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Class Information
Number: 420/79
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > Four percent or more aluminum containing > Chromium containing
Description: Alloy or metallic composition which additionally contains chromium.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8580190 Durable iron-chromium-aluminum alloy showing minor changes in heat resistance Nov. 12, 2013
8431072 Cast alumina forming austenitic stainless steels Apr. 30, 2013
8257646 Components made of steels with an ultrahigh carbon content and with a reduced density and high scaling resistance Sep. 4, 2012
8202629 Cladding tubes made of ferritic/martensitic or austenitic steel for nuclear fuel elements/fuels and method for subsequently treating a FeCrA protective layer thereon that is suited for high te Jun. 19, 2012
8153054 High-temperature alloy Apr. 10, 2012
8012271 Material for components of a gas turbine Sep. 6, 2011
7601672 High Al stainless steel sheet and honeycomb bodies employing them Oct. 13, 2009
6905651 Ferritic stainless steel alloy and its use as a substrate for catalytic converters Jun. 14, 2005
6830676 Coking and carburization resistant iron aluminides for hydrocarbon cracking Dec. 14, 2004
6652991 Ductile NiAl intermetallic compositions Nov. 25, 2003
6627007 Surface modified stainless steel Sep. 30, 2003
6582835 Coated ferrite stainless steel sheet usable in the automobile exhaust sector Jun. 24, 2003
6524405 Iron base high temperature alloy Feb. 25, 2003
6436163 Metal filter for high temperature applications Aug. 20, 2002
6383662 Light weight steel and its use for car parts and facade linings May. 7, 2002
6355212 Alloy for corrosion-resistant coatings or surface coatings Mar. 12, 2002
6296953 Steel alloy for compound tubes Oct. 2, 2001
6267921 Nickel-Free stainless steel for biomedical applications Jul. 31, 2001
5944917 Stainless steel for ozone added water and manufacturing method thereof Aug. 31, 1999
5670216 Cooking untensil, intermediate layer for non-stick coating of a cooking untensil, and method Sep. 23, 1997
5653032 Iron aluminide knife and method thereof Aug. 5, 1997
5618491 Studs for boilers and other high temperature applications Apr. 8, 1997
5422070 Oxidation-resistant and corrosion-resistant alloy based on doped iron aluminide, and use of said alloy Jun. 6, 1995
5411702 Iron-aluminum alloy for use as thermal-shock resistance material May. 2, 1995
5286442 High-aluminum-containing ferritic stainless steel having improved high-temperature oxidation resistance Feb. 15, 1994
5278881 Fe-Cr-Mn Alloy Jan. 11, 1994
5238645 Iron-aluminum alloys having high room-temperature and method for making same Aug. 24, 1993
5165899 Element for filtering and/or purifying hot gases, and a process for manufacturing same Nov. 24, 1992
5158744 Oxidation- and corrosion-resistant alloy for components for a medium temperature range based on doped iron aluminide, Fe.sub.3 Al Oct. 27, 1992
5129959 Sulfur treatment of magnesium-contaminated Fe-Cr-Al alloy for improved whisker growth Jul. 14, 1992
5130085 High Al austenitic heat-resistant steel superior in hot workability Jul. 14, 1992
5085829 Oxidation resistant Fe-Cr-Al steel Feb. 4, 1992
4961903 Iron aluminide alloys with improved properties for high temperature applications Oct. 9, 1990
4870046 Rolled high aluminum stainless steel foil for use as a substrate for a catalyst carrier Sep. 26, 1989
4861548 Seawater-corrosion-resistant non-magnetic steel materials Aug. 29, 1989
4859649 Semi-finished products of ferritic steel and catalytic substrate containing same Aug. 22, 1989
4844865 Seawater-corrosion-resistant non-magnetic steel materials Jul. 4, 1989
4836981 Concrete reinforcing steel bar or wire Jun. 6, 1989
4834806 Corrosion-resistant structure comprising a metallic surface and an amorphous alloys surface bonded thereupon May. 30, 1989
4784984 Stainless steel ribbon for use as a catalyst carrier for automobile exhaust gas and catalyst carrier containing the ribbon coiled into a honeycomb Nov. 15, 1988
4780276 Castable hot corrosion resistant alloy Oct. 25, 1988
4769214 Ultrahigh carbon steels containing aluminum Sep. 6, 1988
4735865 Magnetic head core Apr. 5, 1988
4615732 Fe-Al-Cr-P-(B,C) amorphous alloy Oct. 7, 1986
4535034 High Al heat-resistant alloy steels having Al coating thereon Aug. 13, 1985
4498928 Ductile duplex iron-based alloy containing aluminum Feb. 12, 1985
4435212 High permeability alloy Mar. 6, 1984
4398951 Fermalloy(Fe-Mn-Al stainless steel) Aug. 16, 1983
4298381 Abrasion-resistive high permeability magnetic alloy Nov. 3, 1981
4259126 Method of making razor blade strip from austenitic steel Mar. 31, 1981

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