| Patents for C22C 33 - Making ferrous alloys (11,268) |
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| 03/12/2008 | CN101139677A Method for producing inconel by submerged arc furnace |
| 03/12/2008 | CN100374605C Power-matallurgy valve seat inserts |
| 03/12/2008 | CN100374600C Producing medium carbon magnganese iron by duplexing rocking furnace method |
| 03/11/2008 | US7341689 Pre-alloyed iron based powder |
| 03/05/2008 | EP1641581A4 A method and apparatus for the production of metal compounds |
| 03/05/2008 | CN201031249Y Ferrotitanium line products rapid heating device |
| 03/05/2008 | CN201031248Y Ferrotitanium line products smelting device |
| 03/05/2008 | CN201031247Y Ferrotitanium line products smelting complete equipment |
| 03/05/2008 | CN201031238Y Oxygen spray pistol used for steel-smelting furnace |
| 03/05/2008 | CN101135030A Weather-resistant hot rolled narrow steel strip and method for manufacturing same |
| 03/05/2008 | CN101135029A Yield strength 700MPa grade atmospheric corrosion resistant steel and method for manufacturing same |
| 03/05/2008 | CN101135027A Gyratory breaker mortar rolled chemical composition control and thermal treatment process |
| 03/05/2008 | CN101135026A Vertical grinding hollow abrading-resistant ball chemical composition control and thermal treatment process |
| 03/05/2008 | CN101135023A Nano TiO2 oxide containing ferroalloy intermediate and preparation method and uses thereof |
| 03/05/2008 | CN101135022A Cr-Mo alloyed steel round billet produced by arc continuous casting machine and technique thereof |
| 03/05/2008 | CN100372965C Steel for high temperature resistant anticorrosion heat insulating oil pipe and its manufacturing method |
| 03/05/2008 | CN100372963C Attrition sheet for automatic speed-variator wearing plate and its production method |
| 03/04/2008 | US7338630 Free-cutting steel and fuel injection system component using the same |
| 02/28/2008 | US20080050581 Rare Earth Magnet and Method for Manufacturing Same |
| 02/27/2008 | EP1465213B1 Method for producing r-t-b based rare earth element permanent magnet |
| 02/27/2008 | CN101133175A Improved abrasion-proof alloy |
| 02/21/2008 | US20080041496 Method Of Producing Soft Magnetic Material, Soft Magnetic Powder, And Dust Core |
| 02/20/2008 | EP1890301A1 Method for producing rare earth permanent magnet material |
| 02/20/2008 | CN101128613A Steel strip for spreading knives, doctor blades and crepe scrapers and powder metallurgical method for producing the same |
| 02/20/2008 | CN101126141A Meta-bainite steel and application of the same in railway |
| 02/20/2008 | CN101126138A Method for smelting chromium-nickel-iron alloy from stainless steel dust-removing ash |
| 02/20/2008 | CN100370050C Guide and guard roller for guiding steel billet in high speed wire rolling machine and its making process |
| 02/14/2008 | WO2008017848A1 Improved powder metallurgy composition |
| 02/13/2008 | EP1886747A1 Process for producing aluminum composite material |
| 02/13/2008 | CN101124058A 不锈钢粉末 Stainless steel powder |
| 02/13/2008 | CN101121997A FeZrYB series massive amorphous alloy with excellent soft magnetic property and preparation method thereof |
| 02/13/2008 | CN101121994A Cast steel for oil-well rig hoisting system and manufacturing method thereof |
| 02/13/2008 | CN101121993A Method for producing high abrasion-proof austenitic manganese steel hammer |
| 02/13/2008 | CN101121989A Sulfur-iron alloy and its preparing process and application |
| 02/13/2008 | CN101121988A Smelting method for steel used for low-temperature pressure container |
| 02/13/2008 | CN101121987A Smelting method for titanium-containing austenitic stainless steel |
| 02/13/2008 | CN100368584C Rare earth magnetostrictive material preparation method and the material |
| 02/13/2008 | CN100368583C Thin gauge gas cylinder steel with good stamping performance and process for producing same |
| 02/13/2008 | CN100368578C Heat-exchanging ladle-to-ladle method for producing low-carbon, micro-carbon iron alloy |
| 02/13/2008 | CN100368577C Process for producing fine type steel crystal particle |
| 02/12/2008 | US7329380 Method of controlling the dimensional change when sintering an iron-based powder mixture |
| 02/06/2008 | EP1884574A1 R-T-B system rare earth permanent magnet |
| 02/06/2008 | CN101117693A FeZrNdYB nano block alloy having hard magnetism and method for preparing same |
| 02/06/2008 | CN101117692A Non-magnetic high-strength stainless steel material and method for manufacturing the same |
| 02/06/2008 | CN101117691A Technique for processing heavy caliber pipes |
| 02/06/2008 | CN101117689A 03Cr22Ni4NbN austenite-ferritic stainless steel and production technology therefor |
| 02/06/2008 | CN101117688A Novel stainless bearing steel and method for manufacturing same |
| 02/06/2008 | CN101117687A Copper-carbon easy-cutting stainless steel and method for making same |
| 02/06/2008 | CN101117686A Mabe wear-resistant steel |
| 02/06/2008 | CN101117681A Austenitic gray cast iron material and method for making same |
| 02/06/2008 | CN100366779C Stone material cutting saw blade steel and its manufacturing method |
| 02/06/2008 | CN100366777C High temperature creep-resisting furnace shell material and its preparation method |
| 02/06/2008 | CN100366389C Manufacturing method of high-carbon chromium iron slag grinded by wind power and sand-blast material |
| 02/06/2008 | CN100366363C Methods for producing raw material alloy for rare earth magnet, powder and sintered magnet |
| 02/05/2008 | CA2402515C Powder-metallurgic method for the production of highly dense shaped parts |
| 01/31/2008 | WO2008013581A2 High carbon surface densified sintered steel products and method of production therefor |
| 01/31/2008 | US20080025866 Iron-Based Sintered Alloy, Iron-Based Sintered-Alloy Member and Production Process for Them |
| 01/31/2008 | US20080025863 Compacting an iron-based powder containing at least 0.4 wt % C to form an article with a core density of 6.8-7.6 g/cc; presintering below 1950 degrees C.; surface densification to a depth of 0.1-2.0 mm; and sintering; uniform high hardness directly from sintering with no need for carbon enrichment |
| 01/30/2008 | EP1882050A2 Powder-metallurgically produced, wear-resistant material |
| 01/30/2008 | CN101113749A Method for making high intensity non-magnetic non-corrodible steel tauten screw rod |
| 01/30/2008 | CN101113505A Method for smelting nickel iron by direct furnace-entering of thermal sintering ore |
| 01/30/2008 | CN101113485A High-calcium non-silicon aluminium calcium magnesium ferrous alloy for steel-smelting deoxidization and method for preparing the same |
| 01/29/2008 | US7322187 Metallurgical powder compositions and articles and methods utilizing the same |
| 01/24/2008 | WO2008010767A1 Iron-based powder |
| 01/23/2008 | EP1880782A2 A method for evaluating a raw alloy for a magnet |
| 01/23/2008 | CN101111617A Iron-based powder combination |
| 01/23/2008 | CN101109245A Iron basis powder metallurgy lock case of lock for two-wind door and manufacturing technique thereof |
| 01/23/2008 | CN101109059A High resistivity high magnetic conduction martensite-ferrite diphasic stainless steel and thermal treatment technique thereof |
| 01/23/2008 | CN101108291A Method of manufacturing FeAl intermetallic compound filter material |
| 01/23/2008 | CN100363525C Preparation method for casting wear-resistant high speed steel |
| 01/23/2008 | CN100363521C Improved high temp. anti-oxidizability cast-iron |
| 01/23/2008 | CN100363520C Technology of producing low magnesium oxide rare earth calcium magnesium silicon iron alloy by thermo liquid joint production and thread feeding method |
| 01/17/2008 | WO2008006800A1 Metallic powder mixtures |
| 01/16/2008 | CN101107376A Sintered material, iron-based sintered sliding material and process for producing the same, sliding member and process for producing the same, and connecting apparatus |
| 01/16/2008 | CN101105996A High temperature low magnetic field large magnetic material and its preparation method thereof |
| 01/16/2008 | CN101104909A OOCr13Ni5Mo ultralow-carbon martensitic stainless steel and producing method thereof |
| 01/16/2008 | CN101104908A Iron-base shape memory alloy locked key and its manufacturing and using method |
| 01/16/2008 | CN101104906A Low-carbon bainite steel and preparation method thereof |
| 01/16/2008 | CN101104905A Method for using electrode in nickel-iron smelting mine heat furnace |
| 01/16/2008 | CN101104904A Method for determining mine heat furnace smelting nickel-iron reducer dosing |
| 01/16/2008 | CN101104903A Low-temperature titanium addition method for preparing TiCp/Fe composite material by in situ reaction casting method |
| 01/16/2008 | CN101104874A Method for processing refined-smelting ladle furnace deep desulfurization finally slag |
| 01/16/2008 | CN100362125C A method of controlling the dimensional change when sintering an iron-based power mixture |
| 01/15/2008 | CA2317529C A method to produce compacted graphite iron |
| 01/10/2008 | WO2008004585A1 Member produced by powder forging, powder mixture for powder forging, process for producing member by powder forging, and fracture splitting connecting rod obtained from the same |
| 01/10/2008 | US20080006353 Active energy absorbing cellular metals and method of manufacturing and using the same |
| 01/10/2008 | CA2658051A1 Powder forged member, powder mixture for powder forging, method for producing powder forged member, and fracture split type connecting rod using the same |
| 01/09/2008 | EP1874972A2 Intermetallic bonded diamond composite composition and methods of forming articles from same |
| 01/09/2008 | EP1397524B1 Cold work steel |
| 01/09/2008 | EP1269267B1 Method for preparation of iron-based powder and iron-based powder |
| 01/09/2008 | CN101100726A Abrasive sheet material |
| 01/09/2008 | CN101100725A Heat resistance stainless steel and smelting method thereof |
| 01/09/2008 | CN101100723A Meta-bainite steel and application of the same in railway |
| 01/09/2008 | CN101100721A Ni29Co18 controlled-expansion alloy and preparation method thereof |
| 01/09/2008 | CN101100720A Technique for smelting vanadium iron from calcium vanadate |
| 01/09/2008 | CN100360264C Powder composition comprising aggregates of iron powder and addditives and flow agent and process for its preparation |
| 01/08/2008 | US7316752 R-T-B-C based rare-earth magnetic powder and bonded magnet |
| 01/02/2008 | CN101096741A Rare-earth containing high temperature oxidation resistant ferritic stainless steel and method for preparing same |
| 01/02/2008 | CN101096738A Steel plate with low welding crack sensitivity and production method thereof |
| 01/02/2008 | CN101096736A Clean steel and manufacturing method |