Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
02/2014
02/05/2014EP2692875A1 Electroseamed steel pipe and process for producing same
02/05/2014CN203419955U Forging waste heat quenching device
02/05/2014CN103562424A Two-phase stainless steel exhibiting excellent corrosion resistance in weld
02/05/2014CN103562423A Steel with excellent rolling fatigue characteristics
02/05/2014CN103562418A Manufacturing method for unidirectional electromagnetic steel sheet
02/05/2014CN103562417A Method for the production of very-high-strength martensitic steel and sheet or part thus obtained
02/05/2014CN103556084A Oil sleeve steel ball and manufacturing process thereof
02/05/2014CN103556082A Production method of quenched and tempered high-strength Q620F super-thick steel plate
02/05/2014CN103556081A High-strength high-toughness wear-resisting steel for excavator bucket teeth and manufacturing method thereof
02/05/2014CN103556080A Mechanical property control method for directly rolling long profiles
02/05/2014CN103556078A Production method of quenched and tempered high-strength Q550D super-thick steel plate
02/05/2014CN103556077A Production method of quenched and tempered high-strength Q690D super-thick steel plate
02/05/2014CN103556076A Production method of quenched and tempered high-strength Q690F super-thick steel plate
02/05/2014CN103556075A Production method of quenched and tempered high-strength Q500D super-thick steel plate
02/05/2014CN103556074A Production method of hardened and tempered high-strength Q500E super-thick steel plate
02/05/2014CN103556071A High temperature radiation resistant magnetostriction alloy
02/05/2014CN103556069A Large-diameter seamless steel tube for high-pressure gas cylinders and manufacturing method thereof
02/05/2014CN103556066A Nickel-saving high-temperature-resistance seamless steel tube and production technology thereof
02/05/2014CN103556065A Production method of free-cutting plastic mould steel plate
02/05/2014CN103556061A Production method of quenched and tempered high-strength Q690E super-thick steel plate
02/05/2014CN103556060A Production method of quenched and tempered high-strength Q800E super-thick steel plate
02/05/2014CN103556055A Hot-rolled H-shaped steel for marine natural gas extraction platform structure and production method of hot-rolled H-shaped steel
02/05/2014CN103556054A High-strength medium-caliber thick-wall subsea pipeline and its manufacturing method
02/05/2014CN103556052A Automotive high manganese steel and manufacturing method thereof
02/05/2014CN103556051A Low-temperature steel realizing toughening based on C and Ni combined effect and preparation method thereof
02/05/2014CN103556049A Continuous annealing hard tin-plated base plate and production method thereof
02/05/2014CN103556048A Two-phase automobile steel plate with low yield-strength ratio and high strength and production method of two-phase automobile steel plate
02/05/2014CN103556047A 450MPa-grade hydrogen-induced-cracking-resistant pressure vessel steel plate and production method thereof
02/05/2014CN103556046A Fe-Ga based sheet material with high magnetostriction coefficient and preparation method thereof
02/05/2014CN103555913A Control method for improving plasticity of bearing steel wire rod
02/05/2014CN103555912A Method for producing core rod by utilizing 30Cr3MoV steel as raw material
02/05/2014CN103555911A Production method of quenched and tempered high-strength Q890E super-thick steel plate
02/05/2014CN103555910A Production method of quenched and tempered high-strength Q550F super-thick steel plate
02/05/2014CN103555909A Production method of quenched and tempered high-strength Q500F super-thick steel plate
02/05/2014CN103555908A Production method of quenched and tempered high-strength Q620E super-thick steel plate
02/05/2014CN103555907A Method for producing 4Cr5Mo2V hot work die steel
02/05/2014CN103555906A Method for eliminating residual stress of airplane skin panel
02/05/2014CN103555905A Method for obtaining ferritic heat-resisting steel with the characteristic of austenite structure
02/05/2014CN103555904A Thermal treatment process capable of improving low-temperature impact work of ASTM508Gr2 steel
02/05/2014CN103551823A Manufacturing method of high-rigidity stainless steel adjusting block
02/05/2014CN103551812A Cold bending processing method for austenitic stainless steel
02/05/2014CN102994716B Quenching self-tempering machining method
02/05/2014CN102758132B Method for manufacturing deep-drawing steel with high r value through continuous annealing of micro-carbon aluminum killed steel
02/05/2014CN102758071B Continuous annealing production method for steel for 280 MPa vehicle structure
02/05/2014CN102605232B Nanometer alloy cast iron grinding ball and preparation method thereof
02/04/2014US8641836 Steel plate for line pipe excellent in strength and ductility and method of production of same
02/04/2014US8641835 Iron alloy, iron-alloy member, and process for manufacturing the same
01/2014
01/30/2014WO2014017591A1 Oriented electromagnetic steel plate production method
01/30/2014WO2014017590A1 Oriented electromagnetic steel plate production method
01/30/2014WO2014017589A1 Method for producing oriented electromagnetic steel sheet
01/30/2014WO2014017074A1 Nitrocarburizable steel, nitrocarburized part, and methods for producing said nitrocarburizable steel and said nitrocarburized part
01/30/2014WO2014017057A1 THICK Ni-CONTAINING STEEL PLATE
01/30/2014WO2014016421A1 Cold-rolled flat steel product and method for the production thereof
01/30/2014WO2014015823A1 Ceramic-enameling steel and manufacturing method therefor
01/30/2014US20140030546 High-strength cold-rolled steel sheet having excellent local deformability and manufacturing method thereof
01/30/2014US20140027026 Method for producing hardened components with regions of different hardness and/or ductility
01/30/2014US20140027025 Wire rod having good superior surface properties, high strength, and high toughness, and a method for manufacturing same
01/30/2014US20140027022 Hot-rolled steel sheet for gas nitrocarburizing and manufacturing method thereof
01/30/2014DE112011104527T5 Massiver nanostrukturierter kohlenstoffarmer Stahl und Herstellungsverfahren dafür Massive nanostructured carbon steel and manufacturing method thereof
01/29/2014EP2690191A2 A method of production of high strength thin-gauge steel sheet excellent in elongation and hole expandability
01/29/2014EP2690188A1 Austenite system alloy pipe and manufacturing method thereof
01/29/2014EP2690184A1 Produit plat en acier laminé à froid et son procédé de fabrication
01/29/2014EP2689045A2 Hot-rolled steel sheet and associated production method
01/29/2014CN203411579U Multi-head wiredrawing annealing wire guide plate for wiredrawing annealing machine
01/29/2014CN103547689A Process and apparatus for preparing steel stock before hot rolling
01/29/2014CN103547403A Device for producing grain-oriented magnetic steel sheet and method for producing grain-oriented magnetic steel sheet
01/29/2014CN103540871A Low-carbon high-chromium high-nitrogen high-corrosion resistance steel and production method thereof
01/29/2014CN103540870A Production method of tempered high-strength Q550E super-thick steel plate
01/29/2014CN103540866A Production method of tempered high-strength Q800D super-thick steel plate
01/29/2014CN103540865A Production method of tempered high-strength Q620D super-thick steel plate
01/29/2014CN103540859A High heat-resistant stainless steel coffee pot material and preparation method thereof
01/29/2014CN103540850A Super-thick steel with yield strength >= 550MPa for engineering machinery as well as production method thereof
01/29/2014CN103540848A 420MPa normalizing super-thick steel plate, and preparation method thereof
01/29/2014CN103540846A Thin-gauge, ultra-low iron loss, low-noise and high-magnetic induction oriented silicon steel sheet and production method thereof
01/29/2014CN103540845A Hot-rolled thin plate enamelled steel with yield strength of 330 MPa and manufacturing method thereof
01/29/2014CN103540843A Subboundary-reinforced high-strength interstitial free steel containing Ti, and preparation method thereof
01/29/2014CN103540842A Production method of Cr-free high-strength quenched and tempered steel plate for spherical tank
01/29/2014CN103540840A Production method of Cr-free high-strength quenched and tempered steel plate for spherical tank
01/29/2014CN103540839A Production method of Cr-free high-strength quenched and tempered steel plate for spherical tank
01/29/2014CN103540838A Steel plate for low-temperature vessel and production method thereof
01/29/2014CN103540836A Steckle mill ultra-wide and heavy steel plate with high toughness and low alloy and production process thereof
01/29/2014CN103540834A X65MS/X70MS spiral submerged-arc welded pipe with excellent SSCC (Sulfide Stress Corrosion Cracking) stress corrosion resistance as well as manufacturing method thereof
01/29/2014CN103540796A Titanium alloy (TC11) rolled tube and preparation method thereof
01/29/2014CN103540730A Manufacturing method for 304 stainless steel penetrating pole with rigidity of not less than 320HB for nuclear power
01/29/2014CN103540729A Production method of wear-resistant steel with high toughness
01/29/2014CN103540728A Method of manual accelerated simulation of natural aging of rapid cooling steel plate
01/29/2014CN102899449B Production technology of extra thick steel plate with super detection standard
01/29/2014CN102796961B 600MPa high-performance fire-resistant aseismic reinforcing steel bar for concrete and production thereof
01/29/2014CN102776445B Lower bainite wear-resisting steel tube for slurry transport and production method of steel tube
01/29/2014CN102690971B High-strength copper alloy strip and preparation method thereof
01/29/2014CN102605294B Easily-welding high strength and toughness steel plate with yield strength of 800MPa
01/29/2014CN102534376B Steel plate with excellent low-temperature toughness in large heat-input weld heat affected zone and production method thereof
01/28/2014CA2781916C Process to manufacture grain-oriented electrical steel strip and grain-oriented electrical steel produced thereby
01/28/2014CA2657518C Hot bend pipe and a process for its manufacture
01/28/2014CA2620049C Seamless steel pipe for line pipe and a method for its manufacture
01/23/2014WO2014013615A1 Process for producing grain-oriented electrical steel sheet
01/23/2014US20140023550 Ferritic stainless steel sheet excellent in heat resistance and workability and method of production of same
01/23/2014US20140020795 Method for producing hardened structural elements
01/22/2014EP2687619A1 Steel wire material and process for producing same
01/22/2014EP2687617A1 High-purity ferritic stainless steel sheet with excellent corrosion resistance and anti-glare properties
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