Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120)
02/2014
02/26/2014CN103602919A Forging heat resistant steel, manufacturing method thereof, forged parts and manufacturing method thereof
02/26/2014CN103602918A High-strength wear-resistant corrosion-resistant antimagnetic stainless steel
02/26/2014CN103602917A Manufacturing method of magnetic control connection member for pressurized water reactor nuclear island
02/26/2014CN103602916A Manufacturing method of magnetic control connection member for pressurized water reactor nuclear island
02/26/2014CN103602915A High-carbon high-chromium duplex stainless steel
02/26/2014CN103602914A Economical high-performance duplex stainless steel with stable structure
02/26/2014CN103602913A X80 steel hot-rolled plate coil for natural gas pipelines and preparation method thereof
02/26/2014CN103602912A Wear-resistant alloy steel lining plate material and preparation method thereof
02/26/2014CN103602911A High-temperature resistant and wear-resistant alloy steel lining plate material and preparation method thereof
02/26/2014CN103602910A Production method of low-cost and high-strength steel plate
02/26/2014CN103602909A Powder metallurgy antifriction bearing and preparation method thereof
02/26/2014CN103602908A Excavator bucket tooth and preparation process of excavator bucket teeth
02/26/2014CN103602907A Powder metallurgy slewing bearing and preparation method thereof
02/26/2014CN103602906A Heating element for synthesizing diamond
02/26/2014CN103602905A Rare earth containing, high-strength and high-toughness seamless steel pipe for L555Q pipeline and production method thereof
02/26/2014CN103602904A Rare earth containing low-cost seamless steel pipe for L415N pipeline and production method thereof
02/26/2014CN103602903A High-strength carbon dioxide corrosion-resisting oil well pipe and manufacturing method thereof
02/26/2014CN103602902A Powder metallurgy pressure-resistant composite metal material and preparation method thereof
02/26/2014CN103602901A 520MPa-level hot-rolled steel plate for concrete mixing tank
02/26/2014CN103602900A Novel powder metallurgy flange and preparation method thereof
02/26/2014CN103602899A Powder metallurgy alloy material and preparation method thereof
02/26/2014CN103602898A Novel powder metallurgy automobile-transmission gearshift-mechanism base and preparation method thereof
02/26/2014CN103602897A Powder metallurgy hydraulic pump side plate and preparation method thereof
02/26/2014CN103602896A Production method of boron-containing tube-making steel band
02/26/2014CN103602895A High-hole-expansion-ratio steel plate with tensile strength of 780 MPa and manufacturing process thereof
02/26/2014CN103602894A High-toughness high-strength steel plate and manufacturing method thereof
02/26/2014CN103602893A Hot work die steel having performance improved by adding niobium
02/26/2014CN103602892A Thick steel plate and production method thereof
02/26/2014CN103602891A High-toughness steel plate with yield strength at 460 MPa grade and production method thereof
02/26/2014CN103602890A High-hole-expansion-ratio steel plate with tensile strength of 540 MPa and manufacturing process thereof
02/26/2014CN103602889A Strengthening and toughening process for ultra-low carbon steel with relatively high carbon and manganese contents
02/26/2014CN103602888A Low-compression ratio hot-rolled 9Ni steel thick plate and manufacturing method thereof
02/26/2014CN103602887A Powder metallurgy bit matrix and preparation method thereof
02/26/2014CN103602886A Method for preparation of 1.5mm grade Fe-Si alloy strip by twin-roll thin strip continuous casting
02/26/2014CN103602885A Low-alloy and high-strength steel plate and production method thereof
02/26/2014CN103602884A Ultralow-carbon aluminum-killed steel plate and production method thereof
02/26/2014CN103602877A Production of ferro-alloys
02/26/2014CN103602799A Preparation method of soft zone-free cold-rolling roller
02/26/2014CN103602798A Method for heat treatment on high-hardness semi-steel roller
02/26/2014CN103602795A Heat treatment method for high-strength high-hardness marine-corrosion-resistant non-magnetic steel
02/26/2014CN103600081A Powder metallurgical refrigeration compressor valve plate and manufacture method thereof
02/26/2014CN103600075A Powder metallurgical cobalt-free iron-base alloy and manufacture method thereof
02/26/2014CN103600074A Powder metallurgy abrasion-resistant alloy and manufacturing method thereof
02/26/2014CN103600065A Powder metallurgy gear and manufacturing method thereof
02/26/2014CN103600064A Powder metallurgy intake-exhaust valve seat ring and manufacturing method thereof
02/26/2014CN103600062A Powder metallurgy alloy composite material and manufacturing method thereof
02/26/2014CN103600060A Powder metallurgy metal bearing material and manufacturing method thereof
02/26/2014CN103600048A Continuous open casting technique of high alloy stainless steel
02/26/2014CN102994911B Austenite composite antibacterial stainless steel and preparation method thereof
02/26/2014CN102994692B Smelting process of high-boron high-speed steel roller material
02/26/2014CN102808140B High saturation induction density iron-based nanocrystalline magnetically soft alloy material and preparation method thereof
02/26/2014CN102719725B Sintered neodymium iron boron waste remoulding method
02/26/2014CN102639741B Thick welded steel pipe having excellent low-temperature toughness, method for producing thick welded steel pipe having excellent low-temperature toughness, and steel sheet for producing thick welded steel pipe
02/26/2014CN102605263B Ultrahigh-hardness high-toughness malleable spray-formed high-speed steel and preparation method thereof
02/26/2014CN102605259B Low alloy cast steel material for brake hub and heat treatment method of the material
02/26/2014CN102534417B Preparation method of high-performance bridge weathering steel containing Mo
02/26/2014CN102489681B Centrifugally cast cross-wedge rolling die and manufacturing method thereof
02/26/2014CN102341520B Case-hardened steel component, and method for producing same
02/26/2014CN102222873B Energy-saving bolt-type strain clamp
02/25/2014US8657972 Development of a high strength high toughness steel
02/25/2014US8657971 Brake disk excellent in temper softening resistance and toughness
02/25/2014US8657970 Hot-rolled steel sheet excellent in fatigue properties and stretch-flange formability and method for manufacturing the same
02/25/2014US8657969 High-strength galvanized steel sheet with excellent formability and method for manufacturing the same
02/25/2014CA2490700C Oil country tubular goods excellent in collapse characteristics after expansion and method of production thereof
02/20/2014WO2014027682A1 Steel sheet for hot pressing use, method for producing same, and hot press steel sheet member
02/20/2014WO2014027641A1 Method for producing rare-earth sintered magnet and molding device
02/20/2014WO2014027638A1 Method for producing rare-earth sintered magnet and molding device
02/20/2014WO2014027636A1 Fe-Co ALLOY SPUTTERING TARGET MATERIAL AND METHOD FOR PRODUCING SAME, AND SOFT MAGNETIC THIN FILM LAYER AND PERPENDICULAR MAGNETIC RECORDING MEDIUM USING SAME
02/20/2014WO2014027463A1 Steel material for high frequency induction hardening
02/20/2014WO2014027452A1 Method for manufacturing non-oriented electromagnetic steel sheet
02/20/2014WO2014026299A1 Anchoring system for a support in construction, and method for using same
02/20/2014US20140050941 High strength steel sheet having excellent formability and stability of mechanical properties and method for manufacturing the same
02/20/2014US20140049354 New composition and method
02/19/2014EP2698444A1 Hot-rolled steel sheet and manufacturing method thereof
02/19/2014EP2698443A1 Hot-rolled steel for gaseous nitrocarburizing and manufacturing method thereof
02/19/2014EP2698442A1 High-strength cold-rolled steel sheet with excellent local formability, and manufacturing method therefor
02/19/2014EP2698441A1 High-strength non-oriented magnetic steel sheet
02/19/2014EP2698440A1 High-strength cold-rolled steel sheet with excellent local formability, and manufacturing method therefor
02/19/2014EP2697399A1 Alloy, magnet core and process for producing a strip made of an alloy
02/19/2014CN103597117A Steel sheet for hot pressing and method for producing hot pressed member using same
02/19/2014CN103597110A Steel sheet for can with high barrel-part buckling strength under external pressure and with excellent formability and excellent surface properties after forming, and process for producing same
02/19/2014CN103597109A 铁素体系不锈钢 Ferritic stainless steel
02/19/2014CN103597108A RH diffusion source, and method for producing R-T-B-based sintered magnet using same
02/19/2014CN103597107A Hot press molded article, method for producing same, and thin steel sheet for hot press molding
02/19/2014CN103597106A Hot press molded article, method for producing same, and thin steel sheet for hot press molding
02/19/2014CN103597102A Process for producing high-strength hot-dip galvanized steel sheet with excellent material-quality stability, processability, and deposit appearance
02/19/2014CN103597100A High-strength flat steel product and method for producing same
02/19/2014CN103594217A Isotropic bonded rare earth permanent magnetic material and preparation method thereof
02/19/2014CN103591196A Yaw brake pad made of various materials
02/19/2014CN103589972A Low-cost low alloy steel for resistance to dew point corrosion of sulfuric acid as well as production process and application of low alloy steel
02/19/2014CN103589971A Bucket tooth and production method thereof
02/19/2014CN103589970A Bar material for non-quenched and tempered shaft part and manufacturing process of bar material
02/19/2014CN103589969A Production method of quenched and tempered high-intensity Q890D super-thick steel plate
02/19/2014CN103589968A Enhanced seamless deformed steel and preparation process thereof
02/19/2014CN103589967A Rare earth-containing powder metallurgy natural gas engine valve seat ring
02/19/2014CN103589966A Smelting technology of steel for petrolic valve case
02/19/2014CN103589965A Low-alloy high-strength cast steel and preparation method thereof
02/19/2014CN103589964A Steel plate used for 750MPa-grade hot rolling concrete agitator tank
02/19/2014CN103589963A Hot-continuous-rolled steel belt for oil casing of grade N80 and production method thereof
02/19/2014CN103589962A Composite wear-resistant material obtained by casting method and preparation method of composite wear-resistant material
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