Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
04/2014
04/02/2014CN103695817A Heat-treatable aluminum alloy synchronous-quenching thermal-forming process
04/02/2014CN103695816A Preparation method of metal composite plate
04/02/2014CN103695808A X120 high-grade pipeline steel hot-rolled steel plate and preparation method thereof
04/02/2014CN103695807A Ultrahigh-strength X100 pipeline steel plate with excellent crack resistance and preparation method thereof
04/02/2014CN103695805A High strength and high wear-resistance stainless steel wire and preparation method thereof
04/02/2014CN103695804A Steel used for petroleum vessel support and production method of the steel
04/02/2014CN103695803A Low-carbon-equivalent low-temperature-usable high-thickness toothed rack steel and manufacturing method thereof
04/02/2014CN103695802A High-molybdenum high-strength secondary hardening ultra-high-strength steel and preparation method thereof
04/02/2014CN103695801A High-toughness and high-weather-resistance steel and manufacturing method thereof
04/02/2014CN103695799A Production process of heat-resistance stainless steel seamless steel pipes with ultra-fine grains
04/02/2014CN103695791A High-magnetic strength oriented silicon steel and production method thereof
04/02/2014CN103695787A Weather-proof structural steel S355K2W thick plate and production method
04/02/2014CN103695786A Corrosion-resistant highly-extrusion-resistant petroleum casing and production method thereof
04/02/2014CN103695783A Ultra-low carbon bainite high-strength steel bar and production method thereof
04/02/2014CN103695782A Steel with tensile strength of 630Mpa for mobile-type pressure vessel and production method thereof
04/02/2014CN103695781A Easily-cut copper-niobium composite steel and production method thereof
04/02/2014CN103695780A 120 mm Q460 structural steel plate and production method thereof
04/02/2014CN103695779A Steel plate made of high-rise building steel Q345EZ25 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
04/02/2014CN103695775A 345MPa-level steel plate for high-rise building structure and production method thereof
04/02/2014CN103695774A Hot-rolled low-hardness steel containing titanium and boron for high-strength fastener and production method thereof
04/02/2014CN103695771A 610MPa-tensile-strength hot-rolled high-strength steel sheet and production method thereof
04/02/2014CN103695769A High-strength steel plate made of oceaneering steel FH40 and production method of high-strength steel plate
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
04/02/2014CN103695764A Cold-rolling hot-dipping steel plate used for liquid-crystal module backboard and production method of the steel plate
04/02/2014CN103695763A Method for improving steel plate surface quality by adopting low-temperature rolling
04/02/2014CN103695762A Hot rolled steel for rims, with tensile strength of 560-590MPa and preparation method thereof
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
04/02/2014CN103695736A Aluminum alloy conductor for cables and preparation method thereof
04/02/2014CN103695620A Method for producing oriented silicon steel with excellent underlying quality
04/02/2014CN103695619A Manufacturing method of high-magnetic-induction common-oriented silicon steel
04/02/2014CN103695618A Thermomechanical treatment method for preparing submicron complex phase steel
04/02/2014CN103160667B High-strength intermediate-carbon ultrafine bainitic steel and preparation method thereof
04/02/2014CN102851476B Construction-use HPB300 hot-rolled straight steel bar and preparation method thereof
04/02/2014CN102803521B Method for producing directional electromagnetic steel sheet
04/02/2014CN102766826B Production method of vanadium nitrogen micro-alloying high-strength weathering resistant steel
04/02/2014CN102762756B Steel plate exhibiting little welding deformation and excellent corrosion resistance
04/02/2014CN102758138B Method for producing hydropower steel with thin specification and low sensitivity to weld cracks
04/02/2014CN102732778B 340MPa-grade high-strength cold-rolled steel plate used for deep-drawing, and production method thereof
04/02/2014CN102719729B Automotive low-carbon aluminum-killed steel sheet and production method thereof
04/02/2014CN102690938B Pilot scale production method of low-carbon Fe-Mn-Al-Si series TWIP (Twining Induced Plasticity) steel
04/02/2014CN102644020B Cooling after rolling method for low-alloy hot-rolled H-steel with yield strength up to 500MPa
04/02/2014CN102634646B Special temperature-control cooling thermal treatment technology
04/02/2014CN102605235B High-collapse resistance hot stretch-reducing electric welding (SEW) petroleum casing pipe and manufacturing method thereof
04/02/2014CN102581555B P91 seamless steel pipe and method for manufacturing same
04/02/2014CN102534365B Aluminum killed steel hot dip galvanized sheet and production method thereof
04/02/2014CN102216482B High-carbon steel wire material with excellent processability
04/02/2014CN101906585B High-performance building structure refractory steel plates and manufacturing method thereof
04/01/2014US8685182 High-strength steel pipe and producing method thereof
04/01/2014US8685181 Manufacturing method of carbon steel sheet superior in formability
04/01/2014US8685177 Manufacturing method for a crankshaft member
03/2014
03/27/2014WO2014045829A1 Thick steel sheet having excellent welding heat-affected part toughness
03/27/2014WO2014045553A1 Wear-resistant steel plate having excellent low-temperature toughness and corrosion wear resistance
03/27/2014WO2014045552A1 Wear-resistant steel plate having excellent low-temperature toughness and corrosion wear resistance
03/27/2014US20140087208 Cold-rolled steel sheet and method for producing same
03/27/2014US20140083576 Austenitic alloy pipe and method for producing the same
03/27/2014US20140083574 Heat-hardened steel with excellent crashworthiness and method for manufacturing heat-hardenable parts using same
03/27/2014US20140083573 Non-Grain-Oriented Electrical Steel Strip or Sheet, Component Manufactured from it and Method for Producing a Non-Grain-Oriented Electrical Steel Strip or Sheet
03/26/2014EP2710159A1 Process and apparatus for preparing steel stock before hot rolling
03/26/2014EP2710158A1 High-strength flat steel product and method for producing same
03/26/2014CN103687975A Low-yield-ratio high-strength hot-rolled steel plate with excellent low-temperature toughness and process for producing same
03/26/2014CN103687974A Non-grain-oriented electrical steel strip or sheet, component produced therefrom, and method for producing a non-grain-oriented electrical steel strip or sheet
03/26/2014CN103687973A Hot press forming steel plate, formed member using same, and method for manufacturing the plate and member
03/26/2014CN103687967A Method for producing oriented electromagnetic steel sheet
03/26/2014CN103687966A Process for producing grain-oriented electrical steel sheet
03/26/2014CN103668005A HiB steel produced at moderate slab heating temperature and production method thereof
03/26/2014CN103668004A Preparation method of hot rolled steel for automobile transmission shaft tube
03/26/2014CN103668003A Preparation method of hot rolled steel for automobile beam
03/26/2014CN103667992A Steel plate with high hardness and abrasion resistance
03/26/2014CN103667978A Preparation method of antibacterial austenitic stainless steel band
03/26/2014CN103667969A Method for producing steel strip through low-temperature online static recrystallization
03/26/2014CN103667968A Method for producing steel strip through low-temperature online static recrystallization
03/26/2014CN103667966A Preparation method of high-hardness and low-loss electrical steel
03/26/2014CN103667963A Low-carbon bainite construction steel with yield ratio of less than 0.8 and production method thereof
03/26/2014CN103667956A Heat treatment method of steel for forging engine balance shaft
03/26/2014CN103667953A Oceanic mooring chain steel with low environmental crack sensitivity and ultrahigh obdurability and preparation method thereof
03/26/2014CN103667952A Production process of weather-resistant steel
03/26/2014CN103667950A 430 stainless steel for cold stamping processing, and manufacturing method thereof
03/26/2014CN103667936A Nut preparation method
03/26/2014CN103667930A Moisture-proof H2S-corrosion-resistant L555QS pipeline tube containing rare earth and production method of pipeline tube
03/26/2014CN103667929A Low-cost and H2S-corrosion-resistant L390NS pipeline tube containing rare earth and production method of pipeline tube
03/26/2014CN103667928A Cold shortness resistant N80 petroleum pipe steel and manufacturing method thereof
03/26/2014CN103667924A 40Cr hot-rolled wire rod production method
03/26/2014CN103667922A Method of producing high-strength HRB400 hot-rolled ribbed bars
03/26/2014CN103667921A Thick steel plate with high strength and toughness as well as uniform performance in thickness direction and production method of thick steel plate
03/26/2014CN103667915A Thermal mechanical control steel plate having favorable low-temperature flexibility and manufacturing method thereof
03/26/2014CN103667913A Production method for high-yield-strength and high-plasticity TWIP (Twinning Induced Plasticity) steel
03/26/2014CN103667911A Low yield ratio X100 high-grade steel pipeline steel hot-rolled steel plate and manufacturing method thereof
03/26/2014CN103667909A Mobile ocean platform steel with yield ratio not greater than 0.65 and production method thereof
03/26/2014CN103667908A Hot-rolled high-strength sheet steel having tensile strength of 540MPa, and production method thereof
03/26/2014CN103667907A Hot-rolled high-strength sheet steel having tensile strength of 510MPa, and production method thereof
03/26/2014CN103667906A Hot-rolling high-strength steel sheet having tensile strength of 590 MPa grade and production method thereof
03/26/2014CN103667905A Ultra-fine grain structural steel with excellent plasticity and toughness and production method thereof
03/26/2014CN103667903A Preparation method of low-carbon low-silicon electrical steel for motor
03/26/2014CN103667902A Preparation method of electrical steel for high-function automobile electrical part
03/26/2014CN103667901A Preparation method of hot rolled steel for automobile axle housing
03/26/2014CN103667900A Preparation method of high-magnetic-strength electrical steel for automobile motor
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