Patents for C22C 38 - Ferrous alloys, e.g. steel alloys (43,120)
03/2014
03/19/2014CN103649343A Cold-rolled steel plate coated with zinc or a zinc alloy, method for manufacturing same, and use of such a steel plate
03/19/2014CN103648708A Austenite steel welded joint
03/19/2014CN103644391A Liquid conveying steel pipe with high strength
03/19/2014CN103643572A Production method for thermal treatment prestressed steel strand
03/19/2014CN103643195A Plasma spray coating on aluminum alloy base surface and preparation method thereof
03/19/2014CN103643177A Milling bowl liner plate of coal mill
03/19/2014CN103643176A Automobile axle material
03/19/2014CN103643175A Alloy steel material for valve core and preparation method thereof
03/19/2014CN103643174A Antimony scandium-containing high-hardness alloy steel material for bearings and preparation method thereof
03/19/2014CN103643173A High temperature corrosion-resistant pump valve alloy steel material and preparation method thereof
03/19/2014CN103643172A Large wear-resistant hollow grinding ball with good comprehensive mechanical property
03/19/2014CN103643171A Compound strengthened 22/15 chromated nickel high-strength corrosion resistant austenitic heat-resistant steel
03/19/2014CN103643170A High-strength high-toughness X100 pipeline steel hot-rolled coiled plate and production method thereof
03/19/2014CN103643169A Ce-containing exhaust valve head material and preparation method thereof
03/19/2014CN103643168A Exhaust valve head material and preparation method thereof
03/19/2014CN103643167A 700MPa-grade green-heat-treatment high-strength steel bar and processing method thereof
03/19/2014CN103643166A High temperature-resistant pump case alloy steel material and preparation method thereof
03/19/2014CN103643165A Erbium-containing pump shaft alloy steel material and preparation method thereof
03/19/2014CN103643164A Red-hardness high alloy steel material for pump valves and preparation method thereof
03/19/2014CN103643163A Alloy steel material for cobblestone crusher hammerhead and preparation method thereof
03/19/2014CN103643162A Alloy steel material for hammerhead of pendulum for mine and preparation method thereof
03/19/2014CN103643161A Vanadium-titanium ore rotary hearth furnace, high-temperature wear-resistant blade thereof for feeding and manufacturing method
03/19/2014CN103643160A High-performance 17-4 PH stainless steel and preparation method thereof
03/19/2014CN103643159A High-compactness corrosion-resistant stainless steel
03/19/2014CN103643158A Low-cost CrMnTi series gear steel and production method thereof
03/19/2014CN103643157A Copper-contained ferritic stainless steel coil and manufacturing method thereof
03/19/2014CN103643156A More than 630 MPa level high strength steel bar and application method thereof in reinforced concrete
03/19/2014CN103643155A Processing method of fast-quenched prestressed steel strand
03/19/2014CN103643154A Prestressed reinforcement with yield plateau, and its prestressed member construction method
03/19/2014CN103643153A Magnetic control connecting piece for pressurized water reactor nuclear island
03/19/2014CN103643152A Method for strengthening chromium-nickel austenitic heat resistant steel through composition of multiple nanometer precipitated phases
03/19/2014CN103643151A Hot rolled round steel for large-size niobium vanadium steel draw bar with 650MPa-level yield strength and heat treatment technology thereof
03/19/2014CN103643150A Hot rolled round steel for large-size vanadium steel draw bar with 650MPa-level yield strength and heat treatment technology thereof
03/19/2014CN103643149A Hot rolled round steel for large-size vanadium steel draw bar with 650MPa-level yield strength and heat treatment technology thereof
03/19/2014CN103643148A Formula and processing method of H-45 wear-resistant material
03/19/2014CN103643147A 600 MPa-grade-and-above high strength steel bars and reinforced concrete application method thereof
03/19/2014CN103643146A Chromium-molybdenum low-alloy prestress aluminum-cladding steel wire manufacturing method
03/19/2014CN103643145A 600MPa grade-and-more high-strength building steel bar and duct piece application method thereof
03/19/2014CN103643144A Nickel-saving type super duplex stainless steel and preparation method thereof
03/19/2014CN103643143A 600MPa-grade green-heat-treatment high-strength steel bar and processing method thereof
03/19/2014CN103643142A High-hardness stainless steel material for bearings and preparation method thereof
03/19/2014CN103643141A High-hardness alloy steel material for pump valves and preparation method thereof
03/19/2014CN103643140A Highly wear-resistant pump shaft medium carbon steel material and preparation method thereof
03/19/2014CN103643139A Alloy steel material for water pump bearings and preparation method thereof
03/19/2014CN103643138A Low-carbon manganese steel material for pump shafts and preparation method thereof
03/19/2014CN103643137A Alloy steel material for large-scale pump bearings and preparation method thereof
03/19/2014CN103643136A Ferritic stainless steel having excellent brazeability
03/19/2014CN103643135A PC steel bar with tensile strength of 2000 Mpa and above, and heat treatment method
03/19/2014CN103643134A Boride-particle-reinforced Fe-B-C alloy and preparation method thereof
03/19/2014CN103643133A Wear-resistant high-speed tool steel
03/19/2014CN103643132A High speed steel material for large-scale pump bearings and preparation method thereof
03/19/2014CN103643131A Steel wire for insulation and anticorrosion steel wire mesh, and application method thereof
03/19/2014CN103643130A High-tenacity alloy spring steel
03/19/2014CN103643129A High-speed tool steel
03/19/2014CN103643128A High speed steel material for high temperature pump bearings and preparation method thereof
03/19/2014CN103643127A Thick steel plate for 500 MPa-grade hydrogen-contacting devices and production method thereof
03/19/2014CN103643126A AISI4340 prestress steel bar manufacturing method
03/19/2014CN103643125A Steel bar for prestress concrete, and production process thereof
03/19/2014CN103643124A Processing method of above-600MPa-grade high-strength steel bar connection sleeve
03/19/2014CN103643123A Wheel steel applicable to railway wagon and wheel preparation method
03/19/2014CN103643122A 75Cr hot-rolled plate coil produced from thin sheet billets through continuous casting and continuous rolling and production method thereof
03/19/2014CN103643121A Zinc-plating steel strand for overhead guying, and production process thereof
03/19/2014CN103643120A Manufacturing method of high-toughness hot-rolled plate coil for welded gas cylinder
03/19/2014CN103643119A Hot-rolled and pickled steel plate for 210MPa-grade single-sided enamel and production method thereof
03/19/2014CN103643118A Hot-rolled and pickled steel plate for 380MPa-grade single-sided enamel and production method thereof
03/19/2014CN103643117A Ultra-low aluminum steel and smelting method thereof
03/19/2014CN103643116A Welding gas cylinder and manufacturing technology of hot rolled steel plate of welding gas bottle
03/19/2014CN103643115A Boron-containing steel with low yield ratio and preparation method therefor
03/19/2014CN103643114A Alloy steel for harvester blade and machining method of alloy steel
03/19/2014CN103643113A Tungsten dysprosium-containing manganese steel material for bearings and preparation method thereof
03/19/2014CN103643112A Alloy material for high temperature-resistant mine hammerhead and preparation method thereof
03/19/2014CN103643111A Easy-to-process stainless steel material for pump valves and preparation method thereof
03/19/2014CN103643110A Lightweight high-manganese steel liner plate for ball mill and manufacturing method of liner plate
03/19/2014CN103643106A Mother alloy smelting method
03/19/2014CN103643105A Method for manufacturing manganese steel pipes
03/19/2014CN103643103A Method for preparing tensile strength 700MPa grade hot-galvanizing phase transition induced plastic steel
03/19/2014CN103643056A Smelting method of low-carbon ferromanganese
03/19/2014CN103643041A Novel technology for preparing low vanadium-titanium alloy comminuted steel shot through vanadium and titanium iron concentrate
03/19/2014CN103643013A Cold treatment process of pressing plate of vehicle air conditioner
03/19/2014CN103642970A Smelting method of low-carbon aluminum killed steel
03/19/2014CN103642967A Method for producing high-chromium steel by converter
03/19/2014CN103639914A Superhard grinding tool and manufacturing method thereof
03/19/2014CN103639652A Production process of high temperature resistant fasteners
03/19/2014CN103639648A Machining process for internal combustion engine expansion breaking connecting rod
03/19/2014CN103639405A Metal matrix high temperature self-lubricating composite material and manufacturing method thereof
03/19/2014CN103639368A Casting method for large-size electric driving ship propeller bracket casting piece
03/19/2014CN103639363A Preparation method of large abrasion-proof hollow grinding ball
03/19/2014CN103639357A Preparation method of bowl milling liner plate of coal mill
03/19/2014CN103639231A Chromium-molybdenum low-alloy zinc-plating steel strand manufacturing method
03/19/2014CN103639198A Method for producing pipeline steel plate by continuous casting billet under condition of small reduction ratio
03/19/2014CN102965591B High-strength steel rolling hot-forming technology
03/19/2014CN102912101B Production process of 65 Mn spring steel wire rod and 65 Mn spring steel wire rod
03/19/2014CN102864375B Carbon steel seamless steel tube for nuclear power and production method thereof
03/19/2014CN102851616B 60 Kg-scale low temperature-quenched and tempered steel plate with good weldability and manufacture method thereof
03/19/2014CN102796948B Non-oriented electrical steel plate with extremely low content of Ti and smelting method for non-oriented electrical steel plate
03/19/2014CN102732783B H2S corrosion-resistant steel and preparation method thereof
03/19/2014CN102719757B Nickel-free high-toughness 80kg-grade high-strength steel and manufacturing method thereof
03/19/2014CN102719744B Steel for low-temperature structures and manufacture method of steel
03/19/2014CN102703803B Globular pearlite type hot rolled coil and production method thereof
03/19/2014CN102690992B Method for producing casing pipe for thickened oil thermal production well
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