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| Number | Title | Issue Date |
| 7976650 | Method for production of sheet of austenitic iron/carbon/manganese steel and sheets produced thus The invention relates to a process for manufacturing a corrosion-resistant cold-rolled sheet of iron-carbon-manganese austenitic steel, comprising the following steps: a sheet whose chemical composition comprises, the contents being expressed by weight: 0.35%≦C≦... | 07/12/2011 |
| 7588651 | Method for producing a steel product The invention provides a method which allows reliable production of steel products from a light steel. The steel products according to the invention exhibit isotropic deformation behavior and are ductile at low temperature with high yield strengths. This is achieved... | 09/15/2009 |
| 6761780 | Method of manufacturing a high Mn non-magnetic steel sheet for cryogenic temperature use A method of manufacturing a high Mn non-magnetic steel sheet having low permeability at a cryogenic temperature suitable for use in large scale particle accelerators, the method comprises rolling a steel material containing, on the wt % basis, from 0.05 to 0.18% of ... | 07/13/2004 |
| 6358338 | Process for manufacturing strip made of an iron-carbon-manganese alloy, and strip thus produced The invention relates to a process for producing strip made of an iron-carbon-manganese alloy, in which: a thin strip, having a thickness of 1.5 to 10 mm, is cast directly on a casting machine from a liquid metal of composition, in percentages by weight: ... | 03/19/2002 |
| 5833919 | Fe-Mn-Cr-Al cryogenix alloy and method of making The present invention provides a Fe--Mn--Cr--Al cryogenic alloy having high ductility, strength, toughness and corrosion-resistance, and a process for preparing the same. The cryogenic structural alloy of the invention is prepared by the steps of: air-ind... | 11/10/1998 |
| 5810950 | Methods for annealing and pickling high manganic cold rolled steel sheet Methods for annealing and pickling high manganese cold rolled steel sheets for use in automobiles and electronic panels in which a superior formability and high strengths are required are disclosed. That is, the invention provides a method for annealing a... | 09/22/1998 |
| 5647922 | Process for manufacturing high manganese hot rolled steel sheet without any crack A high manganese steel having superior hot workability is disclosed, in which small amounts of the alloying elements are added into a high manganese steel of Fe-Mn-Al-C system, so that the rupture strength of the grain boundaries of columnar crystals can ... | 07/15/1997 |
| 5634990 | Fe-Mn vibration damping alloy steel and a method for making the same An Fe-Mn vibration damping alloy steel having a mixture structure of &3xb5;, ' and γ. The alloy steel consists of iron, manganese from 10 to 24% by weight and limited amounts of impurities. The alloy steel is manufactured by preparing an ingot at ... | 06/03/1997 |
| 5431753 | Manufacturing process for austenitic high manganese steel having superior formability, strengths and weldability An austenitic high manganese steel having superior formability, strengths and weldability, and a process for manufacturing the steel, are disclosed. The superior formability of the steel is suitable for use on automobiles and electronic panel. The steel h... | 07/11/1995 |
| 5290372 | Fe-Mn group vibration damping alloy manufacturing method thereof A vibration damping alloy has a mixed structure of martensite and austenite. The alloy steel is iron-based to which 14-22% by weight of manganese is added. The vibration damping alloy is manufactured by mixing electrolytic iron and manganese in a molten s... | 03/01/1994 |
| 4968357 | Hot-rolled alloy steel plate and the method of making A hot-rolled alloy steel plate with fully austenitic structure consisting essentially of 4.5 to 10.5 wt % aluminum, 22 to 36 wt % manganese, 0.4 to 1.25 wt % carbon and at least one of the following constituents, 0.06 to 0.50 wt % titanium, 0.02 to 0.20 w... | 11/06/1990 |
| 4847046 | Ultra-low temperature alloy and process for manufacturing the same A new Fe-Mn-Al-C-Nb-Si-Cu alloy for use in ultra-low temperature materials is provided. The alloy has the following composition: 25 to 35 percent by weight manganese, 2 to 10 percent by weight aluminum, 0.1 to 0.8 percent by weight carbon, 0.01 to 0.2 per... | 07/11/1989 |
| 4514236 | Method of manufacturing an article of non-magnetic austenitic alloy steel for a drill collar A non-magnetic austenitic alloy steel capable of producing the magnetic properties required in items such as Drill Collars in the as-rolled or as-rolled and direct quenched condition. The steel composition includes by weight up to 0.5% carbon from 10 to 25% ... | 04/30/1985 |
| 4256516 | Method of manufacturing non-magnetic Fe-Mn steels having low thermal expansion coefficients and high yield points Low nonmagnetic steel having a thermal expansion coefficient of 1.0~1.3×10-5 /°C. and a high yielding point of higher than 36 Kg/mm2 consists of less than 0.5% by weight of C, less than 2% by weight of Si, 20~30% by weight of Mn, a... | 03/17/1981 |
