| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 07/04/2012 | CN101974671B Method for manufacturing high-strength superfine crystalline spring steel |
| 07/04/2012 | CN101967604B Boron-nitrogen composite microalloyecd steel allowing for high heat input welding and manufacturing method |
| 07/04/2012 | CN101935802B Method for producing 490MPa level acid-washing-free hot rolled steel plate |
| 07/04/2012 | CN101899618B X46 pipeline steel and preparation method thereof |
| 07/04/2012 | CN101899617B X56 pipeline steel and production method thereof |
| 07/04/2012 | CN101899614B Composite micro-alloying hot rolled steel plate containing V and Nb and preparation method thereof |
| 07/04/2012 | CN101899556B Heat treatment method for thinning coarse grains of ferrite refractory steel for bearing pressure at high temperature |
| 07/04/2012 | CN101892370B Fe-Cr-Mn-N austenitic stainless steel with good hot workability and manufacturing method thereof |
| 07/04/2012 | CN101849026B Steel for weld construction having excellent high-temperature strength and low-temperature toughness and process for producing the steel |
| 07/04/2012 | CN101831592B Shockproof strip material of nuclear power station steam generator, and preparation method thereof |
| 07/04/2012 | CN101802232B Method for producing a surface-decarbonized hot-rolled strip |
| 07/04/2012 | CN101772583B Hot-rolled shape steel for ships and process for manufacturing the same |
| 07/04/2012 | CN101755068B Steel pipes excellent in deformation characteristics and process for manufacturing the same |
| 07/04/2012 | CN101688272B Steel plate exhibiting excellent bendability by line heating and process for production of the plate |
| 07/04/2012 | CN101649420B Ultra-strength, high toughness and low yield ratio steel and steel plate and manufacturing method thereof |
| 07/04/2012 | CN101631880B Steel for tool-less hot forming or quenching with improved ductility |
| 07/04/2012 | CN101230413B Heat processing technique for austenitic stainless steel hot-rolling coil with high carbon content |
| 07/04/2012 | CN101208446B High-strength wire rod having superior rod drawability, and manufacturing method therefor |
| 06/28/2012 | WO2012087045A2 Low iron loss high strength non-oriented electromagnetic steel sheet and method for manufacturing same |
| 06/28/2012 | WO2012087028A2 Steel sheet for an oil sand slurry pipe having excellent abrasion resistance, corrosion resistance and low-temperature toughness and method for manufacturing same |
| 06/28/2012 | WO2012087016A2 Grain-oriented electric steel sheet having superior magnetic property and method for manufacturing same |
| 06/28/2012 | WO2012086534A1 Process for production of non-oriented electromagnetic steel sheet |
| 06/28/2012 | WO2012083838A1 Bulk nano-structured low carbon steel and method of manufacturing the same |
| 06/28/2012 | US20120164472 Method of Producing a Steel Component Provided with a Metallic Coating Giving Protection Against Corrosion, and a Steel Component |
| 06/28/2012 | US20120160376 Heat resistant cast steel, manufacturing method thereof, cast parts of steam turbine, and manufacturing method of cast parts of steam turbine |
| 06/28/2012 | US20120160373 Forging heat resistant steel, manufacturing method thereof, forged parts and manufacturing method thereof |
| 06/28/2012 | DE102010056264A1 Producing steel element comprising zinc alloy coating, comprises stamping out blank from sheet metal coated with zinc alloy, heating stamped-out blank to temperature, and holding blank at this temperature for predetermined time |
| 06/28/2012 | CA2822863A1 Steel sheet for an oil sand slurry pipe having excellent abrasion resistance, corrosion resistance, and low-temperature toughness and method for manufacturing same |
| 06/28/2012 | CA2821087A1 Method of producing non-oriented electrical steel sheet |
| 06/27/2012 | EP2290116B1 Thick steel sheet having high strength and method for producing same |
| 06/27/2012 | CN102517941A Production process of contact net anchorage steel wire rope |
| 06/27/2012 | CN102517592A High magnetic induction grain-oriented silicon steel stripe nitriding treatment method |
| 06/27/2012 | CN102517522A Steel for hydraulic piece and manufacturing method for steel |
| 06/27/2012 | CN102517521A MnCr carburized gear steel and its production method |
| 06/27/2012 | CN102517518A Low-cost and high-performance X80 pipeline steel and production method thereof |
| 06/27/2012 | CN102517515A Phi 177.8*9.19 seamless steel pipe with high steel grade for petroleum and manufacturing method |
| 06/27/2012 | CN102517509A HB500 (Brinell Hardness 500) wear-resistant steel plate and preparation method thereof |
| 06/27/2012 | CN102517502A Disk-shaped roller cutter ring and manufacture method thereof |
| 06/27/2012 | CN102517497A Alloy target material in vertical magnetic recording medium and preparation method for alloy target material |
| 06/27/2012 | CN102517496A Hot rolled ferrite/martensite double phase steel and production method thereof |
| 06/27/2012 | CN102517493A High strength steel sheet excellent in deep drawing characteristics and method for production thereof |
| 06/27/2012 | CN102517492A Preparation method of intercritical annealing treated vanadium-containing extra-deep drawing dual phase steel |
| 06/27/2012 | CN102517429A Method for producing high-magnetic-induction oriented silicon steel by continuous casting and rolling of thin slab |
| 06/27/2012 | CN102517428A Method for producing low compression ratio crack detection thick plate |
| 06/27/2012 | CN101956136B Martensite-granular bainite plastic die steel and manufacturing method thereof |
| 06/27/2012 | CN101906580B Non-oriented electrical steel containing vanadium and titanium and preparation method thereof |
| 06/27/2012 | CN101903554B Ferrite-austenite stainless steel sheet excellent in ridging resistance and workability and process for manufacturing the same |
| 06/27/2012 | CN101876028B Non-oriented electrical steel for variable frequency motor and production method thereof |
| 06/27/2012 | CN101405419B High-strength pearlite rail with excellent delayed-fracture resistance |
| 06/26/2012 | CA2687327C Low density steel with good stamping capability |
| 06/26/2012 | CA2548560C Steel for structural part of automobile and method for producing the same |
| 06/21/2012 | WO2012081871A2 Austenitic, lightweight, high-strength steel sheet of which the yield ratio and flexibility are outstanding and a production method therefor |
| 06/21/2012 | WO2012081666A1 Hot-dip zinc-plated steel sheet and process for production thereof |
| 06/21/2012 | WO2012079790A1 Method for producing a grain-oriented electric strip |
| 06/21/2012 | US20120156085 Blast Resistant, Non-Magnetic, Stainless Steel Armor |
| 06/21/2012 | US20120152410 Method And Device for Energy-Efficient Hot Forming |
| 06/21/2012 | DE102010063677A1 Verfahren zur Herstellung eines Schraubankers und Schraubanker Process for the preparation of a screw and screw anchor |
| 06/21/2012 | DE102010055148A1 Manufacturing form-hardened component, preferably vehicle body component, comprises heating a board of steel in a heating plant to a temperature above the austenitizing temperature of steel, and form curing in a tool |
| 06/21/2012 | CA2821703A1 Hot-dip galvanized steel sheet and manufacturing method thereof |
| 06/20/2012 | EP2465963A1 High strength spring steel and steel wire |
| 06/20/2012 | EP2465954A1 Blast resistant, non-magnetic stainless steel armor |
| 06/20/2012 | EP1309734B2 Highly stable, steel and steel strips or steel sheets cold-formed, method for the production of steel strips and uses of said steel |
| 06/20/2012 | CN102505098A Low-alloy heat-resistant high-strength steel and member thereof |
| 06/20/2012 | CN102505096A Steel with good property and ultra-high strength for engineering machinery and manufacturing method thereof |
| 06/20/2012 | CN102505094A Production method of large-scale 82B high-carbon hard wire rod |
| 06/20/2012 | CN102505093A Solid expansion tube steel for open hole completion of oil and gas well and manufacturing method thereof |
| 06/20/2012 | CN102505081A Manufacturing method for high magnesium aluminum alloy sheets |
| 06/20/2012 | CN101835917B Thick steel sheet having high strength and method for producing same |
| 06/20/2012 | CN101492765B Apparatus and method for refining magnetic domain of electrical steel sheet |
| 06/19/2012 | US8202376 High-strength motor-vehicle frame part with targeted crash |
| 06/19/2012 | CA2718098C Hot-rolled steel sheet excellent in fatigue properties and stretch-flange formability and method for manufacturing the same |
| 06/14/2012 | WO2012077628A1 Steel sheet for bottom covers of aerosol cans and method for producing same |
| 06/14/2012 | WO2012077150A2 Process for manufacturing high manganese content steel with high mechanical resistance and formability, and steel so obtainable |
| 06/14/2012 | US20120145285 Method for producing an iron-chromium alloy |
| 06/14/2012 | US20120144990 Armour |
| 06/14/2012 | US20120144989 High ballistic strength martensitic armour steel alloy |
| 06/14/2012 | DE102010062711A1 Method for manufacturing piston for internal combustion engine, involves partially performing ultrasonic impact treatment on surface of piston |
| 06/14/2012 | CA2818911A1 Steel sheet for bottom covers of aerosol cans and method for producing same |
| 06/13/2012 | EP2463868A1 Soft magnetic amorphous alloy ribbon, method for producing same, and magnetic core using same |
| 06/13/2012 | EP2463394A1 Nonmagnetic stainless steel, member for radio-controlled timepiece, production process of nonmagnetic stainless steel, and radio wave receiver |
| 06/13/2012 | EP2462252A2 Non-heat treated rolled steel and drawn wire rod with excellent toughness, and method for manufacturing the same |
| 06/13/2012 | EP2462248A1 Method and device for producing a microalloyed steel, in particular a pipe steel |
| 06/13/2012 | CN102492901A Production method of aluminum alloy plates for high-pressure containers |
| 06/13/2012 | CN102492899A Production method of sheet material |
| 06/13/2012 | CN102492894A High-dimension stable corrosion-resistant martensite steel and preparation method of steel structural material |
| 06/13/2012 | CN102492893A General oriented silicon steel produced by continuous casting and rolling of sheet billet and its manufacture method |
| 06/13/2012 | CN102492879A Aluminum alloy thin-wall tube and preparation method |
| 06/13/2012 | CN102492878A Production method for aluminum alloy bicycle frame pipe for electric bicycle |
| 06/13/2012 | CN102492818A Thermal treatment process for inlaid steel guide rail |
| 06/13/2012 | CN102492816A Method for producing high magnetic induction oriented silicon steel strip through batch nitriding |
| 06/13/2012 | CN102492815A Heat treatment technology after austenite shot-blast steel pipe cold deformation |
| 06/13/2012 | CN102492814A Straight pull wire for high-carbon steel fine wires and manufacturing method for straight pull wire |
| 06/13/2012 | CN102492813A Production technology of stainless steel band for weaving reed |
| 06/13/2012 | CN102134633B Precise heat treatment method of high-precision elastic element |
| 06/13/2012 | CN101622368B Electric resistance welded steel pipe prior to heat treatment and process for manufacturing the same |
| 06/13/2012 | CN101591725B Production technology for strip steel |
| 06/13/2012 | CN101153370B Low alloy high-strength steel plate capable of being welded in large energy input and method of producing the same |
| 06/12/2012 | US8197616 Manufacturing method of carbon steel sheet superior in formability |
| 06/12/2012 | CA2668069C Steel plate for linepipe having ultra-high strength and excellent low temperature toughness and manufacturing method of the same |
| 06/12/2012 | CA2473765C High strength steel product with improved formability and steel manufacturing process |