Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654)
11/2011
11/23/2011CN102251194A Two-phase stainless steel cold-rolled sheet with good surface corrosion resistance, and preparation method thereof
11/23/2011CN102251191A Martensite stainless steel and preparation method for flat strip of martensite stainless steel
11/23/2011CN102251180A Rare-earth-containing ultrahigh strength collapse-resistant petroleum casing and production method thereof
11/23/2011CN102251174A Enamel steel and preparation method of cold rolled sheet thereof
11/23/2011CN102251170A Ultrahigh-strength bainitic steel and manufacture method thereof
11/23/2011CN102251087A Hot-rolled steel sheet and cold-rolled steel sheet and manufacturing method thereof
11/23/2011CN102251086A Molybdenum-based ferrite stainless steel and preparation method thereof
11/23/2011CN101871076B Manufacturing method of 500Mpa-grade cold-rolled magnetic steel
11/23/2011CN101845601B Ultrahigh strength cold rolled steel strip for automobile seat
11/23/2011CN101812640B In-situ composite high-strength thick steel plate and manufacturing method thereof
11/23/2011CN101787420B Large-size mandril structure property control method
11/23/2011CN101748342B High-strength 18Cr-8Ni stainless steel hot rolled plate and manufacturing method thereof
11/23/2011CN101573458B Method for manufacturing grain-oriented electrical steel sheets with excellent magnetic property and high productivity
11/22/2011US8062438 Hot-rolled thin steel sheet with excellent formability and excellent strength and toughness after heat treatment, and method for manufacturing the same
11/22/2011CA2638681C Oil country tubular good for expansion in well and manufacturing method thereof
11/17/2011WO2011142285A1 High-strength steel plate and method for producing same
11/17/2011WO2011142172A1 High-strength thick steel plate with excellent drop weight characteristics
11/17/2011WO2011081350A3 High strength steel sheet having excellent resistance to post weld heat treatment and method for manufacturing same
11/16/2011EP2111309B1 Method and apparatus for thermo-mechanical controlled rolling of metal plates and strips
11/16/2011CN102245319A Method for producing strips of metal, and production line for performing the method
11/16/2011CN102242322A Improved 40CrNiMo steel and preparation method thereof
11/16/2011CN102242321A Sulfide stress cracking (SSC) corrosion-resistant C110 steel grade petroleum special pipe steel and preparation method thereof
11/16/2011CN102242320A Super-hard copper-containing martensite antibiotic stainless steel
11/16/2011CN102242315A Oxide metallurgy method for refining structure of wheel steel
11/16/2011CN102242313A High-hardness silver-bearing martensite antibacterial stainless steel
11/16/2011CN102242309A Production method of boron-containing petroleum storage tank steel plate for ultra-high heat input welding
11/16/2011CN102242307A Hot-rolled steel sheet and cold-rolled steel sheet and manufacturing method thereof
11/16/2011CN101923941B Low-noise transformer core for inverter power supply
11/16/2011CN101768695B Preparation method of Ti microalloyed ultra-fine grained cold rolling dual-phase steel of 1,000MPa level
11/16/2011CN101713054B Large thickness steel plate for hydrogenation reaction chamber reeling equipment and production method thereof
11/16/2011CN101701316B Automobile beam steel with tensile strength of 590MPa and manufacturing method thereof
11/16/2011CN101657557B Hot-dip metal coated high-strength steel sheet for press working excellent in low-temperature toughness and process for production thereof
11/16/2011CN101624684B Carburizing bainite steel and manufacturing method thereof
11/16/2011CN101497965B Steel for cutting edge of shovel of loader and digger and production method thereof
11/16/2011CN101410541B Steel for machine structure excelling in machinability and strength property
11/16/2011CN101238227B Method for producing a grain-oriented electrical steel strip
11/10/2011WO2011139117A2 High-strength and high-toughness ultrafine wire rod and method for producing same
11/10/2011WO2011138159A1 Process for hot rolling steel strips and hot rolling train
11/10/2011WO2011081349A3 High strength steel sheet having excellent brittle crack resistance and method for manufacturing same
11/10/2011US20110272068 Method for press-molding embossed steel plate
11/10/2011US20110272066 Manufacturing method of steel sheet for cans
11/09/2011EP2385149A1 Steel material for welding and method for producing same
11/09/2011EP2385147A2 An electrical steel, a motor, and a method for manufacture of electrical steel with high strenght and low electrical losses
11/09/2011EP1413634B1 Method of producing high cr-based seamless steel tube
11/09/2011CN102234740A Ferrite stainless steel and manufacturing method of ferrite stainless steel cold-rolled sheet made therefrom
11/09/2011CN102234716A Method for predicting dynamic recrystallization microstructure evolution in thermal deformation process of pure copper
11/09/2011CN102234706A Method for refining grains of heavy forging steel of nuclear reactor evaporator
11/09/2011CN101755058B Process for hot rolling and for heat treatment of a steel strip
11/09/2011CN101426943B Plated steel wire for PWS excelling in torsion property and process for producing the same
11/08/2011US8052812 Method of manufacturing high carbon cold-rolled steel sheet
11/08/2011US8052811 Method of producing non-oriented electrical steel sheet excellent in magnetic properties
11/08/2011US8052808 High strength hot rolled steel sheet with excellent press workability and method of manufacturing the same
11/08/2011US8052807 Steel sheet excellent in workability
11/08/2011CA2390808C High tensile strength hot-dipped steel sheet and method or producing the same
11/04/2011CA2735743A1 An electrical steel, a motor, and a method for manufacture of electrical steel with high strength and low electrical losses
11/03/2011WO2011136175A1 High-strength stainless steel for oil well and high-strength stainless steel pipe for oil well
11/03/2011WO2011135997A1 Hot rolled dual phase steel sheet having excellent dynamic strength, and method for producing same
11/03/2011WO2011135700A1 Hot rolled dual phase steel sheet having excellent dynamic strength, and method for producing same
11/03/2011WO2011068328A3 Cold rolled steel sheet for processing with excellent heat resistance, and preparation method thereof
11/03/2011CA2795326A1 High-strength stainless steel for oil well and high-strength stainless steel pipe for oil well
11/02/2011EP2383360A1 Steel with excellent anti-ductile crack generation characteristics in weld heat-affected zone and base material and manufacturing method therefor
11/02/2011EP2383353A2 High tensile steel containing Mn, steel surface product made from such steel and method for producing same
11/02/2011CN102230137A Austenitic heat-resistant stainless steel and processing method thereof
11/02/2011CN102230136A Austenitic stainless steel and manufacturing method thereof
11/02/2011CN102230134A Quaternary marine mooring chain steel with large specification and high performance and machining process thereof
11/02/2011CN102230131A 38CrMoAl steel and preparation method thereof
11/02/2011CN102230128A Low-cost X70 pipeline steel plate and preparation method thereof
11/02/2011CN102230127A Production method of hot-rolled steel plate made of niobium (Nb)-containing steel
11/02/2011CN102230120A High-performance elastic alloy material for aerial hyperbaric cabin and production method thereof
11/02/2011CN102230057A Method for producing steel plate of petroleum storage tank by using direct quenching process
11/02/2011CN101876000B Method for producing high-toughness ultra-thick plate by using continuous casting blank
11/02/2011CN101608283B Thick steel plate with excellent brittlement crevasse crack propagation halt characteristic and manufacturing method thereof
11/01/2011US8049131 Ultrahigh strength welded joint and ultrahigh strength welded steel pipe excellent in cold cracking resistance of weld metal, and methods for producing the same
11/01/2011US8048367 High strength thick-gauge steel plate superior in weldability and having tensile strength of 780 MPA or more and method of production of same
11/01/2011US8048239 Ferritic stainless steel sheet superior in shapeability and method of production of the same
11/01/2011US8048237 Ultra soft high carbon hot rolled steel sheet and method for manufacturing same
11/01/2011CA2530834C High-strength steel sheet having excellent deep drawability and process for producing the same
10/2011
10/27/2011WO2011132763A1 High strength hot-dip galvanized steel sheet with superior workability and production method therefor
10/27/2011WO2011131809A1 Structural component of a vehicle and manufacturing method
10/27/2011WO2011074787A3 Steel plate for surface defect-free enameling, and manufacturing method thereof
10/27/2011US20110262298 Steel for welded structures excellent in high temperature strength and low temperature toughness and method of production of same
10/27/2011US20110259483 Fine Spheroidized Steel Sheet with Excellent Heat Treatment Characteristic and Method for Manufacturing the Same
10/26/2011EP2380999A1 Method for manufacturing steel plate for can-making
10/26/2011EP2380998A1 Method for producing high alloy steel pipe
10/26/2011EP2380997A1 Steel for weld construction having excellent high-temperature strength and low-temperature toughness and process for producing the steel
10/26/2011EP2379756A1 Method for manufacturing a coated part using hot forming techniques
10/26/2011CN102227512A Steel wire for low-temperature annealing and method for producing same
10/26/2011CN102226252A High-toughness carburized bearing steel with ultra-long contact fatigue life and preparation method thereof
10/26/2011CN102226251A Highly strong, non-oriented electrical steel sheet and method for manufacture thereof
10/26/2011CN102226250A Hot rolled steel plate with yield strength being 700MPa and preparation method thereof
10/26/2011CN102226230A Production method of carbon extra-deep drawing steel belt
10/26/2011CN101765673B Hot-rolled shape steel for crude oil tanks and process for manufacturing the same
10/26/2011CN101755059B Process for production of duplex stainless steel tubes
10/26/2011CN101709432B Steel for large-thickness hardening and tampering ocean platform and production method thereof
10/26/2011CN101702311B Steel wire and manufacturing method therefor
10/25/2011US8043447 Method of manufacturing high tensile strength thick steel plate
10/25/2011US8043446 High strength and corrosion resistant alloys comprising carbon, silicon, chromium, nickel, nitrogen, molybdenum, tungsten and iron, formed by heating and cooling
10/25/2011US8043444 Steel wire for cold-formed spring excellent in corrosion resistance and method for producing the same
10/25/2011CA2602728C High-strength steel plate, method of producing the same, and high-strength steel pipe
10/25/2011CA2587858C Method of producing austentic iron/carbon/manganese steel sheets having very high strength and elongation characteristics and excellent homogeneity
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