-oriented electrical steel plate and manufacturing process therefor |
| 09/19/2013 | US20130243699 Biodegradable Magnetic Nanoparticles and Related Methods |
| 09/18/2013 | CN103305768A Steel for low-carbon equivalent seawater corrosion resisting ocean platform rack and production method of steel |
| 09/18/2013 | CN103305766A High-strength high-plasticity ferritic stainless steel and manufacturing method thereof |
| 09/18/2013 | CN103305764A Cold-work die round steel and manufacturing method thereof |
| 09/18/2013 | CN103305763A Steel alloy die material for high-speed upsetter and preparation method of steel alloy die |
| 09/18/2013 | CN103305762A Cold-rolled dual-phase sheet steel with 400MPa-level tensile strength and preparation method thereof |
| 09/18/2013 | CN103305756A Formula of roller arm in aluminum-plating wire equipment |
| 09/18/2013 | CN103305752A Large-thickness high-performance SA302GrC steel plate and production method thereof |
| 09/18/2013 | CN103305747A Steel bar or steel claw section for electric conduction of electrolytic aluminum and manufacturing method of steel bar or steel claw section |
| 09/18/2013 | CN103305743A Method for preparing pure iron and iron-phosphorus magnetically soft alloy product through powder metallurgy process |
| 09/18/2013 | CN103305651A Smelting process of alloy nodular cast iron roll |
| 09/18/2013 | CN103302250A Edging roll mould and process for producing edging roll by adopting edging roll mould |
| 09/18/2013 | CN103300706A Manufacturing method of high-performance wok |
| 09/18/2013 | CN102888485B Modificator for changing growth morphology of primary austenite of gray cast irons, preparation method and application thereof |
| 09/18/2013 | CN102676905B Method for smelting ultra-pure austenite nuclear grade stainless steel |
| 09/18/2013 | CN102605270B Manufacturing method of super double-phase stainless steel impeller shaft |
| 09/18/2013 | CN102592777B Low-cost sintered neodymium iron boron magnet and production method thereof |
| 09/18/2013 | CN102534406B Medium manganese steel and preparation method thereof |
| 09/18/2013 | CN102433510B Iron-based powder metallurgy alloy with high strength and high toughness and preparation method thereof |
| 09/18/2013 | CN102430582B Manufacturing method of roll sleeve of ultra-strong wear-resistant high alloy steel roll squeezer |
| 09/18/2013 | CN102191350B Method for preparing cast tube molten iron |
| 09/11/2013 | CN203184606U Manual-operation pouring stream inoculation device |
| 09/11/2013 | CN103290334A Atmosphere corrosion resistance seamless steel tube containing rare earth and production method thereof |
| 09/11/2013 | CN103290331A High-strength and high-corrosion-resistance steel plate material with yield strength of 450 MPa and production method thereof |
| 09/11/2013 | CN103290329A High strength and toughness alloy cast steel bucket tooth of excavator and production technologies thereof |
| 09/11/2013 | CN103290318A Wolfram carbide hard alloy and preparation method thereof |