Patents for C22C 33 - Making ferrous alloys (11,268)
04/2014
04/09/2014CN103710646A Ultrahard low-chromium-content grinding body and manufacturing method thereof
04/09/2014CN103710645A 3Cr17NiMo die steel easy to chip and preparation method of steel
04/09/2014CN103710643A Heat-resisting seamless stainless steel pipe for high-pressure boiler and manufacturing method thereof
04/09/2014CN103710642A Exhaust valve head material having excellent high-temperature strength and preparation method thereof
04/09/2014CN103710641A High-carbon 17-7pH stainless steel and preparation method thereof
04/09/2014CN103710638A Martensitic stainless steel and manufacturing method thereof
04/09/2014CN103710628A Large-thickness hydrogenating 14Cr1MoR steel plate and production method thereof
04/09/2014CN103710623A Spiral nut for powder metallurgy pneumatic rock drill and machining process thereof
04/09/2014CN103710620A Large-thickness steel plate for low-temperature pressure container and production process thereof
04/09/2014CN103710617A 340MPa-level hot-dipped zinc-alloy alloy high-strength IF (Interstitial-Free) steel
04/09/2014CN103710615A Preparation method of wear-resistant lining board
04/09/2014CN103710613A High chromium alloy wear-resistance steel ball
04/09/2014CN103710612A Production method of casting-state ferrite-base ductile cast iron QT600-10
04/09/2014CN103710611A Short process casting alterant
04/09/2014CN103710610A High efficient short process casting alterant
04/09/2014CN103710609A High-quality high-strength cold heading steel and production method thereof
04/09/2014CN103710583A Magnesium-alumium-iron alloy for desulfurizing and deoxidizing agent and preparation method thereof
04/09/2014CN103710558A Preparation process of high-temperature self-lubricating material
04/09/2014CN102873329B Method for preparing large-size high-vanadium die steel by spray forming process
04/09/2014CN102758128B Method for producing deep-draw hot-rolled strip steel by micro carbon aluminium killed steel
04/09/2014CN102676921B Cold-resistant high-strength hot-rolled angle steel and production method thereof
04/09/2014CN102655966B Iron-based sintered powder metal for wear resistant applications
04/09/2014CN102528324B Method for preparing alloy powder for manufacturing tubular welding wire
04/09/2014CN102492891B Production and application of vermiculizer
04/09/2014CN102383034B Steel for 13-dwt vehicle axle housing and production method thereof
04/03/2014DE112012002439T5 Verfahren zur Verbesserung des Reduktionsgrads beim Schmelzen von Ferrolegierungen Method for improving the degree of reduction in melting ferroalloys
04/02/2014EP2712943A2 Cast iron with niobium and component
04/02/2014EP2712371A2 A martensitic antibacterial stainless steel and manufacturing method thereof
04/02/2014CN103703150A Hot-work tool steel and a process for making a hot-work tool steel
04/02/2014CN103695807A Ultrahigh-strength X100 pipeline steel plate with excellent crack resistance and preparation method thereof
04/02/2014CN103695803A Low-carbon-equivalent low-temperature-usable high-thickness toothed rack steel and manufacturing method thereof
04/02/2014CN103695796A High-strength and high-toughness stainless steel and preparation method thereof
04/02/2014CN103695795A Casting process of large-scale mining excavator part driving wheel
04/02/2014CN103695793A Large-sized non-quenched and tempered steel and smelting method thereof
04/02/2014CN103695792A High carbon alloy steel wear-resistance valve material and preparation method thereof
04/02/2014CN103695785A Steel for low-temperature and high-pressure pipeline connector and manufacturing method of continuous casting round billet thereof
04/02/2014CN103695781A Easily-cut copper-niobium composite steel and production method thereof
04/02/2014CN103695777A Thick steel plate with excellent tenacity for excellent-tenacity welding heat affected zone and manufacturing method thereof
04/02/2014CN103695776A Thick steel plate with low carbon equivalent and excellent welding heat affected zone toughness and manufacturing method of same
04/02/2014CN103695774A Hot-rolled low-hardness steel containing titanium and boron for high-strength fastener and production method thereof
04/02/2014CN103695770A Preparation process for precise die-casting die
04/02/2014CN103695768A Tungsten-molybdenum-iron alloy and preparation method for same
04/02/2014CN103695766A 440MPa-tensile-strength hot-rolled high-strength steel sheet and production method thereof
04/02/2014CN103695765A Cold-rolled medium manganese steel with high strength and high plasticity and preparation method thereof
04/02/2014CN103695761A Preparation method for anti-corrosion medium-low carbon Cr-Si-Mn martensitic cast steel
04/02/2014CN103695760A Alloy grey cast iron material for medium and high-pressure pump bodies
04/02/2014CN103695757A Short-process casting modificator
04/02/2014CN103695756A Semi-process non-oriented silicon steel produced by adopting thin slab continuous casting and continuous rolling and production method of silicon steel
04/02/2014CN103695755A Preparation method of electrical steel for automobile motor
04/02/2014CN103695590A Special vermiculizer for non-magnetic vermicular graphite cast iron, and preparation technology thereof
04/02/2014CN103691914A Bainite ledge casting technology
04/02/2014CN102912213B Preparation method of bainite-martensite automobile gear nodular cast iron
04/02/2014CN102912158B Method for smelting ferrovanadium by fine vanadium slag
04/02/2014CN102864366B Composite rare earth additive used for high Mn-Fe-based memory alloy
04/02/2014CN102796938B Method for increasing vanadium content of molten steel
04/02/2014CN102758144B Production method for steel ingot of large-sized high-nitrogen retaining ring steel
04/02/2014CN102719728B Technique for producing anti-acid pipeline steel by RH-LF-VD refining
04/02/2014CN102719593B Method for smelting ultra-low carbon steel
04/02/2014CN102560231B Ferrite nodular cast iron liquid for wind-power castings and preparation method thereof
04/02/2014CN102549685B Permanent magnet and manufacturing method for permanent magnet
04/02/2014CN102400029B Vacuum smelting method of alloy
04/02/2014CN101906585B High-performance building structure refractory steel plates and manufacturing method thereof
04/01/2014CA2632411C Lubricant for powder metallurgical compositions
03/2014
03/27/2014DE10252240B4 Kugelgraphitguss auf Ferritbasis und Verwendung desselben in einer Abgasanlage Nodular cast iron ferrite and use thereof in an exhaust system
03/26/2014CN103680794A Magnetic function material and manufacturing method thereof
03/26/2014CN103680788A Bonding rare-earth permanent-magnet alloy
03/26/2014CN103669466A Wear-resisting bucket tooth with adjustable tooth seam and manufacturing method of wear-resisting bucket tooth
03/26/2014CN103668333A Low-phosphorous low-sulfur gray pig iron formula for aluminum anode assembly and production method thereof
03/26/2014CN103668007A Microcrystalline alloy thin belt with high saturation magnetic induction strength and preparation method thereof
03/26/2014CN103668006A Nickel-free alloy and preparation method thereof
03/26/2014CN103668000A Rhenium-containing wear-resistant high-hardness alloy material for pump shafts and preparation method thereof
03/26/2014CN103667999A Wear-resisting alloy steel for mine breaking hammer and preparation method of wear-resisting alloy steel
03/26/2014CN103667997A Refractory steel material for pump valves and preparation method thereof
03/26/2014CN103667996A Wear-resistant low-carbon steel material for pumps and preparation method thereof
03/26/2014CN103667995A Corrosion-resistant alloy steel material for boracic acid recirculating pump iron and preparation method thereof
03/26/2014CN103667994A Stator alloy steel material for homogeneous mixing pumps and preparation method thereof
03/26/2014CN103667993A Wear-resistant alloy steel material for cam rotor pump rotors and preparation method thereof
03/26/2014CN103667990A Heat-resistant wear-resistant alloy steel lining board material and preparation method thereof
03/26/2014CN103667989A Rare-earth wear-resistant stainless steel lining board material and preparation method thereof
03/26/2014CN103667988A Alloy steel material for transfer pump pipelines and preparation method thereof
03/26/2014CN103667987A Alloy steel material for building pump truck and preparation method thereof
03/26/2014CN103667986A Anti-aging alloy steel material for valves and preparation method thereof
03/26/2014CN103667985A Alloy steel material for concrete pump truck delivery pipes and preparation method thereof
03/26/2014CN103667984A Chromium-nickel biphase stainless steel material for pump valves and preparation method thereof
03/26/2014CN103667983A High-strength spring steel and preparation method thereof
03/26/2014CN103667982A Corrosion-resistant, wear-resistant and high-temperature-resistant alloy steel material for pump valve and preparation method thereof
03/26/2014CN103667981A Alloy steel material for ball mill lining boards and preparation method thereof
03/26/2014CN103667980A Alloy steel material for high-speed bearings and preparation method thereof
03/26/2014CN103667973A Wear-resistant impact-resistant alloy steel material and preparation method thereof
03/26/2014CN103667972A Special abrasion-resistant alloy material and preparation method thereof
03/26/2014CN103667971A Seawater-corrosion-resistant alloy steel material for pump valves and preparation method thereof
03/26/2014CN103667970A High-heat-strength high-carbon steel material and preparation method thereof
03/26/2014CN103667966A Preparation method of high-hardness and low-loss electrical steel
03/26/2014CN103667965A Low-temperature-resistant corrosion-resistant alloy steel material and preparation method thereof
03/26/2014CN103667964A Medium carbon steel material for pump bearing and preparation method of medium carbon steel material
03/26/2014CN103667963A Low-carbon bainite construction steel with yield ratio of less than 0.8 and production method thereof
03/26/2014CN103667962A Wear-resistant alloy steel material for centrifugal pump blades and preparation method thereof
03/26/2014CN103667961A Corrosion-resistant wear-resistant alloy steel material for pump valves and preparation method thereof
03/26/2014CN103667960A Medium-carbon stainless steel material and preparation method thereof
03/26/2014CN103667957A ZG25MnSY6 casting material and method for preparing casting
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