Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120) |
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10/04/2012 | CA2824463A1 High-strength austenitic stainless steel for high-pressure hydrogen gas |
10/03/2012 | EP2505684A1 Gear and method for producing same |
10/03/2012 | EP2505683A1 Welded steel pipe for linepipe with superior compressive strength and excellent sour resistance, and process for producing same |
10/03/2012 | EP2505682A1 Welded steel pipe for linepipe with superior compressive strength, and process for producing same |
10/03/2012 | EP2505681A1 Welded steel pipe for linepipe with superior compressive strength and superior toughness, and process for producing same |
10/03/2012 | EP2504122A2 Alloy, overlay, and methods thereof |
10/03/2012 | CN102714081A Corrosion-resistant magnet and method for producing the same |
10/03/2012 | CN102712984A Music string |
10/03/2012 | CN102712983A Cold-rolled steel plate and method for producing same |
10/03/2012 | CN102712982A Steel plate having excellent moldability and shape retention, and method for producing same |
10/03/2012 | CN102712981A Cold-rolled steel plate and method for producing same |
10/03/2012 | CN102712980A High-strength cold-rolled steel sheet, and process for production thereof |
10/03/2012 | CN102712979A High-strength hot-dip galvanized steel sheet reduced in burr formation and process for producing same |
10/03/2012 | CN102712978A High-strength hot-dip galvanized steel sheet with excellent processability and spot weldability and process for producing same |
10/03/2012 | CN102712977A High-strength hot-dip galvanized steel sheet with excellent processability and impact resistance and process for producing same |
10/03/2012 | CN102712976A Steel material for thermal cutting using oxygen |
10/03/2012 | CN102712975A Austenitic stainless steel tube having excellent steam oxidation resistance, and method for producing same |
10/03/2012 | CN102712974A Cold-rolled steel plate having excellent post-aging moldability and shape retention |
10/03/2012 | CN102712973A High-strength steel plate having excellent formability, and production method for same |
10/03/2012 | CN102712972A High-strength steel plate and method for producing same |
10/03/2012 | CN102712971A Duplex stainless steel having excellent alkali resistance |
10/03/2012 | CN102712963A Method for producing hot-rolled high carbon steel sheet |
10/03/2012 | CN102712961A Manufacturing galvannealed sheets by heat-treating electrolytically finished sheets |
10/03/2012 | CN102712171A High strength hot dip galvanised steel strip |
10/03/2012 | CN102712080A Saw wire |
10/03/2012 | CN102712063A Weld structure having resistance to brittle crack propagation |
10/03/2012 | CN102710039A Automobile starting motor rotor and method for producing same |
10/03/2012 | CN102705477A High-precision speed-regulating sliding gear ring and preparation method for same |
10/03/2012 | CN102703976A Polycrystalline silicon furnace |
10/03/2012 | CN102703908A Heat treatment method of impact piston |
10/03/2012 | CN102703839A High-strength free-cutting steel |
10/03/2012 | CN102703838A Production process for PSL-2 grade non-tempered N80 steel grade oil casing pipes |
10/03/2012 | CN102703837A Nano-structured lath martensite steel and preparation method thereof |
10/03/2012 | CN102703836A Manufacturing method for low temperature-used seamless steel tubes |
10/03/2012 | CN102703835A Hot-work die steel for aluminum die-casting mould |
10/03/2012 | CN102703834A Grain-refined gear steel and production process thereof |
10/03/2012 | CN102703833A Stainless steel material |
10/03/2012 | CN102703832A Forging process for thermal power rotor |
10/03/2012 | CN102703831A Cu-contained and Cr-controlled seamless steel tube for nuclear power station and production method for Cu-contained and Cr-controlled seamless steel tube |
10/03/2012 | CN102703830A Heavy wall steel pipes with excellent toughness at low temperature and sulfide stress corrosion cracking resistance |
10/03/2012 | CN102703829A Cl<-> point corrosion resistant super martensitic stainless steel and heat treatment method thereof |
10/03/2012 | CN102703828A Novel shockproof strip material of steam generator of nuclear power station and preparation method thereof |
10/03/2012 | CN102703827A Heat treatment process of wear resistant steel |
10/03/2012 | CN102703826A Ti-B-R compound micro-alloying high-tenacity bending die steel and preparation method thereof |
10/03/2012 | CN102703825A Preparation method of improved 30CrMnSi steel |
10/03/2012 | CN102703824A Non hardened and tempered state hot-rolled steel strip with yield strength higher than 900MPa and preparation method thereof |
10/03/2012 | CN102703823A High-speed steel for composite roll collar |
10/03/2012 | CN102703822A Preparation method of high-speed steel for composite roll collar |
10/03/2012 | CN102703821A Heat treatment process of heat resistant steel for sintering machine grates |
10/03/2012 | CN102703820A Heat resistant steel for sintering machine grates |
10/03/2012 | CN102703819A Wear-resisting steel |
10/03/2012 | CN102703818A Material for overweight ring forging and manufacturing process for ring forging |
10/03/2012 | CN102703817A Free-machining pinion steel and production technique thereof |
10/03/2012 | CN102703816A High-carbon low-alloy wear-resistant ball steel and production process thereof |
10/03/2012 | CN102703815A 600 Mpa grade hot-rolling dual-phase steel and preparation method thereof |
10/03/2012 | CN102703814A Pressure vessel steel plate and manufacturing method thereof |
10/03/2012 | CN102703813A Vanadium and titanium compound microalloyed steel bar and production method thereof |
10/03/2012 | CN102703812A Titanium microalloyed 500-MPa high-strength steel bar and production method thereof |
10/03/2012 | CN102703811A Titanium micro-alloyed 400MPa grade high-strength steel bar and production method thereof |
10/03/2012 | CN102703810A Automobile steel with low carbon equivalent and production method thereof |
10/03/2012 | CN102703809A Hot-rolled steel and manufacturing method thereof |
10/03/2012 | CN102703808A Steel for 300MPa-grade automobile structural part and production method for steel |
10/03/2012 | CN102703807A Steel with minus 80-degree C impact absorbing energy no less than 100J for ocean engineering and production method thereof |
10/03/2012 | CN102703806A Seamless tube for nuclear auxiliary system and production method for seamless tube |
10/03/2012 | CN102703805A Normalized ship plate steel and production method thereof |
10/03/2012 | CN102703804A Production method of wire rod for high-strength prestressed steel bar |
10/03/2012 | CN102703803A Globular pearlite type hot rolled coil and production method thereof |
10/03/2012 | CN102703794A Method for vacuum induction argon bottom blowing smelting high-performance magnetic material |
10/03/2012 | CN102703685A Method for smelting low-nickel matte through vulcanizing calines in rotary furnace |
10/03/2012 | CN102703665A Preparation method of nano-structure strip martensitic ultra-high-strength steel plate |
10/03/2012 | CN102703652A Heat treatment process of hot-work-die steel for aluminum die-casting mould |
10/03/2012 | CN102703645A Process for refining and slagging steel cord |
10/03/2012 | CN102699645A Isothermal normalizing process for gear of wind driven generator |
10/03/2012 | CN102699628A Method for producing seamless steel pipe for hydrogen-sulfide corrosion resisting pipeline with diameter of 508mm |
10/03/2012 | CN102699294A Electromagnetic solidification Nd-Fe-B permanent magnet rapid-solidification sheet and preparation method thereof |
10/03/2012 | CN102699031A 900 MPa grade ultrahigh-toughness low alloy steel and manufacture method thereof |
10/03/2012 | CN102699029A Manufacturing method for easily pickled steel with low yield ratio by thin slab casting and rolling |
10/03/2012 | CN102699022A Control method for limit specification steel roll hot rolling by single-stand steekle mill |
10/03/2012 | CN102214510B Ferronickel soft magnetic material and manufacturing method thereof |
10/03/2012 | CN102206785B Twinning induced plasticity alloy steel with columnar crystal structure and preparation method thereof |
10/03/2012 | CN102154564B Method for smelting and preparing vanadium iron alloy by taking Panxi vanadium as raw material |
10/03/2012 | CN102146547B Alloy steel roller and manufacturing process thereof |
10/03/2012 | CN102134675B Non-oriented electrical steel for thin slab continuous casting-continuous rolling production and method thereof |
10/03/2012 | CN102126120B Method for producing upper and lower blades of edge cutting machine |
10/03/2012 | CN102115850B Multi-component low-alloyed large-scale wear-resistant cast steel hammerhead and preparation process thereof |
10/03/2012 | CN102061426B 400-420mm large-thickness low-alloy high-strength constructional steel and production method thereof |
10/03/2012 | CN102061424B Super-thick Q390GJC-Z35 steel plate for high-rise buildings and production method thereof |
10/03/2012 | CN102061369B Method for preparing chloride ion corrosion resistant quake-proof bar |
10/03/2012 | CN102041438B Low-alloy high-strength structural-steel extra-thick board Q460C and production method thereof |
10/03/2012 | CN102021295B Cold-rolling steel belt for flux-cored wire and manufacture method thereof |
10/03/2012 | CN101962737B Multi-element alloyed ultrahigh-strength sucker rod steel and manufacturing method thereof |
10/03/2012 | CN101947870B Corrosion-resistant rod composite material and preparation method thereof |
10/03/2012 | CN101942616B Bainite steel plate with high elongation, high strength and low carbon and production method thereof |
10/03/2012 | CN101689416B R-T-B sintered magnet |
10/03/2012 | CN101652492B High-strength welded steel pipe having weld metal excelling in low-temperature cracking resistance and process for manufacturing the same |
10/03/2012 | CN101627142B Cold rolled and continuously annealed high strength steel strip and method for producing said steel |
10/03/2012 | CN101595234B Steel sheet for cans, hot-rolled steel sheet to be used as the base metal and processes for production of both |
10/03/2012 | CN101528970B Method for manufacturing flat steel products from a multiphase steel microalloyed with boron |
10/03/2012 | CN101512033B Fire-resistant steel excellent in high-temperature strength, toughness and reheat embrittlement resistance and process for production of the same |
10/03/2012 | CN101120113B High strength hot rolled steel sheet excellent in bore expanding workability and method for production thereof |