Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120)
07/2012
07/25/2012CN102605249A Manganese and boron series low-carbon microalloy high-strength non-quenched and tempered steel and production method thereof
07/25/2012CN102605248A Thick steel plates for high heat input welding and production method thereof
07/25/2012CN102605247A High-heat-input welding thick steel plate and manufacturing method thereof
07/25/2012CN102605246A Steel for low-strain-ageing sensitive welding structure and production method of steel
07/25/2012CN102605245A Ni-free normalized type Q370R pressure vessel steel plate and manufacturing method thereof
07/25/2012CN102605244A Painted steel for corrosion-resistant structure and production method of painted steel
07/25/2012CN102605243A Wind power H-beams and production method thereof
07/25/2012CN102605242A Steel capable of resisting hydrogen-induced cracking for pressure containers and manufacturing method for steel
07/25/2012CN102605241A Normalizing type 16MnDR low temperature pressure vessel steel plate and manufacturing method thereof
07/25/2012CN102605240A High-strength and high-plasticity dual-phase steel and manufacturing method thereof
07/25/2012CN102605239A Low sulfur steel and production method thereof
07/25/2012CN102605238A 50kg grade normalized steel plate with good SR (stress relieving annealing) resistance characteristic and manufacturing method thereof
07/25/2012CN102605237A High-strength cold-rolled low-carbon phosphorus boron steel and production method thereof
07/25/2012CN102605236A Method of producing level-410 rare earth contained steel pipes for ships
07/25/2012CN102605235A High-collapse resistance hot stretch-reducing electric welding (SEW) petroleum casing pipe and manufacturing method thereof
07/25/2012CN102605234A 400HB-grade wear-resistant steel and method for manufacturing same
07/25/2012CN102605231A Method for smelting niobium steel and vanadium steel
07/25/2012CN102601367A Heat treatment method of radiation or multi-pole orientation magnet ring
07/25/2012CN102601354A Powder metallurgical material for pressing and sintering air intake seat ring
07/25/2012CN102601282A Z2CND18-12N control nitrogen stainless steel forging technology
07/25/2012CN102280240B Method for preparing sintered NdFeB with low dysprosium content and high performance
07/25/2012CN102181798B Processing method of high yield ratio and high plasticity steel product for prestressed concrete
07/25/2012CN102181797B Method for processing steel strand for prestressed concrete
07/25/2012CN102181784B Method for preparing 610 MPa thick steel plate with high strength and high tenacity
07/25/2012CN102140607B Method for manufacturing hot rolled {111}(112) oriented high-silicon steel plates
07/25/2012CN102127701B Production method of hot rolled steel coil for ship building
07/25/2012CN102127700B Method for producing hot rolled steel coils for ship building
07/25/2012CN102127694B Method for producing hot rolled steel coils for ship building
07/25/2012CN102127691B Method for producing hot rolled steel coil
07/25/2012CN102127688B Method for producing hot-rolled steel coil for shipbuilding
07/25/2012CN102127686B Method for producing hot rolled steel coils for ship building
07/25/2012CN102127685B Method for producing hot-rolled steel coil for shipbuilding
07/25/2012CN102127682B Method for producing hot rolled steel coils for ship building
07/25/2012CN102127676B Method for producing hot rolled steel coils
07/25/2012CN102080192B Low-yield ratio, high-plasticity, ultrafine-grain and high-strength steel and manufacturing method thereof
07/25/2012CN102051529B Carbon steel and preparation method thereof
07/25/2012CN102011068B 800 MPa-grade low-yield-ratio structural steel plate and production method thereof
07/25/2012CN102002628B Method for manufacturing low-carbon steel sheets
07/25/2012CN101985722B Pipeline steel plate with low yield ratio, fine grains and high strength and production method thereof
07/25/2012CN101984125B Alloy material resistant to sulphuric acid at 220 DEG C. and method for preparing the same
07/25/2012CN101982556B Machining method of traveling thrust wheel of large excavator
07/25/2012CN101979696B Method for refining and casting steel for low-temperature nickel pressure container
07/25/2012CN101979695B Chromium-free high boron iron-based casting alloy and preparation method
07/25/2012CN101967611B High-toughness austenite boiler steel
07/25/2012CN101956132B Steel having excellent toughness in welding heat affected zone, and manufacturing method thereof
07/25/2012CN101956125B Flexible manufacture method of steel in thin gauge, low alloy and high tensity series
07/25/2012CN101948986B High-quality alloy steel bar and production process thereof
07/25/2012CN101942617B Novel corrosion resistant, wear resistant and high temperature resistant alloy material and production process thereof
07/25/2012CN101942611B Alloy pump for conveying chlorine-containing mixed acid liquid
07/25/2012CN101935804B Seamless steel tube of 135 ksi steel grade for high-tenacity drill rod
07/25/2012CN101927658B Casting method of rim and spoke assembly
07/25/2012CN101906590B Austenitic heat-resistance steel with strengthened nano precipitated phase and manufacturing method thereof
07/25/2012CN101906571B CSP process-based manufacturing method of economical hot-rolled dual-phase steel with high surface quality
07/25/2012CN101892438B Rare earth low alloy steel with high-temperature sulfuric acid dew point corrosion resistance
07/25/2012CN101886219B Particle-reinforced antiwear steel composite material and preparation method thereof
07/25/2012CN101855379B Fire-resistant steel material with excellent resistance to reheat embrittlement and with low-temperature toughness at welded heat-affected parts, and manufacturing method thereof
07/25/2012CN101845603B Ferrite stainless steel for high temperature-end part of exhaust system of automobile and manufacturing method thereof
07/25/2012CN101845584B Fresh-water corrosion resistant steel for U-shaped steel sheet pile and method for producing same
07/25/2012CN101818312B Corrosion resistant heavy rail steel with excellent strength-toughness, fatigue resistance and abrasive resistance
07/25/2012CN101787489B Easy-welding low-carbon bainitic steel and manufacturing method thereof
07/25/2012CN101784681B Secondary-hardening gear steel
07/25/2012CN101772584B High-strength steel sheet
07/25/2012CN101717891B High-strength easy-molding atmospheric corrosion resistance steel for transmission tower and preparation method thereof
07/25/2012CN101663411B Process for producing bend pipe for line pipe and bend pipe for line pipe
07/25/2012CN101656133B Rotating machine with sintered magnet and method for producing sintered magnet
07/25/2012CN101555556B Method for comprehensively utilizing laterite-type nickel ore
07/25/2012CN101484601B Hot-pressed steel sheet member and process for production thereof
07/25/2012CN101270452B Connection material for flashing light jointing of hadfield steel cross frog and carbon steel rails, and production method thereof
07/24/2012US8226780 Ferrite-austenite stainless steel sheet excellent in ridging resistance and workability and process for manufacturing the same
07/24/2012CA2600747C High tensile strength steel material having excellent delayed fracture resistance property, and method of manufacturing the same
07/24/2012CA2465604C Ferritic stainless steel having high temperature creep resistance
07/19/2012WO2012096350A1 Grain-oriented magnetic steel sheet and process for manufacturing same
07/19/2012WO2012096336A1 Press forming method for steel plate
07/19/2012WO2012095532A1 High thermal diffusivity and high wear resistance tool steel
07/19/2012WO2012095232A1 Method for producing a hot-rolled flat steel product
07/19/2012WO2012069035A3 Energy-storing container made of lightweight steel
07/19/2012US20120183807 Iron-chromium based brazing filler metal
07/19/2012US20120183431 Structural steel material and steel structure with high corrosion resistance
07/19/2012US20120183430 High hardness, high toughness iron-base alloys and methods for making same
07/19/2012US20120180912 High strength and high toughness cast steel material and method for producing the same
07/19/2012US20120180909 High strength cold rolled steel sheet and method for manufacturing the same
07/19/2012DE102011008787A1 Exhaust system for motor cars, comprises a component of coated steel sheet, which is made from a carbon steel, where the coating comprises nickel and the carbon steel includes unalloyed structural steels
07/19/2012CA2824238A1 High thermal diffusivity and high wear resistance tool steel
07/19/2012CA2823095A1 Method for producing a hot-rolled flat steel product
07/18/2012EP2477199A1 Molded rare-earth magnet and process for producing same
07/18/2012EP2476772A1 High thermal diffusivity and high wear resistance tool steel
07/18/2012EP2476771A1 Two-phase stainless steel
07/18/2012CN1780927B Sintered sliding member and working implement-connecting apparatus
07/18/2012CN102597543A High-strength bolt
07/18/2012CN102597322A Hot-pressed member and process for producing same
07/18/2012CN102597292A High-strength steel sheet having excellent processability and paint bake hardenability, and method for producing same
07/18/2012CN102597291A Wire material for saw wire and method for producing same
07/18/2012CN102597290A Hot-rolled steel bar or wire rod
07/18/2012CN102597289A Steel sheet for cans having excellent surface roughening resistance, and method for producing same
07/18/2012CN102597288A Ferrous metal sheet and manufacturing method therefor
07/18/2012CN102596481A Welded structural member and welding method
07/18/2012CN102596453A Soft magnetic powder, powder granules, dust core, electromagnetic component, and method for producing dust core
07/18/2012CN102592777A Low-cost sintered neodymium iron boron magnet and production method thereof
07/18/2012CN102592771A Novel antitheft tag magnetic material, production process thereof and acoustic magnetic antitheft tag
07/18/2012CN102586702A Black surface steel production method with using condition of roll forming oiling-free process