| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 09/19/1978 | US4115155 Austenitizing, hot rolling, recrystallization |
| 09/19/1978 | CA1038796A1 Method of producing high strength steel pipe |
| 09/19/1978 | CA1038732A1 Method for producing a killed steel wire rod |
| 09/12/1978 | US4113523 Aluminum |
| 09/12/1978 | US4113517 Method of making cold-reduced al-killed steel strip for press-forming by continuous casting and continuous annealing process |
| 09/05/1978 | US4111032 Process for producing a metal sheet to be deep drawn or extra-deep drawn for the fabrication of shaped metal parts |
| 08/22/1978 | US4108695 Steel wire |
| 08/22/1978 | US4108694 Continuously cast slabs for producing grain-oriented electrical steel sheets having excellent magnetic properties |
| 08/15/1978 | US4106957 High carbon steel wire or cord for vehicle tires |
| 08/08/1978 | US4105474 Process for producing a high tension steel sheet product having an excellent low-temperature toughness with a yield point of 40 kg/mm2 or higher |
| 07/25/1978 | US4102713 Silicon steel and processing therefore |
| 07/25/1978 | US4102711 Method of producing a tube of ultra-high strength steel having remarkably improved ductility and toughness |
| 07/11/1978 | US4099992 Tubular products and methods of making the same |
| 06/20/1978 | US4096002 High duty ductile cast iron with superplasticity and its heat treatment methods |
| 05/30/1978 | US4092180 Austenitic stainless steels |
| 05/30/1978 | US4092179 Method of producing high strength cold rolled steel sheet |
| 05/30/1978 | US4092178 Process for producing a steel having excellent strength and toughness |
| 05/23/1978 | US4091146 Flexible, low porosity airfoil skin |
| 05/09/1978 | US4088513 Method for heating a silicon-containing steel slab in a walking-beam type heating furnace |
| 05/09/1978 | US4088511 Steels combining toughness and machinability |
| 05/02/1978 | US4087295 Mechanical and thermal treatment of steel wire |
| 05/02/1978 | US4087289 Anti-vibration steel material and a production method therefor |
| 04/25/1978 | US4086105 Method of producing fine-grain sheet or fine-grain plate of austenitic steels |
| 04/11/1978 | US4083220 Sub-zero temperature plastic working process for metal |
| 04/04/1978 | US4082576 Ultra-high strength low alloy titanium bearing flat rolled steel and process for making |
| 03/28/1978 | US4080715 Process for production of lamellar graphite-containing material |
| 03/14/1978 | US4078952 Controlling the manganese to sulfur ratio during the processing for high permeability silicon steel |
| 02/21/1978 | US4075437 Chromium, cobalt, iron, zirconium, aluminum niobium, and/or titanium |
| 02/21/1978 | US4075041 Combined mechanical and thermal processing method for production of seamless steel pipe |
| 02/21/1978 | US4074555 Method of and apparatus for improving hot-rolled sheet-metal strips |
| 02/14/1978 | US4073668 Method of producing silicon steel strip |
| 02/07/1978 | US4072543 Dual-phase hot-rolled steel strip |
| 01/31/1978 | US4071657 Metal sheet for drawing |
| 01/24/1978 | US4070209 Method of producing a high pressure fuel injection pipe |
| 01/24/1978 | US4070208 Method for the manufacture of a ridging-free ferritic stainless steel sheet |
| 01/10/1978 | US4067754 Cold rolled, ductile, high strength steel strip and sheet and method therefor |
| 01/03/1978 | US4066479 Process for producing non-directional electric steel sheets free from ridging |
| 01/03/1978 | US4066474 Method of making high strength cold reduced steel by continuous annealing process |
| 12/27/1977 | US4065329 Continuous heat treatment of cold rolled steel strip |
| 12/13/1977 | US4062700 Method for producing a steel sheet with dual-phase structure composed of ferrite- and rapidly-cooled-transformed phases |
| 11/29/1977 | US4060428 Process for forming ferrous billets into finished product |
| 11/15/1977 | US4058414 Automobiles |
| 11/15/1977 | US4057989 Method for levelling a metal strip or sheet |
| 10/18/1977 | US4054471 Processing for cube-on-edge oriented silicon steel |
| 10/18/1977 | US4054470 Boron and copper bearing silicon steel and processing therefore |
| 09/27/1977 | US4050959 Process of making a high strength cold reduced steel sheet having high bake-hardenability and excellent non-aging property |
| 09/13/1977 | US4047979 Heat treatment for improving the toughness of high manganese steels |
| 09/06/1977 | US4046602 Process for producing nonoriented silicon sheet steel having excellent magnetic properties in the rolling direction |
| 09/06/1977 | US4046600 Method of producing large diameter steel rods |
| 09/06/1977 | US4046598 Procedure for manufacture of steel band or strip |
| 09/06/1977 | US4046597 Vibration damping steel material and process for producing the same |
| 08/30/1977 | US4045254 Method for toughening treatment of metallic material |
| 08/23/1977 | US4043838 Method of producing pitting resistant, hot-workable austenitic stainless steel |
| 08/23/1977 | US4043170 Patenting process and apparatus combined with a wire |
| 08/16/1977 | US4042423 Method for providing strong wire and strip |
| 08/16/1977 | US4042421 Steels |
| 08/09/1977 | US4040875 Ductile cast iron articles |
| 08/09/1977 | US4040873 Method of making low yield point cold-reduced steel sheet by continuous annealing process |
| 08/09/1977 | US4040872 Rapid heating, quenching, working |
| 07/26/1977 | US4038109 Three phase heat treatment of steel sheet |
| 07/05/1977 | US4033789 Method of producing a high strength steel having uniform elongation |
| 06/28/1977 | US4032366 Grain-oriented silicon steel and processing therefor |
| 06/21/1977 | US4030950 Process for cube-on-edge oriented boron-bearing silicon steel including normalizing |
| 06/07/1977 | US4028144 Cobalt-nickel-chromium-copper or titanium-iron |
| 05/31/1977 | USRE29240 As-worked, heat treated cold-workable hypoeutectoid steel |
| 05/31/1977 | US4026729 Method of making a soft steel sheet by continuous annealing |
| 05/31/1977 | US4026108 Control devices for hydrostatic transmissions |
| 05/17/1977 | US4023990 Dynamo or electro band |
| 05/17/1977 | US4023600 Method of producing wire mesh |
| 05/10/1977 | US4022640 Tensile strength |
| 04/26/1977 | US4019929 Enameling cold rolled steel sheet with a high enamel adhesive property |
| 04/19/1977 | US4018634 Method of producing high strength steel pipe |
| 04/12/1977 | US4017338 Steel member for reinforcing rubber composites and method of making same |
| 04/12/1977 | US4016740 Method and an apparatus for the manufacture of a steel sheet |
| 04/05/1977 | US4016015 Rolled steel rod or bar |
| 04/05/1977 | US4016012 Method for surface treatment of metallic materials |
| 04/05/1977 | US4016009 Producing rolled steel products |
| 03/29/1977 | US4014717 Method for the production of high-permeability magnetic steel |
| 03/08/1977 | US4011111 High strength, deep drawing quality, low carbon steel, article formed therefrom, and method for production thereof |
| 03/08/1977 | US4011109 Method for producing steel filaments |
| 03/08/1977 | US4011106 Hot-rolled steel sheet of high cold formability and method of producing such steel sheet |
| 03/01/1977 | US4010050 Processing for aluminum nitride inhibited oriented silicon steel |
| 02/15/1977 | US4008103 Process for the manufacture of strong tough steel plates |
| 02/08/1977 | US4007064 Process of producing surface-decarburized steel sheets or plates |
| 02/08/1977 | US4007038 Pitting resistant stainless steel alloy having improved hot-working characteristics |
| 02/01/1977 | US4006044 Steel slab containing silicon for use in electrical sheet and strip manufactured by continuous casting and method for manufacturing thereof |
| 01/04/1977 | US4001052 Hot-rolled low-carbon steel strip with an excellent press-workability capable of forming smooth pressed surface and a method of making the same |
| 12/28/1976 | US4000017 Low alloy steel |
| 12/28/1976 | US4000015 Processing for cube-on-edge oriented silicon steel using hydrogen of controlled dew point |
| 12/14/1976 | US3997373 Ferritic stainless steel having high anisotropy |
| 11/09/1976 | US3990924 Method for producing high magnetic flux density grain-oriented electrical steel sheet and strips having excellent characteristics |
| 11/09/1976 | US3990923 Method of producing grain oriented electromagnetic steel sheet |
| 10/26/1976 | US3988177 Decarburization and recrystallizing annealing |
| 10/26/1976 | US3988174 Hot rolled steel sheet having excellent workability and method thereof |
| 10/26/1976 | US3988173 Cold rolled steel sheet having excellent workability and method thereof |
| 10/19/1976 | US3986902 Silicon steel suitable for production of oriented silicon steel using low slab reheat temperature |
| 10/12/1976 | US3985514 Hot rolled composite billet for nuclear control rods |
| 09/28/1976 | US3982969 Low silicon high strength low alloy steel |
| 09/14/1976 | USRE28964 Ultrahigh strength steels |
| 09/07/1976 | US3979231 Method for producing large diameter steel pipes |