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