| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 12/18/2013 | CN102758129B Method for manufacturing non-spangle galvanized sheet DX54D+Z from aluminum killed steel |
| 12/18/2013 | CN102492818B Thermal treatment process for inlaid steel guide rail |
| 12/18/2013 | CN102357778B Manufacturing method of pulling straightening roller |
| 12/18/2013 | CN102296235B Hot rolled steel plate, production device of hot rolled steel plate, and production method for hot rolled steel plate |
| 12/17/2013 | US8608875 Sponge-iron alloying |
| 12/17/2013 | US8608871 High-strength steel tube having excellent chemical conversion treatability and excellent formability and method for manufacturing the same |
| 12/17/2013 | CA2553586C Oil well seamless steel pipe excellent in resistance to sulfide stress cracking and method for production thereof |
| 12/12/2013 | WO2013183648A1 Steel wire rod or bar steel |
| 12/12/2013 | WO2013182622A1 Steel, sheet steel product and process for producing a sheet steel product |
| 12/12/2013 | WO2013182621A1 Steel, sheet steel product and process for producing a sheet steel product |
| 12/12/2013 | US20130327453 Method for hot stamping metal |
| 12/12/2013 | US20130327447 High-Strength Corrosion-Resistant Tubing for Oil and Gas Completion and Drilling Applications, and Process for Manufacturing Thereof |
| 12/11/2013 | EP2671964A1 High-strength cold-rolled steel sheet having excellent processability and high yield ratio, and method for producing same |
| 12/11/2013 | EP2671962A1 Steel sheet for aerosol can bottom having high pressure resistance and excellent workability and method for producing same |
| 12/11/2013 | EP2671961A1 High strength cold-rolled steel sheet and automobile components of steel having excellent properties in coating film adhesion, workability, and hydrogen embrittlement resistivity |
| 12/11/2013 | EP2671960A1 High strength cold-rolled steel sheet and automobile components of steel having excellent properties in coating film adhesion, workability, and hydrogen embrittlement resistivity |
| 12/11/2013 | EP2670870A1 Process for producing high strength steel, and to a steel produced thereby |
| 12/11/2013 | CN103443320A Bainite-containing high-trength hot-rolled steel plate with excellent isotropic workability and process for producing same |
| 12/11/2013 | CN103443318A Austenite system alloy pipe and manufacturing method thereof |
| 12/11/2013 | CN103443316A Case hardening steel, method for producing same, and mechanical structural part using case hardening steel |
| 12/11/2013 | CN103443301A Method of manufacturing a magnetic substrate for an encoder |
| 12/11/2013 | CN103436829A Preparation method for beraloy pipe |
| 12/11/2013 | CN103436821A Preparation method for cold forging steel material used for grade-12.9 fastener |
| 12/11/2013 | CN103436816A Manufacturing method of 1Cr18Ni9Ti stainless steel shaft forging |
| 12/11/2013 | CN103436814A Ultra-low-temperate ribbed steel bar for liquefied natural gas tank, and preparation method thereof |
| 12/11/2013 | CN103436813A Manufacturing process of alloy steel for rail frogs |
| 12/11/2013 | CN103436811A High-property super-thick steel plate for 500 MPa-level engineering structure and manufacturing method thereof |
| 12/11/2013 | CN103436809A Preparation method for cold heading steel material used for bolt |
| 12/11/2013 | CN103436806A Production method of forged flange capable of meeting A694F70 high yield value core sampling requirements |
| 12/11/2013 | CN103436805A Preparation method for alloy-steel roller |
| 12/11/2013 | CN103436803A Processing method for pump head body of five-cylinder plunger pump |
| 12/11/2013 | CN103436799A Preparation method for high strength annealing-free cold-forging steel with atmosphere corrosion resistance |
| 12/11/2013 | CN103436790A Wear-resistant steel for ore slurry delivering welded pipe line and manufacturing method thereof |
| 12/11/2013 | CN103436787A Low-cost rare earth-containing anti-H2S corrosion petroleum casing pipe material and production method thereof |
| 12/11/2013 | CN103436785A Manufacturing method for heat treatment-free cold forging steel used for riveted joint |
| 12/11/2013 | CN103436784A Steel plate for offshore platform and preparation method thereof |
| 12/11/2013 | CN103436783A Manufacture method of quenching high-strength steel plate for heavy truck body structure |
| 12/11/2013 | CN103436781A Square pipe for driving axle housing of heavy truck and production method of square pipe |
| 12/11/2013 | CN103436780A Production method of steel for LED bracket |
| 12/11/2013 | CN103436778A Cold-strip steel with low-temperature toughness for flux-cored wires and production method of cold-strip steel |
| 12/11/2013 | CN103436735A Preparation method of beta titanium alloy tube |
| 12/11/2013 | CN103436680A Method for producing steel for binding straps with tensile strength of more than or equal to 990 MPa |
| 12/11/2013 | CN103436672A Thermal treatment method for 14Cr17Ni2 stainless steel |
| 12/11/2013 | CN103433319A Manufacture method of stainless steel external wall panel for rail vehicle |
| 12/11/2013 | CN103433279A Roll forming method for Martensite stainless steel large-sized thin-wall ring part |
| 12/11/2013 | CN102851671B Carborized quenched gear ring self-rounding heat treatment method |
| 12/11/2013 | CN102605246B Steel for low-strain-ageing sensitive welding structure and production method of steel |
| 12/11/2013 | CN102102142B Production method of energy saving type GO oriented silicon steel |
| 12/11/2013 | CN102102141B Hot rolling process for improving structural homogeneity of oriented silicon steel plate |
| 12/11/2013 | CN101921897B Method for reducing carbon segregation in high-carbon steel |
| 12/05/2013 | WO2013180037A1 High strength cold-rolled steel plate exhibiting little variation in strength and ductility, and manufacturing method for same |
| 12/05/2013 | WO2013179667A1 High-strength stainless steel seamless pipe for use as oil well piping, and manufacturing method therefor |
| 12/05/2013 | WO2013179115A1 Low-density hot- or cold-rolled steel, method for implementing same and use thereof |
| 12/05/2013 | WO2013178470A1 Continuous curing or drying installation for sheet metal strip |
| 12/05/2013 | US20130319583 High-purity ferritic stainless steel sheet with excellent oxidation resistance and high-temperature strength, and process for producing the same |
| 12/05/2013 | US20130319582 Bainite-containing-type high-strength hot-rolled steel sheet having excellent isotropic workability and manufacturing method thereof |
| 12/04/2013 | EP2669397A1 Alloying element-saving hot rolled duplex stainless steel material, clad steel sheet having duplex stainless steel as mating material therefor, and production method for same |
| 12/04/2013 | EP2668302A1 High strength multi-phase steel having excellent forming properties |
| 12/04/2013 | CN103429779A Hot-rolled steel sheet and process for producing same |
| 12/04/2013 | CN103429775A Method for manufacturing grain-oriented electrical steel sheet having excellent magnetic properties |
| 12/04/2013 | CN103429767A Method for producing a grain-oriented flat steel product |
| 12/04/2013 | CN103429766A Bainitic steel of high strength and high elongation and method to manufacture said bainitic steel |
| 12/04/2013 | CN103422027A Economical low yield point steel and production method thereof |
| 12/04/2013 | CN103422025A Steel for low-yield-ratio structure with yield strength larger than or equal to 690MPa and production method of steel |
| 12/04/2013 | CN103422023A Chromium-molybdenum alloy heat-resisting steel plate and manufacturing method thereof |
| 12/04/2013 | CN103422022A Large-thickness steel plate for low-temperature structure and production method thereof |
| 12/04/2013 | CN103422021A Low-yield-ratio structural steel with yield ratio equal to or larger than 550MPa and manufacturing method thereof |
| 12/04/2013 | CN103422020A Steel plate for punching-welding axle housing and manufacturing method thereof |
| 12/04/2013 | CN103422019A Method for manufacturing ultra-fine steel wire |
| 12/04/2013 | CN103422017A Seamless steel tube used in environment with delivery temperature below -130 DEG C and manufacturing method thereof |
| 12/04/2013 | CN103421941A Thermal treatment method for improving corrosion resistance of steel plate for marine-atmospheric-corrosion-resistant structure |
| 12/04/2013 | CN103421940A Technological method for AISI4140 and AISI 4340 constructional steel forged piece quenching and tempering through one-time thermal cycling |
| 12/04/2013 | CN103421939A Rolling method of 430-type ferrite stainless steel for deep drawing |
| 12/04/2013 | CN103418615A Rolled copper foil |
| 12/04/2013 | CN102925649B Manufacture method of austenitic stainless steel with good polishing performance |
| 12/04/2013 | CN102691004B Production method for treating weathering steel for containers without sand blasting or shot blasting |
| 12/03/2013 | US8597441 Method for producing partially hardened steel components |
| 12/03/2013 | US8597439 High-strength cold rolled steel sheet having excellent formability, and plated steel sheet |
| 11/28/2013 | WO2013176617A1 Ultra sagging and melting resistant fin material with very high strength |
| 11/28/2013 | WO2013175821A1 Hollow stabilizer, and steel pipe for hollow stabilizers and method for production thereof |
| 11/28/2013 | WO2013175745A1 High-strength thick steel plate for structural use which has excellent brittle crack arrestability, and method for producing same |
| 11/28/2013 | WO2013174655A1 Method for producing a component composite |
| 11/28/2013 | DE102005046459B4 Verfahren zur Herstellung von kaltgefertigten Präzisionsstahlrohren Process for the preparation of cold formed precision steel tubes |
| 11/27/2013 | CN103415641A Steel sheet hot-dip-coated with Zn-Al-Mg-based system, and process of manufacturing same |
| 11/27/2013 | CN103415640A Steel sheet for aerosol can bottom having high pressure resistance and excellent workability and method for producing same |
| 11/27/2013 | CN103415638A Non-oriented electromagnetic steel sheet, method for producing same, laminate for motor iron core, and method for producing said laminate |
| 11/27/2013 | CN103409702A Seamless steel pipe for L830Q pipeline containing rare earth and production method of seamless steel pipe |
| 11/27/2013 | CN103409699A Steel forging with ultra-high strength and ultra-high low-temperature impact on box body of fracturing pump valve and manufacturing method of steel forging |
| 11/27/2013 | CN103409698A Alloy steel and method of manufacturing torsion shaft by virtue of alloy steel |
| 11/27/2013 | CN103409694A Steel for low-carbon microalloying bainite steel rails and manufacturing method thereof |
| 11/27/2013 | CN103409690A Low activation steel and making method thereof |
| 11/27/2013 | CN103409686A Production method of Q345D steel plate |
| 11/27/2013 | CN103409685A Seamless steel pipe for conventional island in nuclear power plant and production process thereof |
| 11/27/2013 | CN103409684A High-strength cold-rolled magnetic pole steel and preparation method thereof |
| 11/27/2013 | CN103409683A 600MPa hot rolled ribbed steel bar and production method thereof |
| 11/27/2013 | CN103409682A Method for producing superfine steel wires from high-carbon steel wire rod |
| 11/27/2013 | CN103409613A Method for realizing gradient property distribution of hot stamping workpiece |
| 11/27/2013 | CN103409604A Production process of high-magnetic-strength non-oriented silicon steel sheet |
| 11/27/2013 | CN103409603A Forging processing technique for Fe-Si-B magnetic material |
| 11/27/2013 | CN103409602A Method for manufacturing alloy steel pipe for micro-decarburization high-strength highly abrasion-resistant cylinder sleeve |