| Patents for C21D 6 - Heat treatment of ferrous alloys (4,815) |
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| 12/12/2013 | US20130327446 Maraging steel |
| 12/11/2013 | EP2671955A1 Maraging steel |
| 12/11/2013 | CN103436822A Preparation method for high-strength cold forging steel rivet with uniform structure properties |
| 12/11/2013 | CN103436820A Preparation method for cold heading steel material for riveted joint |
| 12/11/2013 | CN103436819A Preparation method for alloy cold forging steel material used for riveted joint |
| 12/11/2013 | CN103436812A Alloy cold-working die steel and preparation method thereof |
| 12/11/2013 | CN103436808A Low-carbon equivalent high strength and toughness cast steel and preparation method thereof |
| 12/11/2013 | CN103436801A Preparation method for steel riveted joint material |
| 12/11/2013 | CN103436800A Iron-chromium alloy having high wear and corrosion resistance and corrosion resistance |
| 12/11/2013 | CN103436798A Preparation method for drawing-die steel material |
| 12/11/2013 | CN103436793A Manufacturing method for alloy steel for automobile wheel hub |
| 12/11/2013 | CN103436785A Manufacturing method for heat treatment-free cold forging steel used for riveted joint |
| 12/11/2013 | CN103436766A Preparation method for nickel-chrome-containing alloy steel |
| 12/11/2013 | CN103436764A Process for producing heat-resisting alloy steel casting below 1100 DEG C |
| 12/11/2013 | CN103436687A Controlled cooling technology of high-alloy tool steel |
| 12/11/2013 | CN103436686A Tempering technology of G18CrMo2-6 steel |
| 12/11/2013 | CN103436672A Thermal treatment method for 14Cr17Ni2 stainless steel |
| 12/11/2013 | CN103436671A Special equipment for two-medium quenching heat treatment and cooling and technology of equipment |
| 12/10/2013 | US8603265 Ni-based alloy high-chrome steel structure and manufacturing method of the same |
| 12/04/2013 | CN203320064U Water cooling system of steel plate quenching device |
| 12/04/2013 | CN103430248A 磁性材料 Magnetic materials |
| 12/04/2013 | CN103421939A Rolling method of 430-type ferrite stainless steel for deep drawing |
| 12/04/2013 | CN103421938A Heat treatment process for FV520B-S material for impeller |
| 12/04/2013 | CN102851470B Heat treatment technique capable of overcoming bulky or cellular precipitation of superhigh-carbon steel carbide |
| 12/03/2013 | US8597441 Method for producing partially hardened steel components |
| 11/28/2013 | WO2013174655A1 Method for producing a component composite |
| 11/28/2013 | US20130312880 Duplex stainless steel and production method therefor |
| 11/27/2013 | CN103409612A Treatment method of stainless steel material |
| 11/27/2013 | CN103409601A Heat treatment method for super-alloy electromagnetic stirring roller used in high-temperature environment |
| 11/26/2013 | DE212012000088U1 Metallurgisch verbundener rostfreier Stahl Metallurgically connected stainless steel |
| 11/21/2013 | WO2013171231A1 High strength steel with increased e-modulus and method for producing said steel |
| 11/20/2013 | EP2664689A1 Grain-oriented magnetic steel sheet and process for manufacturing same |
| 11/20/2013 | EP2664683A1 Process for producing a mesoporous carbide |
| 11/20/2013 | EP2663664A1 High thermal diffusivity and high wear resistance tool steel |
| 11/20/2013 | EP2392683B1 High-strength hot-dip galvanized steel sheet and manufacturing method therefor |
| 11/20/2013 | CN103403207A Manufacturing method for cold-working die |
| 11/20/2013 | CN103397270A High-strength wear-resistant alloy cast steel and preparation method thereof |
| 11/20/2013 | CN103397268A Wear-resistant cast steel and preparation method thereof |
| 11/20/2013 | CN103397154A Method for increasing high temperature persistent mechanical property of ZG40Cr25Ni20 |
| 11/20/2013 | CN103397148A Method for formulating water-air alternate time-controlled quenching process |
| 11/14/2013 | WO2013167628A1 Tough bainitic heat treatments on steels for tooling |
| 11/13/2013 | EP2662461A1 Iron-chromium-manganese-nickel alloy |
| 11/13/2013 | EP2662460A1 Tough bainitic heat treatments on steels for tooling |
| 11/13/2013 | EP2662166A1 Material with high wear resistance |
| 11/13/2013 | CN102105604B Manufacturing method for machine parts having superior rolling-contact fatigue life |
| 11/07/2013 | WO2012061282A3 Glassy nano-materials |
| 11/06/2013 | EP2660348A1 Die steel having superior rusting resistance and thermal conductivity, and method for producing same |
| 11/06/2013 | CN102471857B Fe-based amorphous alloy, powder core using the same, and coil encapsulated powder core |
| 11/06/2013 | CN102352479B Method of heat treatment for steel, method of producing mechanical component, and mechanical component |
| 10/30/2013 | EP2655682A1 Method of producing a nano-twinned titanium material by casting |
| 10/30/2013 | CN102534149B Heat treatment process for rolling mill guide alloy |
| 10/23/2013 | EP2653569A1 High-carbon chromium bearing steel, and process for production thereof |
| 10/23/2013 | CN103370436A Duplex stainless steel, and process for production thereof |
| 10/23/2013 | CN103370435A 双相不锈钢 Duplex stainless steel |
| 10/16/2013 | EP2649214A2 Process for manufacturing high manganese content steel with high mechanical resistance and formability, and steel so obtainable |
| 10/16/2013 | CN103352181A Si-Bi-Mn-Be series Fe-based amorphous alloy ribbon and preparation method thereof |
| 10/16/2013 | CN103352173A Preheat treatment method for 18CrNiMo7-6 alloy steel forged pieces |
| 10/16/2013 | CN103352163A Double phase cast iron cylinder liner produced through centrifugal casting, and processing technology thereof |
| 10/16/2013 | CN103352108A H13 molten steel cold and hot treatment process |
| 10/15/2013 | CA2695472C Secondary-hardening gear steel |
| 10/10/2013 | WO2013149657A1 Steel alloy |
| 10/10/2013 | US20130266821 High-strength galvanized steel sheet with high yield ratio having excellent ductility and stretch flange formability and method for manufacturing the same |
| 10/09/2013 | EP2647733A1 Bearing steel exhibiting excellent machinability after spheroidizing annealing and excellent resistance to hydrogen fatigue after quenching/tempering |
| 10/09/2013 | CN103343286A Pipeline steel smaller than 300MPa and production method thereof |
| 10/09/2013 | CN103343202A Quenching/subzero treatment method for heat treatment of low-temperature nickel steel |
| 10/09/2013 | CN103343201A Method for improving high-carbon martensitic stainless steel carbide |
| 10/09/2013 | CN103343200A Short-process thermal treatment method of large 35CrNi3MoV steel forgings |
| 10/03/2013 | WO2013146960A1 Motor rotor support and manufacturing method therefor |
| 10/03/2013 | WO2013146959A1 Motor rotor support and manufacturing method therefor |
| 10/03/2013 | WO2013146214A1 Steel for spring and method for producing same, and spring |
| 10/03/2013 | WO2013146124A1 Bearing steel material having superior rolling fatigue characteristics and a method for producing same |
| 10/02/2013 | EP2643488A1 Method for heat-treating high-strength iron alloys |
| 10/02/2013 | CN103339279A Process for manufacturing high manganese content steel with high mechanical resistance and formability, and steel so obtainable |
| 10/02/2013 | CN103334060A Graphite tool steel used for metal calendaring and manufacturing method of graphite tool steel |
| 10/02/2013 | CN103333997A Annealing heat treatment method of H13 die steel |
| 10/02/2013 | CN102362001B High-strength and high-ductility steel for spring, method for producing same, and spring |
| 09/26/2013 | US20130248057 Method for forming patterns on substrates and articles manufactured by the same |
| 09/25/2013 | EP2641988A1 Steel for wheel |
| 09/25/2013 | CN103320591A Heat treatment method of 30GrNi3MoV forged pieces |
| 09/25/2013 | CN103320584A Low-carbon alloy structural steel heat treatment method |
| 09/19/2013 | WO2013135868A1 Connecting element for low-temperature applications, compressor for operation in the low-temperature range |
| 09/18/2013 | EP2551367B1 Prehardened steel for mold for plastic molding |
| 09/18/2013 | CN103305669A Cryogenic treatment method for improving dimensional stability of GCr15 steel |
| 09/18/2013 | CN103305668A Thermal treatment method of 23CrNi3Mo and application of 23CrNi3Mo in drilling tool |
| 09/18/2013 | CN103305663A Martensite lath tissue refining method under effect of strong magnetic field of heat-resistant steel of 9-12% Cr system |
| 09/18/2013 | CN102592777B Low-cost sintered neodymium iron boron magnet and production method thereof |
| 09/12/2013 | US20130233454 High hardness, high toughness iron-base alloys and methods for making same |
| 09/12/2013 | US20130233452 New Classes of Non-Stainless Steels with High Strength and High Ductility |
| 09/11/2013 | EP2635717A2 Glassy nano-materials |
| 09/11/2013 | CN103290318A Wolfram carbide hard alloy and preparation method thereof |
| 09/11/2013 | CN103290188A Method for controlling martensite/austenite structure in process of straightening WB36 steel pipes |
| 09/11/2013 | CN103290182A Thermal treatment process of low-alloy steel casting |
| 09/04/2013 | CN203174149U Cooling production line of non-quenched and tempered steel after forging |
| 09/04/2013 | CN103282530A Die steel having superior rusting resistance and thermal conductivity, and method for producing same |
| 09/04/2013 | CN103276313A High-speed steel roll collar and heat treatment method |
| 09/04/2013 | CN103276300A Copper-containing antibacterial stainless steel and preparation method thereof |
| 09/04/2013 | CN103276179A Manufacturing method for pipe line steel with characteristics of high steel plasticity and double peak grain distribution |
| 09/04/2013 | CN103276163A Method for eliminating net-shaped and chain alloy carbides generated from steel containing Cr and Ni during heat treatment |
| 09/03/2013 | US8524016 Method of making an austempered ductile iron article |
| 08/28/2013 | CN103270184A Method of producing a nano-winned titanium material by casting |