Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
07/2011
07/27/2011CN101451214B Large thickness novel anti-hydrogen sulfide steel and method for producing the same
07/27/2011CN101370947B Method and device for the continuous creation of a bainite structure in a carbon steel, especially a strip steel
07/21/2011WO2011087112A1 Cold-rolled steel plate and method for producing same
07/21/2011WO2011087108A1 Steel plate having excellent moldability and shape retention, and method for producing same
07/21/2011WO2011087107A1 Cold-rolled steel plate and method for producing same
07/21/2011US20110174418 Aluminum plated steel sheet for rapid heating hot-stamping, production method of the same and rapid heating hot-stamping method by using this steel sheet
07/21/2011DE102010004823A1 Producing metallic molded element for motor vehicle components, comprises providing board made of steel alloy, homogeneously heating the board and then deforming to molded element in pressing tool, and annealing the element in the tool
07/20/2011EP1642988B1 Warm rolling method
07/20/2011CN1685072B Hot milled wire rod excelling in wire drawability and enabling avoiding heat treatment before wire drawing
07/20/2011CN102131945A Case hardening steel, carburized component, and method for producing case hardening steel
07/20/2011CN102129907A Nanocrystalline soft magnetic alloy iron core with high initial permeability and low remanence and preparation method thereof
07/20/2011CN102127716A Low-temperature heating oriented electrical steel with good surface coating and production method thereof
07/20/2011CN102127714A Nano-cluster-strengthened iron-base superalloy
07/20/2011CN102127709A Low-temperature slab heating high magnetic induction grain-oriented silicon steel and production method thereof
07/20/2011CN102127708A Method for producing oriented electrical steel by heating low-temperature slab
07/20/2011CN102127703A Method for manufacturing cold-rolled non-oriented electrical steel for frequency-variable air conditioner
07/20/2011CN102127702A Method for preparing low-S high-grade non-oriented electrical steel
07/20/2011CN102127701A Production method of hot rolled steel coil for ship building
07/20/2011CN102127700A Method for producing hot rolled steel coils for ship building
07/20/2011CN102127699A Method for producing hot rolled steel coils
07/20/2011CN102127698A Production method of X100 steel grade elbow pipes and pipe fittings
07/20/2011CN102127697A Production method of X70 steel grade elbow pipes and pipe fittings
07/20/2011CN102127696A Method for producing hot rolled steel coils for ship building
07/20/2011CN102127695A Production method of hot rolled steel coil
07/20/2011CN102127694A Method for producing hot rolled steel coils for ship building
07/20/2011CN102127693A Method for producing hot-rolled steel coil
07/20/2011CN102127692A Production method of hot rolled steel coil
07/20/2011CN102127691A Method for producing hot rolled steel coil
07/20/2011CN102127689A Production method of hot rolled steel coil for ship building
07/20/2011CN102127688A Method for producing hot-rolled steel coil for shipbuilding
07/20/2011CN102127687A Method for producing hot-rolled steel coil
07/20/2011CN102127685A Method for producing hot-rolled steel coil for shipbuilding
07/20/2011CN102127684A Method for producing hot rolled steel coils
07/20/2011CN102127683A Method for producing hot-rolled steel coil
07/20/2011CN102127682A Method for producing hot rolled steel coils for ship building
07/20/2011CN102127681A Production method of hot rolled steel coil
07/20/2011CN102127680A Production method of hot rolled steel coil for shipbuilding
07/20/2011CN102127679A Method for producing hot-rolled steel coil
07/20/2011CN102127678A Method for producing hot rolled steel coil
07/20/2011CN102127677A Method for producing hot rolled steel coil
07/20/2011CN102127676A Method for producing hot rolled steel coils
07/20/2011CN102127675A Steel plate warm formed parts with high efficiency, low energy consumption and high quality and production method thereof
07/20/2011CN102127627A Method for obtaining high hardness and low deformation crack inclination of carbon tool steel
07/20/2011CN102127622A Method for improving magnetic characteristics of orientated silicon steel by heat treatment of pulse electric field
07/20/2011CN101831594B Method for manufacturing high-strength steel plate used in low-temperature environment
07/20/2011CN101824582B Oriented electrical steel plate band adopting multivariate inhibiting agent and production method thereof
07/20/2011CN101775555B Forging alloy steel and manufacturing process thereof
07/20/2011CN101775543B HB400-grade wear-resisting steel plate and production method thereof
07/20/2011CN101775471B Method for producing low-carbon steel hot dip steel plate
07/20/2011CN101748255B Method for improving forming performance of 430 ferrite stainless strip steel
07/20/2011CN101724789B Austenitic stainless steel medium-thick plate and manufacture method thereof
07/20/2011CN101709403B Method for preparing brass seamless tubes by adopting hollow ingots
07/20/2011CN101701326B High strength and high toughness ship plate steel with thick specification and production method thereof
07/20/2011CN101698922B Reinforced steel shot and preparation method thereof
07/20/2011CN101691639B Alloy vessel plate production method thereof
07/20/2011CN101691630B Method for manufacturing seamless steel tubes
07/20/2011CN101676425B Martensite abrasion-resistant steel with high strength
07/20/2011CN101665864B Production method of high speed steel prehardening materials
07/20/2011CN101649422B Niobium microalloyed hot rolled steel band and manufacturing method thereof
07/20/2011CN101634001B CT90-class steel for continuous oil pipe and method for manufacturing same
07/20/2011CN101633996B 700MPa-grade high strength and high toughness hardened and tempered steel plate with low cost and manufacturing method thereof
07/20/2011CN101603147B Hard tinned plate suitable for stamping processing and production process thereof
07/20/2011CN101586210B High strength enamel steel and producing technology and enamel firing technology thereof
07/20/2011CN101376946B Manufacturing method of straight welding petroleum casing pipe of steel for 110ksi steel grade
07/20/2011CN101376943B Manufacturing method of straight welding petroleum casing pipe of steel for 80ksi steel grade
07/20/2011CN101353766B Grooving corrosion resistant high strength steel for ERW soldering sleeve, sleeve and production method
07/20/2011CN101270438B Normalized steel for resistance welding petroleum case pipe with low yield ratio, resistance welding casing tube and its manufacturing method
07/19/2011US7981223 Electrical steel; controlling concentration of bismuth; annealing, cold rolling, hot rolling, heating, decarboxylation; process control
07/14/2011US20110168304 Method for manufacturing high strength steel plate
07/14/2011US20110168303 High tensile strength steel for container and producing method of the same
07/14/2011US20110168300 Manufacturing method for very high-strength cold-rolled dual-phase steel sheets and sheets so produced
07/13/2011EP2343392A1 Method for preparing a stainless steel wire, rope and/or strand
07/13/2011EP1786936B1 Method for press quenching components consisting of sheet steel
07/13/2011EP1314791B1 Low carbon martensitic stainless steel and method for production thereof
07/13/2011CN102124133A High-tensile strength steel and manufacturing method thereof
07/13/2011CN102121082A Production method of reinforcing steel bar used as stirrup
07/13/2011CN102121081A Method for manufacturing delivery steel pipe serving acid environment
07/13/2011CN102121061A Rolling method of Cr17 type ferritic stainless steel wire
07/13/2011CN102121060A Method for improving strength and toughness of high-strength steel for coal machine by utilizing ultra-fast cooling and steel plate self-tempering technologies
07/13/2011CN101622370B Thick high-strength steel plate and process for producing the same
07/13/2011CN101395292B Refractory steel material with excellent welded-joint toughness and process for producing the same
07/13/2011CN101358323B Seamless steel tube for 27SiMnB steel, cylinder and production method thereof
07/13/2011CN101358320B Steel for controlled rolling and controlled cooling platform and production method thereof
07/13/2011CN101343715B High-strength high-ductility X70 thick-wall seamless pipeline steel and manufacturing method
07/13/2011CN101306429B Preparation method of micron and sub-micron austenite crystal material
07/13/2011CN101238226B Method for producing a grain-oriented electrical steel strip
07/12/2011US7976651 Weldable steel of high strength and high toughness, and method of producing members using the same
07/12/2011US7976650 Method for production of sheet of austenitic iron/carbon/manganese steel and sheets produced thus
07/12/2011US7976647 Very high mechanical strength steel and method for making a sheet thereof coated with zinc or zinc alloy
07/12/2011CA2599868C Steel for oil well pipe having excellent sulfide stress cracking resistance and method for manufacturing seamless steel pipe for oil well
07/07/2011WO2011082280A1 Endoprosthesis containing multi-phase ferrous steel
07/07/2011WO2011081386A2 Non-oriented electrical steel sheet having superior magnetic properties and a production method therefor
07/07/2011WO2011081360A2 Ultra-high-strength steel wire having excellent resistance to delayed fracture and manufacturing method thereof
07/07/2011WO2011081350A2 High strength steel sheet having excellent resistance to post weld heat treatment and method for manufacturing same
07/07/2011WO2011081349A2 High strength steel sheet having excellent brittle crack resistance and method for manufacturing same
07/07/2011WO2011081331A2 Martensitic stainless steel produced by a twin roll strip casting process and method for manufacturing same
07/07/2011WO2011079341A2 Thermomechanical treatment method
07/07/2011WO2011040723A3 Low-core-loss, high-magnetic-flux density, grain-oriented electrical steel sheet and production method therefor
07/07/2011WO2011037403A3 High-carbon soft wire rod not requiring softening treatment and manufacturing method thereof
07/07/2011US20110163512 Steering tie rod end made of steel and method of manufacturing the same
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