| Patents for C21D 8 - Modifying the physical properties by deformation combined with, or followed by, heat treatment (18,654) |
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| 01/18/1984 | EP0098324A1 Process for producing aluminum-bearing grain-oriented silicon steel strip |
| 01/17/1984 | US4426235 Cold-rolled high strength steel plate with composite steel structure of high r-value and method for producing same |
| 01/04/1984 | EP0097254A2 Process for manufacturing and treating high-alloy stainless ferritic chromium-molybdenum-nickel steels |
| 01/03/1984 | US4424083 Cold working, crystallization, oxidation |
| 12/27/1983 | US4422884 Method of treating a continuously cast strand formed of stainless steel |
| 12/20/1983 | US4421574 Method for suppressing internal oxidation in steel with antimony addition |
| 12/20/1983 | US4421573 Method for producing hot-rolled dual-phase high-tensile steel sheets |
| 12/20/1983 | US4421572 Stainless steels for nuclear reactors |
| 12/20/1983 | US4421571 Alloy of nickel, chromium, and molybdenum or tungsten |
| 12/13/1983 | US4420347 Rolling, descaling |
| 12/08/1983 | WO1983004267A1 Divorced eutectoid transformation process and product of ultrahigh carbon steels |
| 11/22/1983 | US4416707 Secondary recrystallized oriented low-alloy iron |
| 11/15/1983 | US4415380 Annealing; cooling; deforming; aging; ferromagnetism; switches |
| 11/15/1983 | US4415378 Carburized surface of untempered martensite and austenite |
| 11/15/1983 | US4415377 Cold rolling; strain-free martensite; hardening and straining |
| 11/15/1983 | US4415376 Formable high strength low alloy steel sheet |
| 11/09/1983 | EP0093218A1 High strength steel screws and bolts, and method of production |
| 11/08/1983 | US4414042 Method of making high strength steel tube |
| 11/02/1983 | EP0092815A2 A car stabilizer and a manufacturing method therefor |
| 11/02/1983 | EP0092629A1 Process for the manufacture of rods and tubes from steels with great mechanical properties |
| 10/25/1983 | US4411714 Annealing at a temperature above that required for transition to austenite, cold rolling, and quenching |
| 10/18/1983 | US4410372 Process for producing deep-drawing, non-ageing, cold rolled steel strips having excellent paint bake-hardenability by continuous annealing |
| 10/18/1983 | US4410369 Manufacture of electrically welded steel pipe |
| 10/05/1983 | EP0090115A2 Cold worked ferritic alloys and components |
| 10/04/1983 | US4407683 Rapid heating and cooling |
| 10/04/1983 | US4407680 Dual-phase steels |
| 09/28/1983 | EP0089436A2 Method of thermomechanically treating alloys |
| 09/27/1983 | US4406715 Process for producing grain-oriented electromagnetic steel strip |
| 09/27/1983 | US4406713 Method of making high-strength, high-toughness steel with good workability |
| 09/27/1983 | US4406711 Method for the production of homogeneous steel |
| 09/21/1983 | EP0089195A1 Method of producing grain-oriented silicon steel sheets having excellent magnetic properties |
| 09/20/1983 | US4405386 Process and apparatus for improving cold rollability and/or strip annealability of metals and metal alloys |
| 09/20/1983 | US4405381 Surface skin not killed while core is killed steel |
| 09/13/1983 | US4404047 Process for the improved heat treatment of steels using direct electrical resistance heating |
| 09/13/1983 | US4404041 Method of producing elongated large-size forged article |
| 09/07/1983 | EP0087587A1 An electromagnetic steel sheet treated by laser-beam irradiation |
| 09/06/1983 | US4402767 Fabrication of alloys |
| 09/01/1983 | WO1983002957A1 Process for manufacturing cold-rolled steel having excellent press moldability |
| 08/23/1983 | US4400223 Alloy of carbon, manganese, niobium, vanadium, nitrogen, silicon, sulfur, phosphorus, aluminum, and iron; high strength |
| 08/17/1983 | EP0085720A1 Process for manufacturing cold rolled deep-drawing steel plate showing delayed aging properties and low anisotropy |
| 08/17/1983 | EP0016846B1 Process for producing high-strength cold-rolled steel plate for press working |
| 08/16/1983 | US4398950 High strength cold rolled, weldable steel strip |
| 08/09/1983 | US4397699 Without overageing treatment |
| 08/09/1983 | US4397698 Method of making as-hot-rolled plate |
| 08/09/1983 | US4397697 Toughness, impact strength |
| 08/03/1983 | EP0084980A2 Non-oriented electrical steel sheet having a low watt loss and a high magnetic flux density and a process for producing the same |
| 08/03/1983 | EP0084569A1 Process for manufacturing isotropic electromagnetic steel plate having excellent magnetic characteristics |
| 07/26/1983 | US4395296 Controlled rolling; first at high temperature, quenching then low temperature |
| 07/19/1983 | US4394192 Hot and cold rolling, coiling, annealing, motors |
| 07/19/1983 | US4394189 High performance tubulars for critical oil country applications and improved process for their preparation |
| 07/19/1983 | US4394188 Hot rolling, coiling, cold rolling |
| 07/19/1983 | US4394186 Method for producing a dual-phase steel sheet having excellent formability, high artificial-aging hardenability after forming, high strength, low yield ratio, and high ductility |
| 07/12/1983 | USRE31306 Low temperature annealing |
| 07/12/1983 | CA1149711A1 Hot strips or heavy plates from a denitrated steel and method for their manufacture |
| 07/06/1983 | EP0083191A2 Thermal mechanical treatment for enhancing high temperature properties of cast austenitic steel structures |
| 07/05/1983 | US4391653 Process for producing cold rolled steel strip having excellent mechanical strength and useful for motor vehicles |
| 07/05/1983 | US4391587 Slab heating furnace |
| 06/28/1983 | US4390378 Method for producing medium silicon steel electrical lamination strip |
| 06/28/1983 | US4390377 Novel continuous, high speed method of galvanizing and annealing a continuously travelling low carbon ferrous wire |
| 06/28/1983 | US4390367 High-alloyed steel being resistive to corrosion by natural gas |
| 06/22/1983 | EP0081847A1 Enameling process |
| 06/14/1983 | US4388123 Method for the manufacture of steel suitable for electric-welded tubular products having superior resistance to sour gas |
| 06/14/1983 | US4388122 Controlled cooling to produce ferrite/bainite composite |
| 06/08/1983 | EP0080809A1 A method of making wrought high tension steel having superior low temperature toughness |
| 05/24/1983 | USRE31251 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 |
| 05/11/1983 | EP0078694A2 Method of producing elongate large-size forged article |
| 05/03/1983 | US4381660 Carbon dioxide spray cooling during stretching of stainless steel weld |
| 04/26/1983 | USRE31221 Cold rolled, ductile, high strength steel strip and sheet and method therefor |
| 04/19/1983 | US4380480 Method of making one-piece tubular axle blanks and the produced axle blanks |
| 04/19/1983 | CA1144847A1 Method for producing steel strip for tin plate and tin-free steel plate in various temper grades |
| 04/13/1983 | EP0076317A1 Implantation of molybdenum disulfide into certain metallic surfaces by mechanical inclusion |
| 04/12/1983 | US4379745 Carburization resistance of austenitic stainless steel tubes |
| 04/12/1983 | US4379725 Process for hot isostatic pressing of a metal workpiece |
| 04/12/1983 | CA1144403A1 Process for producing high-tension bainitic steel having high-toughness and excellent weldability |
| 04/06/1983 | EP0076109A2 Method of producing grain-oriented silicon steel sheets having excellent magnetic properties |
| 04/06/1983 | EP0075803A1 Process for producing cold rolled steel sheets having excellent press formability and ageing behaviour |
| 04/05/1983 | CA1143916A1 Method for making fasteners |
| 04/05/1983 | CA1143915A1 Method for making fasteners |
| 03/30/1983 | EP0075292A1 Method for producing a cold rolled steel sheet |
| 03/29/1983 | US4378246 Precipitation hardening type stainless steel for spring |
| 03/23/1983 | EP0074715A1 Method for producing oriented silicon steel having improved magnetic properties |
| 03/22/1983 | US4377797 Magnetically actuated device comprising an Fe-Mo-Ni magnetic element |
| 03/15/1983 | US4376661 Hot rolling, cold rolling, heat treatment and cooling |
| 03/02/1983 | EP0073092A1 Method of manufacturing T-3 grade low temper blackplates |
| 03/02/1983 | EP0072867A1 Process for manufacturing high-tensile hot-rolled steel strip having a low yield ratio due to its mixed structure |
| 03/01/1983 | US4375377 Steels which are useful in fabricating pressure vessels |
| 03/01/1983 | CA1142069A1 Process for producing two-phase high tension cold rolled steel sheet having improved workability |
| 03/01/1983 | CA1142068A1 Process for producing high strength cold rolled steel sheet having excellent paintability, weldability and workability |
| 02/22/1983 | US4374683 Process for manufacturing ferritic stainless steel sheet having good formability, surface appearance and corrosion resistance |
| 02/22/1983 | US4374682 Process for producing deep-drawing cold rolled steel strips by short-time continuous annealing |
| 02/22/1983 | CA1141631A1 Electro magnetic steels |
| 02/17/1983 | WO1983000507A1 Process for manufacturing cold rolled deep-drawing steel plate showing delayed aging properties and low anisotropy |
| 02/17/1983 | WO1983000506A1 Process for manufacturing isotropic electromagnetic steel plate having excellent magnetic characteristics |
| 02/15/1983 | US4373973 Method of manufacture of high performance gears |
| 02/15/1983 | US4373972 Controlled cooling after rolling to produce a martensitic microstructure; concrete reinforcement; low temperature |
| 02/15/1983 | US4373971 Process for the production of ferritic stainless steel sheets or strips and products produced by said process |
| 02/09/1983 | EP0071270A1 Process for producing an austenitic stainless steel sheet or strip |
| 02/09/1983 | EP0071195A2 Process for manufacturing hot extruded alloy products |
| 02/08/1983 | CA1140841A1 Electro magnetic steels |
| 02/01/1983 | US4371405 Process for producing grain-oriented silicon steel strip |