Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120)
10/2012
10/10/2012CN102719751A High-strength cold-rolled hot-galvanized dual-phase steel plate and manufacture method thereof
10/10/2012CN102719750A Wear resistant steel and smelting method thereof
10/10/2012CN102719749A Steel for railway axle and production process for steel
10/10/2012CN102719748A Lining plate of tube mill and method for producing the same
10/10/2012CN102719747A Sulfate reducing bacteria corrosion-resistant oil well pipe and production method thereof
10/10/2012CN102719746A Iron-based nanocrystalline magnetically soft alloy material and preparation method thereof
10/10/2012CN102719745A High-strength low-temperature steel with high hydrogen induced cracking (HIC) and sulfide stress corrosion cracking (SSC) resistance and manufacturing method thereof
10/10/2012CN102719744A Steel for low-temperature structures and manufacture method of steel
10/10/2012CN102719743A Hot-rolled coil plate for oil casing and manufacturing method thereof
10/10/2012CN102719742A Limit-specification IF steel and furnace zone through plate method thereof
10/10/2012CN102719741A Hot-galvanized high-strength steel with 220MPa-level yield strength and production method thereof
10/10/2012CN102719740A Method for producing ultra-low carbon high-strength cold rolling sheet
10/10/2012CN102719739A Steel plate for wind power tower in low temperature and manufacturing method thereof
10/10/2012CN102719738A Hard tinned original plate with thin specification and manufacture method thereof
10/10/2012CN102719737A High-toughness normalizing steel plate with 460MPa yield strength and manufacturing method thereof
10/10/2012CN102719736A Steel with yield ratio of 0.9 or more used for ultra-fine grain slideway and production method thereof
10/10/2012CN102719735A Ultrafine-grain hot-rolling dual phase steel plate for automobile and production method thereof
10/10/2012CN102719734A Fe-Co-Gd permanent magnet alloy thin strip and formation method thereof
10/10/2012CN102719733A Manufacturing method for high-nickel steel
10/10/2012CN102719732A Hot-rolled high-strength dual phase steel plate and manufacturing method thereof
10/10/2012CN102719731A Secondarily cold-rolled shadow mask strip steel and manufacturing method thereof
10/10/2012CN102719730A Manufacturing method of high strength bluing strapping steel
10/10/2012CN102719729A Automotive low-carbon aluminum-killed steel sheet and production method thereof
10/10/2012CN102719728A Technique for producing anti-acid pipeline steel by RH-LF-VD refining
10/10/2012CN102719725A Sintered neodymium iron boron waste remoulding method
10/10/2012CN102719723A Formula of Cr38A alloy material
10/10/2012CN102719682A Smelting method of GH901 alloy
10/10/2012CN102719644A Forecasting method of inner and outer wall temperature difference of 9% Cr martensitic steel thick wall pipeline in heat treatment
10/10/2012CN102719638A Manufacturing method for sealing head of high strength austenite nickel iron chrome alloy
10/10/2012CN102719627A Heat treatment method of high-chromium martensitic stainless steel
10/10/2012CN102717045A Double-phase stainless steel continuous casting method
10/10/2012CN102716905A Method for producing cold-rolled sheet for surface coating and plating base plate
10/10/2012CN102345054B 120mm low temperature pressure vessel 16MnDR steel thick plate and production method thereof
10/10/2012CN102319845B Manufacturing process of forging stock of steel forging piece for oil extraction equipment in deep sea
10/10/2012CN102242322B Improved 40CrNiMo steel and preparation method thereof
10/10/2012CN102242316B H13 die steel and preparation method thereof
10/10/2012CN102242310B Precoating steel plate for building structure and production method thereof
10/10/2012CN102230131B 38CrMoAl steel and preparation method thereof
10/10/2012CN102230130B Wear-resistant plastic die steel and preparation method thereof
10/10/2012CN102220546B B-containing medium-carbon non-quenched and tempered steel and production method thereof
10/10/2012CN102191442B Steel for marine riser flange of marine deepwater drilling and manufacturing method of marine riser flange
10/10/2012CN102174683B Method for producing cold-rolling low-carbon aluminum killed steel with uniform through plate mechanical property
10/10/2012CN102094113B Heat treatment process of train buffer material
10/10/2012CN102086494B High-chromium martensitic heat-resistant steel and manufacturing method thereof
10/10/2012CN102059253B Integrated cast steel supporting roller
10/10/2012CN102041457B Austenitic stainless steel
10/10/2012CN102021483B Cold-rolled dual-phase steel plate with 1,200 MPa-level tensile strength and preparation method thereof
10/10/2012CN101883875B High-strength steel sheet with excellent low temperature toughness and manufacturing method thereof
10/10/2012CN101812647B Diphase stainless steel and manufacturing method thereof
10/10/2012CN101693985B Alloy material for manufacturing oil sprayer bushing
10/10/2012CN101586214B High-hardness high-wear-resistant powder metallurgy high-speed steel
10/10/2012CN101460646B High-strength composite steel sheet having excellent moldability and delayed fracture resistance
10/10/2012CN101270443B Novel casting alloy material for lockset medial axis components for manufacturing container
10/04/2012WO2012134529A1 Process for treating hydrocarbon streams
10/04/2012WO2012133911A1 Abrasion-resistant steel sheet exhibiting excellent resistance to stress corrosion cracking, and method for producing same
10/04/2012WO2012133910A1 Abrasion-resistant steel sheet exhibiting excellent resistance to stress corrosion cracking, and method for producing same
10/04/2012WO2012133908A1 Steel material with rust layer, exhibiting excellent weather resistance even in high-salt environments
10/04/2012WO2012133885A1 Spring and method for producing same
10/04/2012WO2012133879A1 Thick steel sheet having superior fatigue resistance properties in direction of sheet thickness, method for producing same, and fillet welded joint using said thick steel sheet
10/04/2012WO2012133872A1 Thick steel sheet having superior fatigue resistance properties in sheet thickness direction, method for producing same, and fillet welded joint using said thick steel sheet
10/04/2012WO2012133869A1 Method and device for producing si-containing cold rolled steel sheet
10/04/2012WO2012133837A1 Stainless steel sheet and method for manufacturing same
10/04/2012WO2012133833A1 Stainless-steel sheet for metal mask
10/04/2012WO2012133681A1 Ferrite stainless steel exhibiting excellent corrosion resistance and strength in weld zones, and tig-welded structure
10/04/2012WO2012133636A1 Bainite-containing high-strength hot-rolled steel plate with excellent isotropic workability and process for producing same
10/04/2012WO2012133574A1 Highly corrosion-resistant austenite stainless steel well-suited to brazing
10/04/2012WO2012133573A1 Ferritic stainless steel sheet having excellent heat resistance and processability, and method for producing same
10/04/2012WO2012133563A1 Cold rolled steel sheet and production method therefor
10/04/2012WO2012133558A1 Electroseamed steel pipe and process for producing same
10/04/2012WO2012133540A1 Hot-rolled steel sheet and production method therefor
10/04/2012WO2012133506A1 Ferritic stainless steel for biofuel supply system part, biofuel supply system part, ferritic stainless steel for exhaust heat recovery unit, and exhaust heat recovery unit
10/04/2012WO2012133291A1 Austenitic stainless steel
10/04/2012WO2012133244A1 Steel plate with excellent durability for band-shaped die-cutting blade, and band-shaped die-cutting blade
10/04/2012WO2012133166A1 Sputtering target for magnetic recording film
10/04/2012WO2012133057A1 High-strength steel sheet with excellent workability and manufacturing process therefor
10/04/2012WO2012132992A1 High-strength austenitic stainless steel for high-pressure hydrogen gas
10/04/2012WO2012132822A1 Bonded object of tungsten carbide-based superhard alloy and process for producing same
10/04/2012WO2012132821A1 Spring steel wire rod having excellent wire drawability and excellent fatigue characteristics after wire drawing, and spring steel wire having excellent fatigue characteristics and excellent spring formability
10/04/2012WO2012132786A1 Case hardening steel, method for producing same, and mechanical structural part using case hardening steel
10/04/2012WO2012132771A1 Bearing steel with excellent rolling fatigue characteristics, and bearing parts
10/04/2012WO2012132744A1 Steal gear wheel and method for manufacturing same
10/04/2012WO2012132743A1 Steel gear wheel and method for manufacturing same
10/04/2012WO2012132679A1 Cast austenitic stainless steel
10/04/2012WO2012132138A1 Method for adding zinc to molten steel and process for producing zinc-containing steel
10/04/2012WO2012130434A2 Method of heat treating a coated metal strip and heat treated coated metal strip
10/04/2012WO2012091413A3 Flux-cored arc welding wire for providing superior toughness and weldability to a welded joint at a low temperature, and welded joint using same
10/04/2012WO2012087045A3 Low iron loss high strength non-oriented electromagnetic steel sheet and method for manufacturing same
10/04/2012WO2012087016A3 Grain-oriented electric steel sheet having superior magnetic property and method for manufacturing same
10/04/2012US20120251379 Asymmetric rolling apparatus, asymmetric rolling method and rolled materials fabricated by using the same
10/04/2012US20120247625 Low yield ratio, high strength and high uniform elongation steel plate and method for manufacturing the same
10/04/2012US20120247621 Casting process, materials and apparatus, and castings produced therewith
10/04/2012US20120247619 Carburized steel and its process of manufacture
10/04/2012US20120247606 Low-Molybdenum, High-Strength Low-Alloy 80 ksi Steel Plates Formed by Temperature-Controlled Rolling Without Accelerated Cooling
10/04/2012US20120247605 Molybdenum-Free, High-Strength, Low-Alloy X80 Steel Plates Formed by Temperature-Controlled Rolling Without Accelerated Cooling
10/04/2012DE19758822B4 Wälzlager Rolling bearings
10/04/2012CA2831404A1 Hot-rolled steel sheet and production method thereof
10/04/2012CA2830586A1 Austenitic stainless cast steel
10/04/2012CA2829874A1 Austenitic stainless steel excellent in corrosion resistance and brazeability
10/04/2012CA2829753A1 Cold-rolled steel sheet and production method thereof
10/04/2012CA2827844A1 Bainite-containing-type high-strength hot-rolled steel sheet having excellent isotropic workability and manufacturing method thereof